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Centerless Grinding Product List and Ranking from 7 Manufacturers, Suppliers and Companies

Last Updated： Aggregation Period:Sep 17, 2025～Oct 14, 2025
This ranking is based on the number of page views on our site.

Centerless Grinding Manufacturer, Suppliers and Company Rankings

Last Updated： Aggregation Period:Sep 17, 2025～Oct 14, 2025
This ranking is based on the number of page views on our site.

  1. エムワン精工 Tokyo//Manufacturing and processing contract
  2. 立石ファイバー Aichi//Manufacturing and processing contract
  3. 精研工業 本社 Osaka//Ferrous/Non-ferrous metals
  4. 4 有限会社コスモ精密 Tokyo//Manufacturing and processing contract
  5. 4 オーテック Gunma//Machine elements and parts
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Centerless Grinding Product ranking

Last Updated： Aggregation Period:Sep 17, 2025～Oct 14, 2025
This ranking is based on the number of page views on our site.

  1. Centerless grinding エムワン精工
  2. Through-feed grinding process 立石ファイバー
  3. [Examples of Precision Machined Products] Centerless Grinding 中西製作所
  4. Seiken Industrial Co., Ltd. Company Profile 精研工業 本社
  5. 4 Cosmo Precision Wire Cut Processing, Electric Discharge Machining, Centerless Grinding 有限会社コスモ精密

Centerless Grinding Product List

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[Examples of Precision Machined Products] Centerless Grinding

[Examples of Precision Machined Products] Centerless Grinding

Outer diameter tolerance of 1μ or less / Polishing can be done with a cylindrical accuracy of 1 to 2μ! We also accept polishing burr removal!

"Centerless grinding" has both in-feed and through-feed equipment, and we perform grinding with an outer diameter tolerance of less than 1μ and roundness accuracy of 1 to 2μ. We also carry out burr removal by buffing, with the in-feed type capable of grinding approximately φ50 and lengths up to 100. The through-feed type can process approximately φ40 and lengths up to about 300. 【Processing Overview】 ■ Grinding can be performed with an outer diameter tolerance of less than 1μ and roundness accuracy of 1 to 2μ ■ Burr removal by buffing is also implemented ■ In-feed type: approximately φ50 / capable of grinding lengths up to 100 ■ Through-feed type: approximately φ40 / capable of processing lengths up to about 300 *For more details, please refer to the PDF document or feel free to contact us.

  • Processing Contract

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Seiken Industrial Co., Ltd. Company Profile

Seiken Industrial Co., Ltd. Company Profile

Elevate your polishing skills to the next level for even greater "shine"! We are committed to the beauty of the finish that cannot be captured in drawings.

Seiken Industry has been dedicated to centerless grinding for over 35 years. As an industry, it is quite old, and what we do is very simple service. However, our employees find pride and passion in that simple work, and by approaching the machines with love, they produce wonderful products that are shipped out every day. In Japan, it has long been believed that polishing steel is akin to polishing the heart. Because our products are simple, we strive to create them with heartfelt dedication. We consider this to be our greatest strength. With the opening of our Chubu branch, we will not only focus on traditional grinding processes but also pour our employees' passion into providing detailed services tailored to customer needs, including centerless grinding of aluminum and copper products, as well as other processed parts. 【Business Content】 ■ Centerless grinding processing ■ Other polished round steel, etc. ■ Sales of processed products *For more details, please refer to the PDF document or feel free to contact us.

  • Contract manufacturing
  • Processing Contract

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Cosmo Precision Wire Cut Processing, Electric Discharge Machining, Centerless Grinding

Cosmo Precision Wire Cut Processing, Electric Discharge Machining, Centerless Grinding

We won't make our customers go through any hassle with bulk orders.

In addition to machining processes such as 5-axis machining, we have our own facilities for wire cutting and electrical discharge machining, allowing us to handle a wide range of processing. We also collaborate with partner factories for surface treatments and finishing, including internal polishing, flat polishing, centerless grinding, hardening, plating, and painting. We can deliver products through consolidated orders, minimizing the hassle for our customers.

  • Processing Contract

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Micron-level high-precision finishing centerless grinding

Micron-level high-precision finishing centerless grinding

To accommodate the diversification of work, we have multiple grinding machines for each type.

The demand for high precision in shafts, rollers, and axes is only increasing. At Autech Co., Ltd., we perform finishing processes using grinding machines to enhance precision to the level of 10μm. Finishing of the outer diameter is essential for achieving micron-level precision. To accommodate the diversification of workpieces, we own multiple grinding machines for each type. Automation allows for mass production. We can handle runout of less than 10 microns and dimensions of less than 10 microns. We offer centerless grinding and cylindrical grinding. For more details, please contact us.

  • Processing Contract
  • alloy
  • Engine parts

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Centerless grinding

Centerless grinding

In addition to medical devices and various gauges, we can also handle rare metals that are considered difficult to manage.

M1 Seiko provides high-level domestic "precision centerless grinding processing." Typically, in the field of centerless grinding, high precision often refers to a diameter tolerance of about 2/1,000 mm. Our company can achieve roundness of 3/10,000 mm at mass production levels. Additionally, we can handle medical devices and various gauges where precision cannot be compromised, as well as rare metals, which are often difficult to process in most factories. 【Features】 ■ Provides high-level domestic precision centerless grinding processing ■ Achieves roundness of 3/10,000 mm at mass production levels ■ Capable of handling medical devices, various gauges, and rare metals *For more details, please refer to the PDF document or feel free to contact us.

  • Processing Contract
  • Wafer processing/polishing equipment

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Centerless grinding service

Centerless grinding service

We respond to various product requirements of our customers with our unique technology and equipment!

Our company has specialized in centerless grinding since 1979, providing grinding processing for parts in various fields. Using the unique technologies and equipment developed through this process, we respond to a wide range of product requirements from our customers. Please feel free to contact us if you have any requests. 【Features】 ■ Specialization in centerless grinding ■ Grinding of non-magnetic metals is also possible ■ High product guarantee after processing ■ Production of original grinding wheels *For more details, please feel free to contact us.

  • aluminum
  • Non-ferrous metals
  • Processing Contract

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Through-feed grinding process

Through-feed grinding process

Tolerance and roundness are excellent! We introduce processing that can accommodate diameters from Φ3 to 30mm and lengths up to 180mm!

Centerless grinding is a type of cylindrical grinding, but it does not have a center to support the workpiece, hence it is called center-less, meaning "without a center." One of the advantages of centerless grinding is that the workpiece is guided along its entire length by the regulating wheel and blade, which minimizes the deformation of the workpiece itself, allowing for high-precision grinding. Our "through grinding processing" offers good tolerances and roundness, and can accommodate workpieces without steps. Please feel free to contact us when you need our services. 【Processing Example】 <Straight Pin> ■Dimensional Tolerance: Φ10 +0.015 +0.006 ■Grinding Area: L=30 ■Material: Hardened Product *For more details, please refer to the PDF document or feel free to contact us.

  • Processing Contract

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