公司简介
ABOUT US
公司简介
About ShunQi Track: Heavy-Duty Undercarriage Parts Manufacturer
Direct factory manufacturing for crawler crane, bulldozer and rotary drilling rig undercarriage components used in construction, foundation engineering, mining and infrastructure projects.
Who We Are
ShunQi Track, also known as SQ Parts, is a direct manufacturer of heavy-duty undercarriage components for crawler cranes, bulldozers and rotary drilling rigs. With more than 20 years of experience in forging, casting, machining and heat treatment, we help global equipment owners and parts distributors reduce downtime with durable replacement parts.
Through our online platforms at sq-parts.com and partscrane.com, we supply aftermarket crawler crane undercarriage parts directly from our factory. Our products are designed for stable fitment, long service life and reliable performance under demanding jobsite conditions.
We are not a simple trading company. Our team supports customers with model confirmation, OEM number checking, sample measurement, material selection and production control before shipment.
Component Range and Equipment Compatibility
Our factory produces replacement undercarriage parts for a wide range of heavy equipment brands and applications. We support crawler crane, bulldozer and drilling rig models from manufacturers such as CAT, Komatsu, Hitachi, Sany, Bauer and other international equipment brands.
Equipment We Serve
Crawler Cranes: track shoes, track rollers, carrier rollers, idlers and sprockets for lifting and foundation work.
Bulldozers: wear-resistant undercarriage parts for abrasive soil, quarry and mining conditions.
Rotary Drilling Rigs: heavy-duty track components designed for high torque and unstable ground conditions.
Main Product Lines
Track shoes and crawler track pad assemblies
Track rollers, bottom rollers and carrier rollers
Front idlers, recoil springs and tensioner assemblies
Drive sprockets, segment groups and track chains
Wire rope sheaves, slewing ring bearings and custom steel parts
Manufacturing Capability and Quality Control
For crawler crane undercarriage parts, durability depends on material quality, heat treatment depth, machining accuracy and final inspection. Our production process focuses on controlled metallurgy and consistent hardness instead of low-cost, short-life replacement parts.
| Component | Typical Material | Manufacturing and Inspection Focus |
|---|---|---|
| Track Rollers / Bottom Rollers | 40Mn2 alloy steel or equivalent | Induction hardening, precision machining and sealing inspection. Rail surface hardness and case depth are controlled to improve resistance against flat spots and uneven wear. |
| Track Chains and Link Assemblies | 35Mn / 40Mn steel depending on application | Quenching and tempering for tensile strength, pin-and-bushing fitment control and dimensional inspection for smooth track movement. |
| Idlers and Sprockets | Forged or cast alloy steel | Tooth profile checking, bearing seat machining and surface hardening to support stable engagement with track chains. |
| Wire Rope Sheaves | Forged steel or cast steel | Groove profile machining, hardness testing and crack inspection for heavy lifting applications where wire rope contact accuracy is critical. |
Each production batch can be inspected through dimensional checks, hardness testing and non-destructive testing when required. For critical parts, we can provide inspection reports, photos and packing details before shipment.
How We Support B2B Buyers
International buyers need more than parts. They need correct model matching, stable lead times and reliable export handling. As an aftermarket crawler crane parts supplier, we support distributors, repair companies, fleet owners and equipment rental companies with practical sourcing solutions.
Model and part number confirmation: customers can send crane model, OEM number, old part photos or sample dimensions for checking before order.
Standard and custom production: common crawler crane track shoes, rollers, idlers and sprockets are supplied from stock or scheduled production.
Flexible replacement options: we can supply a complete track group assembly for heavy cranes or individual wear parts depending on the repair plan.
Export packing and logistics: heavy parts are packed in export wooden cases or steel pallets, with sea freight, CIF and DDP shipping options available for selected destinations.
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CRAWLER CRANE
OEM BRAND
CRAWLER CRANE
Contact Us | Wechat 
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