Quanzhou Haiyi Machinery - 15 years of dedication to manufacturing premium undercarriage parts for excavators and bulldozers. Supplying OEM-grade track rollers, chains, sprockets, and idlers to over 50 countries worldwide.
Top-performing undercarriage components selected for industrial buyers.
P/N: 163-4143 / 8E-5600
Heavy-duty bottom roller for CAT 320D/320E, manufactured with 40Mn2 alloy steel and deep induction hardening to deliver excellent wear resistance and stable support under severe operating conditions.
View Details
P/N: 20Y-32-00021
Premium lubricated track chain for Komatsu PC200 series, built with 40Mn2 alloy steel components and induction-hardened pin/bushing contact surfaces to maximize fatigue strength and service life.
View Details
P/N: 201-30-00090
OEM-grade carrier roller manufactured with precision-forged steel body, deep heat treatment, and premium floating seals for stable upper-track support in severe jobsite conditions.
View Details
P/N: 201-30-74120
High-load bottom track roller built with forged alloy steel shell and controlled heat treatment, designed to deliver smooth track travel and long wear life in demanding excavation work.
View Details
P/N: 9W-9652
Heavy-duty front idler assembly featuring high-strength cast body and precision-machined hub geometry, built to maintain track tension stability and improve undercarriage life.
View Details
P/N: 1018746
Wear-resistant sprocket ring manufactured with precision tooth profile and deep induction hardening for smooth chain engagement and lower drivetrain shock load.
View Details
P/N: 20Y-27-11581
Precision cast and machined sprocket ring for Komatsu PC200 class excavators, built for high tooth wear resistance and smooth torque transfer under heavy load.
View Details
P/N: 9W-9350
Complete track chain assembly produced with forged links and precision bushings, designed for superior wear resistance and longer service interval in crawler dozer operations.
View Details
P/N: 154-32-11110
Reinforced triple grouser track shoe plate manufactured from high-strength rolled steel, designed to deliver reliable traction, bending resistance, and long wear life in rough ground conditions.
View DetailsComplete undercarriage solutions for excavators, bulldozers, and heavy equipment
High wear-resistant track rollers and carrier rollers suitable for 1-100 ton excavators.
View Products →
Sealed and lubricated track chain assemblies engineered to reduce friction and extend undercarriage service life.
View Products →
Deep-hardened drive sprockets and segment groups designed for precise chain engagement and long tooth wear resistance.
View Products →
Precision-welded and machined front idler assemblies with durable floating seal systems for stable track guidance.
View Products →
Single, double, and triple grouser track shoe plates manufactured from high-strength boron steel for tough terrain conditions.
View Products →ISO-certified manufacturing with rigorous quality control. Every part undergoes hardness testing, dimensional inspection, and performance verification.
Fast delivery to North America, Europe, and worldwide. Established shipping routes ensure your parts arrive on time, every time.
Tailored manufacturing for non-standard specifications. Our engineering team can develop custom parts based on your drawings or samples.
Dedicated support team for part identification, cross-referencing, and technical consultation. We help you find the right parts fast.
Located in Quanzhou, China's heavy machinery manufacturing hub, Haiyi Machinery brings over 15 years of expertise in undercarriage components. Our factory integrates precision casting, heavy forging, advanced heat treatment, and CNC machining to ensure every part meets the highest industry standards for severe working conditions.
