Changsha Keai Transmission Equipment Co., Ltd. is a professional manufacturer and supplier of a wide range of transmission products, including chains, sprockets, gears, and other power transmission components.
 
Backed by China’s largest export-oriented manufacturer of transmission parts, we provide high-quality products to both domestic and international markets. Since our establishment, we have earned high recognition from customers worldwide and provide OEM manufacturing for internationally renowned transmission enterprises.
 
With a pioneering and progressive spirit, we are committed to supplying customers worldwide with premium products and comprehensive professional technical services.
 
Our standard products in various specifications are sold throughout China, with over 70% exported to overseas markets, including Europe, the United States, Japan, Southeast Asia, and other regions.
 
Our factory is a large-scale professional manufacturer of:
 
All standard chains, sprockets, gears, racks, couplings
Custom non-standard chains and sprockets
 
We operate more than 1,000 sets of metal-cutting and supporting equipment, with an annual production capacity of:
 
10 million meters of chains
10 million pieces of sprockets
1.5 million sets of taper bushings
 
We also provide custom manufacturing of non-standard transmission parts according to customer requirements.
 
All our products comply with international standards (ISO) and advanced industrial standards, including DIN, ANSI, BS, and JIS. 
We possess sophisticated equipment, advanced production technology, and a complete quality management system.
 
Our certifications include:
 
ISO9002
ISO9001
API
ISO/TS16949
ISO10012
 
“Continuous development and meeting customer needs is our eternal pursuit.”
 
Adhering to the enterprise spirit of integrity, innovation, efficiency, and excellence, we will continue to build a world-class chain drive enterprise with confidence and strength.
 

 
Main Products
 
A & B series precision roller chains (3/8" – 2")
Stainless steel chains, plastic chains, flat top chains, high-precision conveyor chains
Sprockets, pulleys, timing pulleys, V-ribbed pulleys
Taper lock bushes, locking assemblies, castings
High-precision gears, racks, couplings
Custom-designed special non-standard products based on customer requirements