Last Updated： Aggregation Period:Jun 10, 2026～Jul 07, 2026
This ranking is based on the number of page views on our site.
Last Updated： Aggregation Period:Jun 10, 2026～Jul 07, 2026
This ranking is based on the number of page views on our site.
Last Updated： Aggregation Period:Jun 10, 2026～Jul 07, 2026
This ranking is based on the number of page views on our site.
1～7 item / All 7 items
Kato Grinding Works is a group of engineers that responds to diverse needs in precision grinding processing.
Manufacturing various precision parts with grinding technology accumulated over more than 50 years.
KONISHI Manufacturing Group's overseas business, which manufactures low-cost and stable jigs and machine parts.
Our company has a base in Vietnam and manufactures low-cost and stable jigs and machine parts. The key factor for stable quality is that more than half of the local workers have undergone training in Japan and have mastered the fundamental techniques, which prevents variations in quality. High-precision parts processing is our specialty. With our technical expertise in ultra-precision processing using various grinding machines, we primarily supply parts for the automotive, home appliance, and electronic device industries, and we accept orders for parts in all fields. 【Products】 ○ Production of jigs and tools ○ Manufacturing of automotive parts, air conditioning equipment, ultra-precision processed products, etc. ○ Harness and lead wire processing and assembly, among others For more details, please contact us or download the catalog.
Using special jigs for complex-shaped parts, we manage balance accuracy numerically with our unique grinding technology, ensuring thorough uniform quality control!
【Processing Details】 Cylindrical grinding → Hard chrome plating → Buffing Since there is a Φ52 hole that goes through, it was polished using a rotating center. After hard chrome plating, it was buffed to achieve a mirror finish. Thin plating and buildup of hard chrome plating can also be done. Additionally, machining such as turning, milling, hardening, and gear cutting can be performed. Polishing is done after plating. 【Processing Shape】 - Material: SUS304 (Stainless Steel) - Dimensions: Φ80×764.5L (Straight) - Quantity: 1 piece
Kato Grinding Works is a group of engineers that responds to diverse needs in precision grinding processing.
Manufacturing various precision parts with grinding technology accumulated over more than 50 years.
Various precision grinding processes to sub-assembly.
Nishiken Seiki Manufacturing Co., Ltd. manufactures machine tool parts, air tool parts, construction machinery parts, hydraulic equipment parts, and more. We specialize in precision grinding of flanges and cater to a variety of small lot productions. We have established a system to deliver finished products with a focus on ordinary steel, stainless steel, and special steel, utilizing in-house material supply. We possess a diverse range of machinery, including grinding machines, lathes, and machining centers, enabling us to handle a wide range of processes from precision grinding to sub-assembly.
![[Processing Example] Taper Grinding of Center Sleeve for Eccentric Inspection Device](https://image.mono.ipros.com/public/product/image/2117992/IPROS16516044737105055368.jpg?w=280&h=280)
A case where a reliable fit without play was achieved by improving the taper accuracy of both parts!
We would like to introduce a case of precision grinding two components used in an eccentricity inspection device. The center and sleeve have a structure where they fit together at the tapered part, requiring high coaxiality and fitting accuracy. The center was processed with cylindrical grinding to create the outer diameter taper, while the sleeve was finished with cylindrical grinding for the outer diameter and then processed with internal grinding for the inner diameter taper. 【Case Overview】 ■ Material: SUJ-2 (high carbon chromium bearing steel) ■ Product Size - Center: 60° tip, φ18×90mm - Sleeve: φ28×123mm, inner diameter φ17.78 ■ Processing Conditions - Center: cylindrical grinding (outer diameter taper, 60° tip) - Sleeve: cylindrical grinding (outer diameter) + internal grinding (inner diameter taper) *For more details, please download the PDF or feel free to contact us.
Flat grinding processing and tapping processing
Precision machining of mechanical parts using various working machines, from general-purpose and NC milling to molding and flat grinding of parts. We focus on grinding processes, capable of flat grinding from small molded parts up to 400×550 in size. Additionally, we aim to develop high-precision micro-machining technology for non-magnetic materials such as copper, brass, and stainless steel, as well as mastering flatness processing techniques for thin plates. Machining of screw threads for acid press parts and aluminum die-cast parts.
