プロステック List of Products and Services

"Do you have any of these concerns?" ◆ Decreased product quality due to poor insertion of insert nuts ◆ Lack of skilled workers, leading to increased time and cost for insert nut insertion ◆ No capacity to allocate workers for insertion tasks ◆ Decreased productivity due to rework from insertion failures ◆ Unable to find an insertion contractor that can handle small lots ◆ The hassle of dealing with multiple contractors from procurement to insertion of insert nuts With Prostech, you can solve all these problems at once! "Prostech's Insert Nut Insertion Service" One-stop: You can leave everything from procurement and inventory management of insert nuts to the insertion work to Prostech. "Features" High quality: Achieve high-quality insertion with the latest insertion machines, unique technology, and experienced staff. Increased productivity: Contribute to productivity improvement by reducing insertion failures and minimizing rework. Flexible response: We accommodate a variety of products and small lots, responding flexibly to customer needs. *For details, please download the PDF or contact us directly.

• nut

Do you have any of these concerns? ◆ Decreased product quality due to poor insertion of insert nuts ◆ Lack of skilled workers, leading to increased time and costs for inserting insert nuts ◆ Reduced productivity due to rework from poor insertion ◆ Difficulty finding an insertion contractor that can handle short lead times and small lots ◆ The hassle of dealing with multiple contractors for procurement and insertion of insert nuts With Prostech, we can solve all these issues at once! 【Prostech's Insert Nut Insertion Service】 One-stop: You can leave everything from procurement and inventory management of insert nuts to the insertion work to Prostech. 【Features】 High Quality: We achieve high-quality insertion through the latest insertion machines, unique technology, and experienced staff. Increased Productivity: By reducing poor insertions and minimizing rework, we contribute to improved productivity. Flexible Response: We accommodate a variety of products and small lots, responding flexibly to customer needs. *For more details, please download the PDF or contact us directly.

• nut

Insert nuts are used to securely attach metal screws to relatively soft materials such as plastic. You can view the "Insert Nut Q&A Collection," which answers various questions about insert nuts that you might be hesitant to ask, by downloading the PDF. 【Contents】 ■ What is the difference between cadmium-free and lead-free? ■ What is the difference between an outsert and an insert? ■ The quality of the press-fit is unstable. Are there any good working methods? ■ After pressing in, when I cover it with a cap and tighten the screw, the insert nut floats up. ■ Company Overview *For more details, please download the PDF or contact us.

• nut

In manufacturing sites, we often hear the following challenges regarding press-fitting operations: - Concerns about material degradation when the number of insert nut sets is high during simultaneous molding... - Press-fitting after molding requires manual labor... - The introduction of press-fitting machines incurs high initial costs... - Unstable production volumes make it difficult for press-fitting operators to plan their work... - There is a desire to reduce the number of employees... - Managing insert nuts and workpieces is challenging, etc... All these challenges related to press-fitting operations can be resolved by outsourcing! In manufacturing sites, the introduction of jigs and equipment, along with the increase and placement of operators, has always been a source of various problems. Our company plans and produces multi-axis simultaneous thermal press-fitting machines for insert nuts, allowing us to undertake projects regardless of size or workpiece shape. We also handle the purchase and management of insert nuts, eliminating the management costs for personnel and materials that customers previously incurred.

• nut

Our company handles stainless steel blind rivets, offering standard types such as open, shielded, wide, and flat, as well as special shapes for cases requiring extra strength or for use with soft materials. You can consider various combinations of stainless steel, aluminum, and iron. A specialized manufacturer produces the rivets, and since we have established an appearance inspection system, we can offer them at a lower price. Due to the nature of the product, it is not possible to completely avoid dents or bends during transportation. While it is possible to conduct a full inspection of all items, this would inevitably lead to higher costs. To ensure you can use our products with greater peace of mind, we have implemented a ranking system based on domestic inspection standards. You can choose according to your needs, allowing you to use our products with confidence.

• bolt

Recently, the number of resin products has been increasing rapidly. When producing resin products, various issues need to be considered, and we often receive challenges related to the heat press fitting of insert nuts. This time, we received a request to stabilize the quality of the insert nuts used in the pressing work of ready-made products, as there has been a lot of variation in quality resulting in defective products, and there is also a desire to improve safety. **Proposal** Since defective products lead to wasted time and costs for parts, we proposed an automatic six-point simultaneous pressing machine equipped with safety devices such as dual-hand switches and area sensors, to minimize the time humans are involved. **Result** The variation in force applied by humans during stage transportation has been eliminated, allowing for more time to prepare the next workpiece, which has enabled further reduction in working time. Previously, the production capacity was about 300 units, but with automation, it has increased to approximately 1,400 units. As a result, we achieved a cost benefit of about 770,000 yen per month due to reduced labor costs, and we were pleased to recover the initial investment in the machine in about five months. *For more details, please refer to the PDF or contact us.*

• Other machine elements

Recently, the number of resin products has been increasing rapidly. When producing resin products, various issues need to be considered, and we often receive challenges related to insert nut heat press fitting. This time, we received a request to stabilize quality because there was a significant variation in the quality of the press-fitting work for off-the-shelf insert nuts, resulting in about 3% defective products. **Proposal** Since defective products lead to wasted time and costs for parts, we proposed a semi-automatic press-fitting machine that can press four units simultaneously, reducing the time humans are involved as much as possible. **Result** The manual part involves setting the insert nut onto the workpiece and moving the stage to the press-fitting position. By automating the "descend → press-fit → ascend" of the heating element, we eliminated the possibility of inadvertently continuing to apply pressure after the press-fitting was completed. This reduced the burden on the resin workpiece and ensured uniform press-fitting times, resulting in no defective products, which was greatly appreciated. *For more details, please refer to the PDF or contact us.*

• Injection Molding Machine

Recently, the number of resin products has been steadily increasing. When producing resin products, various issues need to be considered, and we often receive challenges related to the heat insertion of insert nuts. This time, as we launched a new product, we addressed the customer's request to improve productivity due to the time-consuming process of inserting insert nuts. [Proposal] The conventional manual operation took 77 seconds per workpiece, so we proposed a manual simultaneous insertion machine that reduces the working time to about 35 seconds for four locations. [Result] Typically, two people were needed to handle mass production with the conventional soldering method, but with simultaneous insertion, one person can manage it. As a result, once the day's work is completed, the insertion machine can be easily moved to the edge of the desk or a shelf. Currently, we are producing 10,000 units per month, but due to the reduction in insertion work time per unit, we can now increase production to 16,500 units within the working hours. *For more details, please refer to the PDF or contact us.

• Other machine elements

Here is an example of an urgent response case we handled. We received an inquiry from a new customer asking, "Is it possible to urgently process 45 aluminum pipes with hard anodizing?" We received the products on Friday evening and started processing them at the factory by 6 PM. Thanks to the cooperation of many people, we were able to deliver them on Monday morning. Since they were to be used for high-end products, we felt a bit nervous about handling them, but the customer was very pleased with the beautiful finish. [Overview] - Hard anodizing of 45 aluminum pipes - Received the products on Friday evening and delivered them on Monday morning - The customer was very happy with the beautiful finish *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

Here is an example of an urgent response case we handled. Recently, we received an inquiry from a customer asking, "Is it possible to produce this urgently?" The request involved milling with SUS304 material and a quantity of about 40 pieces. Although the processing itself was simple, there was a tight timeline. We were contacted on Tuesday evening, and the customer hoped for delivery by Thursday. While we couldn't guarantee delivery the very next day, we were able to confirm delivery by the day after, which the customer accepted. Normally, we would ask about the product and the specific parts being used to propose any added value, but we also handle urgent requests like this one. Please feel free to consult us regarding materials, processing methods, or any other area. [Overview] ■ Inquiry asking, "Is it possible to produce this urgently?" ■ Milling with SUS304 material, quantity of about 40 pieces ■ Contacted on Tuesday evening, with a request for delivery by Thursday ■ Customer agreed to delivery by the day after, production completed by Friday morning, and delivery completed by early afternoon *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

We offer the "Multi-Axis Simultaneous Heat Pressing Machine for Insert Nuts," which was developed from the concerns of small factories. This machine allows for the simultaneous pressing of multiple insert nuts while minimizing strain on the wrist, enabling work to be done without variations in quality or speed due to differences among operators. Customers can choose from automatic, semi-automatic, or manual options based on their needs. It is widely used by factory managers, quality control personnel, and pressing operators, and has received great acclaim due to the quick return on investment for the initial cost of the pressing machine. 【We solve the following issues】 - The tilt or height of insert nuts is unstable after pressing. - If one of multiple insertions fails, the workpiece becomes wasted. - The work takes a long time and puts strain on the hands. *For more details, please refer to the materials or feel free to contact us. If you wish to experience the machine, please apply through the <Contact Us> section, and we will bring a demo unit.

• nut

We received an inquiry stating, "We would like to mass-produce with a finish similar to machining through press processing." Our press processing allows for all operations to be completed within a progressive die. Although there is a cost for the die, if you are producing tens of thousands of units each month, you will quickly recoup the investment. By manufacturing the progressive die with consideration for processing points, including the fracture surface, we have eliminated the need for any secondary processing, achieving significant cost reductions and stable quality. 【Processing Points】 ■ Fracture Surface: It is possible to create a full shear surface using a special technique, eliminating the fracture surface. ■ Burrs and Edges: It is possible to reduce them to nearly zero. ■ Chamfering: - Chamfering can be done within the die. - There is no need to worry about burrs from the material extruded due to press chamfering. *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Press Dies
• Other molds

The basic concept is "reducing the hassle of tool changes." Based on this, I will explain the fundamental ideas. An important item for recording the dimensions of the female thread section is "effective depth." The basic idea is that the male thread used should be up to M5×12. There is a specification for the R size of the outer corner of the workpiece, but if it has no particular significance, a right angle (as per the material) or a C face is recommended. 【Cost Reduction Points】 ■ Tapping ■ Corner R, C face - Right angle: Since it is as the material is, no processing is needed, making it cost-effective. - C face: Depending on the situation, it may be possible to instruct the material supplier to cut the C face, which can slightly reduce processing costs. - R face: Since processing takes time, when considered partially, the processing cost can be about 1.3 to 1.5 times higher compared to "right angle." *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Tap
• Other cutting tools

The depth of the cut H = end mill diameter φD × 5, with H being ideally within 5D. The higher the depth, the greater the curvature at the tip of the end mill, which affects the dimensions. As a guideline to avoid curvature, if we consider the end mill diameter as φD, the depth of the cut should be kept within 5D to complete the machining in one go. Exceeding 5D will require the cut to be done in two or more passes, which increases the time and consequently reflects on the cost. If it is absolutely necessary to make it smaller than R5 in design, it would be easier to select tools if you specify "R4 or less" instead of just "R4," which can help reduce costs. 【Cost Reduction Points】 ■ Cutting range and height H ■ R size ■ Fillet size *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• End Mills
• Other cutting tools

We received an inquiry stating, 'After anodizing, several mm to over a dozen mm lines have appeared, and I would like to remove them.' The occurrence of such lines after anodizing is not due to the surface treatment but rather 'the material characteristics of aluminum.' When producing aluminum materials, a concentration gradient of Mg components occurs near the center, which solidifies last, leading to uneven distribution. This unevenness causes the streaky variations. This document introduces suggestions for those troubled by issues such as 'wanting to eliminate band-like lines after anodizing.' If appearance and aesthetics are a priority, we can provide recommendations starting from material selection based on the areas of concern. [Overview] ■ Inquiry: 'After anodizing, several mm to over a dozen mm lines have appeared, and I would like to remove them.' ■ Conclusion: While they cannot be removed, it is possible to make them less noticeable. ■ Causes: - Not due to surface treatment, but due to material characteristics. - Anodizing has the property of highlighting scratches and unevenness. - The same phenomenon occurs with anodizing, colored anodizing, and hard anodizing. *For more details, please refer to the PDF document or feel free to contact us.

• Other surface treatment equipment
• Surface treatment contract service

Prostek Co., Ltd. offers "press and sheet metal processing." We handle secondary processing with high precision and reduction of secondary processing using progressive dies with advanced technology, as well as sheet metal processing. In addition to "full shearing and burr-free processing," we also take care of "sheet folding processing," vehicle hinges, food grater processing, riveting, and more. We can accommodate a wide range of shapes across various industry sectors. 【Services Offered】 ■ Full shearing and burr-free processing ■ Sheet folding processing ■ Progressive die riveting ■ Boxes, ducts, etc. ■ Punching, wire mesh, etc. ■ Others *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

Not only miscellaneous goods and stationery, but also a wide variety of materials such as building materials and electrical materials are used. We can accommodate iron, stainless steel, and more. Please feel free to consult with us.

• fastener

We offer a wide range of products including flat hinges, removable hinges, and hinges for construction machinery. For construction machinery, we also carry out casting processing in addition to press processing. Please feel free to consult with us.

• Vehicle body parts

The demand for stainless steel and aluminum insert nuts is also rapidly increasing. We can accommodate SUS304, which is generally avoided. Please feel free to consult us, especially in cases where SUS303 is not suitable, such as in water-related applications. From the stage of visualizing the meeting content, such as images and requests, please leave it to us. We will consider all types of materials, including brass, stainless steel, aluminum, and iron. We also accept inquiries about resin coating during simultaneous molding. We also manufacture heat press machines that can achieve simultaneous thermal press fitting of one to multiple pieces. We have demo machines available, so please feel free to contact us.

• Other electronic parts

No heat source is used when pressing in after work molding. The product is fixed by pushing down the expansion plate inside the insert nut with a dedicated tool, causing it to be secured by the product expanding within the pilot hole. Please leave everything to us from the stage of visualizing the meeting content, such as images and requests, into drawings. We will consider all types of materials, including brass, stainless steel, aluminum, and iron. Stainless steel can also be manufactured using SUS304. We also accept inquiries regarding resin coating during simultaneous molding.

• Other electronic parts

Please leave everything to us from the stage of visualizing the meeting content, such as images and hopes, into drawings. We will consider all types of materials, including brass, stainless steel, aluminum, and iron. We can also manufacture using SUS304 stainless steel. We also accept inquiries regarding resin coating during simultaneous molding. We also manufacture heat press machines that can achieve simultaneous heat press insertion of one to multiple pieces. We have demo machines available, so please feel free to contact us.

• Other electronic parts

Please leave everything to us from the stage of visualizing the meeting content, such as images and hopes, into drawings. We will consider all types of materials, including brass, stainless steel, aluminum, and iron. We can also manufacture using SUS304 stainless steel. We also accept inquiries regarding resin coating during simultaneous molding.

• Other electronic parts

Imports from China and Vietnam are also possible. Mass production in collaboration with local Japanese companies or local firms is feasible. In particular, the partner factory in Vietnam is managed by Japanese personnel on-site, conducting pressing, welding, surface treatment, and quality checks related to construction. If you are interested in cost reduction, changing production bases, or production in Southeast Asia, please feel free to consult with us. 【Available Processing】 ■ Pressing ■ Resin molding ■ Aluminum extrusion ■ Aluminum die casting ■ Various assembly and packaging operations ■ Other inquiries can be considered upon consultation *For more details, please refer to the PDF materials or feel free to contact us.

• Processing Contract

The "Multi-Axis Hot Pressing Machine" can perform hot pressing on multiple items at once, not just one, but also more than ten. The greater the number of simultaneous pressings, the larger the cost reduction effect, leading to a quicker return on investment, so we strongly recommend active adoption. By using this product, anyone can maintain the same quality in their work, eliminating the risk of failures that could result in defective products. The equipment specifications can be designed to the optimal configuration through discussions, including manual pressing with a lever or automatic pressing that completes with just a push of a button. 【Features】 ■ Multiple hot pressings can be performed at once ■ No issues even if the types of insert nuts or pressing heights are different ■ Easy operation ensures consistent quality regardless of who is working ■ Stable operation with a temperature controller ■ Space-saving operation with easy mobility ■ Capable of accommodating fixed, movable, and rotating stage specifications ■ Automatic pressing via switch operation is also possible (semi-automatic) ■ With a semi-automatic configuration, one operator can manage multiple machines ■ Future changes in work specifications or new products can utilize the same parts *For more details, please refer to the PDF materials or feel free to contact us.

• Other machine elements

Prostek Co., Ltd. specializes in "press special processing." Products that previously required secondary processing can now achieve significant cost reductions by adopting advanced technology with progressive dies. We offer "full shear processing with no burrs" for a clean finish, as well as "sheet folding processing" and "in-die riveting processing" that enhance the strength and precision of the shaft parts. Additionally, we can handle shapes for vehicle hinges and food grater designs. We can accommodate various shapes across different industry sectors. [Press Special Processing] ■ Full shear processing with no burrs ■ Sheet folding processing ■ In-die riveting processing ■ Others (including shapes for vehicle hinges and food graters) *For more details, please refer to the PDF document or feel free to contact us.

• Press Dies

Prostek is committed to the theme of "bringing smiles to everyone involved." We listen to conversations and interpret drawings, constantly considering "why this specification is necessary" and "what specifications and supply methods are suitable for mass production," and we take appropriate proposals and swift actions. We never settle for the status quo; we continuously think, advance, and improve, and we will continue to respond to diversifying needs. 【Business Activities】 ■ Sales of resin and metal processed products ■ Sales of screws and nuts ■ Assembly and subcontracting ■ Sales agency *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract