小池精工 List of Products and Services

We would like to introduce examples of press mold manufacturing design and processing. Our molds are designed with a focus on smart mold technology and cost reduction from the design stage, reflecting material yield, part molding precision during the manufacturing stage, and part appearance in the final product, all rooted in a customer-first philosophy with a commitment to quality in design and production. [About Our Molds] ■ Smart mold technology at the design stage ■ Material yield leading to cost reduction ■ Part molding precision during the manufacturing stage ■ Parts that reflect product appearance ■ Mirror finish on rates *For more details, please refer to the PDF document or feel free to contact us.

• Press Dies
• Processing Contract
• Mold Design

We would like to introduce a case study of precision press processing for connector terminal components. At Koike Seiko, we focus on products made through precision press processing, particularly in the manufacturing of motor-related parts, OA-related parts, home appliance-related parts, and low-voltage-related parts, utilizing our drawing processing technology to provide products across various fields. 【Case Study】 ■ Final Component: Connector Terminal ■ Material: Copper ■ Processing Details: Progressive Press *For more details, please refer to the PDF document or feel free to contact us.

• Press Dies
• Processing Contract
• Mold Design

We would like to introduce a case study of precision press processing for outboard motor parts. At Koike Seiko, we focus on products made through precision press processing, particularly in the manufacturing of motor-related parts, OA-related parts, home appliance-related parts, and low-voltage-related parts, utilizing our expertise in drawing processing technology to provide products across various fields. 【Case Study】 ■ Final Product: Outboard Motor ■ Material: SUS, SK ■ Processing Details: Press Processing + Welding *For more details, please refer to the PDF document or feel free to contact us.

• Press Dies
• Processing Contract
• Mold Design

We would like to introduce a case study of precision press processing for solenoid parts used in laptops. Koike Seiko focuses on products made through precision press processing, particularly in the manufacturing of motor-related parts, OA-related parts, home appliance-related parts, and low-voltage-related parts, utilizing drawing processing technology to provide products across various fields. 【Case Study】 ■Product Name: CHIP_YOKE ■Final Part: Solenoid for laptops ■Material: SPCC ■Processing Details: Press processing + Lap polishing *For more details, please refer to the PDF document or feel free to contact us.

• Press Dies
• Processing Contract
• Mold Design

We would like to introduce examples of precision press processing for parts used in digital cameras. At Koike Seiko, we focus on products made through precision press processing, particularly in the manufacturing of motor-related parts, OA-related parts, home appliance-related parts, and low-voltage-related parts, utilizing our expertise in stamping technology to provide products across various fields. 【Example】 ■ Final part: Parts for digital cameras ■ Material: Phosphor bronze ■ Processing details: Progressive press processing *For more details, please refer to the PDF document or feel free to contact us.

• Press Dies
• Processing Contract
• Mold Design

We would like to introduce a case study of precision press processing for 2.5-inch HDD parts. Koike Seiko primarily focuses on products made through precision press processing, particularly in the manufacturing of motor-related parts, OA-related parts, home appliance-related parts, and low-voltage-related parts, utilizing deep drawing technology to provide products across various fields. 【Case Study】 ■Product Name: SPACER ■Final Part: 2.5-inch HDD part ■Material: SUS, Aluminum ■Processing Details: Progressive press processing ■Product Specifications: Hole diameter intersection less than 5μ, flatness less than 10μ ■Multiple molds *For more details, please refer to the PDF document or feel free to contact us.

• Press Dies
• Processing Contract
• Mold Design

We would like to introduce a case of cold forging processing for sewing machine parts. At Koike Seiko, we focus on products made through precision blanking, particularly in the manufacturing of motor-related parts, OA-related parts, home appliance-related parts, and low-voltage-related parts, utilizing our expertise in drawing processing to provide products across various fields. Additionally, our precision molds are crafted with a passion for manufacturing, a pursuit of accuracy, and accumulated know-how. 【Case Study】 ■ Final Part: Parts for 2.5-inch HDD ■ Material: Brass ■ Processing Details: Cold Forging *For more details, please refer to the PDF document or feel free to contact us.

• Press Dies
• Processing Contract
• Mold Design

We would like to introduce a case study of cold forging processing for 2.5-inch HDD components. At Koike Seiko, we focus on products made through precision blanking, particularly in the manufacturing of motor-related parts, OA-related parts, home appliance-related parts, and low-voltage-related parts, utilizing our expertise in drawing processing to provide products across various fields. 【Case Study】 ■Final Component: 2.5-inch HDD component ■Material: Brass ■Processing Details: Cold forging *For more details, please refer to the PDF document or feel free to contact us.

• Press Dies
• Processing Contract
• Mold Design

Here are examples of cold forging processing of copper materials. Koike Seiko primarily focuses on products made through precision blanking, and among these, we provide products to various fields, mainly manufacturing motor-related parts, OA-related parts, home appliance-related parts, and low-voltage-related parts using our drawing processing technology. [Examples] ■Material: Copper ■Processing details: Cold forging *For more details, please refer to the PDF document or feel free to contact us.

• Press Dies
• Processing Contract
• Mold Design

We would like to introduce an example of deep drawing processing for 3.5-inch HDD parts. At Koike Seiko, we focus on products made through precision blanking, and among them, we manufacture various products utilizing deep drawing technology, primarily for motor-related parts, OA-related parts, home appliance-related parts, and low-voltage-related parts. 【Example】 ■Product Name: ROTOR YOKE (BACK YOKE) ■Final Part: 3.5-inch HDD part ■Material: SPCC ■Processing Details: Deep drawing ■Product Specifications: Roundness 5μ or less, coaxiality 10μ or less, rotor balance 10mg/cm or less *For more details, please refer to the PDF document or feel free to contact us.

• Press Dies
• Processing Contract
• Mold Design

We would like to introduce examples of stamping processing for connector parts. At Koike Seiko, we primarily focus on products made through precision blanking, and among these, we manufacture motor-related parts, OA-related parts, home appliance-related parts, and low-voltage-related parts using stamping processing technology, providing products to various fields. 【Example】 ■Final part: Connector ■Material: SUS, SPCC ■Processing details: Stamping processing *For more details, please refer to the PDF document or feel free to contact us.

• Press Dies
• Processing Contract
• Mold Design

We would like to introduce an example of the stamping process for motor cover parts. At Koike Seiko, we primarily focus on products made through precision blanking, and among these, we manufacture various motor-related parts, OA-related parts, home appliance-related parts, and low-voltage-related parts using stamping technology. 【Example】 ■Product Name: YOKE ■Final Part: Motor Cover ■Material: SUY, SPCC, SECC ■Processing Details: Stamping ■Product Specifications: Coaxiality within 10μ, Roundness within 10μ *For more details, please refer to the PDF document or feel free to contact us.

• Press Dies
• Processing Contract
• Mold Design

We would like to introduce examples of processing vibration motor components. At Koike Seiko, we focus on products made through precision blanking, particularly manufacturing motor-related parts, OA-related parts, home appliance-related parts, and low-voltage-related parts using our expertise in drawing processing technology, providing products across various fields. 【Example】 ■Product Name: TOP_BOTTOM COVER ■Final Component: Vibration Motor ■Material: SUS ■Processing Details: Crushing processing, Burring processing, Drawing processing *For more details, please refer to the PDF document or feel free to contact us.

• Press Dies
• Processing Contract
• Mold Design

We would like to introduce a case study of drawing processing for small stepping motor components. At Koike Seiko, we focus on products made through precision blanking, and among them, we manufacture motor-related parts, OA-related parts, home appliance-related parts, and low-voltage-related parts utilizing drawing processing technology, providing products to various fields. 【Case Study】 ■Product Name: FRAME_YOKE ■Final Component: Small Stepping Motor ■Material: SUY_SPCC ■Processing Details: Drawing processing, cam cutting, trimming ■Product Specifications: Outer diameter φ4 to φ10, each precision below 10μ *For more details, please refer to the PDF document or feel free to contact us.

• Press Dies
• Processing Contract
• Mold Design

The "Examples of Drawing and Press Processing" is a collection of processing examples from Koike Seiko, including 14 case studies. *Includes equipment list. At Koike Seiko Co., Ltd., we focus on products made through precision press processing, particularly manufacturing motor-related parts, OA-related parts, home appliance-related parts, and low-voltage-related parts utilizing drawing processing technology, providing products across various fields. Additionally, our precision molds are crafted with a passion for manufacturing, a pursuit of accuracy, and accumulated know-how. With our unique responsiveness and the technical skills we have cultivated, we realize various customer requests. **Three Reasons to Choose Koike Seiko** ■ We turn your ideas into reality! ■ We achieve the shortest delivery times! ■ We realize cost reductions! *For more details, please download the materials or feel free to contact us.

• Press Dies
• Processing Contract
• Mold Design

The "Drawing and Press Processing [Collection of Examples of Drawing and Press Processing]" is a collection of processing examples from Koike Seiko, including 14 case studies. Koike Seiko Co., Ltd. primarily focuses on products made through precision press processing, particularly manufacturing motor-related parts, OA-related parts, home appliance-related parts, and low-voltage-related parts using drawing processing technology, providing products across various fields. Additionally, our precision molds are crafted with a passion for manufacturing, a pursuit of accuracy, and accumulated know-how. With our unique responsiveness and the technical skills we have cultivated over the years, we realize various customer requests. [Three Reasons to Choose Koike Seiko] ■ We turn "what you want" into reality! ■ We achieve the shortest delivery times! ■ We realize cost reductions! *For more details, please download the materials or feel free to contact us.

• Press Dies
• Processing Contract
• Mold Design

Our molds are designed with a focus on smart mold technology and cost reduction through material yield at the design stage, and parts that reflect molding accuracy and product appearance during the manufacturing stage, including mirror finishes. We are committed to designing and manufacturing with a customer-first philosophy. From the selection of mold materials to product precision, we manufacture without compromise. *For more details, please refer to the PDF document or feel free to contact us.*

• Processing Contract
• Contract manufacturing
• Other metal materials

We would like to introduce our "connector terminal components" that have undergone "precision press processing." In our precision pressing, we combine various processes such as "fine blanking," "shaving," "burring," "bending," "joining," and "shearing" to handle a wide range of products from simple shapes to complex geometries across various fields. In response to the needs of manufacturers, we produce a diverse array of connector-related components. At Koike Seiko, we believe that products should not just be made in shape; they are crafted according to the characteristics and applications requested by our customers. From the selection of mold materials to product precision, we manufacture without compromise. *For more details, please refer to the PDF materials or feel free to contact us.*

• Processing Contract
• Contract manufacturing
• Other metal materials

Our precision press handles various processing methods such as "fine blanking," "shaving," "burring," "bending," "joining," and "shearing," combining them to work on products ranging from simple shapes to complex geometries across various fields. The "shaving" process involves initially performing a blanking operation with a slight allowance, followed by a secondary blanking operation that allows the product's fracture surface to be entirely sheared. Typically, the fracture surface is more jagged than the sheared surface, leading to dimensional variations; however, by achieving an all-shear surface, the dimensions of the cross-section become uniform. Additionally, by cutting with the minimum allowance, we can minimize the occurrence of blanking droop. *For more details, please refer to the PDF document or feel free to contact us.*

• Processing Contract
• Contract manufacturing
• Other metal materials

We would like to introduce our achievements in "precision pressing" for "precision pressing processing of outboard motor parts." Our products undergo punching, bending, and drawing processes on stainless steel sheets, such as those with a thickness of 3mm, and we handle everything from riveting and assembly to welding in a consistent manner. At Koike Seiko, we combine various processing methods such as "fine blanking," "shaving," "burring," "bending," "joining," and "shearing" to handle a wide range of products, from simple shapes to complex geometries across various fields. [Work Process] ■ Cutting and processing of stainless steel bars are done using molds ■ Welding is performed in the final stage *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Contract manufacturing
• Other metal materials

We would like to introduce our achievements in "precision pressing" for "precision press processing of solenoid parts for notebook PCs." This product repeatedly attracts and detaches by flowing current through a permanent magnet and a coil at the tip of a U-shaped component. Typically, the finishing of the attracting surface is done through polishing, but this product has been developed in collaboration with manufacturers to ensure that the pressing finish meets the required attraction force. At Koike Seiko, we believe that a product should not just be about its shape; it should be tailored to meet the characteristics and applications as per our customers' requests. From the selection of mold materials to product precision, we manufacture without compromise. *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Contract manufacturing
• Other metal materials

We would like to introduce our achievements in "precision pressing" for "precision pressing processing of parts for digital cameras." Our product is made using a progressive die, combining processes such as punching, bending, and drawing. In our precision pressing, we combine various processes such as "fine blanking," "shaving," "burring," "bending," "joining," and "shearing" to handle a wide range of products from simple shapes to complex geometries across various fields. At Koike Seiko, we believe that products should not just be made in shape; they are crafted according to the characteristics and applications requested by our customers. From the selection of die materials to product accuracy, we manufacture without compromise. *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Contract manufacturing
• Other metal materials

We handle various products in different fields by combining various processes such as "fine blanking," "shaving," "burring," "bending," "joining," and "shearing," from simple shapes to complex geometries. Features: - Pursuit of outer shape, hole diameter, and hole position accuracy through progressive dies. - The use of the push-back method to reduce piercing resistance and minimize distortion of flat surfaces is a notable feature. - Hole diameter intersection: less than 5μ, flatness: less than 10μ. *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Contract manufacturing
• Other metal materials

We would like to introduce our achievements in "cold forging" for sewing machine parts. Forging processes can be broadly divided into hot forging, warm forging, and cold forging. Hot and warm forging involve adding heat to the blanks that form the basis of the products to improve workability, while cold forging allows for the creation of high-precision parts through die forging at room temperature. Additionally, because it targets dimensions close to the finished product, it results in better material yield. Furthermore, it eliminates processes such as cutting and heat treatment, leading to cost reductions. *For more details, please refer to the PDF materials or feel free to contact us.

• Processing Contract
• Contract manufacturing
• Other metal materials

We would like to introduce our achievements in "cold forging" for "2.5-inch HDD components." Forging processes can be broadly divided into hot forging, warm forging, and cold forging. Hot and warm forging involve applying heat to the blanks that form the basis of the products to improve workability, while cold forging allows for the shaping of high-precision parts at room temperature. Additionally, it enables targeting dimensions close to the final product, resulting in good material yield. Moreover, since processes such as cutting and heat treatment can be omitted, it leads to cost reduction. On the other hand, because the burden on the molds is significant, it is necessary to create molds that take into account the durability of the parts. *For more details, please refer to the PDF materials or feel free to contact us.

• Processing Contract
• Contract manufacturing
• Other metal materials

We would like to introduce our achievements in "cold forging" of copper materials. Forging processes can be broadly divided into hot forging, warm forging, and cold forging. Hot and warm forging involve applying heat to the blanks that become the products to improve workability, while cold forging allows for the formation of high-precision parts at room temperature. Our forging process primarily focuses on cold forging conducted at room temperature, pursuing precision, and through unique development regardless of the material of the parts, we are continuously accumulating technology and experience. *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Contract manufacturing
• Other metal materials

We would like to introduce our achievements in "drawing processing," specifically for "3.5-inch HDD components." This product is designed to pursue roundness and coaxiality precision through a drawing process that handles approximately 10% of the material thickness. Furthermore, we manage the rotational imbalance caused by uneven thickness in the drawing by using a balance measuring device. The drawing process places a significant burden on the mold parts, leading to rapid wear, so it is crucial to enhance durability. At Koike Seiko, we believe that a product should not just be functional in form; it should be crafted according to the characteristics and applications that meet our customers' needs. We manufacture without compromise, from the selection of mold materials to product precision. *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Contract manufacturing
• Other metal materials

We would like to introduce our achievements in "stamping processing," specifically in the stamping of connector parts. This product features a stamped section that serves as the cover for the connector terminal, with the stamped flange being attached to the equipment. During the stamping process, a material known as the shock line (shock mark) experiences a reduction in thickness due to stretching, which occurs on both the stamping side and the flange side. Therefore, when the flange becomes part of the product, we increase the die radius to minimize the reduction. Additionally, the shock line on the stamping side can be smoothed out to achieve a clean surface. At Koike Seiko, we believe that a product should not only be functional in shape but also tailored to meet the characteristics and applications requested by our customers. We manufacture without compromise, from the selection of mold materials to product precision. *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Contract manufacturing
• Other metal materials

We would like to introduce our achievements in "stamping processing," specifically in the stamping of motor cover parts. The maximum size for round shape stamping with our progressive die is an outer diameter of φ35 or less and a stamping height of 20mm or less. For single-stroke processing, the maximum range is limited by the equipment to within the pressure capacity of a 200TON press. Stamping processing allows for the handling of materials (ionizing), ensuring not only dimensional stability but also a beautiful finish in appearance. At Koike Seiko, we believe that products should not just be made in shape; they are crafted according to the characteristics and applications as per our customers' requests. From the selection of mold materials to product precision, we manufacture without compromise. *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Contract manufacturing
• Other metal materials

We would like to introduce our achievements in "stamping processing" for the "processing of vibration motor parts." Our specialty in stamping includes round stamping, square stamping, and irregular stamping, with a particular focus on round stamping. Motor parts and hard disk components utilizing round stamping achieve precision of less than 5μ for roundness, less than 15μ for coaxiality, and less than 10mg/cm for balance, along with a commitment to the appearance (mirror finish) achieved through the stamping process. At Koike Seiko, we believe that products should not only be functional but also tailored to meet the characteristics and applications as per our customers' requests. We manufacture without compromise, from the selection of mold materials to product precision. 【Process Steps】 ■ For case-type products, we determine the blank size and perform the stamping in one go. ■ For flat-type products, we thin the bottom thickness through crushing processing and apply barrelling processing at the center. *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Contract manufacturing
• Other metal materials

We would like to introduce our achievements in "stamping processing," specifically in the stamping of small stepping motor components. Our expertise in stamping includes round stamping, square stamping, and irregular stamping. In particular, motor parts and hard disk components utilizing round stamping achieve precision with a roundness of less than 5μ, coaxiality of less than 15μ, and balance of less than 10mg/cm, along with a focus on the appearance (mirror finish) achieved through the stamping process. At Koike Seiko, we believe that products should not only be functional but also tailored to meet the characteristics and applications requested by our customers. We manufacture without compromise, from the selection of mold materials to product precision. 【Work Process】 ■ For case-type products, the inner pole teeth are stamped, and the outer circumference is raised through stamping. ■ The shape of the pole teeth is formed through a die-casting process. *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Contract manufacturing
• Other metal materials

At Koike Seiko, we handle everything from the design and manufacturing of press molds to prototype and mass production of press processing, accommodating a wide range of fields with short delivery times, from small quantities of various types to large quantities of various types, ensuring a consistent production of press parts. We respond to our customers' inquiries such as "Can you do this?", "Can you meet this deadline?", and "Can you stay within this budget?" Even in cases that may seem challenging, our technical expertise, ideas, and abundant equipment can often make it possible, so please feel free to share your requests with us. 【Equipment Introduction (Partial)】 ■DOBBY (20t–30t) ■High-speed press (30t) ■High-flex press (45t–80t) ■Power press (50t) ■High-flex press (45t) ■Three-dimensional coordinate measuring machine ■Wire electrical discharge machining ■Machining center, etc. *For more details, please refer to the PDF document or feel free to contact us.

• Other processing machines
• Processing Contract

At Koike Seiko Co., Ltd., we primarily focus on products made through precision press processing, particularly in the manufacturing of motor-related parts, OA-related parts, home appliance-related parts, and low-voltage-related parts utilizing deep drawing technology, providing products across various fields. Our molds are designed and manufactured with a commitment to customer-first principles, incorporating material yield that leads to smart design and cost reduction at the design stage, and reflecting part molding accuracy and product appearance in the parts and mirror finishes at the production stage. 【Features】 ■ Material yield that leads to smart design and cost reduction at the design stage ■ Parts and mirror finishes that reflect part molding accuracy and product appearance at the production stage ■ Commitment to customer-first principles in design and manufacturing *For more details, please refer to our catalog or feel free to contact us.

• Press Dies
• Processing Contract
• Contract manufacturing

At Koike Seiko Co., Ltd., we combine various types of "press processing" to handle products in a wide range of fields, from simple shapes to complex geometries. Using progressive dies, we pursue precision in outer shape, hole diameter, and hole position accuracy for "parts for 2.5-inch HDDs," as well as "solenoid components for laptops" that repeatedly attract and release by flowing current through a permanent magnet and coil at the tip of a U-shape. We also offer "shaving processed products" that can achieve a fully sheared cross-section of the product. In response to manufacturers' requests, we also accept orders for a wide variety of connector-related components. 【Achievements】 ■ Precision press-processed parts for 2.5-inch HDDs ■ Precision press-processed parts for digital cameras ■ Precision press-processed solenoid components for laptops ■ Precision press-processed parts for outboard motors ■ Shaving processed products ■ Precision press-processed connector terminal components *For more details, please refer to our catalog or feel free to contact us.

• Press Dies
• Processing Contract

At Koike Seiko Co., Ltd., we primarily focus on products made through precision press processing, particularly in the manufacturing of motor-related parts, OA-related parts, home appliance-related parts, and low-voltage-related parts utilizing our drawing processing technology, providing products across various fields. Our forging process is mainly conducted through 'cold forging' at room temperature, pursuing precision, and through our unique development, we accumulate technology and experience regardless of the material of the parts. [Achievements] ■ Cold forged products made of copper (Material: Copper) ■ Cold forged parts for 2.5-inch HDDs (Material: Brass) ■ Cold forged parts for sewing machines (Material: Brass) *For more details, please refer to our catalog or feel free to contact us.

• Processing Contract

At Koike Seiko Co., Ltd., we primarily focus on products made through precision press processing, particularly in the manufacturing of motor-related parts, OA-related parts, home appliance-related parts, and low-voltage-related parts, utilizing our expertise in drawing processing technology. Our specialty, "drawing processing," includes round drawing, square drawing, and irregular drawing. In particular, motor parts and hard disk parts that utilize round drawing are produced with precision standards of roundness within 5µ, coaxiality within 15µ, and balance within 10mg/cm, along with a commitment to the appearance (mirror finish) achieved through the drawing process. [Achievements] ■ Drawing processing of small stepping motor parts ■ Processed products of vibration motor parts ■ Drawing processed products of motor cover parts ■ Drawing processed products of connector parts ■ Drawing processed products of parts for 3.5-inch HDDs *For more details, please refer to our catalog or feel free to contact us.

• Other machine elements
• Stepping motor
• Processing Contract

The "Deep Drawing and Press Processing [Deep Drawing and Press Processing Case Study Collection]" is a collection of processing examples from Koike Seiko, including 14 processing cases. At Koike Seiko Co., Ltd., we focus on products made through precision press processing, particularly manufacturing motor-related parts, OA-related parts, home appliance-related parts, and low-voltage-related parts using deep drawing technology, providing products across various fields. Additionally, our precision molds are crafted with a passion for manufacturing, a pursuit of accuracy, and accumulated know-how. With our unique flexibility, backed by the technical skills we have developed over the years, we realize various customer requests. [Three Reasons to Choose Koike Seiko] ■ We turn your "wants" into reality! ■ We achieve the shortest delivery times! ■ We realize cost reductions! *For more details, please download the materials or feel free to contact us.

• Press Dies
• Processing Contract
• Mold Design

At Koike Seiko Co., Ltd., we primarily focus on products made through precision press processing, particularly manufacturing motor-related parts, OA-related parts, home appliance-related parts, and low-voltage-related parts using our expertise in drawing technology. We provide products to various fields. Additionally, Koike Seiko's precision molds are crafted with a passion for manufacturing, a pursuit of accuracy, and accumulated know-how. To provide our customers with safety and trust, we promote the stabilization of high quality and propose total solutions from the process to meet various needs. For more details, please contact us or refer to our catalog.

• Contract manufacturing
• Processing Contract
• Press Dies