平林精機 List of Products and Services

We are currently offering a "Product Case Study Collection" for precision parts featuring our knurling processing. This collection introduces shafts with flat knurling and motor parts with iris knurling, along with the characteristics of the processing and points of innovation. It also includes an overview of our knurling processing technology and a list of our equipment. We invite you to take a look. 【Contents (excerpt)】 ■ Flat knurling processing on the tip of shafts ■ Flat knurling processing in the center of rotating shafts ■ Iris knurling processing on the tip of motor parts ■ Flat knurling processing and slitting hole processing on the tip of rotating shafts *You can view it immediately via "PDF Download." Please feel free to contact us with any inquiries.

• nut
• Hydraulic Equipment
• Contract manufacturing

We are currently offering a "Product Case Study Collection" showcasing ultra-precision parts processing that our company has undertaken. This collection features semiconductor manufacturing equipment parts processed with hexagonal broaching, as well as shafts with flat knurling, highlighting their characteristics and innovative aspects. Additionally, it includes a list of our available equipment. We encourage you to take a look. 【Contents (Excerpt)】 ■ Ultra-small parts for the electronic components industry ■ Gear parts for the power equipment industry ■ Equipment parts for the semiconductor equipment industry ■ Equipment introduction (NC automatic lathes, secondary processing machines, inspection equipment, etc.) *You can view it immediately via "PDF Download." Please feel free to contact us with any inquiries.

• Other electronic parts
• Processing Contract

Here is an example of manufacturing rotating shaft components for industrial machinery. We received requests such as "Please perform the knurling according to the drawing" and "I would like the knurling pitch of 0.6 at the tip for delivery." Since it will be an iris knurling, care was taken to ensure that the peaks do not get flattened, and to attach a resin gear that rotates at the tip, measures were taken to prevent the gear from moving. Blank processing was carried out to enable insert molding. 【Case Details】 ■ Production capacity: 1,000 to 2,000 pieces/month (can accommodate pitch width and other specifications as needed) ■ Processing material: SUS430 ■ Machines used: All processing done in our factory ■ Work size: Outer diameter φ6 (consultation available regarding size / up to φ10 possible) *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Other electronic parts

Here is an example of the production of a rotating axis component. "We would like you to process the shaft with a knurling at a specified pitch of 0.42." "We would like you to include a slit at the tip for rotation and deliver it." The original slit processing is used when fixing an object, but for this component, there is a cross hole perpendicular to the slit, and we processed it so that a pin can be pressed in, allowing the counterpart component to rotate. 【Case Details】 ■ Production capacity: 1,000 to 3,000 pieces per unit ■ Processing materials: SUS416/SUS303 ■ Machines used: Knurling machine 　→ The shaft was made on a CNC machine, followed by processing on the knurling machine ■ Work size: For this product, φ6 *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Other electronic parts

Here is an example of the production of rotating shaft components. "We would like you to process the shaft with a knurling at the specified pitch of 0.42." "We request that knurling be applied to the center." To attach a resin gear that rotates at the tip, we devised a way to ensure the gear does not move. We performed blank processing to enable insert molding. 【Case Details】 ■ Production capacity: 1,000 to 3,000 pieces per unit ■ Processing materials: SUS416, SUS303 ■ Machines used: Knurling machine 　→ The shaft was made using a CNC machine, followed by processing on the knurling machine. ■ Work size: For this product, it is φ4 　(Consultation regarding size is possible / Maximum φ21 is feasible) *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Other electronic parts

Here is an introduction to a case study on the production of rotating shaft components. We received a request stating, "I would like you to process the shaft with knurling at the specified pitch." To attach a resin gear that rotates at the tip, we devised a way to ensure the gear does not move. We performed blank processing to enable insert molding. 【Case Details】 ■ Production capacity: 1,000 to 3,000 pieces per unit ■ Processing materials: SUS416/SUS303 ■ Machines used: All processing done using NC machining ■ Work size: For this product, the size is φ4 (Size can be discussed; maximum φ21 is possible) *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Other electronic parts

We would like to introduce a case study on the production of motor parts. We received requests such as, "Please perform knurling according to the drawing" and "I would like you to deliver it with a knurling pitch of 0.6 at the tip." Since it will be an Ayame knurling, we ensured that the peaks do not get crushed, and to attach a resin gear that rotates at the tip, we made sure the gear does not move. We performed blank processing to enable insert molding. 【Case Details】 ■ Production capacity: 1,000 to 2,000 pieces/month (can accommodate pitch width and other specifications as needed) ■ Processing material: SUS430 ■ Machines used: All processing done in our factory ■ Work size: Outer diameter φ6 (consultation available regarding size / up to φ10 possible) *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Other electronic parts

The "Knurling Processing Technology" of Hirabayashi Seiki is performed using a combination of in-house equipment. The types of knurling mainly include straight (flat) and diamond patterns, with the straight (flat) type capable of producing fine knurling with a pitch of 0.3 to 0.5 mm. It is common to use plastic or resin covers when screwing industrial machine parts, and this can be utilized as an anti-slip feature. 【Features】 ■ Processing using a combination of in-house equipment ■ Requires advanced technology to achieve uniform pitch ■ Adaptable according to the combination of equipment and circumstances ■ For straight (flat) type, a maximum pitch of 1.0 mm is possible ■ For diamond type, size adjustments can also be made with the same pitch *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

We would like to introduce the equipment owned by Hirabayashi Seiki Co., Ltd. We have various equipment including the NC automatic lathe "NN-10SBII," "K-12VII P," and secondary processing machines such as the "tabletop men-tori machine" and "knurling rolling machine." Our company is committed to improving productivity while maintaining and updating our equipment, and we strive to create products that meet our customers' needs through daily efforts. 【Owned Equipment (Excerpt)】 ■L20E XI ■TM50 ■Boraloupe ■Moving spindle base type "Cincom L12 VII" ■A20 high-pressure coolant *For more details, please refer to the PDF document or feel free to contact us.

• lathe
• Other inspection equipment and devices
• Other processing machines

We would like to introduce a case study on the production of device parts for the semiconductor equipment industry. We received a request stating, "We would like you to process from material to delivery according to the length and diameter based on the application." When performing hexagonal machining, there is a tendency for burrs to occur with the conventional processing method. Our company has devised ways to prevent burrs and contamination from affecting the process. The work sizes range from hexagonal H1.5 to H6.0, and φ25 to φ5. 【Case Details】 ■ Production capacity: 15,000 to 35,000 pieces/month (depending on material diameter) ■ Processed materials: S45C, SUS303, SUS304 ■ Machines used: All processing done using NC machining ■ Work sizes ・Hexagonal from H1.5 to H6.0 ・φ25 to φ5 *For more details, please refer to the PDF document or feel free to contact us.

• Other electronic parts
• Processing Contract

We would like to introduce a case study of gear parts manufacturing for the power device industry. We received a request stating, "We would like you to process and deliver according to the drawings for the power device manufacturer." We thoroughly managed the inner diameter that receives balls on both sides and the cutting at three locations at 60 degrees with a relative error of 0.04 or less for the 120 division. We used "SUS303" as the processing material and performed all processing with an NC machining machine. The work size is "φ12 and above." 【Case Details】 ■ Production Capacity: 200-300 pieces/month (small) / 5-20 pieces/month (large) ■ Processing Material: SUS303 ■ Machines Used: All processing was done using an NC machining machine ■ Work Size: φ12 and above *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Other machine elements

We would like to introduce a case study on the production of ultra-small components for the electronics industry. We received a request stating, "We would like you to deliver the internal components of the control device for the processing machine, considering the delivery time and quantity." Since these components are meant to be attached to electronic circuit boards, any burrs can cause failures such as shorts. Therefore, we thoroughly managed the burrs on the screw parts and the burrs on the slitting cutter. The work size is less than φ3, and we used NC machining for all processing. 【Case Details】 ■ Production Capacity: 10,000 pieces/month (varies by season) ■ Processing Materials: SF20T, Nickel-Chromium alloy ■ Machines Used: All processing was done using NC machining ■ Work Size: Less than φ3 *For more details, please refer to the PDF document or feel free to contact us.

• Other electronic parts
• Processing Contract

We would like to introduce a case study on the production of control system screw components for the electronics industry. We received a request stating, "We would like you to deliver the internal components of the control device for processing machines, considering the delivery time and quantity." Since these components will be attached to electronic component substrates, burrs can cause failures such as shorts. Therefore, we thoroughly managed the burrs on the screw parts and the burr management of the slitting cutter. The work size is less than φ3, and cutting processing is performed up to a tip diameter of φ0.6, using NC machining for all processing. 【Case Details】 ■ Production Capacity: 10,000 to 20,000 pieces/month (depending on the period) ■ Processing Material: SF20T, Nickel-Chromium alloy ■ Machines Used: All processing done using NC machining ■ Work Size: Less than φ3 (cutting processing up to tip diameter of φ0.6) *For more details, please refer to the PDF document or feel free to contact us.

• Other electronic parts
• Processing Contract

Hirabayashi Seiki was founded in 1970 as a specialized company for precision parts processing. Thanks to years of accumulated technology, we have continuously evolved our techniques in partnership with our customers, and we hope to reflect our experience and know-how in providing better precision parts for your products. Additionally, at our company, responding to numerous strict requests has made "fast production" a standard practice, and we are prepared to meet tight deadlines, even in emergencies or critical situations. If you think it might not be possible, please feel free to consult with us. 【Business Activities】 ■ Precision parts processing ■ Turning and rolling processing of difficult-to-cut materials *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

The "Processing Case Collection of Hirabayashi Seiki" is a collection of processing examples that includes knurling, screw rolling, hydraulic equipment parts, machining of difficult-to-cut materials, and solenoid processing, which are our areas of expertise. 【Examples Included】 ◯ Knurling ◯ Screw rolling using secondary processing machines ◯ Hydraulic equipment parts requiring ultra-high precision ◯ Solenoid processing ◯ Machining of difficult-to-cut materials ◎ For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

Our company specializes in the machining of difficult-to-cut materials, including both ferrous and non-ferrous metals, with a particular expertise in precision knurling. We respond quickly and cost-effectively to the machining of solenoid components, knurled parts, and a variety of other precision components. Please feel free to consult us about difficult-to-machine parts that may be challenging with just machining. 【Features】 ■ Capable of machining difficult-to-cut materials in ferrous and non-ferrous metals ■ Equipped to handle machining ranges from φ3.0 mm to φ32.0 mm ■ Citizen Machinery L32X (L32-IM10) LFV August equipment ■ Machining of parts related to solenoids, hydraulic equipment, optical devices, and medical devices ■ Knurling and thread rolling for difficult-to-cut materials ■ Domestic production under competitive conditions with overseas work zones ■ Ensuring QCD (Quality, Cost, Delivery) to reliably supply products from small lots *For more details, please download the PDF or feel free to contact us.

• Processing Contract
• bolt
• Other metal materials