Last Updated： Aggregation Period:Oct 22, 2025～Nov 18, 2025
This ranking is based on the number of page views on our site.
Last Updated： Aggregation Period:Oct 22, 2025～Nov 18, 2025
This ranking is based on the number of page views on our site.
Last Updated： Aggregation Period:Oct 22, 2025～Nov 18, 2025
This ranking is based on the number of page views on our site.
61～75 item / All 75 items
Centerless internal grinding machine suitable for mass production processing of miniature bearings with a width of 1m.
This machine is a centerless CNC internal grinding machine that adopts a one shoe and two roller work support method, targeting small diameter workpieces with an inner diameter of 1.5mm and above.
Ideal for high-precision machining of ultra-precision mechanical parts, optical parts, and mold parts.
The internal grinding machine "T-125N, T-1254N CNC Internal Grinding Machine" is a medium-sized CNC internal grinding machine with a chuck type, ideal for high-precision machining of ultra-precision mechanical parts, optical components, and mold parts. It accommodates medium diameter sizes up to an inner diameter of 250mm and offers options such as a 40% turret specification, automatic spindle swivel device, and C-axis NC stroke specification, all designed to support high-precision machining. For more details, please download the catalog.
Medium-sized CNC internal grinding machine for small to medium production processing with improved segment changeability and precision adjustment.
The internal grinding machines "T-127N, T-167N CNC" are medium-sized CNC internal grinders designed for small to medium production processing of medium to large diameter bearings with workpiece outer diameters ranging from 90 to 240 mm. They feature improved changeover capability and precision adjustment. The two-shoe magnet work support system contributes to the productivity of high-precision bearings. For more details, please download the catalog.
This is a model that achieves high precision and high efficiency processing while also being capable of handling varied and variable production.
Equipped with a newly developed chuck that reduces workpiece distortion during clamping and designed to be more compact than before, it also features a high-speed work spindle with a maximum rotation speed of 3,000 min-1, a high-resolution servo motor, and a newly developed single-arm loader, achieving higher precision and productivity in machining. Furthermore, to facilitate the layout of the production line, each conveyor connecting the front and rear processes is arranged in a straight line. Additionally, the number of setup change parts during workpiece changes has been reduced by more than 30%, significantly shortening setup time. It can flexibly accommodate mixed and variable production. 【Specifications】 ○ Outer diameter of workpieces that can be chucked: 12–200 φmm ○ Width of workpieces that can be chucked: 80 mm ○ Inner diameter of workpieces that can be ground: 6–100 φmm For more details, please contact us or download the catalog.
Insert the grinding stone into the hole, and both the product and the grinding stone rotate! Grinding is performed by the cutting of the grinding stone and the forward and backward feeding.
An internal grinding machine is a type of machine tool used for grinding the inner surfaces of holes, and some models can perform end face grinding to ensure the perpendicularity between the hole's axis and its end face. By grinding the end face and the hole simultaneously, high-precision machining can be achieved. Additionally, unlike honing, the positional accuracy of the hole does not depend on prior processing (previous steps) and can accommodate various hole diameters with a single grinding wheel. The size that can be ground is determined by the diameter of the grinding wheel and the machine's stroke, allowing for the grinding of stepped shapes and tapered surfaces, which is one of the features that enables precise coaxiality (concentricity). For more detailed information, please refer to the related links. *For more details, please check the PDF materials or feel free to contact us.*
We offer a wide range of precision internal grinding machines that achieve ultimate precision machining.
The Science Instrument Research Institute Co., Ltd. manufactures and sells precision internal grinding machines. The hydraulic semi-automatic fixed-length GIS-200SH model is designed for high-efficiency production of various small-batch items that require frequent setup changes, items with large angle tapers, those with steps on the inner surface, long items, and those that require vibration dampening, making them easy to handle. The digital control GIS-20N model is an all-automatic internal grinding machine designed for efficient processing of small-diameter workpieces while saving space. We offer a wide range of precision internal grinding machines that achieve ultimate precision machining. 【Product Lineup】 [Hydraulic Semi-Automatic Fixed-Length] ○ GIS-200SH model ○ GIS-200SHL model [Digital Control] ○ GIS-25HE(L) model ○ GIS-20N model, etc. For more details, please contact us or download the catalog.
Simultaneous processing of 2 units is possible! We have achieved a stabilization of the supply and discharge positions through spindle fixation.
The "KIH80 II" is a high-performance, high-precision new internal grinding machine. It is capable of processing two pieces simultaneously. By stabilizing the supply and discharge positions through fixed spindle operation, we have pursued ease of use. Additionally, it is equipped with a high-frequency rotary dressing device, enhancing its functionality. For more details, please contact us. 【Features】 ■ Pursuit of ease of use ■ Adoption of performance stabilization technology ■ Enhanced functionality ■ Capability to process two pieces simultaneously ■ Compatible with CBN wheels *For more information, please refer to the PDF document or feel free to contact us.
Equipped with an automatic transport system! Capable of high-precision grinding of various difficult-to-machine materials wafers.
The "R631DF" is a super precision surface grinding machine designed for high-precision grinding. It features a built-in servo motor type air spindle. With a high rigidity (μm/300N) air static bearing, it offers a high damping effect. Additionally, it replaces the conventional lapping process with a grinding process, achieving high efficiency and full automation. 【Features】 ■ Vertical axis type ■ Compatible with various hard-to-machine materials and wafer grinding ■ Equipped with an automatic transport system ■ High-precision grinding of various hard-to-machine material wafers ■ Replaces the conventional lapping process with grinding, achieving high efficiency and full automation *For more details, please refer to the PDF document or feel free to contact us.
![[New Model] Small Diameter and Precision Machining CNC Grinding Machine FX7 ULTRA](https://image.mono.ipros.com/public/product/image/3a0/2001436334/IPROS58354051199396713979.png?w=280&h=280)
Applying machining technology at the sub-micron level for cutting tools that enables superior quality, performance, and long lifespan!
The "FX7 ULTRA" is a new model of CNC tool grinding machine designed for small and fine tools up to 0.03mm. The servo control algorithm, developed by ANCA, utilizes a unique algorithm and the nanometer measurement capabilities of its proprietary control system to achieve elegant and smooth movements of the axes. Additionally, the smooth parameters allow for more reliable control of speed and acceleration/deceleration, along with limiting machine jerk. 【Features】 ■ Improved rigidity of the C-axis ■ More reliable control of speed and acceleration/deceleration along with limiting machine jerk ■ Achieves elegant and smooth movements of the axes ■ Quick response to internal and external obstacles ■ Ultra-high performance of the servo system *For more details, please feel free to contact us. Related keywords: Tool grinding / High precision / Micro tools / Small diameter tools / Oil holes / Small diameter drills / Small diameter end mills / Ultra-precision machining / Fine machining / High resolution / Temperature control / Linear motors / Laser measurement / Runout correction / Automation / Labor-saving / 24-hour operation / Mass production / Large-scale production / Automotive / Medical / Aerospace / Semiconductors
Achieve equipment sizes that match the size of the workpiece! It is highly versatile and has excellent scalability.
At Seiko Instruments, we offer a space-saving internal grinding machine with excellent machining accuracy. We have achieved a machine size that fits small workpieces without sacrificing the operability and usability for the operators using the equipment. The machining accuracy is realized by adopting a high-performance high-frequency spindle developed in-house. Additionally, the main body of the equipment is highly versatile and has excellent expandability. 【Features】 ■ Space-saving with excellent machining accuracy ■ Does not sacrifice the operability and usability for the operators using the equipment ■ Achieves a machine size that fits small workpieces ■ Adopts a high-performance high-frequency spindle developed in-house ■ Main body of the equipment: highly versatile and excellent expandability *For more details, please refer to the related links or feel free to contact us.
A highly versatile 2-roll, 1-shoe spindle has been newly developed by applying the method used for inner surface grinding of components such as ball bearings. *Processing examples available.
Thin-walled machining is a process that involves machining a workpiece to a thin profile while maintaining high precision. Workpieces that require internal grinding often demand not only roundness and surface roughness but also concentricity concerning the outer diameter. This is especially true for thin-walled workpieces, where deformation due to gripping becomes a challenge. Seiko Instruments has developed a highly versatile 2-roll, 1-shoe spindle, applying methods previously used for internal grinding of ball bearing components to avoid deterioration of shape accuracy caused by gripping. If you are facing issues with shape accuracy due to gripping, such as with scroll chucks, collet chucks, or mandrel chucks, please feel free to consult us. *For more details, please refer to the PDF document or feel free to contact us.*
![[Case Study] Seiko Instruments' Internal Grinding Machine Solves Challenges <Precision Machined Parts>](https://image.mono.ipros.com/public/product/image/bce/2000776674/IPROS81471409926128659221.png?w=280&h=280)
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.
