萬代 List of Products and Services

"Concerns about quality in overseas processing" — a site in Dalian challenges that perception. The processing partner that Bandai visited in China specializes in single-item, multi-variety small-batch production and offers a wide range of services from machining, turning, grinding, wire cutting, to welding. In terms of process management, they rigorously implement work instructions, creating a system that ensures quality and delivery times are maintained regardless of who is performing the processing. On the inspection side, they are equipped with multiple three-dimensional measuring machines in a temperature-controlled inspection room, conducting 100% inspections and issuing inspection reports for both prototypes and mass production. In the event of defects, they quickly resolve issues from internal sharing to root cause analysis and re-manufacturing, implementing horizontal deployment for recurrence prevention. They execute quality management based on Japanese standards as a matter of course while maintaining the cost competitiveness unique to China. This is a processing site that design and purchasing professionals who do not want to compromise on quality or price should definitely know about. *Such efforts are just a small part of what Bandai engages in daily. Please take a look at the value we can offer to our customers.

• Other machine elements

The decorative parts of train cars, particularly around the headlights, are crucial areas where the quality of appearance directly influences the overall impression of the vehicle. What we were consulted about this time was a high-difficulty decorative part made of stainless steel with a welded structure, which required that no welding marks be left on the surface at all. The key to our response was the process design based on the assumption of post-welding burn removal and surface roughness management through buff polishing. The weld bead was completely eliminated, resulting in a surface that was uniform and reflective. Honestly, it’s at a level where you might think, "Are we really going this far?" but the team is in a serious mode, looking for further improvements! The true capability of precision sheet metal processing lies in achieving not only strength and dimensional accuracy but also including appearance quality. The difference in processing technology cannot be hidden, especially for "visible parts" like decorative components. *This kind of response is just a small part of what Bandai does every day. Please take a look at the value we can provide to our customers.

• Other machine elements

In aluminum gravity casting, it is important not only to meet strength requirements but also to focus on comprehensive quality design that includes precision and appearance. Even if there are no issues on the drawings, there are often points that can only be noticed when seeing the actual product during prototyping or mass production preparation. In this project, we adopted a manufacturing process that combines gravity casting and machining, collaborating with casting and machining vendors from the design stage. Three key points emerged that require particular attention. The first is the ejector pin marks. Even if there are no issues in terms of strength, a slight protrusion can lead to an appearance that feels off. The second is burrs. They may not be noticeable immediately after casting but can appear as defects after surface treatment. The third is the management of geometric tolerances. Subsequent processes, such as inserting helicoils, can affect precision, such as symmetry. In gravity casting, prior alignment with a view of the entire process is key to stabilizing quality. If you are considering castings, please feel free to consult with us. *Such efforts are just a small part of what Bandai does on a daily basis. Please take a look at the value we can provide to our customers.

• Other machine tools

When drawing a blueprint, have you ever found yourself stopping and wondering, "How will I process this diagonal groove?" Grooves that stop midway or fine shapes with a width of around 0.1mm can be challenging cases for wire-cut electrical discharge machining. At Bandai, we collaborate with our processing partner in Dongguan, China, to respond to such design intentions using die-sinking electrical discharge machining. This time, we tackled a high-difficulty shape that includes four diagonal grooves at a 5° angle inside a hole, all in one process using a dedicated electrode. We confirmed the shape accuracy with a three-dimensional measuring machine for all parts, ensuring they are reliable components even with short delivery times. If you ever find yourself wondering, "How will I process this shape?" please feel free to consult us. *This kind of response is just a small part of what Bandai does every day. Please take a look at the value we can provide to our customers.

• Other processing machines

In the aerospace industry, redesign requires advanced technology and strict quality control. In particular, when manufacturing metal parts due to design changes, timely delivery and high-quality component procurement are essential. If processing cannot be done according to the drawings, it may lead to delays in the entire project and increased costs. Bandai leverages the unique ideas of a trading company to utilize the strengths of multiple companies, achieving difficult processing and short delivery times, thereby leading redesign projects to success. 【Usage Scenarios】 - Manufacturing of metal parts due to design changes - Component procurement during the prototype stage - Alternative procurement when existing suppliers are unable to respond 【Benefits of Implementation】 - Timely supply of components - Assurance of high-quality parts - Potential cost reduction - Mitigation of project delay risks

• Processing Contract
• Contract manufacturing
• Other services

In the medical device industry, there is a trend towards miniaturization and precision of products, leading to a demand for fine welding techniques. Especially for products such as implants and surgical instruments, which require high precision and safety, the quality of welding significantly affects the product's performance and safety. Welding defects can lead to product malfunctions and pose risks to patients. Our fiber laser welding, offered through our "Hometown Processing Network," boasts a finishing quality that was featured as an example of the beauty of fiber laser welding on the popular NHK variety show "Ariyoshi's Money Discovery: Attack! Kaneo-kun." [Application Scenes] - Joining of fine components - Comparison and examination of high-quality welding techniques - Improvement of welding technology in medical device manufacturing [Effects of Implementation] - Realization of high-quality welding technology - Increased reliability of products - Streamlining of manufacturing processes

• Other machine elements

In the agricultural machinery industry, robustness that can withstand harsh environments is required. Exposed to soil, vibrations, and changes in weather, the quality of welding is a crucial factor that affects the durability of the machinery. Improper welding can lead to machine failures or performance degradation, potentially resulting in decreased work efficiency and increased costs. The fiber laser welding provided by our "Hometown Processing Network" boasts a finishing quality that was featured as an example of the beauty of fiber laser welding on the popular NHK variety show "Ariyoshi's Money Discovery: Attack! Kaneo-kun." [Usage Scenarios] * Manufacturing of tractors, combines, tillers, etc. * Repair and maintenance of agricultural heavy machinery * Manufacturing of machines that can withstand harsh environments [Benefits of Implementation] * Ensuring high durability and reliability * Extending product lifespan * Reducing maintenance costs

• Other machine elements

In the shipbuilding industry, advanced waterproofing performance is essential to ensure the durability and safety of the hull. In particular, reliable welding technology is required to prevent seawater intrusion and protect onboard equipment and cargo. Poor welding can lead to corrosion and water ingress, potentially resulting in serious accidents. Our company contributes to improving waterproof performance in shipbuilding by utilizing fiber laser welding technology to provide high-precision and robust welds. 【Application Scenarios】 - Welding of hull outer plates - Welding of tanks and containers - Welding of piping and cable penetrations 【Benefits of Implementation】 - Achieving high waterproof performance - Enhancing long-term durability - Improving safety

• Other machine elements

"Can you perform this bending process?" This is a common question we receive regarding the processing of pipe materials and round bars. Various conditions are involved, such as bending radius, total length, axis diameter, wall thickness, tolerances, lot size, and whether there are subsequent processes. In some cases, it may be difficult to process exactly according to the drawings... At Bandai, in addition to conventional NC pipe bending and bending using press brakes, we also accommodate bending using molds and artisan techniques like hand bending with burner heating. Sometimes, welding is also utilized in the bending process... Furthermore, in addition to secondary processing such as drilling and shaft end processing, we can consistently respond to assembly needs through welding by leveraging the "Hometown Processing Network," which consists of unique processing companies nationwide. From single prototype bending to mass production and assembly items that require multiple processes, please feel free to consult with us! ＼ We are currently offering case studies to solve your machine parts procurement issues! ／ For more details, please check the PDF data from "Catalog Download." If you have any concerns regarding machine parts procurement, please feel free to contact us.

• Processing Contract

Bandai boasts an "unwavering procurement capability." This time, we would like to introduce a case where we delivered the "precision single-row cylindrical roller bearing," necessary for spindle prototyping, from a lead time of six months for made-to-order production to just three weeks. Initially, it was deemed impossible to obtain the specified part number, but at Bandai, we reorganized the design conditions (inner and outer diameters, load, and rotation speed) and proposed an alternative: the **"precision multi-row cylindrical roller bearing"** that meets the same specifications. By collaborating with the manufacturer (NSK), we confirmed compatibility through technical calculations and were able to meet the short lead time for prototyping. Bearings are critical components where the balance of dimensions, precision, and rigidity is essential. Even when making an "alternative proposal," we do not rely solely on catalog values; instead, we work together with the manufacturer's technical department to derive reliable solutions that our customers can adopt with confidence. *This kind of response is just a small part of what Bandai does on a daily basis. Please take a look at the value we can provide to our customers.*

• Other machine elements

On October 26, 2025 (Sunday) at 18:05, the NHK program "Ariyoshi's Money Discovery: Attack! Kaneo-kun" aired, and the comparison photos of fiber laser welding and TIG welding published on our company blog were featured! The theme of the broadcast was "Currently Evolving in Praise! The Secrets of Towel Money." At first glance, this topic seems unrelated to welding, but it turns out that Kenjiro Yamashita from the guest group Sandaime J Soul Brothers from EXILE TRIBE owns a fiber laser welding machine, and our blog's photos were used during the introduction segment. We are very honored that our blog's photos were featured in a nationally broadcast program hosted by Hiroyuki Ariyoshi, providing an opportunity for many people to learn about our company's efforts to support local manufacturing. *This is just a small part of the initiatives that Bandai engages in daily. Please take a look at the value we can offer to our customers.

• Other machine elements

At Bandai, we are promoting the digitalization of drawing management as a key theme of DX (Digital Transformation). In our interactions with customers and processing partners, we faced challenges where drawing information tended to remain in the minds of the responsible personnel, leading to delays in searching and sharing. To address this issue and aim for the "de-personalization" of information, we decided to implement the drawing management software "Zumeen." By utilizing the AI-powered similar drawing search function, we can quickly match with past projects and select the optimal processing destination. Through the creation of a system that leverages drawings not just as data but as "knowledge assets," we will shape a DX that is characteristic of Bandai, benefiting our customers, suppliers, and colleagues alike. *This response is just a small part of the initiatives that Bandai undertakes daily. Please take a look at the value we can provide to our customers.

• Other machine elements

At Bandai, we have started initiatives to leverage generative AI and ChatGPT in our operations. As the first step, we held an in-house seminar with Mr. Inoue, the representative of Westana Co., Ltd., which provides support for AI implementation, as the speaker. Through actual demonstrations, we shared "specific methods to enhance the quality of work," including creating meeting minutes, drafting emails, structuring documents, and analyzing drawings. Participants seemed convinced by the estimate that it could reduce work time by 20 hours per person per month at a cost of just a few thousand yen. Everyone, including not only sales and administrative staff but also warehouse personnel, participated, and many expressed positive thoughts like, "I think I can utilize this in my own work." Bandai will continue to flexibly use generative AI not just as a trend but as a "tool to assist work," aiming to improve our proposal capabilities and responsiveness to our clients and suppliers. *This kind of initiative is just a small part of what Bandai is doing every day. Please take a look at the value we can provide to our customers.

• Other machine elements

Reverse engineering is a technique that involves analyzing existing products using 3D scanners and various measuring instruments to create CAD data, which is then reproduced using high-precision machining equipment. This time, we will introduce a case study from "Hometown Processing Partner," which is evaluated as the best in Japan for palm-sized metal processing. Utilizing the latest measuring instruments such as 3D scanners and those from Mitutoyo, Keyence, and Nikon, along with the ultra-high-precision machining center called "YBM Vi40 Ver.3" from Yasuda Industries, you will see a site where cutting-edge equipment and skilled techniques merge through the process of precisely reproducing complex-shaped models. *Such efforts are just a small part of what Bandai does on a daily basis. Please take a look at the value we can offer to our customers.

• Other machine elements

Leave the quality improvement of parts, shortening of delivery times, discovery of new suppliers, and reduction of ordering management workload to our company "Bandai"! Our "Hometown Processing Network" consists of a cooperative system made up of 16 processing companies across Japan and one in China. We leverage the strengths of each company to achieve a wide range of processed parts procurement, from precision cutting at the micron level to labor-intensive fabricated parts. We respond flexibly to cutting, heat treatment, polishing, and fabrication, and can accommodate single items, small lots of various types, and mass-produced items. 【Problem-Solving Examples】 - 3D printer nozzles: I want to procure intricate pure copper cutting parts that other companies have refused! - Interior parts for railway vehicles: I want to obtain SUS304 fabricated parts with a beautiful finish in a short delivery time! - Repair parts for old European machines: No longer available due to the end of genuine support. I want to address this with reverse engineering! - Parts for agricultural machinery: Sudden business closure of the supplier. Over 700 press, brake, and welding parts are now unavailable! ★ What is the "Hometown Processing Network"? First, please take a look at our manga materials! We also have a collection of other problem-solving examples available! You can view them immediately from [PDF Download].

• Other machine elements

Bandai's proud 'Hometown Processing Network' consists of 16 unique processing companies from across the country and one processing company from China. From precision cutting processing at the micron level to labor-intensive custom can parts, the 17 processing companies with different areas of expertise provide optimal solutions to various concerns regarding processed products!! We accommodate a wide range of processing, from metals to resins! We handle single items, small lots of various types, and mass-produced items. We have prepared materials introducing the unique 17 companies, including case studies for problem-solving. Please take a look by downloading the catalog below!!

• Other machine elements

BanDai proudly presents the "Hometown Processing Network," composed of 16 unique processing companies from across the country and one processing company from China. From precision cutting processing at the micron level to labor-intensive custom canning parts, the 17 processing companies, each with their own areas of expertise, provide optimal solutions to various concerns related to processed products! 【Problem-Solving Examples】 - 3D Printer Nozzle: We need help with intricate pure copper cutting parts that other companies couldn't process! - Interior Parts for Railway Vehicles: We need SUS304 canning parts that require beautiful finishing, even with a short delivery time! - Repair Parts for Old European Machines: The manufacturer's genuine repair parts are no longer available due to support ending! Can we do something through reverse engineering? - Parts for Agricultural Machinery: Due to the sudden closure of our current processing company, we can't obtain over 700 pressing, braking, and welding parts! We are preparing materials that introduce the 17 unique companies, along with other problem-solving examples. Please take a look by downloading the catalog below!

• Other machine elements

The "Hometown Processing Network" that Bandai uniquely builds is a system that collaborates with distinctive processing companies across the country to match the optimal processing destination according to various conditions such as processing difficulty, delivery time, and cost, thereby solving our customers' concerns. Processing companies with strengths in various processes such as turning, milling, machining, wire cutting, pressing, laser cutting, welding, brazing, heat treatment, polishing, surface treatment, and 3D printing handle materials like SUS, aluminum, copper, brass, iron, and titanium. We construct the optimal processing flow according to the required dimensional tolerances, appearance specifications, quantities, and delivery times. Additionally, we flexibly respond to small quantities of diverse products and short delivery times, taking full responsibility for coordinating between processing processes and considering quality requirements. Our staff, who are well-versed in the technical characteristics of each process, select the most suitable processing companies according to specifications, providing valuable products that achieve the optimal balance of cost, delivery time, and quality. *This type of response is just a small part of the efforts that Bandai engages in daily. Please take a look at the value we can offer to our customers.

• Other machine elements

"I received a bearing that is different from the model I ordered...?" Such voices can be heard here and there in the bearing procurement field. Behind this, there are often **"manufacturer-specific symbols" that are not listed in the catalog.** For example, models like "6900ZZ1CM" or "6900ZZ1NXR*" may seem familiar at first glance, but symbols like "1" or "NXR" are not included in the catalog, which can confuse newcomers and customers. While veterans might brush it off as "Oh, that's a common one," it can be quite troublesome for those who are not used to it. This can lead to procurement mistakes or inquiries. That’s why we at Bandai make sure to thoroughly support you with such "confusing aspects." If you ever think, "This model looks unfamiliar..." please feel free to reach out to Bandai. We will provide clear explanations. *This kind of support is just a small part of what Bandai does every day. Please take a look at the value we can offer to our customers.*

• Metal bearings

A request for rod-shaped machined products from a customer. When we asked multiple lathe machining companies in the "Hometown Processing Network" for estimates, the responses were almost all "processing not possible." Upon confirming the reasons, many expressed that "the geometric tolerances are too strict." Indeed, while the specifications may be precise on paper, factors such as manufacturing difficulty, cost, and lead time significantly impact actual processing on the shop floor. This time, after confirming the customer's intentions, we adjusted the tolerance specifications, which ultimately allowed for smooth and realistic processing responses. The professionals in design and those in processing—bridging the gap between them, aligning intentions, and connecting to the site in the optimal way—this is one of the important roles of Bandai. *Such responses are just a small part of what Bandai does daily. Please take a look at the value we can provide to our customers.

• Processing Contract

The request from the customer was for high-precision machining of copper pins, reducing from φ6 to φ2, with M4 tapping included. At first glance, copper may seem like an "easy-to-machine material," but due to its softness and tendency to deform, along with strict tolerances, general lathes cannot handle it, making precision machining with NC lathes essential. However, for extremely small diameters like this, chucking on an NC lathe itself is difficult. A partner who previously processed φ4 SUS material also responded that they could not accommodate this condition. Nevertheless, we did not give up and found a machining company within the "Hometown Processing Network" that has specialized technology for small diameters, successfully leading to an order. Copper material × high precision × extremely small diameter—this project made me realize that a comprehensive knowledge of materials and a strong machining network are necessary to address all these factors. *This kind of response is just a small part of what Bandai does every day. Please take a look at the value we can provide to our customers.

• Processing Contract

We received a request from a customer to perform additional processing on a standard bevel gear from a certain gear manufacturer. The "material" section of the drawing listed the model of the standard product, and both our company and the processing contractor proceeded with the prototype based on that information. However, after delivering the prototype, we were pointed out by the quality control representative that "the hardness is different." In a hurry, we rechecked the drawing and found that there was a clear hardness specification exceeding the standard product's hardness range mentioned separately in the drawing. This was a moment of reflection for us as professionals, caused by the assumption that "there should be no problem since it's a standard product" and a lack of thorough verification. Fortunately, we were able to address it with heat treatment, but it reinforced the idea that drawings should not only be reviewed at the beginning but should be examined thoroughly until the end. We will ensure that we do not waste this experience and will be diligent in checking every detail moving forward. *This kind of response is just a small part of the initiatives that Bandai engages in daily. Please take a look at the value we can provide to our customers.

• Processing Contract

Heat treatment is a very important factor in the production of processed products. However, it is often difficult to distinguish between good and bad products based solely on their appearance, so it is essential to have a precise understanding of the process. If heat treatment is ordered without sufficient understanding, it could lead to significant problems later on. Our company has also had bitter experiences in the past where issues arose from heat treatment. Therefore, our company has conducted several internal study sessions, and our employees have a good understanding of the content and risks associated with heat treatment. Now, we will explain this in an easy-to-understand manner using the example of gears. *For detailed content of the blog, please refer to the related links. For more information, please download the PDF or feel free to contact us.*

• Processing Contract

What is lost when something becomes hard? That is toughness. Toughness is like the ductility that a material possesses. When hardness increases, this ductility is compromised. What happens when toughness is compromised? Let’s take diamond, the hardest mineral in the world, as an example. While diamonds are thought to be extremely hard, this is only effective against wear and scratches; they can easily break when subjected to impact, such as from a hammer. This indicates that while diamonds have very high surface hardness, their internal toughness is very low. *For more details, you can view the related links. For more information, please download the PDF or feel free to contact us.*

• Processing Contract

There are four main methods of heat treatment. The toughness I mentioned last time is imparted by performing "tempering." It is often said "quenching and tempering," and it is common to carry out these processes together to give steel surface hardness and toughness. Annealing and normalizing are not frequently used in the processing we mainly handle, but the photo of the handle at the beginning shows that annealing was performed to soften the iron and bend it. The root part of the bend has undergone annealing. Without annealing, it would be hard, and cracks would occur during bending, or it would break. *You can view the detailed content of the blog through the related links. For more information, please download the PDF or feel free to contact us.*

• Steel
• Processing Contract

"What is Chokou?" - This simple question prompted us to hold a study session on cemented carbide within Bandai. We shared information on material properties such as hardness and ductility, processing risks, the challenges of tool selection, and even examples of how we have addressed these issues in our company. What I felt again during this session is that correctly understanding the properties of materials directly reduces the risk of failure during processing and leads to better decisions regarding optimal manufacturing methods. For example, in a previous order for a cemented carbide product, we assumed that "adhesion is impossible" and manufactured everything in cemented carbide, only to later learn about an alternative called "cemented carbide thermal spraying." If we had known the options from the beginning, it might have led to reduced costs and processing risks - it was an eye-opening experience. Next time, I will provide a detailed introduction to the actual case of "cemented carbide thermal spraying." *Such initiatives are just a small part of what Bandai does every day. Please take a look at the value we can offer to our customers.

• alloy
• Processing Contract

The "thermal spraying" technology involves melting metals and ceramics and spraying them onto the surface of a substrate. Among these, carbide thermal spraying offers significant advantages in both cost and processing risk, as it allows for high wear resistance only in the necessary areas. Previously, there was a project where all components made of S45C + carbide were produced entirely from carbide, but in hindsight, I feel that a more rational proposal could have been made using carbide thermal spraying. Due to a lack of knowledge, I was unable to make that suggestion at the time, but I will strive to utilize this learning and present the optimal options next time. *Such responses are just a small part of the efforts that Bandai engages in daily. Please take a look at the value we can provide to our customers.

• Processing Contract

Hollow, complex shapes, and high strength... We are realizing designs that were difficult with conventional processing methods using 3D printer technology. At Bandai, we showcased our modeling samples at the Kansai Machine Element Technology Exhibition in 2019, receiving much feedback on the precision and beauty of the appearance. The 3D printer used for modeling is the Markforged METALX, which supports a variety of materials such as SUS, Inconel, and titanium, and is capable of high-density modeling with a 50μ pitch. Furthermore, through collaboration with the "Hometown Processing Network," we ensure strength with layered designs in partnership with specialized institutions. However, even if the machine is excellent, without proposals that understand and utilize it, we cannot secure orders. Next time, we will focus on how to "sell" this 3D printer and briefly introduce Bandai's sales style. *This kind of response is just a small part of what Bandai does every day. Please take a look at the value we can provide to our customers.

• 3D Printer

With the evolution of 3D printers, we have entered an era where parts with hollow structures and complex shapes, which were previously difficult to process, can now be produced with short lead times and low costs. Particularly in the case of prototypes and one-off items, where material waste can be significant, additive manufacturing has overwhelming advantages. On the other hand, for parts that require high-precision finishing and strict dimensional tolerances, traditional machining remains essential. In other words, it is not about "which is superior," but rather about discerning "which is optimal." At Bandai, we leverage our network that accommodates both 3D printing and machining to propose the best manufacturing method according to drawings and specifications. This "discerning ability" that connects technology and the field is the foundation of our sales style. *This type of response is just a small part of what Bandai engages in daily. Please take a look at the value we can offer to our customers.

• 3D Printer

"Do you have any experience in manufacturing processed products for vehicles?" One day, this question arrived from a train vehicle manufacturer, marking the beginning of a new challenge. While we had a track record of supplying off-the-shelf products (such as bearings), we had zero experience with processed products. Nevertheless, based on our past delivery records and evaluations of our finishing quality, I confidently replied, "We do not have a track record of supplying processed products for train vehicles, but we have never received complaints regarding our finishing quality." Amidst the tension, after providing thorough explanations, we secured inquiries for processed products for six vehicles due to interior renovations. Initially, the requests were mainly for relatively low-difficulty tasks such as laser and brake processing, but by accumulating achievements in delivery times, pricing, and quality, we eventually expanded into consultations for high-difficulty processing such as welding and assembly. This experience reflects how the technical capabilities of the "Hometown Processing Network" gradually shaped trust. *Please note that this type of response is just a small part of what Bandai does on a daily basis. We invite you to see the value we can provide to our customers.*

• Processing Contract

The company H that we are introducing this time is a sheet metal processing manufacturer known for its finishing quality within the "Hometown Processing Network." They have extensive delivery records for the food industry and railway vehicle manufacturers, and their burr-free finishes and beautiful weld beads are highly regarded. In fact, for this project, we received compliments from the customer stating, "The finish is very beautiful." However, due to the strict standards specific to railway vehicles, we unexpectedly received a notification for re-manufacturing. After applying TIG welding and anodizing to an aluminum product measuring 1 meter in length, spatter marks about 1mm in diameter emerged after processing. This phenomenon, which was not visible during processing and only appeared after anodizing, is a point that can only be recognized with an understanding of the usage environment. For products like railway vehicles that are handled by many people, even "sensitivity" becomes a factor in quality evaluation. This incident has reaffirmed the importance of "depth of understanding of application" alongside high technical skills. *Such responses are just a small part of the initiatives that Bandai engages in daily. Please take a look at the value we can provide to our customers.

• Welding Machine
• Processing Contract

As you read through the blog, many of you may have wondered, "What is the Hometown Processing Network?" This time, we will answer that question in full and address the simple query, "Why 'hometown'?" In fact, the charges of local processors differ significantly from those in urban areas. Supporting this price difference are capable processors who have major agricultural machinery manufacturers (K Company, Y Company, I Company, M Company) as their clients. They are a "professional group" forged under strict cost demands. Bandai connects directly with these excellent local processors and achieves a balance of high quality and low prices by matching optimal projects. Next time, we will introduce the background of how this network was created! *Such efforts are just a small part of what Bandai does on a daily basis. Please take a look at the value we can provide to our customers.

• Processing Contract

In order to find partners for mass production sheet metal processing, I spent days making dozens of cold calls to processing companies nationwide. Even so, I was struggling to find any promising leads and felt stuck. It was during this time that the executive of a prototype processing company in Shimane, who has been a great help to us, casually mentioned, "Shall I introduce you to a sheet metal company strong in mass production?" — that one remark was the beginning of everything. The person in charge at the introduced company came from the prototype department of an agricultural machinery manufacturer. They excel in the know-how of keeping costs down without compromising quality, and there are processing companies nearby that can handle welding, cutting, and surface treatment. A system was established that could handle 700 items in one go within a few minutes' drive, and at that moment, the "Hometown Processing Network" was born. The answer was not far away, but right next to trust. *This kind of support is just a small part of what Bandai does every day. Please take a look at the value we can provide to our customers.

• Processing Contract

Bandai is trusted by many customers as a "spring professional" with a proven track record in proposals for both coil springs and leaf springs. In particular, coil springs are precision components where the load varies finely based on wire diameter, coil diameter, winding direction, and number of turns, yet they are often scrutinized for cost as consumables. During the prototype stage, setup costs and delivery times with NC machines become challenges, but Bandai has established a system that allows for "hand-winding" by skilled artisans. We flexibly respond to special specifications that cannot be wound with NC machines and to short-term prototype requests, receiving production orders from spring manufacturers nationwide. Bandai's strength lies not only in "processing equipment" but also in leveraging "technology and people." If you are facing issues with coil springs, please feel free to consult us. *This type of response is just a small part of the efforts that Bandai engages in daily. Please take a look at the value we can provide to our customers.

• Spring

The "leaf spring," which is essential for agricultural machinery, may not stand out in appearance, but it is a high-performance component that requires durability, the ability to handle repeated loads, and a stable spring constant. At Bandai, we collaborate with specialized processing companies that have a track record of working with major agricultural machinery manufacturers, including companies K, Y, and I, in the production of leaf springs. Our manufacturing system is characterized by the ability to complete all processes in-house, from material selection to press mold production, blank processing, bending, and hardening. This integrated management system enables us to respond quickly from mold setup to mass production and to meet strict quality and delivery management standards. Additionally, for parts that require precision, we also perform wire cutting and complex shape press processing, allowing us to make optimal proposals tailored to product characteristics. If you are facing issues with leaf springs for agricultural machinery, please consult with Bandai, which has a proven track record, trustworthiness, and responsiveness. *This type of response is just a small part of the efforts that Bandai engages in daily. Please take a look at the value we can provide to our customers.*

• Spring

Have you ever looked at a drawing and thought, "Can't this be processed with machining?" In reality, if you make a mistake in selecting the processing machine, it can have a significant impact on cost and delivery time. In this blog, we will focus on the differences between 3-axis and 5-axis machining centers and discuss the "key points for determining processing methods." For example, consider a shape like a "round groove" on the outer circumference—at first glance, it may seem like machining could handle it, but the "φ" symbol on the drawing indicates dimensions based on lathe processing. It requires the ability to correctly assess the compatibility between the equipment and the shape. How to interpret the constraints of the site that are not visible in the design and the strengths and weaknesses of the machines—this is the first step toward making accurate processing proposals. Understanding the equipment and collaborating with the processing site helps prevent things from going "off the drawing." This content is something we would like not only young professionals but also those in design and technical departments to read! *Such responses are just a small part of the efforts that Bandai engages in daily. Please take a look at the value we can provide to our customers.

• Machining Center
• lathe
• Processing Contract

"I thought standard machining was 5-axis" — This remark from a new employee during on-the-job training prompted us to organize the differences between 3-axis and 5-axis machining machines and the criteria for their selection. 5-axis machining machines have a configuration that adds two axes of tilt and rotation to the three axes of the spindle, making them strong in multi-surface machining and complex curved surface machining with one chucking. On the other hand, there are many cases where 3-axis machining is sufficient depending on the machining content, and choosing 5-axis can lead to excessive investment in terms of both man-hours and costs. It is necessary to select equipment according to the differences in mechanisms such as simultaneous 5-axis and indexing 5-axis, as well as the workpiece shape and precision requirements. The "Hometown Processing Network" not only provides equipment specifications but also offers optimal matching proposals based on the machining content! *This kind of response is just a small part of the efforts that Bandai engages in daily. Please take a look at the value we can provide to our customers.

• Machining Center

"Impressed by the beautiful finish" "This quality at this price? Isn't it too cheap?" — The surprising feedback we received was for a canning product made from SUS304 thin plates (φ400) with spot welding. The drawing only specified spot welding, but we proposed a unique solution by first applying TIG welding as a distortion countermeasure and then adding spot welding as a supplement, achieving both strength and appearance. The value of this "extra effort" resonates with customers who are particular about quality. What are the reasons behind our processing know-how that can handle small lots and high difficulty, as well as our price competitiveness? This is a must-see case for those struggling with SUS canning or considering VA/VE design! *Such efforts are just a small part of what Bandai does every day. Please take a look at the value we can provide to our customers.

• Welding Machine
• Processing Contract

Is it too good to be true to be 'cheap, fast, and good'? — No, there are proper 'reasons' for it. We will delve into the 'secret of the low cost' of the 'Hometown Processing Network' that we introduced earlier. The key lies with H, a professional in welding and prototype processing. By maximizing their strengths in can manufacturing, they optimized costs through reduced setup times and improved processing efficiency. Identifying the 'strengths and weaknesses' that cannot be discerned from equipment lists or websites and ensuring optimal matching is the true essence of Bandai. We would like to present practical examples that those who want to maintain high quality while keeping costs down should definitely read. *Such efforts are just a small part of what Bandai does on a daily basis. Please take a look at the value we can provide to our customers.

• Processing Contract

Are you familiar with "5 Whys Analysis"? It is a method of identifying the "essential cause" rather than just the superficial cause by repeatedly asking "why?" five times in response to troubles or challenges. In the past, when I was in charge of a medical device manufacturer, I had a bitter experience where the lack of depth in this analysis led to ineffective recurrence prevention measures. Even answers that seem reasonable at first glance can turn out to be off the mark when explored from different angles. Nowadays, companies like Toyota are utilizing "5 Whys Analysis" not only in inventory and brand strategies but also in various situations, highlighting the demand for "thinking skills" beyond just technical fields. This time, I will focus on this "5 Whys Analysis" and share tips for applying it to recurrence prevention and business improvement! *For more details, you can view the blog through the related link. For more information, please feel free to download the PDF or contact us.

• Other semiconductors

"Can you bend this?" This is a common inquiry we receive regarding the processing of steel pipes and round bars, but there are many underlying conditions such as bend radius, total length, diameter, wall thickness, tolerances, lot numbers, and whether there are subsequent processes involved. At Bandai, we assess the optimal method from multiple processing techniques, including NC pipe benders, press brakes, single-action presses, and burner heating, and provide proposals accordingly. Even in cases where bending as per the drawing is not possible, we can respond with proposals that are **"not constrained by processing,"** such as welding and assembly. Additionally, assembly support involving drilling, end processing, and welding can be handled seamlessly through our **"Hometown Processing Network."** From prototypes to mass production and complex processes, please feel free to consult us! *Please note that this type of response is just a small part of what Bandai does on a daily basis. We invite you to see the value we can provide to our customers.*

• Processing Contract

Tough pitch copper—this material, which is particularly difficult to process even among pure copper, has seen an increase in prototype requests. The reason lies in the characteristics sought by customers. It is not the high thermal conductivity, but rather the high surface roughness requirements aimed at "light reflectivity." However, this copper is soft, ductile, and prone to copper powder adhering to cutting tools, making the processing conditions extremely strict. When a surface roughness of Ra0.1 is required, meticulous attention is needed to avoid processing deformation and ensure finishing quality. Our company can provide proposals and responses that take into account processing know-how and inspection processes. In fact, we handle it with extremely careful processes, such as separately processing dedicated samples to prevent inspection scratches. If you are struggling with fine processing of pure copper, please feel free to consult us. Our accumulated know-how and "Hometown Processing Network" will surely be of assistance to you. *This type of response is just a small part of the initiatives that Bandai engages in daily. Please take a look at the value we can offer to our customers.

• Other metal materials
• Processing Contract

We are the authorized sales agent for the manufacturer "Nissei," whose main product is gear motors. This time, we would like to introduce the **new product "UXIMO"** that was highly recommended by the Nissei representative, as it is very appealing! UXIMO is a high-rigidity, large-diameter hollow type reducer, a new model released in 2021 aimed at joint axis applications. It employs a planetary gear structure utilizing an eccentric oscillating crankshaft internally. This resolves the issues of low rigidity and shaft diameter limitations that have been challenges in conventional reducers, greatly expanding design flexibility. Moreover, the delivery time is as short as one month. While competing manufacturers take over six months, we have a significant advantage in terms of speed of implementation. The pricing is also comparable to competitors, and through our agency, it can be even more advantageous...!? If you are interested in robots, AGVs, positioners, or similar products, please feel free to contact us! *For more details, you can view the blog through the related link. For further information, please download the PDF or feel free to reach out to us.*

• gear

One of the particularly important keywords in the high-rigidity reducer "UXIMO" from Nissay, which we introduced last time, is "planetary gear." Immediately, a question came from within the company—specifically from our new employee, Mr. O. "What is a planetary gear?" Even if many have heard of mechanical terms, there are likely many who do not fully understand them. Therefore, this time, we have gently explained the purpose and characteristics of planetary gears. Why are planetary gears chosen in situations where a compact reduction mechanism is required? By grasping that "reason," the "structural edition" we will introduce next time will surely become clearer! *You can view the detailed content of the blog through the related links. For more information, please download the PDF or feel free to contact us.

• gear

In the previous installment, we introduced the theme "What is a Planetary Gear?" in an easy-to-understand manner, covering its purpose and features. This time, as a continuation, we will explain the structure of the planetary gear mechanism and how the reduction is achieved. The planetary gear mechanism consists of three gears: the sun gear, the planet gears, and the ring gear. By fixing one of these, we can create movements such as reduction, reversal, and acceleration. This time, we will focus on the representative "reduction structure with the ring gear fixed" and explain how each gear takes on power and what roles they play. Particularly noteworthy is the complex motion of the planet gears, which both "rotate" and "orbit." This movement is the key to enabling a compact and highly efficient reduction mechanism. By understanding the workings of planetary gears, your perspective on design and selection should change as well. Please be sure to read to the end! *For more detailed content, you can view it through the related links. For more information, please feel free to download the PDF or contact us.

• gear