パーツ精工 List of Products and Services

At Parts Seiko Co., Ltd., we provide a wide range of products to users in various fields, based on the principles of "variety, small lots, and short delivery times." "Responding swiftly to changes in the times and customer needs." This is the selling point of Parts Seiko. ◆ Five Strengths of Parts Seiko ◆ 1) Flexible production system from a variety of products to mass production and small lots. 2) Reliable manufacturing through a production network with seven domestic and international bases. 3) Achieving high precision and high quality with over 800 machines and technical expertise. 4) Owning our own plating factory, we offer optimal surface treatment by skilled platers. 5) The same inspection equipment across all bases ensures the highest quality anywhere in Japan or overseas. *For more details, please refer to the related link page or feel free to contact us. You can also download our catalog, so please take a look.

• Other machine elements
• Processing Contract
• Surface treatment contract service

"Do you have concerns like wanting to place an order for both round and square parts, from large to small, all with one company?" At Parts Seiko Co., Ltd., we offer "cutting and machining services using NC (multi-tasking) lathes." With our advanced equipment and specialized programs, we achieve short delivery times. We perform high-precision machining through additional processing with NC lathes and multi-tasking machines. 【Features】 ■ Machining capacity: φ3 to φ250 (up to L1500), Hex = H13 to H44 ■ Shafts, holders, collars, spacers, pulleys, rings, flanges, rollers, etc. ■ Compatible materials: SS, SC, SCM, SUS, aluminum alloys, copper alloys, plastics, etc. *For more details, please refer to the related link page or feel free to contact us.

• Surface treatment contract service
• Processing Contract

At Parts Seiko Co., Ltd., we offer "machining services using machining centers." We achieve high-precision machining with well-equipped facilities and skilled technicians. With approximately 800 machine tools across 3 domestic locations and 3 overseas locations, we provide the desired items, in the desired locations, in the desired quantities, with guaranteed quality. 【Features】 ■ Maximum tool movement (main size): X800 × Y500 × Z400 ■ Maximum machining capacity (in-house): X1000 × Y500 × Z400 ■ Base, plate, bracket, block, holder, etc. ■ Compatible materials: SS, SC, SCM, SUS, aluminum alloys, copper alloys, plastics, etc. *For more details, please refer to the related link page or feel free to contact us.

• Surface treatment contract service
• Processing Contract

At Parts Seiko Co., Ltd., we provide comprehensive manufacturing services, including polishing processing. - We are looking for a manufacturer that can handle both cutting and polishing processes. - We are seeking a manufacturer capable of polishing high-precision parts. - We would like to have a single source for multi-process polishing, such as flat grinding and inner/outer diameter grinding. - We would like to accommodate a variety of small lot sizes. We have a cylindrical grinding machine at our Kagoshima No. 4 factory, allowing us to provide consistent production for parts that require precision. *For more details, please refer to the PDF document or feel free to contact us.*

• Processing Contract

At Parts Seiko Co., Ltd., the Surface Treatment Division offers a "Delivery Surface Treatment Service." The Delivery Surface Treatment Service is a quick surface treatment service using an "order form" and "courier delivery." We also accept large orders, so please feel free to consult with us. 【Services Offered】 ■ Blackening Treatment ■ Electroless Nickel Plating 【Features】 ■ Processing is done the day after receipt, and products are shipped on the same day. ■ With our "Quick Service," processing is done in the afternoon of the receipt day, and products are shipped on the same day. ■ Products are shipped via Yamato Transport's courier service, with payment on delivery in the morning. *For more details, please refer to the related link page or feel free to contact us. Contact Information: Parts Seiko Co., Ltd. Surface Treatment Division Contact Person: Toyoda Phone: 048-962-3517 Address: 1544-14 Masumori, Koshigaya City, Saitama Prefecture

• Surface treatment contract service
• Processing Contract

Are you facing any concerns like, 'I want to create a mold to reduce the unit cost of parts, but where should I consult?' At Parts Seiko Co., Ltd., we handle 'molded processing parts using die casting and lost wax.' We have established a consistent production system from creating material drawings to material procurement, processing, and surface treatment, utilizing precise molds for forming (die casting, lost wax, resin) and parts processing through methods like pressing. [Features] ■ Die casting materials: Aluminum-based, Zinc-based ■ Lost wax materials: Iron-based, Stainless steel materials ■ Molded products: Cold forging, Hot forging, Castings *For more details, please refer to the related link page or feel free to contact us.

• Surface treatment contract service
• Processing Contract
• Other machine elements

At Parts Seiko Co., Ltd., we handle "special processed parts." We support various processes including gear machining, insert machining, welding, and feed screw machining. We collaborate with 100 partner factories to propose the necessary processing methods for our customers. 【Features】 ■ Supports various processes including gear machining, insert machining, welding, and feed screw machining ■ Collaborates with 100 partner factories 【Processing Methods (Excerpt)】 ■ Various surface treatments ■ Various heat treatments ■ Various polishing ■ Gear machining ■ Feed screw machining *For more details, please refer to the related link page or feel free to contact us.

• Surface treatment contract service
• Processing Contract
• Other machine elements

Are you having concerns like, 'I want to purchase screws and standard products. Is it possible to buy them in bulk?' At Parts Seiko Co., Ltd., we offer 'sales of standard and commercially available products.' We have a lineup that includes screws and bolts, shaft holders, clamp levers, set collars, ball plungers, anti-back units, and more. 【Lineup】 ■ Screws and bolts ■ Shaft holders ■ Clamp levers ■ Set collars ■ Ball plungers ■ Anti-back units, etc. *For more details, please check the related link page or feel free to contact us.

• Surface treatment contract service
• Processing Contract
• Other machine elements

At Parts Seiko Co., Ltd., we offer "assembly services for various types of assembly parts and press-fitting services." With the technology and knowledge we have cultivated, we cater to assembly parts. We possess skills in assembly, rubber bonding (polishing), and press-fitting. Additionally, we also handle commercially available products such as screws. 【Features】 ■Assembly Technology: Assembly, rubber bonding (polishing), press-fitting *For more details, please refer to the related link page or feel free to contact us.

• Surface treatment contract service
• Processing Contract
• Contract manufacturing

At Parts Seiko Co., Ltd., we conduct "Quality Assurance (Quality Control and In-Process Inspection)." Starting from the Quality Assurance Department, we have established a quality assurance system at each factory, enabling direct shipments from the factories. We also inspect and guarantee products manufactured at overseas and partner factories at the Quality Assurance Department and each shipping base factory. Regarding measuring equipment, we have introduced the same inspection measuring instruments both in Japan and overseas (2D measuring machines, 3D measuring machines). By using the same measuring instruments and methods, we ensure there are no measurement discrepancies between Japan and overseas. Furthermore, at our factory in China, we have implemented material analysis equipment to manage the quality of raw materials, striving to maintain quality. 【Equipment Owned (Excerpt)】 ■ Keyence Image Measuring Machine ■ Mitutoyo CNC 3D Measuring Machine (Bridge Type) ■ Mitutoyo 2D Measuring Machine ■ FARO Gage 3D Measuring Machine (Arm Type) ■ RoHS Analysis Equipment (China Factory Only) ■ Material Analysis Equipment (China Factory Only) *For more details, please refer to the related link page or feel free to contact us.

• Surface treatment contract service
• Processing Contract
• others

Introducing the "Headquarters Factory Equipment" of Parts Seiko Co., Ltd., which boasts an overwhelming capacity of 800 machine tools, both domestically and internationally. Our factory located in Misato City, Saitama Prefecture, is equipped with 23 NC lathes (including multi-tasking machines), 20 machining centers, and 18 general-purpose machines. We have a suitable supply system tailored to meet our customers' needs. Additionally, we provide examples of over 20 processed parts, which can be confirmed in the PDF materials. 【Equipment Owned (Excerpt)】 ■ NC Lathes: 6 units ■ Multi-tasking Machines: 17 units ■ Machining Centers: 20 units ■ General-purpose Machines: 18 units ■ Grinding Machines: 2 units We also have a virtual factory tour video available, so please take a look. *For more details, please refer to the PDF materials or feel free to contact us. Address: 1-81 Shinwa, Misato City, Saitama Prefecture

• lathe
• Machining Center
• Grinding Machine

Introducing the "Shirakawa Factory Equipment" of Parts Seiko Co., Ltd., which boasts an overwhelming capacity of 800 machine tools, both domestic and overseas. At our factory located in Fukushima Prefecture, we have 99 NC lathes (including multi-tasking machines), 26 machining centers, and 11 rolling machines, among others. We have a suitable supply system tailored to meet our customers' needs. Additionally, we offer over 20 examples of processed parts, which can be confirmed through our PDF materials. 【Equipment Owned (Excerpt)】 ■ NC Lathes: 48 units ■ Multi-tasking Machines: 51 units ■ Machining Centers: 26 units ■ General-purpose Equipment: 17 units ■ Rolling Machines: 11 units ■ Wire Electrical Discharge Machines: 1 unit ■ High-frequency Hardening Equipment: 1 unit We also have a virtual factory tour video available, so please take a look. *For more details, please refer to the PDF materials or feel free to contact us. Address: 188 Hiekaeshi, Odagura, Nishigo Village, Nishishirakawa District, Fukushima Prefecture

• lathe
• Machining Center
• 3D measuring device

We would like to introduce the "Kagoshima Factory Equipment" of Parts Seiko Co., Ltd., which boasts an overwhelming capacity of 800 machine tools, both domestic and overseas. At our factory located in Kagoshima Prefecture, we have 49 NC lathes (including multi-tasking machines), 42 machining centers, and 5 two-dimensional measuring machines, among others. We have a suitable supply system tailored to meet our customers' needs. Additionally, we offer over 20 examples of processed parts, which can be confirmed through our PDF materials. 【Equipment Owned (Excerpt)】 ■ NC Lathes: 15 units ■ Multi-tasking Machines: 34 units ■ Machining Centers: 42 units ■ General-purpose Equipment: 10 units ■ Grinding Machines: 11 units ■ Wire EDM Machines: 2 units We also have a virtual factory tour video available, so please take a look. *For more details, please refer to the PDF materials or feel free to contact us. Address: 1792 Takahara, Miyazato-cho, Satsumasendai City, Kagoshima Prefecture

• lathe
• Machining Center
• Grinding Machine

Introducing the "Surface Treatment Division Equipment" of Parts Seiko Co., Ltd., which boasts an overwhelming capacity of 800 machine tools, both domestically and internationally. At our factory located in Koshigaya City, Saitama Prefecture, we have facilities including an electroless nickel plating tank, black dyeing tanks, electrolytic polishing tanks, and fiber laser processing machines. We have a suitable supply system tailored to meet our customers' needs. Additionally, we provide over 20 examples of processed parts, which can be confirmed through our PDF materials. 【Equipment Owned (Excerpt)】 ■ Electroless Nickel Plating Tank: 1 tank ・ Size: 530×1400×400 ■ Black Dyeing Tank (for steel) ・ Size: 500×1200×400: 2 tanks ・ Size: 600×1200×600: 1 tank ■ Black Dyeing Tank (for copper alloys) ・ Size: 450×350×400: 1 tank ■ Black Dyeing Tank (for ZDC) ・ Size: 600×350×350: 1 tank ■ Electrolytic Polishing Tank: 1 tank ・ Size: 1200×500×700 *For more details, please refer to the PDF materials or feel free to contact us. Address: 1544-14 Masumori, Koshigaya City, Saitama Prefecture

• Wafer processing/polishing equipment
• Coating thickness gauge
• Special Processing Machinery

We would like to introduce the "Shenzhen Factory Equipment" of Parts Seiko Co., Ltd., which boasts an overwhelming capacity of 800 machine tools, both domestically and internationally. At our factory in China, we have 69 NC lathes (including multi-tasking machines), 61 machining centers, and 2 material analysis devices, providing a suitable supply system tailored to our customers' needs. Additionally, we offer over 20 examples of processed parts, which can be confirmed through our PDF materials. 【Equipment Owned (Excerpt)】 ■ NC Lathes: 44 units ■ Multi-tasking Machines: 25 units ■ Machining Centers: 61 units ■ General Equipment: 20 units ■ Grinding Machines: 5 units We have also uploaded a virtual factory tour video, so please take a look. *For more details, please refer to the PDF materials or feel free to contact us.

• lathe
• Machining Center
• Grinding Machine

We would like to introduce the "Philippines Factory (PSP) Equipment" of Parts Seiko Co., Ltd., which boasts an overwhelming capacity of 800 machine tools combined from both domestic and overseas. At our factory in the Philippines, we have 148 NC lathes (including multi-tasking machines), 66 machining centers, and 11 grinding machines, among others. We have a suitable supply system tailored to meet our customers' needs. Additionally, we offer over 20 examples of processed parts, which can be confirmed in the PDF materials. 【Equipment Owned (Excerpt)】 ■ NC Lathes: 109 units ■ Multi-tasking Machines: 39 units ■ Machining Centers: 66 units ■ General-purpose Equipment: 99 units ■ Grinding Machines: 11 units We also have a virtual factory tour video available, so please take a look. *For more details, please refer to the PDF materials or feel free to contact us. Philippine Corporation: Parts Seiko Philippines, Inc. (PSP)

• lathe
• Machining Center
• Grinding Machine

In March 2025, the Vietnam factory (Parts Seiko Vietnam Co., Ltd.) commenced operations as the third overseas base. The Vietnam factory will be the third overseas factory following the factories in China and the Philippines. Similar to other locations, the processing equipment includes main models of Japanese machinery, as well as MC/BNC/general-purpose machines, three-dimensional measuring machines, two-dimensional measuring machines, and optical microscopes. We are focusing on creating a system that enables production with Japanese quality, regardless of whether it is angular or round products.

• lathe
• Machining Center
• Grinding Machine

At Parts Seiko Co., Ltd., we perform cutting and machining using NC (multi-tasking) lathes. Our machining capabilities (main sizes) range from Φ3 to Φ300 (up to L1000), with hexagonal sizes from H4 to H44. The materials we handle include SS, SC, SCM, SUS, aluminum alloys, copper alloys, and plastics, among others. We achieve high-precision machining through additional processing with NC lathes and multi-tasking machines. Please feel free to contact us when you need our services. 【Processing Examples】 ■ A5056 ■ φ20-L30 ■ 500 pieces ■ Optical equipment *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Other optical parts
• Other machine elements

At Parts Seiko Co., Ltd., we perform cutting and machining using NC (multi-tasking) lathes. With an overwhelming capacity of 800 machine tools, our well-equipped facilities and special programs enable us to achieve short delivery times. We carry out high-precision machining through additional processing with NC lathes and multi-tasking machines. The materials we handle include SS, SC, SCM, SUS, aluminum alloys, copper alloys, and resins, among others. We have over 20 examples of processed parts available. 【Processing Examples】 ■A5056 ■φ20-L100 ■100 pieces ■Optical equipment *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Other optical parts
• Other machine elements

Do you have any concerns such as wanting to place an order for both round and square parts, from large to small, all with one company? At Parts Seiko Co., Ltd., we perform cutting and machining using NC (multi-tasking) lathes. With our advanced equipment and specialized programs, we achieve short delivery times. We provide high-precision machining through additional processing with NC lathes and multi-tasking machines. Additionally, we offer over 20 examples of processed parts, which you can check from the PDF download below. [Processing Examples] ■A5056 ■φ60-20 ■200 pieces ■Optical equipment *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Other optical parts
• Other machine elements

At Parts Seiko Co., Ltd., we perform cutting and machining processes using NC (composite) lathes. We accommodate materials such as SS, SC, SCM, SUS, aluminum alloys, copper alloys, and resins. Our machining capabilities (main sizes) range from Φ3 to Φ300 (up to L1000), with hexagonal sizes from H4 to H44. With our well-equipped facilities and specialized programs, we have achieved short delivery times. Please feel free to contact us when you need our services. 【Processing Examples】 ■ A5056 ■ φ100-L60 ■ 100 pieces ■ Optical equipment *For more details, please refer to the PDF materials or feel free to contact us.

• Processing Contract
• Other optical parts
• Other machine elements

At Parts Seiko Co., Ltd., we perform cutting and machining processes using NC (multi-tasking) lathes. With an overwhelming capacity of 800 machine tools and advanced equipment, along with special programming, we achieve short delivery times. We conduct high-precision machining through additional processing with NC lathes and multi-tasking machines. Our machining capabilities (main sizes) range from Φ3 to Φ300 (up to L1000), and hexagonal sizes from H4 to H44. We accommodate materials such as SS, SC, SCM, SUS, aluminum alloys, copper alloys, and resins. [Processing Examples] ■ A5056 ■ φ80-L500 ■ 50 pieces ■ Optical equipment *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Other optical parts
• Other machine elements

Do you have any concerns such as wanting to place an order for both round and square parts, from large to small, all with one company? At Parts Seiko Co., Ltd., we perform cutting and machining processes using NC (multi-tasking) lathes. With our overwhelming capacity of 800 machine tools and specialized programs, we achieve short delivery times. We have over 20 examples of processed parts available for your review. You can check them out by downloading the PDF below. [Processing Examples] ■A5056 ■φ200-L20 ■100 pieces ■Printing equipment *For more details, please refer to the PDF materials or feel free to contact us.

• Processing Contract
• Other machine elements

At Parts Seiko Co., Ltd., we perform cutting and machining processes using NC (multi-tasking) lathes. With an overwhelming capacity of 800 machine tools and advanced equipment, along with special programming, we achieve short delivery times. We ensure high-precision machining through additional processing with NC lathes and multi-tasking machines. If you have concerns such as "I want to place orders for both round and square parts, from large to small, all with one company," please feel free to contact us. 【Processing Examples】 ■A5056 ■φ60-L40 ■100 pieces ■Medical devices *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Other machine elements

At Parts Seiko Co., Ltd., we perform cutting and machining processes using NC (multi-tasking) lathes. We accommodate materials such as SS, SC, SCM, SUS, aluminum alloys, copper alloys, and resins. Our machining capabilities for major sizes range from Φ3 to Φ300 (up to L1000), and hexagonal sizes from H4 to H44. With an overwhelming capacity of 800 machine tools and advanced special programming, we have achieved short delivery times. We have presented over 20 examples of processed parts. Please feel free to contact us when you need our services. 【Processing Examples】 ■SUS304 ■φ40-L90 ■100 pieces ■Food equipment *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Other machine elements

At Parts Seiko Co., Ltd., we perform cutting and machining using NC (multi-tasking) lathes. Our main processing capabilities range from Φ3 to Φ300 (up to L1000), with hexagonal sizes from H4 to H44. We accommodate materials such as SS, SC, SCM, SUS, aluminum alloys, copper alloys, and resins. With our advanced equipment and specialized programs, we achieve short delivery times. We conduct high-precision machining through additional processing with NC lathes and multi-tasking machines. We have over 20 examples of processed parts available. Please feel free to contact us when you need our services. [Processing Examples] ■SUS316L ■φ70-L50 ■20 pieces ■Semiconductor-related *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Other semiconductors

At Parts Seiko Co., Ltd., we perform cutting and machining processes using machining centers. With an overwhelming capacity of 800 machine tools, we have achieved high-precision machining with our well-equipped facilities and skilled technicians. We offer over 20 examples of processed parts. Please feel free to contact us when you need our services. 【Processing Examples】 ■A5052 ■500-400-150 ■10 pieces ■Measuring equipment *For more details, please refer to the PDF materials or feel free to contact us.

• Processing Contract
• Other machine elements
• Machining Center

At Parts Seiko Co., Ltd., we perform cutting and machining processes using machining centers. The maximum movement range of our main size tools is X800×Y500×Z400. We accommodate materials such as SS, SC, SCM, SUS, aluminum alloys, copper alloys, and resins. With three domestic locations and two overseas locations, we provide the desired items, in the desired locations, in the desired quantities, with assured quality. We offer over 20 examples of processed parts. Please feel free to contact us when you need assistance. [Processing Examples] ■A5056 ■φ100-L80 ■20 pieces ■Medical devices *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Other machine elements
• Machining Center

At Parts Seiko Co., Ltd., we perform cutting and machining processes using machining centers. We achieve high-precision machining with well-equipped facilities and skilled technicians. We provide the desired items, in the desired locations, in the desired quantities, with guaranteed quality. Additionally, we offer over 20 examples of processed parts. Please feel free to contact us when you need assistance. 【Processing Examples】 ■A5052 ■60-40-30 ■20 pieces ■Printing equipment *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Other machine elements
• Machining Center

At Parts Seiko Co., Ltd., we perform cutting and machining processes using machining centers. The maximum travel dimensions of our main tools are X800×Y500×Z400, and we accommodate materials such as SS, SC, SCM, SUS, aluminum alloys, copper alloys, and resins. With an overwhelming capacity of 800 machine tools, we have achieved high-precision machining with our well-equipped facilities and skilled technicians. [Processing Examples] ■ A5052 ■ 200-200-10 ■ 100 pieces ■ Optical equipment * For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Other machine elements
• Machining Center

At Parts Seiko Co., Ltd., we perform cutting and machining processes using machining centers. The maximum movement range of the main size tools is X800×Y500×Z400. The materials we handle include SS, SC, SCM, SUS, aluminum alloys, copper alloys, and resins. We have achieved high-precision machining with our well-equipped facilities and skilled technicians. Please feel free to contact us when you need our services. 【Processing Examples】 ■ S45C (no Ni) ■ 200-50-50 ■ 100 pieces ■ FA equipment *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Other machine elements
• Machining Center

At Parts Seiko Co., Ltd., we perform cutting and machining processes using machining centers. The maximum travel distance for major tool sizes is X800×Y500×Z400, and we accommodate materials such as SS, SC, SCM, SUS, aluminum alloys, copper alloys, and resins. We provide the desired items, in the desired locations, in the desired quantities, with guaranteed quality. We offer over 20 examples of processed parts. Please feel free to contact us when you need our services. [Processing Examples] ■SUS304 ■φ100-L50 ■500 pieces ■Labor-saving equipment *For more details, please refer to the PDF materials or feel free to contact us.

• Processing Contract
• Other machine elements
• Machining Center

At Parts Seiko Co., Ltd., we perform cutting and machining processes using machining centers. With an overwhelming capacity of 800 machine tools, we have achieved high-precision machining with well-equipped facilities and skilled technicians. The maximum travel distance for major tool sizes is X800×Y500×Z400. We can handle materials such as SS, SC, SCM, SUS, aluminum alloys, copper alloys, and resins. Please feel free to contact us when you need our services. 【Processing Examples】 ■A5056 ■φ100-L50 ■50 pieces ■Analytical equipment *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Other machine elements
• Machining Center

At Parts Seiko Co., Ltd., we perform cutting and machining processes using machining centers. With an overwhelming capacity of 800 machine tools, we provide the desired items, in the desired locations, in the desired quantities, with guaranteed quality. We accommodate materials such as SS, SC, SCM, SUS, aluminum alloys, copper alloys, and resins. Additionally, we offer over 20 examples of processed parts. Please feel free to contact us when you need assistance. 【Processing Examples】 ■ S45C ■ 150-80-30 ■ 100 pieces ■ FA equipment *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Other machine elements
• Machining Center

At Parts Seiko Co., Ltd., we perform cutting and machining processes using machining centers. The maximum travel dimensions of our main tools are X800×Y500×Z400. We can accommodate materials such as SS, SC, SCM, SUS, aluminum alloys, copper alloys, and resins. We provide what you want, where you want it, in the quantity you need, with guaranteed quality. Please feel free to contact us when you need our services. 【Processing Examples】 ■SUS304 ■150-30-10 ■50 pieces ■Labor-saving equipment *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Other machine elements
• Machining Center