Dingtai manufactures Doosan bulldozer track chain assemblies, serving as the critical link system that transfers machine weight and drive torque to the ground.
We supply factory-direct track chain assemblies with full OEM manufacturing services, supporting North American dealers and fleet procurement managers requiring bulk, repeatable quality.
Our track chains resist elongation, pin wear, and bushing fatigue, minimizing unplanned downtime and extending undercarriage life in abrasive site conditions.
With over 20 years of heavy machinery undercarriage experience, we hold ISO9001 and SGS certifications, validating consistent steel chemistry and dimensional accuracy.
Each assembly uses 35MnB steel, precision forging, and deep quenching to achieve wear resistance and impact toughness across all link, pin, and bushing components.
Core Selling Points
- Premium 35MnB Material: Forged from 35MnB boron steel, links and bushings deliver high tensile strength, impact resistance, and long-term wear performance under heavy dozer loads.
- Deep Quenching/Heat Treatment: Controlled deep quenching creates a hardened case over a tough core, preventing surface spalling while retaining structural resistance to shock and bending stress.
- 100% QC Inspection: Every track chain assembly is dimensionally checked, hardness-tested, and visually inspected before packaging, ensuring zero-defect delivery for critical fleet operations.
- Global Brand Compatibility: Engineered to replace Doosan OEM undercarriage part numbers, our assemblies match original pitch, link width, and pin diameter for straightforward installation.
Our catalog of Doosan Bulldozer Track Chain Assembly includes various specifications, fully compatible with Doosan DD80, DD100, DD130, and DD190 crawler dozers.
Why Choose Dingtai?
Production Technical Parameters
| Parameter | Specification |
|---|---|
| Material | 35MnB boron steel |
| Track Chain Type | Sealed and lubricated (SALT) |
| Link / Shoe Pitch | OEM standard / custom |
| Surface Hardness | HRC 52–58 links, pins, bushings |
| Heat Treatment | Deep quench and temper |
| Forging Process | Precision hot forging |
| Certification | ISO9001:2015, SGS |
| Warranty | 12 months / 1,500 hours |
OEM & Customization
We match OEM drawings, pitch dimensions, and part numbers exactly. Custom lengths, master links, and packaging are available for Doosan replacement applications.
Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Crawler Dozer | Doosan | DD80, DD100, DD130, DD190 |
Delivery & Logistics
We ship from Xiamen and Shanghai ports with standard export packaging. Factory-direct pricing and low MOQ support urgent site requirements and scheduled fleet replacement programs.
Technical Features
Sealed and lubricated track design uses polyurethane or Viton floating seals to retain oil around pins and bushings, reducing internal wear and extending service intervals.
Bimetallic bushings combine a hardened outer layer with a softer inner surface, optimizing contact stress distribution and preventing premature pin galling under high load.
Precision-forged links maintain consistent pitch accuracy across the full chain, reducing track pitch extension and ensuring smooth sprocket engagement.
Applications
- Mining and quarry overburden handling
- Heavy road construction and site preparation
- Demolition and brownfield remediation
- Landfill and forestry clearing
Frequently Asked Questions
What is the minimum order quantity?
One set per specification. We support trial orders for fleet evaluation and mixed container shipments.
How long is standard delivery?
Production takes 15–25 days. Ocean transit to US ports typically adds 10–35 days depending destination.
What heat treatment depth is applied?
Case depth ranges from 4 mm to 8 mm depending on pin and bushing cross-section; core hardness remains 35–45 HRC.
Do you offer a warranty?
Yes. We provide 12 months or 1,500 operating hours against manufacturing defects, excluding normal wear and misuse.
Can you match Doosan OEM part numbers?
Yes. Provide the OEM part number or drawings, and we cross-reference it to our precision replacement assembly.
Are track shoes included with the assembly?
Track chain assemblies can be supplied with or without shoes. Specify shoe pitch and bolt pattern to ensure correct fitment.
Maintenance Guide
- Installation: Verify track sag matches OEM specifications; over-tension increases pin and bushing wear, while under-tension risks sprocket skipping.
- Inspection: Check for dry joints, leaking seals, and uneven shoe wear during routine service. Replace sections before pitch extension exceeds OEM wear limits.
- Replacement Intervals: Track chain life varies from 2,000 to 4,000 hours in abrasive conditions. Monitor bushing wear percentage and sprocket engagement before ordering replacements.
- Storage: Keep stored assemblies lubricated and protected from moisture. Rotate track chains periodically on parked machines to prevent seal set and corrosion.