Dingtai manufactures complete Caterpillar bulldozer track chain assemblies, transferring drive power and supporting machine weight across links, pins, and bushings.
We operate factory-direct with full OEM manufacturing services, supplying replacement track chain assemblies to distributors and fleet owners across global markets.
Our heat-treated assemblies resist elongation, bushing wear, and link cracking, reducing unplanned downtime and extending undercarriage service intervals in abrasive conditions.
With over 20 years of undercarriage manufacturing experience and ISO9001/SGS-certified processes, we deliver repeatable quality for demanding Caterpillar applications.
We use 35MnB steel and deep induction quenching to achieve high surface hardness, ensuring long service life under heavy bulldozer loads.
Core Selling Points
- Premium 35MnB Material: Track links, pins, and bushings are forged from 35MnB steel, providing high tensile strength and resistance to impact fatigue.
- Deep Quenching/Heat Treatment: All wear surfaces undergo deep induction quenching to HRC 50–58, delivering consistent hardness and extended service life.
- OEM Capabilities: We manufacture to Caterpillar OEM drawings and specifications, supporting custom branding, packaging, and part number matching requirements.
- 100% QC Inspection: Each assembly passes dimensional, hardness, and assembly clearance checks, with full inspection reports available before shipment.
Our catalog of Caterpillar Bulldozer Track Chain Assembly includes various specifications, fully compatible with Caterpillar D3–D11 bulldozers and track-type tractors.
Why Choose Dingtai?
1. Production Technical Parameters
| Parameter | Specification |
|---|---|
| Material | 35MnB / 40Mn2 alloy steel |
| Hardness | HRC 50–58 on wear surfaces |
| Process | Precision forging, deep induction quenching, tempering |
| Certification | ISO9001 / SGS |
| Warranty | 12 months or 2,000 operating hours |
2. OEM & Customization
We match Caterpillar OEM drawings and part numbers, customizing pitch, link height, and bushing dimensions to your exact undercarriage requirements.
3. Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Bulldozer | Caterpillar | D3C, D4D, D5M, D6R, D7G, D8T, D9R, D10T, D11 |
| Track Loader | Caterpillar | 953, 963, 973 |
| Pipelayer | Caterpillar | 572R, 583T |
4. Delivery & Logistics
We ship factory-direct from Quanzhou with reliable sea freight, flexible order quantities, and standard export packaging to North America, Australia, and global markets.
Technical Features
Our sealed track chain assemblies use polyurethane or rubber seals and oil-filled pin-to-bushing joints, preventing internal wear and reducing pitch elongation.
Bushings are induction hardened and press-fitted, while links receive deep heat treatment at the rail surface to resist spalling and impact fatigue.
Precision machining of pin bores and bushing bores ensures consistent press fit, preventing oil leakage and extending track chain service life.
Applications
- Mining
- Road Construction
- Quarrying
- Heavy Civil Earthmoving
- Land Clearing
- Landfill Operations
Frequently Asked Questions
What is the minimum order quantity?
MOQ is typically 1–2 sets for standard Caterpillar models. Custom OEM orders may require 10+ sets depending on tooling and specifications.
How long is delivery?
Standard assemblies ship within 15–25 days after deposit. Custom production takes 30–45 days plus sea freight transit time.
What is the heat treatment depth?
Induction-quenched hardness depth ranges from 4–8 mm on link rails and bushing surfaces, reaching HRC 50–58.
What is the warranty policy?
We provide 12 months or 2,000 operating hours warranty against material and manufacturing defects under normal working conditions.
Can you match Caterpillar part numbers?
Yes, we cross-reference Caterpillar OEM part numbers and supply exact or equivalent assemblies per your undercarriage model and serial number.
Are these genuine Caterpillar parts?
No, we are a replacement parts manufacturer. Our assemblies meet or exceed OEM specifications but are not genuine Caterpillar parts.
Maintenance Guide
- Installation: Verify track sag and sprocket engagement before tensioning to avoid uneven pin and bushing wear.
- Inspection: Check for dry joints, leaking oil seals, and track sag every 250 operating hours.
- Replacement: Replace track chain assemblies when bushing wear exceeds 20–25% or when links show cracks.
- Tensioning: Keep proper sag as per Caterpillar manual; over-tightening accelerates chain and idler wear.