Precision Power Transmission
Components & Solutions
Custom gears, sprockets, gearboxes, and CNC machined parts — engineered for reliability. 20+ years of manufacturing excellence serving customers in 50+ countries.
Why Choose GRANGIN
A nationally recognized high-tech enterprise with proven manufacturing capabilities and ISO-certified quality systems.
Engineering Excellence
Chief Engineer with 30+ years of automation expertise. Engineering team averaging 15+ years of experience. Comprehensive 3D design blueprints for every project.
Quality Assurance
ISO 9001, 45001, 14001 certified. 25+ dedicated QC professionals. Three-stage manual inspection process. Coordinate measuring machines and gear profile testers.
Rapid Response
12-hour guaranteed response for all inquiries. Priority fast-track for urgent orders. Optimized production scheduling. Export-grade packaging for safe delivery.
Custom Manufacturing
Full OEM/ODM support with 35+ materials. CNC machining, laser cutting, sheet metal fabrication. One-to-one design solutions tailored to your exact specifications.
Product Categories
Comprehensive range of power transmission components and custom manufacturing services.
Our Journey
Manufacturing experience since 2005. Global service through Ceten.
Ceten is Guangjin's overseas service platform — bringing 20 years of manufacturing expertise in gearboxes, gear motors, gears, sprockets, shafts, and precision machined parts to customers worldwide.
Manufacturing Since 2005
10,000㎡ modern facility with 25,000+ pieces monthly output.
Supported by Guangjin
National High-Tech Enterprise. ISO 9001, 45001, 14001 certified.
Built for Global Customers
50+ countries served. OEM & customized solutions with fast technical support.
See Our Factory in Action
Take a virtual tour of our 10,000㎡ advanced manufacturing facility. See how precision components are made from raw material to finished product.
Industries We Serve
Reliable power transmission solutions for diverse industrial applications worldwide.
Trusted by Customers Worldwide
Multi-awarded as "Integrity Enterprise" and "Grade-A Taxpayer" by authorities.
"GRANGIN has been our trusted partner for custom transmission components. Consistent quality and highly professional engineering support."
Peter Schneider
Germany
"We source sprockets and chains from GRANGIN. Fast delivery, competitive pricing, and excellent customer service."
William Jones
United Kingdom
"Outstanding CNC machining capabilities. Complex custom parts delivered with precision and on schedule."
Thomas Schmidt
Germany
"Our go-to supplier for power transmission. One-to-one design solutions and rigorous quality control."
Juan García
Spain
Latest Insights
Technical guides and industry updates from our engineering team.
Start Your Project Today
Send us your drawings or specifications. Our engineering team responds within 12 hours with a tailored solution and 3D design blueprint.