Bulldozer & Excavator Undercarriage Prats Professional Suppliers in China
Quanzhou STST Undercarriage Parts Factory boasts a professional team covering production, R&D and international trade. All frontline production workers have over 5 years of industry working experience. Our R&D department includes 2 Japanese designers and 5 engineers with professional design experience from original equipment manufacturers.
Our foreign trade staff are proficient in English, Japanese, Spanish, Russian and Thai. We offer 24-hour global service, delivering accurate quotations and timely after-sales support to customers worldwide.

STST Machinery Factory which was founded in 2006 has specialized in undercarriage parts for construction machinery from the very beginning. Our core mission is supplying premium spare parts for excavators, bulldozers, motor graders and agricultural machinery to customers worldwide, enabling Chinese manufacturing to become a vital force in the global construction machinery industry.
From our early days, we have enforced stringent quality control and invested heavily in development, focusing on undercarriage components including track rollers, idlers, sprocket, carrier rollers and track chain assemblies. Through years of dedicated development, our products are now exported to 53 countries and regions.
We have built a comprehensive export supply chain system, established overseas offices in Nigeria, Brazil, Thailand, Russia and Egypt to serve local markets, and assembled professional foreign trade and marketing teams. With integrated domestic and overseas operations, we keep steadily expanding our footprint in the global construction machinery spare parts market.
We provide one-stop service for construction machinery undercarriage spare parts. Our multilingual team is available around the clock to answer inquiries, confirm part specifications and offer prompt accurate quotations.
We handle in-house production, strict quality inspection, logistics arrangement and export procedures. Besides, we offer order tracking, technical guidance and after-sales support to deliver reliable purchasing experience for global customers.
