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Internal grinding machine Product List and Ranking from 7 Manufacturers, Suppliers and Companies

Last Updated： Aggregation Period:Sep 03, 2025～Sep 30, 2025
This ranking is based on the number of page views on our site.

Internal grinding machine Manufacturer, Suppliers and Company Rankings

Last Updated： Aggregation Period:Sep 03, 2025～Sep 30, 2025
This ranking is based on the number of page views on our site.

  1. トーヨーエイテック Hiroshima//Automobiles and Transportation Equipment
  2. セイコーインスツル 精密デバイス事業部 精機部 Chiba//Industrial Machinery
  3. null/null
  4. 和泉金属工業 Osaka//Industrial Machinery
  5. 5 株式会社酒井鉄工所 Niigata//Manufacturing and processing contract
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Internal grinding machine Product ranking

Last Updated： Aggregation Period:Sep 03, 2025～Sep 30, 2025
This ranking is based on the number of page views on our site.

  1. Internal Grinding Machine "T-11JA, T-11JAS" (Chuck Type) トーヨーエイテック
  2. Notice of Participation in "Mechatrotech Japan 2025"
  3. What is thin-walled machining? Achieving high precision processing! Solving deformation caused by gripping. セイコーインスツル 精密デバイス事業部 精機部
  4. Internal Grinding Machine "KN-113B" 和泉金属工業
  5. 4 Internal Grinding Machine "T-125N, T-1254N CNC Internal Grinding Machine" トーヨーエイテック

Internal grinding machine Product List

16～30 item / All 38 items

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Internal Grinding Machine "T-137N, T-177N CNC Internal Grinding Machine"

Internal Grinding Machine "T-137N, T-177N CNC Internal Grinding Machine"

Compatible with outer diameters up to 320mm, suitable for small to medium production processing of large bearings.

The internal grinding machines "T-137N, T-177N CNC" are large CNC internal grinders designed for processing large-diameter bearings with a workpiece outer diameter of up to 320mm, featuring improved changeover capability and precision adjustment. They promise stable high-precision processing with high machine rigidity and workpiece support using a 2-shoe magnet. For more details, please download the catalog.

  • Grinding Machine

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Internal Grinding Machine "T-11JA, T-11JAS" (Chuck Type)

Internal Grinding Machine "T-11JA, T-11JAS" (Chuck Type)

A simple structure internal grinding machine that supports processing with an inner diameter of φ1.5 to 170mm.

This is a versatile internal grinding machine that allows grinding with a manual machine feel. The T-11JAS is an internal grinding machine equipped with a high-rigidity spindle and a high-rigidity rotary dresser, based on the T-11JA. It is suitable for the production of various types and medium volumes of mold parts, gears, and more. The T-11JAS-4S features a 4-axis wheel head (turret) configuration, which can be optionally equipped on the above model, enabling unmanned continuous operation for high-precision processing of multiple surfaces. 【Specifications】 ○ External diameter of workpieces that can be chucked: 12–200 φmm ○ Width of workpieces that can be chucked: 125 mm ○ Internal diameter of workpieces that can be ground: 1.5–170 φmm For more details, please contact us or download the catalog.

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Internal Grinding Machine (Centerless Type) "T-11LB"

Internal Grinding Machine (Centerless Type) "T-11LB"

For mass production processing of bearings, automotive parts, and compressor parts.

The internal grinding machine (centerless type) "T-11LB" allows you to choose between a shoe & magnet chuck type (T-11LB88) and a 1 shoe & 2 roller type (T-11LB78) for optimal grinding processing. It also supports external diameter processing as an option. Instead of configuring the internal and external diameter processing with different models, it can be done with a single model, improving maintainability. 【Specifications】 ［T-11LB88］ ○ Work support method: 2 shoes & magnet ○ Applicable workpiece outer diameter: φ12–150mm ○ Width of workpieces that can be ground: 5–40mm ○ R groove dimensions that can be ground: up to 6mm (when equipped with optional rotary dresser) ［T-11LB78］ ○ Work support method: 1 shoe & 2 rollers ○ Applicable workpiece outer diameter: φ6–40mm ○ Width of workpieces that can be ground: 5–25mm ○ R groove dimensions that can be ground: up to 6mm (when equipped with optional rotary dresser) For more details, please contact us or download the catalog.

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Internal Grinding Machine "KN-113B"

Internal Grinding Machine "KN-113B"

Shoe Centerless Type Fully Automatic Internal Grinding Machine

The "KN-113B" is an internal grinding machine designed for the automation of mass-produced workpieces. With its unique powerful magnetic chuck, it supports the workpiece with a shoe and rotates it based on the right angle surface that has been ground on the outer diameter and end face. It is particularly suitable for internal grinding of components such as pairing, bushes, and collars, and is an ideal processing method for ensuring the concentricity of the outer diameter relative to the inner diameter. 【Features】 ■ The loading method can be selected from options such as T-type loaders, carrier methods according to the shape of the workpiece, single-arm methods, and flow-type methods, allowing for a reduction in idle time. ■ Direct dimensional gauges are also available, similar to the 113A type. *For more details, please download the PDF or contact us.

  • Other machine tools
  • Other processing machines
  • Grinding Machine

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Fusang Steel Pipe Grinding Equipment

Fusang Steel Pipe Grinding Equipment

We also accommodate grinding and polishing finishes! We have both large and small honing machines available.

We would like to introduce the polishing equipment owned by Fusang Steel Pipe Co., Ltd. We have various machines including the "Internal Grinding Machine," "Cylindrical Grinding Machine," and "Honing Machine." For components where surface roughness is critical, such as bushes, cylinders, and rods, we are equipped with various facilities to accommodate polishing finishes. 【Owned Polishing Equipment】 ■ Internal Grinding Machine: G1-20N ■ Cylindrical Grinding Machine: GP-47E 265 ■ Honing Machine: VA-14R・CVA-2000R *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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Seiko's internal grinding machine series

Seiko's internal grinding machine series

Inherit quality within.

Based on the technology cultivated in watch manufacturing, we propose various grinding machines that achieve precision and high-speed processing. With expert craftsmanship, we provide compact and energy-efficient internal grinding machines that are friendly to the factory environment.

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The performance of internal grinding machines is being sought for improvement across various industries.

The performance of internal grinding machines is being sought for improvement across various industries.

At Seiko Instruments, we have provided solutions by addressing our customers' needs.

Internal grinding is a type of grinding process that involves grinding the inner surface of cylindrical workpieces. In various industries such as automotive, home appliances, and information devices, where high functionality and complex internal structures are advancing, there is a demand for small, high-precision parts. In internal grinding used for processing these parts, a balance between high processing accuracy and productivity is desired. Additionally, beyond processing accuracy, the equipment itself for internal grinding machines must also meet various requirements. [Challenges] - Balancing high processing accuracy and productivity - The equipment for internal grinding machines must also respond to various demands - Space-saving and cost-effective equipment - Consideration for the environment - Improvement of processing accuracy and efficiency *For more details, please refer to the related links or feel free to contact us.

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[Case Study] Seiko Instruments' Internal Grinding Machine Solves Challenges <Precision Machined Parts>

[Case Study] Seiko Instruments' Internal Grinding Machine Solves Challenges <Precision Machined Parts>

We will introduce a case that enabled a reduction in lap processing time by improving surface roughness!

We would like to introduce a case where Seiko Instruments Inc. solved challenges through test processing. In the case of precision machined parts, a lapping process may be required in the post-process of inner surface grinding. To shorten the time required for processing, it is necessary to machine at a precision close to that of the final finishing lapping process during the inner surface grinding stage. By improving roundness, cylindricity, and surface roughness, the lapping process can be simplified. 【Case Overview】 ■Challenges - Shorten processing time - Machine at a precision close to that of lapping ■Results - Simplified lapping process - Achieved improvement in surface roughness in addition to shape accuracy *For more details, please refer to the related links or feel free to contact us.

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[Processing Example] Alumina General-purpose Grinding Machine CNC Internal Grinding Machine STG-3N

[Processing Example] Alumina General-purpose Grinding Machine CNC Internal Grinding Machine STG-3N

Introduction of a machining case where processing time was reduced by 50% and cylindricity was improved.

We would like to introduce a case study of "alumina" processing conducted by our company. In the customer's equipment, the roundness was approximately 4μm with a processing time of 2400 seconds, so we proposed a processing method to improve the roundness in about half the processing time. Compared to before implementation, we achieved a 50% reduction in processing time, a surface roughness of Ra 0.5μm or less, and a roundness of 1.0μm or less. 【Case Overview】 ■Processing dimensions: φ3.1mm×22.5mm ■Material: Alumina ■Features: Special material, long hole (L/D=6.4) ■Model: STG-3N ■Spindle: M15H-T (Max 150,000rpm) *For more details, please refer to the related links or feel free to contact us.

  • STG-3NX-右フリ-脚低.jpg
  • Other processing machines

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[Processing Example] Die General-purpose Grinding Machine CNC Internal Grinding Machine STG-6N

[Processing Example] Die General-purpose Grinding Machine CNC Internal Grinding Machine STG-6N

Achieving roundness of 0.8μm or less! Here are examples of cases where we proposed our spindles.

We would like to introduce a case study of "dice" processing that we conducted. In the customer's equipment, increasing the spindle rotation speed led to unstable precision, creating distrust in the spindle. Therefore, we proposed that our spindle maintains stable precision even at maximum rotation speed. Compared to before implementation, we achieved a 50% reduction in processing time and roundness of less than 1.0μm. 【Case Overview】 ■Processing dimensions: φ7.8mm×7mm ■Material: Carbide ■Features: Special outer diameter ■Model: STG-6N ■Spindle: SSPG-045 T100 (Max 45,000rpm) *For more details, please refer to the related links or feel free to contact us.

  • STG-6N斜161031.jpg
  • Other processing machines
  • Other molds

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[Processing Example] Die <Difficult-to-Cut Material> CNC Internal Grinding Machine STG-3N

[Processing Example] Die <Difficult-to-Cut Material> CNC Internal Grinding Machine STG-3N

As a result of the introduction, processing time reduced by 80%! Introducing a case study of die processing featuring difficult-to-cut materials.

We would like to introduce a case study of the processing of "dice" that we conducted. To shorten processing time, we introduced the "STG-3N." The processing dimensions are φ5mm×3mm, and the material used is carbide nib. As a result of the introduction, processing time was reduced by 80% compared to before, and the surface roughness was less than Ra0.2μm. 【Case Overview】 ■ Processing dimensions: φ5mm×3mm ■ Material: Carbide nib ■ Features: Difficult-to-cut material ■ Model: STG-3N ■ Spindle: M11H-TM (Max 110,000rpm) *For more details, please refer to the related links or feel free to contact us.

  • STG-3NX-右フリ-脚低.jpg
  • Dice
  • Processing Contract

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[Processing Example] Sleeve <Difficult-to-Cut Material> CNC Internal Surface Grinding Machine STG-3N

[Processing Example] Sleeve <Difficult-to-Cut Material> CNC Internal Surface Grinding Machine STG-3N

We will introduce examples of sleeve processing, which has reduced processing time by 80% compared to before implementation!

We would like to introduce a case study of machining sleeves (ceramic parts). The background for the introduction was the need to reduce processing time and improve shape accuracy and surface roughness. Compared to before the introduction, processing time was reduced by 80%, and the surface roughness is below Ra0.4μm, with roundness below 0.35μm. 【Case Overview】 ■ Machining dimensions: φ12mm×8mm ■ Material: Ceramics (SiC) ■ Features: Difficult-to-machine material ■ Model: STG-3N ■ Spindle: M11H-T (Max 110,000rpm) *For more details, please refer to the related links or feel free to contact us.

  • STG-3NX-右フリ-脚低.jpg
  • Ceramics
  • Other machine elements

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[Processing Example] Gear CNC Internal Grinding Machine STG-6N

[Processing Example] Gear CNC Internal Grinding Machine STG-6N

We will introduce a case study of gear processing that has reduced processing time by 80% compared to before implementation!

We would like to introduce a case study of machining gears (mechanical components). The background for the introduction was the need to reduce machining time. Compared to before the introduction, machining time has been reduced by 80%, and the surface roughness has achieved a result of Ra0.1μm or less. 【Case Overview】 ■ Machining dimensions: φ40mm × 37mm ■ Material: SCM415 ■ Model: STG-6N ■ Spindle: SSPG-045 T100 (Max 45,000rpm) *For more details, please refer to the related links or feel free to contact us.

  • STG-6N斜161031.jpg
  • gear
  • Processing Contract

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[Processing Example] Ring Gauge CNC Internal Grinding Machine STG-6N

[Processing Example] Ring Gauge CNC Internal Grinding Machine STG-6N

Improvement of product shape accuracy and reduction of cycle time are the background for the introduction! We will also introduce the effects of the implementation.

We would like to introduce a case study of the processing of "ring gauges" that we conducted. The processing dimensions are φ50mm × 20mm, and the material is SKS31. The background for the introduction was to improve product shape accuracy and reduce cycle time. After implementation, the surface roughness was reduced to Ra 0.1μm or less, and the roundness was less than 0.3μm, resulting in a 60% reduction in processing time compared to before implementation. 【Case Overview (Partial)】 ■ Background: Improvement of product shape accuracy, reduction of cycle time ■ Effects of Implementation - Surface roughness Ra 0.1μm or less - Roundness 0.3μm or less - Processing time reduced by 60% (compared to before implementation) *For more details, please refer to the related links or feel free to contact us.

  • STG-6N斜161031.jpg
  • Processing Contract

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High-precision free-form surface grinding machine SFS - Introduction to in-machine measurement function

High-precision free-form surface grinding machine SFS - Introduction to in-machine measurement function

Achieving high-precision processing by utilizing submicron-level repetitive measurement technology!

◇In-machine measurement function This function uses a touch probe on the tool table to measure the dimensions of the workpiece's R, taper, and straight shapes after processing within the machine. By repeating processing and measurement, it achieves machining with strict tolerances. As a feature of Seibu Electric, the combination of the machine's high positioning accuracy and high-precision touch probe enables high-precision machining. The minimum command unit for the X and Z axes of the high-precision free-form internal grinding machine SFG is 0.01μm (fully closed control). Both the work spindle and grinding wheel spindle are equipped with high-precision ceramic bearings, achieving high rigidity and high rotational accuracy. A constant temperature device is standard equipment, and special thermal countermeasures have been applied to various parts such as slides and spindles to ensure thermal stability.

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