Gear cutting tool and gear machine makers

Nidec Machine Tool Corporation (NIDEC MACHINE TOOL)

Japan (Ritto, Shiga) / Former names: Mitsubishi Heavy Industries Machine Tool → Nippon Densan Machine Tool (2021-08) → Nidec Machine Tool (2023-04)

ModuleThe module range of the tools is not stated on the public pages (machines: m1–35)

Cutting examples published by this company (23) →

The general catalog is requested through a download form (whether login is required is unconfirmed, so it is not cited as a source). Two public MHI-era technical reports were treated as material from the predecessor company

Sources^{[2][10][16][19][20][18][1][6][5][21][14][22][4][3][7][23][17][12][24][25][26][8][27][13][28][29][30][31][32][33][34][9][15][35][36]}One source / reference

Nachi-Fujikoshi Corp. (NACHI-FUJIKOSHI)

Japan (headquarters in Tokyo, Toyama)

ModuleThe module range supported by hobs and cutters is not stated in public sources (the examples are m1.0–2.5)

Cutting examples published by this company (11) →

The current public product list has no standalone pages for shaving cutters for external gears or for pinion cutters. The group company Nachi Seiko is described as making broaches and gear cutting tools (hobs, pinion cutters, etc.) to customer specifications

Sources^{[38][37][39][41][42][43][44][45][40][46][47][48][49]}One source / reference

Kyushu Seimitsu Kogyo Co., Ltd. (KSK brand; group company KSK Tool Co., Ltd.)

Japan (1512 Kubota, Kubota-machi, Saga City, Saga)

ModuleHobs for standard gears m1–30 (dimension table conforming to JIS B 4354 type J), carbide skiving hobs m1.5–25

Cutting examples published by this company (2) →

Founded in 1974 (started as a subcontractor for small hob cutters; renamed to the current name in 1986). Capital ¥25 million, 200 employees (group). Obtained a patent for a "skiving cutter" in 2020. In 2024 received the Governor's Prize of the Saga Prefecture Industry Awards for "development of ultra-small hob cutters" (carbide micron hobs)

Sources^{[51][52][50][53]}One source / reference

Kashifuji Co., Ltd.

Japan (Kyoto)

ModuleMachine maximum m2–20

A machine maker that does not make tools (hobs, etc.)

Sources^[84][85]One source / reference

DTR (Korean name Diti-al; written DTR Co. / DTR Corp. in English)

South Korea (85 Namdong-daero 370beon-gil, Namdong-gu, Incheon) / Former names: Dragon Precision Tools. Founded in 1976, renamed DTR in 2008

ModuleOfficial site: m0.1–6 (by product type). Trade-magazine directory: m0.5–32, AGMA A/AA/AAA

Cutting examples published by this company (1) →

The founding year, renaming year and m0.5–32 come only from a trade-magazine (Gear Technology) directory. The history page of the official site is rendered with JS and could not be checked. The URL of the catalog PDF was confirmed but its contents were not

Sources^{[54][55][56][57][58][59]}One source / reference

Harbin No.1 Tool Manufacturing Co., Ltd. (abbreviated "Ha Yi Gong")

China (Harbin, Heilongjiang)

ModuleNot stated on the official site

The predecessor, Harbin No.1 Tool Factory, was founded in 1948 (moved from Shenyang to Harbin in 1950). Describes itself as one of the "Big Four Tool Factories" together with Shanghai Tool Works, Chengdu Measuring & Cutting Tool Factory and Harbin Measuring & Cutting Tool Group. The product pages are photos only with no specifications

Sources^[60][61]One source / reference

Chongqing Tool Factory Co., Ltd. (Chongqing Tool Factory)

China (6 Jiangxi Road, Nan'an District, Chongqing)

ModuleDescribed as "complex gear cutting tools for small and medium modules" (no figures given)

Cutting examples published by this company (1) →

Established in 1966 by moving the gear tool division of Shanghai Tool Works to Chongqing (the predecessor was the Changjiang Iron Works of 1942). Part of Chongqing Machinery & Electric (02722.HK). Stated to have led the drafting of GB/T 14333-2008 (disk-type axial shaving cutters), GB/T 21950-2008, GB/T 5105-2008, GB/T 20247-2012 and GB/T 28252-2012 (pre-grinding gear hobs)

Sources^{[63][64][62][65][66]}One source / reference

Gleason Corporation (Gleason Cutting Tools)

USA (tool plants in Viganò, Italy; Eisenbach/Munich, Germany; Suzhou, China, etc.)

ModuleHobs m0.8–33 (workpiece diameter 20–300 mm, Viganò), carbide hobs m0.25–8, shaper cutters and skiving tools m0.2–26, shaving cutters m1–5 (Viganò) / up to m18 (m10 for internal gears)

Pfauter (hobbing machines), Hurth (shaving) and IMS Koepfer (Eisenbach, 2014) have been integrated into the group. Brochures require MyGleason registration, so they are not cited as sources

Sources^{[67][68][69][70][71][72][73][74][75][76][77]}One source / reference

Liebherr-Verzahntechnik GmbH

Germany (tool plants in Ettlingen, Germany and Turin, Italy)

ModuleShaving cutters m0.5–12.7, rolling racks max m1.6. Does not make hobs; offers only grinding and coating services

The machine series names LC and LS come from the page navigation

Sources^[78][79]One source / reference

LMT Tools (LMT Fette)

Germany

ModuleHobs m0.8–12, skiving tools m0.5–8, indexable peeling wheels m3–8 (the wording reads like machine translation). SpeedCore up to m16

Cutting examples published by this company (1) →

LMT Fette is described as a subsidiary of LMT Tools. The page says PWS know-how was integrated, but the form of integration (acquisition, etc.) is unconfirmed

Sources^{[81][82][80][83]}One source / reference