甲府精鋲 List of Products and Services

New Slim Model Now Available for Large Machines ● Custom designs available to match work shapes and usage methods ● Various parameters displayed digitally (feeder frequency, vibration intensity, drum speed, etc.) ● Compatible with large workpieces such as automotive interior plastic rivets ● Slimmer body compared to conventional large machines (306mm ⇒ 246mm) ● Equipped with a thin rotating drum suitable for easily jammed workpieces ● Standard feature: "Vibration Stabilization Function (Constant Amplitude)"

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We have been producing in China for some time, but considering the rising labor costs and country risks, we are thinking about transferring production to a base in Southeast Asia. Additionally, when we transfer production, we would like to source the components used as close to the production base as possible. Do you have any concerns regarding this? Our company has a manufacturing base for pressed parts in Thailand, so we can assist with your inquiries regarding localization. Not only within Thailand, but we can also handle exports to Southeast Asian countries such as Indonesia, the Philippines, and Vietnam from our base in Thailand. [Background of the Order / Concerns] - We have been producing in China for some time, but considering the rising labor costs and country risks, we are thinking about transferring production to a base in Southeast Asia. - When we transfer production, we would like to source the components used as close to the production base as possible. *For more details, please refer to the PDF document or feel free to contact us.

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• Contract manufacturing

"While we would like to procure from Japanese companies that have expanded into the local market, suitable Japanese companies for the relevant parts have not entered the market. Additionally, due to the trend of a weaker yen, we would also like to consider procurement from Japan." Do you have any such concerns? Our company also engages in exports from Japan to overseas (by sea and air), and we can accommodate your requests by exporting directly from us or through trading companies. Furthermore, we have manufacturing bases in Thailand, so you can also choose to export from Thailand. Please feel free to contact us when you need assistance. [Background and Concerns of the Order] - We are procuring parts from local and overseas companies at our overseas bases, but we are struggling with quality issues, differences in business practices, and communication. - While we would like to procure from Japanese companies that have expanded into the local market, suitable Japanese companies for the relevant parts have not entered the market. - Additionally, due to the trend of a weaker yen, we would also like to consider procurement from Japan. *For more details, please refer to the PDF document or feel free to contact us.*

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Are you experiencing issues such as delays in the supply of parts from overseas due to the COVID-19 pandemic and looking for domestic alternatives? Or delays in maritime transport causing parts from abroad not to arrive as scheduled? Our company manufactures forged parts domestically (in Yamanashi Prefecture), so we are available for consultations. We can engage in direct transactions as well as transactions through trading companies. Please feel free to contact us when you need assistance. [Background of the Order / Concerns] ■ Due to the impact of the COVID-19 pandemic, the supply of parts from overseas has been delayed, and we are looking for domestic alternatives. ■ Parts from overseas are not arriving as scheduled due to delays in maritime transport. ■ With the yen depreciating, we would like to switch to procurement from domestic manufacturers. *For more details, please refer to the PDF document or feel free to contact us.

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• Contract manufacturing

Our company manufactures forged parts domestically, and we can engage in direct transactions as well as transactions through trading companies. We also support exports from Japan to overseas (by sea and air). Since we have a manufacturing base in Thailand, you can also choose to export from Thailand. If you have concerns such as "I want to bring production back to Japan as a countermeasure against the weak yen" or "I am looking for suppliers in Asia while maintaining current costs," please feel free to consult with us. 【Features】 ■ We can consult with you as we manufacture forged parts domestically. ■ Transactions through trading companies are also possible. ■ We support exports from Japan to overseas (by sea and air). ■ We can accommodate direct exports from our company, exports through trading companies, or as per your requests. ■ Since we have a manufacturing base in Thailand, exporting from Thailand is also an option. *For more details, please refer to the PDF document or feel free to contact us.

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• bolt

This is a large machine (NJN-D300 series) that retains the functions of the medium-sized machine (NJN-D200 series) while being capable of handling larger workpieces. ● Custom machines are produced according to workpiece shape and usage. ● Parameter adjustments are possible with a digital display-equipped base. ● It can accommodate materials other than iron, such as plastic rivets for automotive interiors. If you provide us with samples, we will consider the feasibility of supply, so please feel free to contact us.

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This document introduces case studies of precision micro parts and automotive parts, making it a must-read for those struggling with parts procurement and selection. It includes examples such as "collars" for the motorcycle industry, "special precision screws" for the electronics industry, and "pins" for the housing equipment industry. Additionally, it features "tips" on forging processing. It contains know-how and technology for manufacturing precision micro parts, so please take a moment to read it. 【Contents (excerpt)】 ■ Tips on forging processing ■ Collars (for the motorcycle industry / switch-related) ■ Special precision screws (for the electronics industry / HDD and fan motor-related) ■ Pins (for the housing equipment industry / lock-related) ■ Rings (for the electronics industry / wiring-related) ■ Electrodes (for the electronics industry / surge protection-related) ■ Shafts (for the automotive industry / door-related parts) ■ Pins (for the automotive industry / seat-related parts) *For more details, please refer to the PDF document or feel free to contact us.

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We would like to introduce a case of manufacturing precision micro parts and automotive components, specifically "shafts," for the automotive industry. We received a request for the delivery of finished products that underwent forging, heat treatment, and plating. A notable feature is the countersink for riveting on one end face. Using a 2-die 3-blow forging machine, we can produce 1,000,000 pieces per month. [Case Study] ■ Product Name: Shaft ■ For the automotive industry ■ Door surrounding components *For more details, please refer to the PDF document or feel free to contact us.

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• Processing Contract

We would like to introduce a case of manufacturing precision micro parts and automotive components, specifically "pins," for the automotive industry. We received a request for the delivery of finished products after forging, heat treatment, and plating. A notable feature is the countersink for riveting on one end face. Using a parts former, we can produce 1,000,000 pieces per month. 【Case Study】 ■Product Name: Pin ■Target Industry: Automotive ■Components for Seat Surround *For more details, please refer to the PDF document or feel free to contact us.

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• Processing Contract

We would like to introduce a case study of the production of precision micro parts and automotive components, specifically "shafts," for the automotive industry. We received a request for the delivery of finished products that underwent plating after forging. The key features and innovations include improved corrosion resistance through zinc-iron alloy plating. Using a parts former, we can achieve a production capacity of 1,000,000 units per month. 【Case Study】 ■Product Name: Shaft ■Target Industry: Automotive ■Components for Door Surrounds *For more details, please refer to the PDF document or feel free to contact us.

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• Processing Contract

We would like to introduce a case study of the production of precision micro parts and automotive components, specifically "shafts," for the automotive industry. We received a request to convert from other manufacturing methods to forging (from full cutting to forging + cutting). The features and innovations include secondary processing through cutting. Using a 2-die 3-blow forging machine and secondary processing cutting machines, we are capable of producing 800,000 units per month. 【Case Study】 ■ Product Name: Shaft ■ Target Industry: Automotive ■ Door Surround Components *For more details, please refer to the PDF document or feel free to contact us.

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• Processing Contract

We would like to introduce a case of manufacturing precision micro parts and automotive components, specifically "shafts," for the automotive industry. After forging processing, we received a request for the delivery of the finished product after heat treatment. The features and innovations include tapered shaping on both sides and countersinks for riveting on both end faces. Using a parts former, we can produce 800,000 pieces per month. 【Case Study】 ■Product Name: Shaft ■For the Automotive Industry ■Door Surround Components *For more details, please refer to the PDF document or feel free to contact us.

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• Processing Contract

We would like to introduce a case of manufacturing precision micro parts and automotive components, specifically "electrodes," for the electrical industry. We received a request for the delivery of finished products that underwent heat treatment after forging. The features and innovations include a thin flat shape and a protrusion in the center of the end face. Using a 2-die 3-blow forging machine, we can produce 800,000 units per month. 【Case Study】 ■ Product Name: Electrode ■ For the Electrical Industry ■ Surge Protection Related *For more details, please refer to the PDF document or feel free to contact us.

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• Processing Contract

We would like to introduce a case of producing precision micro parts and automotive parts product "ring" for the electrical industry. We received a request to convert from other processing methods to forging (from full cutting to forging). The features and innovations include a hollow shape (through). Using a 2-die 3-blow forging machine, we can produce 600,000 pieces per month. 【Case Study】 ■Product Name: Ring ■Target Industry: Electrical Industry ■Related to Wiring *For more details, please refer to the PDF document or feel free to contact us.

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• Processing Contract

We would like to introduce a case of producing precision micro-fine parts and automotive parts, specifically "pins," for the housing equipment industry. After molding, we received a request for delivery of the finished product, which underwent heat treatment and plating. The features and innovations include a flat knurl created through rolling processing. Using a 2-die 3-blow forging machine and our own flat die rolling machine, we are capable of producing 1,200,000 pieces per month. 【Case Study】 ■ Product Name: Pin ■ Target Industry: Housing Equipment ■ Related to Locks *For more details, please refer to the PDF document or feel free to contact us.

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We would like to introduce a case of manufacturing "special precision screws," which are precision micro-components and automotive parts for the electronics industry. We received a request for screw components with a special shape that emphasizes accuracy. Features and innovations include the roundness of the flange diameter, flatness of the flange back, fine thread, and hexalobular recess. We are capable of producing 2,000,000 pieces per month. 【Case Study】 ■Product Name: Special Precision Screw ■Targeted at the Electronics Industry ■Related to HDD and fan motors *For more details, please refer to the PDF document or feel free to contact us.

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• Processing Contract

We would like to introduce a case study of producing precision micro parts and automotive components called "collars" for the motorcycle industry. We received an order for brass (bronze) forging processing. The features and innovations include a hollow shape (through). Using a 2-die 3-blow forging machine, we can produce 600,000 pieces per month. 【Case Study】 ■Product Name: Collar ■Target Industry: Motorcycle ■Related to Switches *For more details, please refer to the PDF document or feel free to contact us.

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Forging is a processing method that uses molds to plastically deform metal materials and shape them into a predetermined form. It is known as a processing method used in the manufacturing of common screw parts standardized by JIS and other organizations. Additionally, forging performed at room temperature is called cold forging, while processing materials that have been heated is referred to as hot forging. Our company conducts "cold forging." We also introduce the flow of the forging parts manufacturing process. *For more details, please refer to the PDF materials or feel free to contact us.*

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• Processing Contract

This document is a collection of case studies on special forged components produced by Kofu Seiyo. It includes various examples such as "special precision screws" for the electronics industry, "contacts" for the motorcycle industry, and "hollow rivets" for the housing equipment industry. Additionally, it features an introduction to the manufacturing equipment, machining equipment, and measuring instruments owned by our company. We encourage you to read it. [Contents] ■ Manufacturing Equipment Introduction ■ Main Machining Equipment Introduction ■ Main Measuring Instruments Introduction ■ List of Production Case Studies *For more details, please refer to the PDF document or feel free to contact us.

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• bolt

To meet the diverse needs of our customers, we have introduced various types of forging machines, primarily focusing on 2-die 3-blow systems, as well as 1-die 2-blow (double header) machines and multi-stage processing machines known as part formers. We can accommodate a wide range of products, from automotive-related parts with a material diameter of 8 mm to electronic components with a material diameter of around 2 mm, as well as miniature screws and other fine parts with a diameter of less than 1 mm. In addition to product inspections using common measuring instruments such as tool microscopes, we also conduct thorough inspections and sorting of critical management parts using inspection sorting machines, depending on the specifications of the components. 【Equipment Owned】 <Manufacturing Equipment> ■ Forging machine (part former) ■ Forging machine (header) ■ Rolling machine ■ Tapping machine ■ CNC lathe machine *For more details, please refer to the PDF document or feel free to contact us.

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• Processing Contract
• Contract manufacturing

We would like to introduce a case study of the production of special forged parts "contacts (switch components)" for the motorcycle industry. The request involved forging processing of stainless steel, with a unique shape for the flange, using a 2-die 3-blow forging machine. At our company, after shaping through processing, we apply post-processing such as heat treatment and plating as specified in the drawings, and we primarily supply the finished products. 【Production Case Study】 ■ Request Details: Forging processing of stainless steel ■ Features and Innovations: Unique shape for the flange ■ Forging Machine Production Capacity: 1,000,000 pieces/month ■ Processing Material: Austenitic stainless steel wire, material diameter (mm) φ2.4 ■ Machines Used: 2-die 3-blow forging machine ■ Product Size (mm): Maximum width 7.0, minimum diameter φ1.6, total length 9.6 *For more details, please refer to the PDF document or feel free to contact us.

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We would like to introduce a case study of the production of special forged parts for the electronics industry, specifically "Special Precision Screws (HDD)." The order involved the machining of screws with a special shape, emphasizing precision, featuring roundness of the flange diameter, flatness of the underside of the flange, hexalobular recesses, and fine-thread screws. In addition to forming through forging, our company also accommodates secondary processing such as rolling and cutting on forged blanks. 【Production Case】 ■ Order Details: Machining of screws with a special shape, focusing on precision ■ Features and Innovations: Roundness of the flange diameter, flatness of the underside of the flange, hexalobular recesses, fine-thread screws ■ Forging Machine Production Capacity: 1,500,000 pieces/month ■ Processing Material: Martensitic stainless steel wire, material diameter (mm) φ2.1 ■ Machines Used: 2-die 3-blow forging machine, in-house flat die rolling machine ■ Product Size (mm): Maximum diameter φ5.1, screw part M1.6 P0.2, total length 3.5 *For more details, please refer to the PDF document or feel free to contact us.

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We would like to introduce a case study of the production of special forged parts for the electrical industry, specifically "electrodes (surge protection components)." The features include a center pin within the recessed top surface and a lattice-shaped recess at the end face of the shaft, with a forging machine production capacity of 1,000,000 pieces per month. Our company is expanding the range of sizes that can be processed through the introduction of machinery, and we are not only engaged in the manufacturing of precision micro parts but also in the production of components related to the automotive and housing industries. ■ Request details: Forging processing of pure copper ■ Features and innovations: Center pin within the recessed top surface, lattice-shaped recess at the end face of the shaft ■ Forging machine production capacity: 1,000,000 pieces/month ■ Processing material: Pure copper wire, material diameter (mm) φ2.2 ■ Machinery used: 2-die 3-blow forging machine ■ Product size (mm): Maximum diameter φ6.0, minimum diameter φ1.8, total length 3.4 *For more details, please refer to the PDF document or feel free to contact us.

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We would like to introduce a case study of a special forged part for the electronics industry: "Shaft (Optical Disc Drive Unit)." The request was for the manufacturing of irregularly shaped parts through forging, with all components being irregularly shaped, featuring a flange (H-cut), mid-section (H-cut), and shaft (D-cut), processed from round wire. At our company, after shaping through processing, we apply post-processing such as heat treatment and plating as specified in the drawings, with the principle of supplying the finished product. 【Product Case】 ■ Request: Manufacturing of irregularly shaped parts through forging ■ Features and innovations: All components are irregularly shaped, with a flange (H-cut), mid-section (H-cut), and shaft (D-cut), processed from round wire ■ Forging machine production capacity: 1,500,000 pieces/month ■ Processing material: Cold forged carbon steel wire (SWCH) Material diameter (mm) φ1.8 ■ Machines used: 2-die 3-blow forging machine ■ Product size (mm): Maximum diameter φ4.5, minimum diameter φ1.8, total length 3.8 *For more details, please refer to the PDF document or feel free to contact us.

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We would like to introduce a case study of the production of special forged parts for the electronics industry, specifically "shafts (hinges for mobile phones)." The features include a flange (H-cut) and a square rivet, with improved surface hardness achieved through gas nitriding for wear resistance. The production capacity of our forging machines is 2,000,000 pieces per month. In addition to forming through forging, our company also offers secondary processing through rolling and cutting of forged blanks. 【Case Study】 ■ Request Details: Transition from other processing methods to forging (MIM to forging) ■ Features and Innovations: Flange (H-cut) and square rivet, with improved surface hardness through gas nitriding for wear resistance ■ Forging Machine Production Capacity: 2,000,000 pieces per month ■ Processing Material: Cold forged carbon steel wire (SWCH) Material diameter (mm) φ1.2 ■ Machines Used: 1 die 2 blow forging machine (double header) ■ Product Size (mm): Maximum diameter φ2.7, minimum width 1.0, total length 22.0 *For more details, please refer to the PDF document or feel free to contact us.

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We would like to introduce a case study of the production of special forged parts "Shafts (Car Audio)" for the electrical industry. The order involved converting from other processing methods to forging (cutting ⇒ forging + rolling), using a 2-die 2-blow forging machine and our own flat die rolling machine. Our company has expanded the range of sizes that can be processed through the introduction of machinery, and we manufacture not only precision micro parts but also components related to automobiles and housing equipment. 【Product Case】 ■ Order Details: Conversion from other processing methods to forging (cutting ⇒ forging + rolling) ■ Features and Innovations: Grooving through rolling ■ Forging Machine Production Capacity: 2,000,000 pieces/month ■ Processing Material: Cold forged carbon steel wire (SWCH) Material diameter (mm) φ2.9 ■ Machines Used: 2-die 2-blow forging machine, our own flat die rolling machine ■ Product Size (mm): Maximum diameter φ6.0, minimum diameter φ1.8, total length 10.2 *For more details, please refer to the PDF document or feel free to contact us.

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We would like to introduce a case study of a special forged component for the residential equipment industry: "Hollow Rivets (Door and Sash Parts)." The request involved forging processing of aluminum, using a 2-die 3-blow forging machine. The production capacity of the forging machine is 1,000,000 pieces per month. At our company, after forming through processing, we apply post-processing such as heat treatment and plating as specified in the drawings, and we primarily supply the finished products. 【Product Case Study】 ■ Request Details: Forging processing of aluminum ■ Features and Innovations: Hollow shape (bag hole) ■ Forging Machine Production Capacity: 1,000,000 pieces per month ■ Processing Material: Aluminum wire, Material diameter (mm) φ5.7 ■ Machine Used: 2-die 3-blow forging machine ■ Product Size (mm): Maximum diameter φ9.6, Hole diameter φ3.7, Total length 9.8 *For more details, please refer to the PDF document or feel free to contact us.

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We would like to introduce a case study of a special forged part for the automotive industry, "shaft (door surrounding parts)." The order details include the delivery of a finished product that has undergone forging, heat treatment, and plating. The features include forming both sides with a tapered shape and having a recess for riveting on the end face. In addition to forming through forging, our company also supports secondary processing such as rolling and cutting on forged blanks. 【Case Study】 ■ Order details: Delivery of a finished product that has undergone forging, heat treatment, and plating ■ Features and innovations: Tapered shaping on both sides, recess for riveting on the end face ■ Production capacity of forging machines: 800,000 pieces/month ■ Processing material: Cold forged alloy steel wire (SCM) Material diameter (mm) φ6.9 ■ Machines used: Parts former ■ Product size (mm): Maximum diameter φ14.0, minimum diameter φ5.0, total length 41.7 *For more details, please refer to the PDF document or feel free to contact us.

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We would like to introduce a case study of the production of special forged parts for the automotive industry, specifically "shafts (door-related parts)." We have made innovations in secondary processing through cutting, and our forging machine production capacity is 800,000 pieces per month. Our company is expanding the range of sizes that can be processed through the introduction of machinery, and we are involved in the manufacturing of not only precision micro parts but also parts related to automotive and housing equipment. 【Case Study】 ■ Request: Transition from other processing methods to forging (full cutting ⇒ forging + cutting) ■ Features and Innovations: Secondary processing through cutting ■ Forging machine production capacity: 800,000 pieces/month ■ Processing material: Cold forged carbon steel wire (SWCH) Material diameter (mm) φ8.0 ■ Machines used: 2-die 3-blow forging machine, secondary processing cutting machine ■ Product size (mm): Maximum diameter φ16.0, minimum diameter φ4.0, total length 21.3 *For more details, please refer to the PDF document or feel free to contact us.

• Other Auto Parts
• Other machine elements

We would like to introduce a case study of the production of special forged parts for the automotive industry, specifically "collars (door surrounding parts)." The request involved converting from another manufacturing method to forging (cutting to forging), with a notable feature being the hollow shape (through hole). At our company, we perform post-processing such as heat treatment and plating as indicated in the drawings after forming through machining, and we primarily supply the finished products. 【Production Case Study】 ■ Request Details: Conversion from another manufacturing method to forging (cutting to forging) ■ Features and Innovations: Hollow shape (through hole) ■ Forging Machine Production Capacity: 600,000 pieces/month ■ Processing Material: Cold forged carbon steel wire (SWCH) Material diameter (mm) φ4.0 ■ Machines Used: 2-die 3-blow forging machine ■ Product Size (mm): Maximum diameter φ8.0, hole diameter φ4.0, total length 3.3 *For more details, please refer to the PDF document or feel free to contact us.

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• Other machine elements

At Kofu Seibyo, we manufacture special forged parts for a wide variety of industries, including the automotive industry. We propose high value-added products with advanced forging technology and a diverse range of forging machines, including parts formers. Additionally, we can transfer mold production from Japan to Thailand quickly and smoothly. 【Features of Special Forged Parts Manufacturing】 ■ Advanced forging technology ■ A diverse range of forging machines, including parts formers ■ Applicable material diameters: φ0.4 to φ8.0 ■ Applicable materials: SWCH, SCM, SUS, copper, brass, aluminum, etc. *For more details, please refer to the PDF document or feel free to contact us.

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• Contract manufacturing
• Mold Design

Introducing Kofu Seibyo's "Miniature Screws." Currently, miniature screws, which are extremely small screws measuring less than M1.0, are gaining attention in various fields such as medical, precision instruments, and hobbies. Our company sells our own standard products in small quantities (100 pieces per bag). Please choose according to your needs from our extensive lineup. [Contents] ■ S0.5 Series ■ S0.6 Series ■ S0.8 Series ■ M1.0 Series ■ Tools for Miniature Screws (e.g., #00 Cross Bits) *For more details, please feel free to contact us.

• nut

The "Smart Feeder NJN-D200 Series" is our original parts feeder that can be used as a component alignment supply device for automatic screw tightening machines and automatic inspection machines. We will consider the alignment section and specifications according to your work, so please feel free to consult us if you have any issues with your supply device. We have various supply achievements including washers with embedded screws, pan screws, nuts, and collars. If you send us your work, we will consider the feasibility of supply and provide suggestions. 【Features】 ■ Simple structure with integrated controller ■ Escape type (with work cutting) also available ■ Quiet operation ■ Compatible with head screws M2 to M4 (standard specification) ■ High supply capacity (standard specification: up to 180 pcs/min) ■ Compact design while ensuring work accommodation (approximately 2,500 pan head screws M3×5 can be accommodated) *For more details, please refer to the catalog or feel free to contact us.

• Parts feeder

Our company manufactures supply machines based on our own development, tailored to your work needs. The 'NJN-D052 series' features a compact body the size of a palm and a simple structure, which results in fewer malfunctions. If you are having trouble with supply machines, please feel free to consult us. 【Features】 ■ Fewer malfunctions due to simple structure ■ Quiet operation ■ Escape specifications available ■ Compatible with 0 (plus) pan head screws M1.2 to M2.0 (standard specification) ■ Compact design while ensuring workpiece capacity (can hold 4,000 M1.4×3 screws) *In addition to the above products, we have numerous supply achievements through setting changes and adjustments by our company. Please feel free to consult us.

• Parts feeder

Kofu Seibyo is a company engaged in the manufacturing and sales of forged parts, sales of machined parts, and the manufacturing and sales of its original parts feeder, the "Screwina Series." The metal parts produced through our core forging process are all custom-made based on customer specifications, supplying forged parts to a wide variety of industries, including the electronics and automotive sectors. We welcome inquiries such as, "Can this part be made by forging?" and "How much would it cost to forge this part?" We propose high-value-added products with advanced forging technology and a diverse range of forging machines. 【Features】 ■ Supply of parts for a wide variety of industries ■ Advanced forging technology ■ Diverse range of forging machines ■ Proposal of high-value-added products ■ In-house production of forging molds (in-house design and manufacturing) *Please feel free to contact us.

• bolt

We have a factory located in Amata City Chonburi Industrial Estate, about an hour's drive from Bangkok, the capital of Thailand. We supply special forged parts primarily to automotive-related companies and electronics-related companies that are expanding in Thailand and the Southeast Asian region. 【Certifications Obtained】 IATF 16949, ISO 14001, Sony Green Partner

• Other Auto Parts
• bolt
• fastener