Gear Shaft - Ring Gear- Large Precision Gear China Supplier

About Us

Changzhou Tianshan Heavy Industry Machinery Co., Ltd was established on December 12, 2002, and is a tertiary subsidiary of AECC (Aero Engine Corporation of China). Located in Changzhou National Hi-Tech Industrial Development Zone, the company covers 66,670 square meters and has total assets of 0.73 billion RMB.

Tianshan specializes in the manufacturing of high-precision industrial gears and has been recognized as a National High-Tech Enterprise since 2009.

Industry Experience

Since 2005, Tianshan has supplied gears to a range of well-known domestic enterprises, including:

CQ Gearbox
NGC Group
Taiyuan Heavy Industry
Erchong Group
CFHI Group
SANY Group
Chongqing Wangjiang Industry Co.,Lta.
Shaanxi Oinchuan Machinery Development Co.,Ltd
Guodian United power
CHINFONG Group
Zhengzhou Machinery Institute

International Supplier Qualifications

Tianshan has successfully completed evaluation and quality certification processes for internationally recognized companies, including:

SIEMENS
VOITH
Bosch Rexroth
David Brown
MOVENTAS
FLSMIDTH
METSO

Following these evaluations and certifications, Tianshan has been approved as a qualified supplier for these international enterprises.

Tianshan has also served as the only inspection-free supplier for Erzhong Group in its history, reflecting its established quality and supply capabilities.

Gear used in wind power

Gear used in offshore oil platform

Gear used in rail transportation

Gear for air compressor

Gear used in mining, building materials and metallurgy

Technical specification

Category	Processing parameter range
Category	Modulus（mm）	Diameter/length（mm）	Material	Accuracy levelGB/T10095	Accuracy level JIS B1702-1703	Weight（kg）
Ring gear	2—42	φ100-φ10000	42CrMo4； 18Cr2Ni4W； ZG40CrNi2Mo； 42CrMoA	Level 4-6	Level 0-4	15-100000
Gear	2—40	φ100-φ8000	18CrNiMo7-6；17CrNiMo6； 20CrNiMo； 20CrMnMo	Level 4-5	Level 0-1	10-70000
Gear shaft	2—30	100-5000	18CrNiMo7-6；17CrNiMo6； 20CrNiMo；20CrMnMo	Level 4-5	Level 0-1	10-20000
Eccentric gear	10—38	φ500-φ4000	45	Level 4-5	Level 0-1	800-50000

Routine order tracking flowchart

Testing equipment

Photo Show

	Burning test	Fluorescent magnetic paticle inspection machine	Germany Klingelnberg1m & 3 m testing machine

1.5m tooth spacing testing	Germany Leitz 3-meter coordinate measuring machine	Metallographic testing	Spectrometer

Workshop

Photo Show

Aichelin pit heat-treatment furnace	Closed loading test bench	Deburring machine

Germany gleason-PFAUTER 10-meter high-speed hobbing machine	Grinding lathe	Grinding machine

Heat treatment workshop	Hobbing machine	Hobbing Workshop

Shot blasting machine	Stereoscopic warehouse	Vertimill

10-meter double column vertical turning and milling center	Germany NILES 8-meter grinding machine	Germany NILES grinding machine