We have compiled a list of manufacturers, distributors, product information, reference prices, and rankings for Motor Core.
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Motor Core Product List and Ranking from 5 Manufacturers, Suppliers and Companies

Last Updated： Aggregation Period:Jul 23, 2025～Aug 19, 2025
This ranking is based on the number of page views on our site.

Motor Core Manufacturer, Suppliers and Company Rankings

Last Updated： Aggregation Period:Jul 23, 2025～Aug 19, 2025
This ranking is based on the number of page views on our site.

  1. 新井製作所 Saitama//Machine elements and parts 本社工場
  2. 飯島精機 Nagano//Machine elements and parts
  3. カネミツ Aichi//Machine elements and parts 中部営業所
  4. 平井精密工業 Osaka//Electronic Components and Semiconductors
  5. 5 LEICONG麗鋼工業 Taiwan//Manufacturing and processing contract 台湾本社
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Motor Core Product ranking

Last Updated： Aggregation Period:Jul 23, 2025～Aug 19, 2025
This ranking is based on the number of page views on our site.

  1. Mold manufacturing - Prototype and mass production, Motor core division 新井製作所 本社工場
  2. [Production Example] Motor Core (φ250×0.2mm) 飯島精機
  3. Exhibit: Motor Core カネミツ 中部営業所
  4. [Production Example] Motor Core (φ110×0.2mm) 飯島精機
  5. 4 [Production Example] Stator Core (φ300×0.25mm) 飯島精機

Motor Core Product List

1～11 item / All 11 items

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[Production Example] Motor Core (φ110×0.2mm)

[Production Example] Motor Core (φ110×0.2mm)

Motor core by wire cutting

This is a motor core (φ110×0.2mm). The material is 35A440, and it is primarily used as a component for power transmission devices. For this core, we processed it by sandwiching multiple stacked blank materials with thicker iron to reduce vibration during processing caused by the injection of cutting fluid. The processing steps were carried out in the order of "outer circumference rough machining → hole rough machining → outer circumference finishing → hole finishing." Additionally, for motor cores of this shape, having only one start hole on the outer circumference would cause the workpiece to move during processing, so we created two or more start holes for machining. Our company is capable of sourcing a wide range of materials, from general iron and SUS to amorphous products and special alloys, and we provide one-stop support from prototype processing of custom shims to mass production. Furthermore, based on the data accumulated in our unique production management system, we offer products to customers at appropriate prices. Therefore, we also propose cost reduction from the design stage based on past processing data. If you are facing challenges with the design and manufacturing of custom motor cores or precision press parts, please feel free to contact our custom shim manufacturing center.

  • DC Motor

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[Production Example] Stator Core (φ300×0.25mm)

[Production Example] Stator Core (φ300×0.25mm)

Motor core made by press processing.

This is a stator core (φ300×0.25mm). The material is 25A, and it is a product used for power transmission devices. This stator core is quite large, with a size of φ3000mm, and using wire cutting would incur enormous costs in terms of both time and money. Therefore, our company manufactured it by creating a prototype mold and performing punching through press processing. While the size is large, the precision is similar to that of other parts, making it a product that requires high processing and assembly precision of the press mold components. However, at our custom shim manufacturing center, we were able to produce it with a beautiful finish and almost no burrs through burr-free precision press processing using molds with good assembly precision. Our company is capable of sourcing a variety of materials, not limited to general iron and SUS, but also including amorphous products and special alloys, providing one-stop solutions from prototype processing to mass production of custom motor cores and stator cores. Additionally, based on our unique data, we offer products to customers at reasonable prices. If you are having trouble with the design and manufacturing of custom motor cores and stator cores, please feel free to contact our custom shim manufacturing center.

  • DC Motor

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Custom motor cores contribute to reducing the manufacturing process time for motors.

Custom motor cores contribute to reducing the manufacturing process time for motors.

No mold costs for standard products! We offer a wide range of core molds for general standards such as IE4 high-efficiency induction motors and brushless motors.

Our company utilizes the technological expertise accumulated over 40 years of core production experience to propose materials and manufacturing processes that meet our customers' needs. 【Support for Motor Product Design】 We offer suggestions regarding the winding of high-efficiency induction motors. We also provide dynamometer testing and motor design parameters. 【Cutting Mold Development Costs】 We have a range of standard molds for general-purpose motor cores, such as IE4 high-efficiency induction motors, brushless motors, salient pole type, direct winding type, and DC motors. 【Production Capacity】 ■ We have the technical capability to produce core products that meet your required precision and performance. ■ TS16949 certification obtained. ■ In addition to inspecting the dimensions and precision of all products upon sample delivery, we also conduct sampling inspections during mass production, ensuring that the quality and tolerances of each lot are worry-free. ■ We have established an integrated production system within our factory, including processes such as die casting, argon welding, brazing, and annealing, achieving cost and time reductions for our customers.

  • transformer
  • electromagnet
  • Processing Contract

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[Production Example] Irregularly Shaped Hole Motor Core (φ110×0.2mm)

[Production Example] Irregularly Shaped Hole Motor Core (φ110×0.2mm)

Motor core made by press processing

This is a non-standard shaped hole motor core (φ110×0.2mm). The material is 20A, and it is primarily used as a vehicle component. This core is processed using our specialty burr-free precision pressing technique with a total knockout mold, significantly reducing burrs. Additionally, the flatness is finished beautifully, making it a precision pressed product. Furthermore, this core features non-standard hole processing, with hole punches arranged according to the shape of the magnet requested by the customer. Our company is capable of sourcing a variety of materials, not only standard iron and SUS but also from amorphous products to special alloys, and we provide one-stop support from prototype processing to mass production of custom motor cores and resolvers. Based on the data accumulated in our unique production management system, we offer products to customers at reasonable prices. If you are facing challenges with the design and manufacturing of custom motor cores or resolvers, please feel free to contact our custom shim manufacturing center.

  • DC Motor

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[Production Example] Motor Core (φ300×0.2mm)

[Production Example] Motor Core (φ300×0.2mm)

Motor core made by press processing.

This is a motor core (φ300×0.2mm). The material is 20A, and it is primarily used as a vehicle component. For this core, we perform burr-free precision pressing using a full-die mold, significantly reducing burrs. Additionally, the flatness is beautifully finished, making it a precision pressed product. We handle a wide range of materials, not only common steel and SUS but also from amorphous products to special alloys, providing one-stop support from prototype processing of custom shims to mass production. Furthermore, based on the data accumulated in our unique production management system, we offer products to customers at appropriate prices. Therefore, we also propose cost reduction suggestions from the design stage based on past processing data. Additionally, in the southern Nagano region where we are located, there is a unique processing network consisting of many excellent niche top companies with specialized technologies. By leveraging this unique processing network, we realize various parts manufacturing and technical proposals. If you are facing challenges with the design and manufacturing of custom motor cores or precision pressed parts, please feel free to contact our custom shim manufacturing center.

  • DC Motor

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[Production Example] Motor Core (φ250×0.2mm)

[Production Example] Motor Core (φ250×0.2mm)

Motor core produced by press processing.

This is a motor core (φ250×0.2mm). The material is 20A, and it is primarily used as a vehicle component. For this core, we utilize our expertise in burr-free precision pressing with a fully automatic die, minimizing burrs to the utmost extent. Additionally, the flatness is beautifully finished, making it a precision pressed product. We are capable of sourcing a variety of materials, not limited to general iron and SUS, but also including amorphous products and special alloys, providing one-stop support from prototype processing of custom shims to mass production. Furthermore, based on the data accumulated in our unique production management system, we offer products to customers at appropriate prices. Therefore, we also propose cost reduction from the design stage based on past processing data. Additionally, in the southern region of Nagano Prefecture, where we are located, there is a unique processing network consisting of many excellent niche top companies with specialized technologies. By leveraging this unique processing network, we can realize various parts manufacturing and technical proposals. If you are in need of custom motor core design and manufacturing or precision pressed parts, please feel free to contact our custom shim manufacturing center.

  • DC Motor

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[Production Example] Stator Core (φ250×0.2mm)

[Production Example] Stator Core (φ250×0.2mm)

Motor core made by press processing

This is a stator core (φ250×0.2mm). The material is 20A1500, and it is a product used for vehicles. This stator core is relatively large at φ250mm, and if processed by wire cutting, it would incur enormous costs in terms of both time and money. Therefore, our company manufactured it by creating a prototype mold and performing punching through press processing. Due to the narrowness and high number of teeth, high precision in the processing and assembly of the press mold components is required. However, at our custom shim manufacturing center, we were able to produce a clean finish with almost no burrs using precision press processing with molds that have good assembly accuracy. Our company is capable of sourcing a variety of materials, not only common iron and SUS but also from amorphous products to special alloys, and we provide one-stop support from prototype processing to mass production of custom motor cores and stator cores. Additionally, based on the data accumulated in our unique production management system, we offer products to customers at reasonable prices. If you are having trouble with the design and manufacturing of custom motor cores and stator cores, please feel free to contact our custom shim manufacturing center.

  • DC Motor

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[Production Example] Prototype Cut Product of Motor Core (Made of SECC)

[Production Example] Prototype Cut Product of Motor Core (Made of SECC)

Motor core by wire cutting

This is a motor core for vehicles. The material is SECC, and it has been processed using wire cutting. This motor core is a prototype cut piece for confirming the shape. Normally, motor cores are processed using electromagnetic steel sheets such as 20A1500, but this time, there was a request from the customer to quickly touch and verify the shape. Therefore, we have manufactured it using wire cutting with SECC material to ensure a short delivery time. Our company is capable of sourcing a variety of materials, not only standard iron and SUS but also from amorphous products to special alloys, and we provide one-stop support from prototype processing to mass production of custom motor cores. Additionally, based on the data accumulated in our unique production management system, we offer products to customers at reasonable prices. As a result, we also propose cost reduction from the design stage based on past processing data. If you are having trouble with the design and manufacturing of custom motor cores, please feel free to contact our custom shim manufacturing center.

  • DC Motor

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[Processing Examples] Etching Processing, Machining, Motor Core

[Processing Examples] Etching Processing, Machining, Motor Core

We will propose processing techniques that match the accuracy of product shape, your desired price, and lead time!

The motor core is a component that corresponds to the iron core part of the rotor (rotating part) and stator (stationary part) that make up a motor. For example, more than 50 motors are used in a single automobile. At Hirai Precision Industry, we can offer manufacturing of motor cores through etching and machining processes. The etching process is characterized by the absence of burrs in the thickness direction of the processed motor core itself. 【About the processing methods】 ■ Etching process - The absence of burrs in the thickness direction of the processed motor core itself is a feature. - Electrical steel sheets have an insulating film on both sides, and processing can be done while leaving this insulating film intact on both sides. ■ Machining process - Options for laser processing and wire processing are available. *For more details, please refer to the PDF materials or feel free to contact us.

  • Processing Contract

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Mold manufacturing - Prototype and mass production, Motor core division

Mold manufacturing - Prototype and mass production, Motor core division

Over 60 years of experience. Core motors that are essential for electrical appliances and conveying equipment.

Motors are an essential component in many electric products. We have been manufacturing and selling motor cores, which are the main parts, for over 60 years. Based on our extensive experience, we provide suitable proposals for our customers' motor production. We offer a wide range of general-purpose cores, but we can also provide one-stop support for customer-specific cores, from mold production to prototyping and mass production. 【Specifications we can accommodate】 Outer dimensions: 16mm to 140mm Maximum stacking thickness: In-mold stacking → 50t (more than that requires consultation; it varies depending on the finishing method) Materials: Pressed cut - 20HTH (0.2mm), 35A (0.35mm), 50A (0.5mm), spcc (0.5~1.0mm) Deep drawing - spce (1.6~2.6mm) Dimensional accuracy: 30μm *We have achievements beyond the specifications listed above, so please feel free to consult with us.

  • Other molds
  • Other machine elements

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Exhibit: Motor Core

Exhibit: Motor Core

The material used is electromagnetic steel sheet SPCC! This is a display item processed by laminated pressing.

We would like to introduce our exhibition item, the "Motor Core," which has been processed by our company. The material used is electrical steel sheet/SPCC, with a thickness ranging from t0.3 to 1.0. The processing method involved laminated pressing. Please feel free to contact us if you have any inquiries. 【Exhibition Item Overview】 ■ Material: Electrical steel sheet/SPCC ■ Thickness: t0.3 to 1.0 ■ Processing Method: Laminated pressing *For more details, please refer to the PDF document or feel free to contact us.

  • Processing Contract

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