Strict Quality
Advanced production equipment, improve the detection technology, strict management, We guarantee product quality.
From purchasing raw materials to product development, processing, testing, packaging, product delivery and acceptance of the entire production process, strict implementation of quality management system in accordance with international standards.
Single flange track rollers are designed for standard excavators operating on flat or moderately uneven terrain. They allow slight lateral track movement, reducing stress on the undercarriage frame.
Double flange track rollers have flanges on both sides, providing maximum lateral guidance. They are recommended for:
📌 Qiansheng recommendation: For most 20-30 ton excavators, we recommend double flange on the outer positions and single flange on inner positions for optimal balance.
Standard MOQ: 50 pieces per part number (mix models accepted).
OEM logo MOQ: 200 pieces per part number for laser engraving or casting with your brand.
Sample order: 1-5 pieces available for quality testing – we can ship via DHL/FedEx within 7 days.
📌 For distributors signing annual contracts, MOQ can be reduced to 30 pieces per shipment. Contact us to discuss your volume.
5 warning signs of a failing track adjuster grease cylinder:
📌 Preventive tip: Replace grease cylinders every 4,000-5,000 operating hours or immediately when leakage is detected to avoid track chain and sprocket damage.
Our 3-stage heat treatment process ensures maximum wear resistance:
📌 Quality guarantee: We perform hardness testing on every batch using a Rockwell hardness tester. Test reports are available upon request.
Yes, we provide a tiered warranty structure:
📌 What's covered: Material defects, seal failure, premature wear due to improper heat treatment. Normal wear and tear from abrasive materials is excluded.
Yes, sample orders are welcome.
Sample process:
📌 Free sample policy: For first-time customers ordering 200+ pieces, we ship up to 2 samples free of charge (excludes freight).
Lead times by order type:
📌 Express option: Add 15% rush fee for 50% lead time reduction (subject to production schedule).
To identify the correct track roller, provide us with ONE of the following:
📌 Quick tip: Most 20-25 ton excavators use 6-7 bottom rollers per side. Count yours and send us the number for cross-reference.
Quanzhou Qiansheng Heavy Industry Machinery Co., Ltd. is located in Quanzhou, Fujian Province, China, a well-known manufacturing base for construction machinery parts. Since its establishment, the company has been focusing on the production and supply of undercarriage parts for excavators and bulldozers.
At the early stage, we mainly focused on the domestic market and accumulated solid experience in manufacturing undercarriage components such as track rollers, carrier rollers, idlers, sprockets, and track chains. With continuous improvement in product quality and production technology, our company gradually expanded into the international market.
Undercarriage parts factory
Product Quality Guaranteed
Quality Certification
Processing Method
As a leading domestic manufacturer of diesel engines in China, Yuchai offers a full line of excavator engines covering working requirements from mini to heavy-duty applications, which are widely deployed across various construction machinery scenarios.
Quanzhou Qiansheng Heavy Industry Machinery Co., Ltd. is proud to announce that our factory has recently obtained the ISO 9001 Quality Management System certification. This achievement reflects our continuous commitment to high-quality manufacturing, strict quality control, and professional management.
Recently, a group of overseas clients from Southeast Asia visited Quanzhou Qiansheng Heavy Industry Machinery Co., Ltd. to inspect our factory and production lines. The clients were particularly interested in our “Four Wheels and One Track” system, including track rollers, idlers, sprockets, and chains.
Quanzhou Qiansheng Heavy Industry Machinery Co., Ltd. is proud to announce the launch of its new wear-resistant track rollers, designed to enhance the efficiency and lifespan of excavators and bulldozers in mining, quarry, and heavy-duty construction applications.
Quanzhou Qiansheng Heavy Industry Machinery Co., Ltd. recently participated in the Bauma China exhibition in Shanghai, one of the world’s leading construction machinery trade shows. During the exhibition, we showcased our latest undercarriage parts for excavators and bulldozers, including track rollers, carrier rollers, idlers, sprockets, and track chains.
