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core Product List and Ranking from 30 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.

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. 昭和丸筒 Osaka//Paper and pulp
  2. 日本継手 Tokyo//Manufacturing and processing contract 東京営業部
  3. デザイン・ゲートウェイ Tokyo//Electronic Components and Semiconductors
  4. 4 DIAMET CORPORATION Niigata//Machine elements and parts
  5. 4 山本精機 Nagano//Manufacturing and processing contract 本社、THAI工場
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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. Dual-structure core for reducing roll tendency and shaft diameter conversion (Lotus Core) 昭和丸筒
  2. Core joint C core / CD core 日本継手 東京営業部
  3. Motor core by vacuum impregnation and lamination. 山本精機 本社、THAI工場
  4. 4 Nessum (formerly HD-PLC) IP core Panasonic Holdings Corporation / Nessum Department
  5. 5 Soft magnetic material laminated motor core

core Product List

1～15 item / All 245 items

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Dual-structure core for reducing roll tendency and shaft diameter conversion (Lotus Core)

Dual-structure core for reducing roll tendency and shaft diameter conversion (Lotus Core)

Keep the existing shaft (for 3 inches) and increase the outer diameter to 6 inches/8 inches! Reduce the curling tendency of films and labels during the process!

The "Lotus Core" can reduce the curling of films and labels! It is mainly used for winding separator films and in the winding processes of tack labels and tack seals. It is also effective for winding semi-finished products before they are cut into sheets. With existing equipment, it is possible to increase the winding diameter (6 inches/8 inches). It addresses cost issues related to equipment modifications and dummy winding of products. The more expensive the film, the greater the expected improvement! It prevents the deterioration of film performance caused by "curling" and "strong winding pressure" that occur during the winding process.

  • Paper and pulp products

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Functional core

Functional core

Reduce loss and waste with core selection! Featuring "M Core/G Core" and "High Precision ABS Core."

This is the catalog of our company, a specialist in round tubes, which has been manufacturing cores for over 90 years. We offer products such as the "M Core/G Core," which improves surface hardness and minimizes warping due to its flat winding process, as well as the "Clean Core," a paper core suitable for clean rooms with low dust generation. By utilizing this catalog, you can reduce waste and inefficiencies in core selection. 【Featured Products (Excerpt)】 ■ M Core/G Core ■ Clean Core ■ Step Core/SS Core ■ Paper Pallet APPA Pallet, etc. *For more details, please refer to the PDF document or feel free to contact us.

  • Paper and pulp products

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SS Placoare

SS Placoare

Significantly reduces the step marks at the beginning of the film roll!

This is a core with a cushioning function applied to the surface of a plastic core, designed to reduce "step marks" at the beginning of film winding. ■ A special stress-relief layer absorbs the steps caused by the thickness of the film. ■ The transfer of step marks to the film is minimized. ■ There is a proven reduction of up to 90% in step loss (effects may vary depending on the customer). The higher the unit price per square meter of the film, the more likely it is to see improvement effects!

  • Other packaging materials

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Segmented ABS core

Segmented ABS core

Significantly reduces the starting edge marks of film and flooring sheets!

This is a core designed to reduce step marks, with a step equivalent to the film thickness provided on the core surface in advance. ■ Step marks are alleviated from the beginning of the winding process due to special processing. ■ Proven results of up to 90% reduction in step loss (effect may vary depending on the customer).

  • Other packaging materials

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Winding core

Winding core

Cost reduction is possible! A high-performance, high-functionality core that supports various winding types!

We would like to introduce the winding cores that we handle. Starting with the "high-performance film core," which meets the demands for high strength, high precision, and high cleanliness, we also offer the "Lotus Core - HL Core," which eliminates film and sheet winding defects, among other products. Additionally, we provide various packaging materials for film packaging. 【Paper Tube Lineup】 ■ High-performance film cores - G Core, M Core - Clean G Core, Clean M Core ■ Pulping cores ■ General winding cores *For more details, please refer to the PDF materials or feel free to contact us.

  • Paper and pulp products

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Metal roll pallet with FRP core

Metal roll pallet with FRP core

Packaging materials that solve problems related to the packaging and transportation of heavy films weighing over 1 ton.

We will introduce examples of packaging materials that solve problems related to the packaging and transportation of large films weighing over 1 ton. For film rolls such as polarizers, which weigh around 1 ton each, a combination of metal roll pallets and FRP cores is fundamental. Many products are headed to China and South Korea. The design is built to withstand the G-forces experienced at sea and when traveling on poorly maintained roads. In terms of cost, it is reasonable and not as expensive as aluminum. The roundness of the FRP core is less than 0.05. The pallets can be folded and reused.

  • fiber

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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.

  • DC Motor

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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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Rectangular gap core

Rectangular gap core

Hall element-based magnetic flux detection current sensor core.

Current sensors using our core are used in various applications, including industrial equipment, railway-related systems, electric vehicles, solar power generation, and energy-saving devices.

  • Sensors

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