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core×飯島精機 - List of Manufacturers, Suppliers, Companies and Products

core Product List

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[Production Example] Laminated Motor Core (φ110×35×0.2mm)

[Production Example] Laminated Motor Core (φ110×35×0.2mm)

In-mold laminated core using sequentially delivered press molds.

This is a laminated motor core (φ110×35×0.2mm). The material is 50A300, and it is primarily used for power transmission devices. This laminated motor core is assembled using a progressive die that performs lamination within the mold. A precision of 0.05mm is required for perpendicularity, parallelism, coaxiality, and roundness, necessitating advanced precision mold manufacturing technology, which is why we were consulted by the company that specializes in burr-free precision pressing. We are 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 solutions from prototype processing of custom motor cores and resolvers to mass production. Additionally, based on the data accumulated in our unique production management system, we offer products to our customers at reasonable prices. If you are facing issues 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] T-shaped 6-link laminated motor core (Poki-Poki Core)

[Production Example] T-shaped 6-link laminated motor core (Poki-Poki Core)

In-mold laminated core using sequentially delivered press molds.

This is a T-shaped 6-piece laminated motor core (Poki-Poki core). The material is 35A440, and it is primarily used for power transmission devices. Precision of perpendicularity and parallelism is required to be within 0.05mm, necessitating advanced precision mold manufacturing technology, which is why we were consulted by the company that specializes in burr-free precision pressing. Additionally, while other companies also manufacture individual T-shaped laminated cores, this one is laminated in a state where six T-shaped cores are connected together. If you are in need of custom motor core design and manufacturing or precision pressed parts, please feel free to download the materials or contact our custom shim manufacturing center.

  • DC Motor

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[Production Example] Laminated Core Prototype (φ150)

[Production Example] Laminated Core Prototype (φ150)

Wire cut, laminated core by adhesive lamination.

This is a laminated core prototype (φ150). It was manufactured using materials currently under development for a new motor project. In this laminated core, the electromagnetic steel plates are laminated and bonded beforehand, followed by processing using wire cutting. Our laminated core's bonding technology allows for high-precision lamination, packed with our unique know-how, and is one of the technologies that has received much praise from our customers. We are capable of sourcing a variety of materials, not limited to general iron and SUS, but also including amorphous products and special alloys. We provide a one-stop service from prototype processing to mass production of custom motor cores and resolvers. Additionally, based on the data accumulated in our unique production management system, we offer products to our customers at reasonable prices. If you are in need of prototype design and manufacturing of custom motor cores or precision press parts, please feel free to download our materials or contact our custom shim manufacturing center.

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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.

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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.

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[Production Example] Split Stator Core

[Production Example] Split Stator Core

In-mold laminated core using sequentially delivered press molds.

This is a mass-produced stator core. The material is 50A300, and it is used in power transmission devices. If you take a closer look at the overhead photo, you can see that it is laminated by performing round rivets in two places. In our company, for this type of riveting, we manufacture the stator core through lamination within the mold. We have received requests from customers to ensure the strength of the rivets and the vertical accuracy of the products as precisely as possible. Our company manufactures press parts centered around laminated cores to meet customer requirements, including riveting strength and vertical accuracy. We are 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 of custom motor cores and resolvers to mass production. Additionally, based on the data accumulated in our unique production management system, we offer products to customers at reasonable prices. If you have any concerns regarding the design and manufacturing of custom motor cores or precision press parts, please feel free to contact our custom shim manufacturing center.

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[Production Example] Resolver (Rotary Angle Sensor)

[Production Example] Resolver (Rotary Angle Sensor)

Wire cut, laminated core by adhesive lamination.

This is a resolver (rotary angle sensor). The material is 35A440, and it is a product mainly used for power transmission devices, classified as a laminated core product. This resolver undergoes processing by wire cutting after the electromagnetic steel sheets have been laminated and bonded in advance. Our laminated core's lamination bonding technology enables high-precision lamination bonding filled with unique know-how, and it is one of the technologies highly regarded by our customers. Additionally, this resolver required high precision. Therefore, we achieved high-precision wire cutting processing by dividing the cutting of each processing area into four stages. We accommodate the procurement of various 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 resolvers. Furthermore, based on the data accumulated in our unique production management system, we offer products to customers at appropriate prices. If you have any concerns regarding the design and manufacturing of custom motor cores, resolvers, or precision pressed parts, please feel free to contact our custom shim manufacturing center.

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[Production Example] Motor Core Assembly

[Production Example] Motor Core Assembly

Wire cutting, adhesive lamination, laminated core by winding.

This is a motor core assembly product. The material of the laminated core is 35A440, which is primarily used for power transmission devices and is classified as a laminated core product. This motor core undergoes processing by wire cutting after the electromagnetic steel sheets are laminated and bonded in advance. Our laminated core's lamination bonding technology enables high-precision lamination bonding filled with unique know-how, and it is one of the technologies that has received much appreciation from our customers. Additionally, in the wire cutting process, the T-shaped stator part is processed to be divided into “-” and “I” shapes. After that, a bobbin is attached to the laminated iron core in the “I” shape, and copper flat wire is wound around it. We accommodate the procurement of various materials, not only general iron and SUS but also from amorphous products to special alloys, and we provide one-stop support from prototype processing of custom motor cores and resolvers to mass production. Furthermore, based on the data accumulated in our unique production management system, we offer products to customers at reasonable prices. If you are facing issues with the design and manufacturing of custom motor cores or precision press parts, please feel free to contact our custom shim manufacturing center.

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[Production Example] Laminated Core Prototype (φ50)

[Production Example] Laminated Core Prototype (φ50)

Wire cut, laminated core by adhesive lamination.

This is a laminated core prototype (φ50). It was manufactured using materials currently under development for a new motor project. For this laminated core, we first laminated and bonded the electrical steel sheets, and then processed them using wire cutting. Our laminated core's bonding technology allows for high-precision lamination, packed with our unique know-how, and is one of the technologies that has received significant praise from our customers. We are 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. Additionally, based on the data accumulated in our unique production management system, we offer products to our customers at reasonable prices. If you are in need of prototype design and manufacturing of custom motor cores or precision press parts, please feel free to download our materials or contact our custom shim manufacturing center.

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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.

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[Production Example] Stepper Motor Core

[Production Example] Stepper Motor Core

Core using press-type inner layer.

This is a laminated core for stepping motors. It was manufactured by laminating electromagnetic steel sheets with a thickness of 0.2t using round dowel rivets. Unlike the common thicknesses of 0.35t or 0.5t for laminated core steel sheets, the 0.2t round dowel rivet lamination requires a very high precision press mold. However, our company designs and manufactures the press molds for laminated core production in-house, and we have numerous achievements and know-how regarding the prototype processing of laminated cores, so we can handle the production of laminated cores with such high precision without any issues. We are capable of sourcing a variety of materials, not only general iron and SUS but also from amorphous products to special alloys, and we provide one-stop support from prototype processing of custom shims to mass production. Additionally, 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 having trouble with the design and manufacturing of custom shims, please feel free to contact our custom shim manufacturing center.

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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.

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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.

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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.

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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.

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