CASTEM Product Lineup

【Manufacturing Method】 Digital Cast (Moldless Casting) 【Content】 This is an example used for vehicle development prototypes. In the process of new development, prototype verification is conducted before mass production! By using Digital Cast, not only can the initial costs associated with mold production be reduced, but quality concerns after mold creation can also be alleviated. 【What is Digital Cast?】 It is a manufacturing method that involves creating a resin model with a 3D printer and then producing metal products through a process similar to lost-wax precision casting using that model as a prototype. Castings can be handled in as little as one week, starting from just one piece. We offer proposals that provide benefits even in development and prototyping. We also accommodate custom orders from individual customers.

• joint
• Vehicle body parts
• nozzle

A contemporary artist created a glass art piece about 10 centimeters tall, which was 3D scanned and then a 3D printed model was made, enlarged to about five times its original size. The super complex shape, which was accidentally created like candy art, was reproduced through casting. Since the installation location was near water, a highly corrosion-resistant duplex stainless steel "SCS11" was used. The final product was buffed to create a mystical form that blends into the space. 【What is Digital Casting?】 When prototype parts are needed during design changes in development, when there is no stock of parts and urgent replacements are necessary, or when original jigs are needed for on-site work… In such cases, creating metal products through traditional casting methods, considering cost and delivery time, is not a viable option. Therefore, if needed, we offer mold-less casting with the catchphrase "Just make it from one piece!" With no need for molds and zero mold costs, we have a delivery record of as short as one week, and we can custom-make cast products starting from just one piece. Since the original form is a 3D printed item, we can accommodate complex shapes and hollow products that cannot be manufactured with molds. This service is utilized across numerous industries, including aerospace, shipping, automotive, precision machinery, industrial equipment, medical, and construction, catering to requests for metal parts from both corporations and individual customers.

• nozzle
• gear
• Mold Design

■Information on CT Scan Contract Services■ At Castem, we offer CT scan services using the Nikon MCT225. By conducting CT scans, it is possible to analyze internal defects, create 3D data, and measure internal dimensions. We can either hold your samples or allow you to perform the scan with our staff accompanying you. 【Equipment Overview】 Nikon Solutions MCT225 Imaging Method: Cone Beam CT X-ray Source: 225kV Microfocus Tube Maximum Tube Output: 225W Maximum Focus Diameter: 3μm Magnification: 1.6× to 150× Resolution: 1.33 to 125μm X-ray Detector: 16bit 4M Pixel Flat Panel Detector (FPD) Maximum Sample Weight: 50kg (maximum 5kg for dimensional evaluation) 【Penetration Capability】 There are limitations to penetration capability depending on the material. Resin: 170mm Aluminum: 70mm Titanium: 45mm Iron: 15mm Heavy Metals: Not possible to scan

• X-ray inspection equipment
• Contract Inspection
• X-ray Inspection Machine

A small-diameter hole shaped like a conical tube, with a tip diameter of φ0.3±0.05 and a length of 2.8 mm, has been achieved without machining. Additionally, there are no burrs inside, and it possesses the necessary strength to prevent chipping or breaking. When dealing with multiple pieces of this shape on a pin cushion through machining, the cost and time are significantly high. With our MIM technology, which allows for ultra-small precision molding, high-precision parts under 1 mm can be mass-produced without machining. 【What is MIM (Metal Injection Molding)?】 It is a method also known as metal powder injection molding. A mixture of metal fine powder and a binder is injected into a mold to create a shaped product, which is then subjected to debinding and high-temperature sintering in a vacuum furnace to produce metal products. We excel at obtaining ultra-small metal parts with high precision, complex shapes, and three-dimensional geometries that are difficult to machine. Our company is the only one in Japan that develops the raw materials used for MIM in-house. We will provide the best proposals for our customers using various technologies. Please feel free to contact us through our website for any inquiries regarding metal parts.

• nozzle
• nut
• Metal bearings

In the growing aerospace industry, we have numerous achievements in parts manufacturing. From over 70 types of steel in the top class of lost wax companies, we propose steel types and manufacturing methods that possess the necessary performance such as strength, heat resistance, and lightness! 【Castem's Lost Wax Developed Since Our Founding】 ■ Capable of mass production of complex shapes and three-dimensional curves at low cost ■ Pursue strength freely from two aspects: shape and material ■ Choose from over 70 types of special steel, stainless steel, copper alloys, aluminum alloys, etc. ■ Higher precision compared to other casting methods, reducing the number of processing steps 【Utilizing 3D Printed Models - Moldless Casting Digital Cast】 ■ Lead time for delivery is approximately 2 weeks (with the shortest record being 5 days) ■ A wide variety of steel types similar to lost wax ■ Moldless casting allows for production from one piece, ideal for prototypes ■ Capable of manufacturing small to medium and large parts ■ Rational prototype verification aimed at mass production casting 【Micro Mechanical Parts in Millions of Orders - MIM (Metal Injection Molding)】 ■ Small lot products under 3000 pieces are handled with low-cost dedicated molds for small lots ■ Wide-ranging support beyond standard MIM materials ■ All processes including precision machining, heat treatment, and plating are done in-house ■ Quick response to low cost, short delivery times, and design changes or corrections

• joint
• nozzle
• Screw

We need precision parts, but machining is costly... Multiple processes such as machining and welding are required, making it labor-intensive... We want to integrate multiple parts... Why not solve these concerns with 【Lost Wax Precision Casting】? 【Castem's Lost Wax Method】 "Lost Wax Precision Casting" specializes in complex three-dimensional shapes. Since our founding, we have continuously responded to customer inquiries for production, achieving over 35,000 types from simple to complex items. In response to various material requests, we have started handling over 70 types of steel, including stainless steel, copper, and aluminum. We also accommodate special steels and ultra-high-strength aluminum alloys (optimizing original casting for A7075). 【Cost Reduction Examples】 The thumbnail shows a cost reduction case achieved by changing the manufacturing method to lost wax casting, resulting in shape modification and integration. In conventional products, we manufactured through multiple processes including laser cutting, bending, machining, and welding, but we proposed integration using the lost wax method. This eliminates the hassle of managing processes between steps, reduces machining, and increases strength. By confirming the contact surface with the object and making that part convex, we reduced the dimensional management range, making quality control easier.

• joint
• Other food factory equipment and parts
• Other pharmaceutical-related factory equipment and parts

By switching the manufacturing of metal parts, which were traditionally produced through cutting processes, to the MIM (Metal Injection Molding) method, we have improved mass production capabilities and reduced lead times. Additionally, by reducing the weight of the material, we have achieved cost reductions. Material: SUS304L Size: 17×13×8 ーーーーーーーCastem's MIM Methodーーーーーーーー 【Features】 We excel at producing fine, complex three-dimensional shapes and have superior mechanical strength compared to conventional sintered products. The surface is smooth, and the dimensional accuracy of the metal molded products is high. 【Cost Performance】 Over 90% of production is carried out at our wholly-owned overseas factories. We manufacture molds in-house, and depending on the lot size and shape, we offer multiple patterns for mold production, enabling proposals for reducing initial mold costs. 【High-Quality System】 Both domestic and overseas factories are ISO 9001 certified, ensuring a robust management system for quality control. With domestic staff stationed on-site, we have extensive experience in educating local staff and managing factory operations over many years. 【Risk Management】 We have multiple base factories in Japan, Thailand, the Philippines, and Colombia, which reduces dependency on a single factory. This broadens our options for response in emergency situations and contributes to stable supply.

• joint
• Joints and fittings
• Screw

"Castings are not suitable for prototyping or small lot production." —Don't you think so? With Castem's "Digital Cast," you can produce casting parts from just one piece without molds by utilizing 3D printing. It offers high freedom of shape and can significantly reduce lead time, costs, and labor. 【Cost Reduction Example】 The part in the thumbnail is a CG manifold that was previously made by machining two parts and then welding them together. Additionally, due to the special material Inconel 625, it was sourced from overseas processing companies, making it a quite high-cost part in the past. However, by creating it as a single molded piece, we achieved a cost reduction of up to 80% and improved strength. "I want to verify shapes that cannot be achieved through machining" and "I want to test with the same material as the final product." We can solve these development challenges with our next-generation precision casting technology, Digital Cast. If you have 3D data, just leave the rest to us. We will provide precision cast products quickly!

• joint
• Piping and Piping Parts
• Piping Materials

★Comparison of the Differences and Advantages between Moldless Casting "Digital Cast" and Metal 3D Printing "Digital Sinter"! In recent years, manufacturing technology for metal parts has evolved dramatically. Moldless casting methods and metal 3D printing are particularly attracting attention in our technology category. 【Advantages of Metal 3D Printing: Digital Sinter】 ■ Overwhelming Speed Digital Sinter has a lead time of about one week (with the shortest record being two days), making it very advantageous for prototypes and small-scale production that require urgent responses. ■ Strong in Producing Complex Shapes and Small Parts The maximum size it can accommodate is 80mm on each side, but it excels in manufacturing small and complex-shaped parts. It is ideal for small components in medical devices and electronic devices, as well as for developing very small quantities of parts. ■ Specific Steel Type Compatibility The materials that can be used are limited to SINTER T (SUS316L) and SINTER D (pure copper, SUS316L, SUS630). This allows for the rapid provision of difficult-shaped items. *This is a guideline for the maximum size and steel types based on our metal 3D printing service. 【What is the Best Metal Forming for Your Needs?】 We provide the optimal manufacturing method for your project, along with VE proposals, based on the purpose of part procurement (QCD) and specification conditions.

• Machine elements
• Other electronic parts
• gear

★Comparison of the Differences and Advantages between Moldless Casting "Digital Cast" and Metal 3D Printing "Digital Sinter"! In recent years, manufacturing technologies for metal parts have evolved dramatically. Moldless casting methods and metal 3D printing are particularly attracting attention in our technology category. 【Advantages of Moldless Casting: Digital Cast】 ■Short Lead Time The lead time is only 2 weeks (with the shortest turnaround time being just 5 days). This helps shorten development periods and construction times. ■Wide Range of Metal Materials Available Digital Cast allows for the selection of over 70 types of materials (casting materials). It can accommodate a wide range of needs, including iron, stainless steel, aluminum, copper (including pure copper), special alloys (such as duralumin A7075 and Inconel), heat-resistant steel, tool steel, and high-speed steel. This provides designers with more flexible options. ■Manufacturing Capable from Small to Medium to Large Parts It can accommodate sizes up to 500 mm square. It is ideal for manufacturing small to medium and large parts. ■Rational Prototype Verification with an Eye on Mass Production Casting During mass production repeats, products are formed using the lost-wax precision casting method (our core technology), and it is a rational verification method to prototype and verify similar cast products before manufacturing, especially in terms of evaluating mechanical properties (such as strength confirmation).

• gear
• joint
• nozzle

【Cost Reduction Examples through Shape Modification and Integration】 In conventional products, manufacturing involved multiple processes such as laser cutting, bending, machining, and welding. However, we propose integration through the lost-wax method. Since it can be produced using a single method, it eliminates the hassle of managing between processes, reduces machining through integration, and increases strength. Additionally, by checking the contact surface with the object and making that part convex, we reduce the dimensional management range, making quality control easier. 【Castem's Lost-Wax Method】 As a lost-wax manufacturer, we have a cumulative track record of over 30,000 molds, excelling in both simple shapes and complex three-dimensional shapes such as hollow, undercut, and gear shapes. We can accommodate various materials, including iron-based, stainless steel, copper, aluminum, and some customer-specified materials.

• nut
• shaft
• Metal bearings

Traditionally, it was a machined product, but by switching to lost-wax manufacturing, we have improved mass production capabilities and reduced lead times. Additionally, by removing unnecessary material, we are achieving weight reduction and reducing material costs. Furthermore, we are also reducing processing surfaces to keep processing costs down while maintaining quality. Material: S45C (precision casting) Size: 90×70×31

• gear
• Metal bearings
• valve

Traditionally, it was a machined product, but by switching to the MIM (Metal Injection Molding) manufacturing method, mass production efficiency has improved and lead times have been reduced. Additionally, we have achieved cost reductions by reducing material weight by nearly 90g. 【Castem's MIM Method】 The "Metal Injection Molding" method is a processing technique that creates metal parts of the desired shape by mixing powdered metal with a binder and injecting it into a mold. With a density of over 95% and pores taking on round independent shapes, it exhibits excellent mechanical strength. The binder debinding process is performed at high speed to minimize the alteration and deformation of the metal powder, allowing for sintering under various conditions such as vacuum, reducing atmosphere, inert atmosphere, and high-pressure atmosphere, tailored to each metal's requirements. 【Features】 ■ Low-cost small lot production for quantities under 3,000 pieces using dedicated molds for small lots. ■ Wide compatibility beyond standard metal injection materials. ■ Integrated production for precision machining, heat treatment, plating, etc. ■ Quick response to low costs, short lead times, and design changes. ■ We have a system in place to develop the processes in-house. Please refer to the link below for our comprehensive company brochure.↓↓↓ https://saas.actibookone.com/content/detail?param=eyJjb250ZW50TnVtIjo0MTc4ODZ9&detailFlg=1&pNo=1

• gear
• Screw
• bolt

【Short Delivery Time Response】 Lead time can be as short as 2 weeks (with the shortest record being within 5 days). Generally, casting methods from mold production take 1 to several months, but this technology allows for a speedy process, helping to shorten development periods and construction times. 【Wide Range of Metal Materials Supported】 Digital casting allows for the selection of over 70 types of materials (casting materials). This includes common materials such as iron-based, stainless steel, aluminum, and copper (including pure copper), as well as special alloys (such as duralumin A7075 and Inconel), heat-resistant steel, tool steel, and high-speed steel. It provides designers with flexible options. 【Manufacturing Capable from Small to Medium to Large Parts】 With the ability to accommodate sizes up to 500 mm square, it is ideal for manufacturing small to medium and large parts. This enables the integrated manufacturing of large machine components and parts with complex or hollow shapes. 【Rational Prototype Verification Aimed at Mass Production Casting】 For mass production repeats, molds are created using the lost wax precision casting method (our core technology), and prototype verification is conducted with similar cast products before manufacturing, which is a rational method for evaluating mechanical properties (such as strength confirmation). *Please note that the feasibility of support and lead time estimates may vary depending on size, shape, specifications, quantity, etc.

• gear
• Machine elements
• Pharmaceutical related factory parts

We have been involved in the development of the idea "Negakaribouzu" by Mr. Nakama of Organizational Reform Co., Ltd. 【What is "Negakaribouzu"?】 A product created to prevent snagging of lures and tackle used in fishing. It is a groundbreaking mechanism that can remove the snagged fishing hook by applying force in the opposite direction of the line using a spring. 【Background of Development】 The structure uses a spring to apply force in the opposite direction, aiming to reduce environmental impact, costs, and angler stress. Mr. Nakama, who has no experience in manufacturing metal products, collaborated with Castem to advance development based on a prototype made from paper clay. 1. Shape modification to reduce weight while maintaining strength 2. Design optimization through fluid analysis considering the characteristics of casting 3. Design innovations to reduce post-processing such as hole machining Utilizing the casting method "Digital Cast" with a 3D printer, we achieved rapid prototyping without molds. 【From Individual Idea to Market】 An individual idea has been realized and progressed to market deployment through Digital Cast technology. Castem is not just a manufacturing contractor; we are committed to being "the best partner for our customers" and fully support the realization of ideas.

• Other machine elements
• Auto Parts
• Machine elements

Parts that are being machined and assembled may be able to reduce costs. By integrating shapes made up of multiple parts, we aim to achieve cost reduction. It is also possible to achieve both weight reduction and cost reduction by removing unnecessary joint areas that were required for assembly. 【Shape】 Complex shapes and those with three-dimensional curved surfaces can be mass-produced at low cost. 【Material】 Special steel, stainless steel, copper alloys, and aluminum alloys can be freely selected. Additionally, since material changes can use the same mold, it is easy to compare and evaluate during the prototype stage. 【Strength】 By integrating adjacent parts and auxiliary components into a single casting, we can eliminate weak points caused by assembly and welding. For movable parts, weight reduction can eliminate unnecessary inertial forces, increasing durability. Thus, strength can be freely pursued from both the shape and material perspectives. 【Casting Surface】 There are slight differences depending on the casting material, but small parts are around 12S and large parts around 20S. 【Precision】 Compared to other casting methods, the precision is high, allowing for a reduction in the number of machining processes. We will consider and propose appropriate shapes together, so please feel free to consult with us first.

• Metal bearings
• gear
• Casting Machine

We offer ultra-fine 3D modeling services using the world's highest precision 3D light sculpting technology. We provide a consistent system for the production of ultra-fine products from various industries, handling everything from initial meetings to product completion. We can also accommodate data storage or data acquisition by scanning sample items, as well as model creation. Furthermore, using dry plating (sputtering), we can coat the surface of the models with platinum to impart conductivity. The photo shows the battleship Yamato resting on a strand of hair.

• Other medical supplies and cosmetics manufacturing machines
• Microarrays and DNA chips
• Microtubes

Traditionally, it was a machined product, but by switching to lost-wax manufacturing, mass production efficiency has improved and lead times have been reduced. Additionally, we have achieved cost reduction by performing weight reduction, cutting over 100g of material. Furthermore, we are implementing quality measures such as addressing the formation of nests to ensure uniform wall thickness and countermeasures for burrs that create recesses.

• nut
• bolt
• Other machine elements

We want to reduce costs, try casting for products that were made by cutting, and shorten delivery times... Castem can solve these customer concerns! We respond to needs aimed at solving challenges through various manufacturing methods such as lost-wax precision casting, MIM (metal injection molding), and digital molding. From prototyping and development to single-item production and mass production, we handle the entire process in-house. By proposing VE (Value Engineering) and VA (Value Analysis) and selecting manufacturing methods, we can optimize costs, quality, and delivery times. Please feel free to contact us through our website.

• Other machine elements
• nut
• gear

This is a contract service specializing in prototyping micro lenses, diffractive optical elements, microneedles, MEMS, etc., using the world's highest precision 3D photolithography technology. The ultra-fine 3D printing service is a fabrication service utilizing the Nanoscribe system, a 3D photolithography device developed through collaborative research between Castem and Kyoto University of Advanced Science. By employing two-photon polymerization 3D printing technology and IP resin with sub-micron resolution, this system can produce shapes and precision that are impossible with conventional methods. The ultra-fine 3D printing service is actually utilized in research and industrial fields such as: ■ Mechatronics ■ Biotechnology ■ MEMS ■ Microelectronics ■ Optics ■ Medical ■ Materials Engineering

• lens
• Microscope
• Microarrays and DNA chips

Are you having trouble with your current inspections? An industrial CT scan might be the solution. The industrial CT scan service performs non-destructive defect detection, dimensional measurement, 3D modeling, and duplication without damaging the parts. It can be used in a wide range of fields, including checking for voids, cracks, and shrinkage inside resins, verifying wetting defects in electronic components, and inspecting welding joints for bonding defects and foreign matter contamination.

• Other appearance and image inspection equipment
• Contract Inspection
• Defect Inspection Equipment

We solve the initial costs of mold production and quality concerns after mold creation with digital casting! The photo shows a prototype for next-generation mobility vehicles. (Material: FCD) Would you like to eliminate quality concerns by verifying cast products with premium castings that do not require molds? 【What is Digital Casting?】 With the catchphrase "Just make it if you need it, starting from one piece," digital casting allows for mold-free casting. No mold required, zero mold costs, delivery records as short as one week, and custom-made cast products starting from just one piece. Since the original shape is 3D printed, we can accommodate complex shapes and hollow products that cannot be manufactured with molds. It is adopted in numerous industries such as aerospace, shipping, automotive, precision machinery, industrial equipment, medical, and construction, and we cater to requests for metal parts from both corporate and individual customers.

• Other machine elements
• Other Auto Parts
• Auto Parts

By reducing weight, we can achieve precision in robot control. In response to customer requests to prototype with topology shapes, we proposed a digital casting solution that does not require molds and can accommodate orders starting from just one piece. Industry: Industrial Robots Material: AC4C 【What is Digital Cast?】 When considering costs and delivery times, traditional casting methods that involve mold production for mass production are not viable options. Therefore, we propose mold-free digital casting with the catchphrase "Just make it from one piece if needed!" With no need for molds and zero mold costs, we have a delivery record of as short as one week, and we can custom-make cast products starting from just one piece. Since the original shape is 3D printed, we can accommodate complex shapes and hollow products that cannot be manufactured with molds. This method is adopted in numerous industries, including aerospace, shipping, automotive, precision machinery, industrial equipment, medical, and construction, and we cater to metal parts manufacturing requests from both corporate and individual customers.

• Other industrial robots
• Other machine elements
• Other electronic parts

Achieving short delivery times with the "Digital Cast" method, which uses models created by a 3D printer for casting! For large parts with a diameter of φ380, traditional mold production required 1 to 2 months, but with the Digital Cast method, cast products can be made without molds starting from just one piece, resulting in significant improvements in delivery times. Additionally, we can accommodate special materials such as heat-resistant steel and duralumin. *The product in the photo is SCS13. 【What is Digital Cast?】 When considering costs and delivery times, traditional casting methods that require mold production for mass production are not a viable option. Therefore, we propose mold-free casting with Digital Cast, with the catchphrase "Just make it if you need it, starting from one piece!" With no need for molds and zero mold costs, we have a track record of deliveries in as little as one week, and we can custom-make cast products starting from just one piece. Since the original shape is a 3D printed item, we can accommodate complex shapes and hollow products that cannot be manufactured with molds. This method is adopted in numerous industries, including aerospace, shipping, automotive, precision machinery, industrial equipment, medical, and construction, and we cater to requests for metal parts from both corporate and individual customers.

• Turbine
• Machine elements
• Generators and transmission motors

When you need prototype parts due to repeated design changes during development, when there is no stock of parts and you need a quick fix, or when you suddenly want original jigs for on-site work... Isn't there a limited and fixed mindset regarding the ordering sources and manufacturing methods when the required quantity is small? Considering costs and delivery times, options like mold production for repeat mass production or casting methods for metal products are not feasible, right? Therefore, if needed, we propose mold-less casting with our catchphrase "Just make one if you need it." With no need for molds and zero mold costs, we have a delivery record of as short as one week, and we can custom-make cast products starting from just one piece. Since the original form is a 3D printed item, we can accommodate complex shapes and hollow products that cannot be manufactured with molds. Our services are utilized across numerous industries, including aerospace, marine, automotive, precision instruments, industrial equipment, medical, and construction, catering to requests for metal parts from both corporations and individual customers.

• joint
• gear
• Spring

The "Metal Injection Molding" method is a processing technique that creates metal parts in the desired shape by mixing powdered metal with a binder and injecting it into a mold. It excels in producing fine thin-walled shapes with thicknesses ranging from 0.2 mm to 5 mm. It can accommodate millimeter orders and demonstrates properties equivalent to those of melted materials, such as torsion and bending. With a density of over 95%, the pores take on a round, independent shape, resulting in excellent mechanical strength. During the binder debinding process, high-speed debinding and sintering are performed to minimize the alteration and deformation of the metal powder. Various conditions such as vacuum, reducing atmosphere, inert atmosphere, and high-pressure atmosphere can be precisely controlled, allowing for sintering processes suitable for each type of metal. There are also examples in medical devices and aerospace components, and it can handle a wide range of production from batches of 10 to tens of thousands. 【Features】 ■ Small lot products of fewer than 3000 pieces are supported with low-cost dedicated molds. ■ In addition to standard metal injection materials, a wide range of materials is accommodated. ■ All processes, including precision machining, heat treatment, and plating, are integrated into a single production line. ■ Quick response to low-cost, short lead times, and design changes or corrections. ■ The entire process from mold creation to machining is managed in-house. *For more details, please refer to the related link page or feel free to contact us. Please refer to the link below for our comprehensive company brochure.↓↓↓ https://saas.actibookone.com/content/detail?param=eyJjb250ZW50TnVtIjo0MTc4ODZ9&detailFlg=1&pNo=1

• Processing Contract
• Contract manufacturing
• Other metal materials

We will introduce cost reduction through lost-wax casting. The cost of mold production is extremely low (about 1/5 compared to molds for plastic parts), and once a mold is made, it is semi-permanent. Design changes and material changes using the same mold are also easy! Additionally, due to processing convenience, components that were previously combined from several parts can now be integrated and manufactured at a low cost. This can lead to significant cost reductions. 【Features】 ■ Design changes and material changes using the same mold are easy ■ Free selection of special steel, stainless steel, copper alloys, and aluminum alloys ■ The cost per product is definitely lower compared to other manufacturing methods ■ Appropriate methods are adopted according to the product, achieving low prices ■ Integration of components that were previously combined into a single unit for cost-effective manufacturing *For more details, please refer to the related link page or feel free to contact us.

• Processing Contract
• Contract manufacturing

Castem's core technology is "lost wax precision casting," which excels in producing complex three-dimensional shapes. Since our founding, we have continued to respond to customer inquiries for manufacturing everything from simple shapes to challenging designs, with a track record of over 35,000 types of precision metal parts across various industrial sectors. In response to various demands for metal materials, we have started handling over 70 types of steel, including stainless steel, copper, and aluminum. We also accommodate special steels and unique ultra-duralumin aluminum materials (A7075 optimized for original casting), and we continue to challenge ourselves with new materials. 【Castem's Lost Wax】 - Capable of mass-producing complex shapes and three-dimensional curved surfaces at low cost. - There are slight differences depending on the casting material (approximately 12S for small parts, 20S for large parts). - Strength can be freely pursued from two aspects: shape and material. - Special steel, stainless steel, copper alloys, and aluminum alloys can be freely selected. - Compared to other casting methods, it offers high precision and reduces the number of processing steps. *For more details, please refer to the related link page or feel free to contact us.

• gear
• valve
• Valves and fittings

Introducing the MIM (Metal Injection Molding) type for small lot production! We can accommodate limited editions of fewer than 100 pieces with MIM! Mold costs start at 190,000 yen, making extremely small lots possible! For more details, please contact us. 【What is MIM (Metal Injection Molding)?】 Also known as metal powder injection molding, it is a method of injecting metal powder to create parts. It excels in producing extremely small metal components with high precision, complex shapes, and three-dimensional geometries that are difficult to machine. Our company is the only one in Japan that develops the raw materials used for MIM in-house.

• Other molds
• Prototype Services

Since its establishment, Castem Co., Ltd. has aimed to be a comprehensive manufacturer of metal parts, responding to all manufacturing needs. Our integrated production system, from mold manufacturing to machining, offers various advantages such as timely delivery and cost efficiency under strict quality control. Additionally, by partnering with excellent business partners for plating and assembly, we are now able to provide total support from raw materials to finished products. For more details, please contact us.

• gear
• Other machine elements

Metal injection molding is a processing method that creates metal parts of desired shapes by mixing powdered metal with a binder and injecting it into a mold. Recognizing the rapid trend towards high precision and complex shapes, Castem foresaw this shift early on and focused on the metal injection molding method (MIM), conducting independent research and development without relying on technology imports from the United States. In 1991, they obtained a patent in the U.S. and completed the manufacturing process using metal injection. Since then, they have continued to explore the possibilities of metal injection and have taken on the development of mechanical parts that can only be made through this method. Moving forward, they aim to further enhance their capabilities and respond to the demands for higher precision and complex shapes. For more details, please contact us.

• gear
• Other machine elements

Like conventional MIM, irregular holes, screws, and gears can of course be molded as well. We manufacture complex titanium parts with the feel of plastic molding. We can accommodate small lot sizes with small lot molds, even for fewer than 100 pieces. ● Chemical resistance ● Corrosion resistance ● Lightweight ● Excellent strength ● Decorative parts

• others

Shape: Complex shapes and three-dimensional curved surfaces can be mass-produced at low cost. Material: Special steel, stainless steel, copper alloys, and aluminum alloys can be freely selected. Additionally, since the same mold can be used for material changes, it is easy to compare and evaluate during the prototype stage. Strength: By integrating adjacent parts and auxiliary components into a single casting, weaknesses caused by assembly and welding can be eliminated. There are no directional weaknesses due to residual stress that occurs in cast products or parts with significant machining allowances. For movable parts, unnecessary inertial forces can be eliminated by reducing weight, which increases durability. Thus, strength can be freely pursued from the two aspects of shape and material. Casting Surface: There are slight differences depending on the casting material, but small parts are around 12S and large parts are around 20S. Accuracy: Compared to other casting methods, the accuracy is high, allowing for a reduction in the number of machining processes.

• others

From mold production using lost-wax precision casting to material delivery and prototyping, the shortest time frame is two weeks. We have achieved a balance of quality, cost, and speed, making it possible to complete everything from mold production to material delivery and prototyping in as little as two weeks. Please conveniently utilize the unique system provided by the Castem Group. ● Please place mass production orders after checking and evaluating the prototypes. Submit 5 to 10 prototypes for evaluation and consideration, and after discussing with us separately, please place your mass production order. ● For items requiring processing other than material delivery, additional time may be needed depending on the complexity. The basic timeline is until material delivery, and for items requiring additional processing or complexity, we will need extra time. Please consult us in advance. ● Estimated minimum time of two weeks. The shortest time frame is set at two weeks from the point we receive your order after your approval of the drawings.

• Other molds
• Prototype Services