The Caterpillar Track Adjust Assembly is a hydraulic tensioner that maintains precise track sag, preventing derailment and reducing undercarriage wear during operation.
Dingtai provides factory-direct supply with comprehensive OEM manufacturing, delivering precise, drop-in replacements for Caterpillar machinery worldwide.
Faulty or seized adjusters cause uneven track tension, accelerating pin, bushing, and sprocket wear, leading to unexpected downtime in severe applications.
With over 20 years of heavy-equipment manufacturing and ISO9001/SGS certifications, Dingtai ensures each assembly meets rigorous durability and fatigue-life standards.
Forged steel cylinder bodies and induction-hardened chrome-plated rods provide exceptional fatigue resistance and leak-free performance under extreme shock loads.
Core Strengths
- 20+ Years Experience: Decades of specialized track component engineering ensure reliable, field-proven assemblies that withstand demanding construction and mining cycles.
- Global Brand Compatibility: Manufactured to match Caterpillar part numbers such as 6I-6609 and 177-4675, guaranteeing perfect fit and interchangeability with OEM tracks.
- Deep Quenching/Heat Treatment: Piston rods and spring components undergo induction hardening and tempering, achieving surface hardness above HRC 50 for extended service life.
- ISO9001/SGS Certified: Strict quality management and third-party SGS testing verify dimensional accuracy, seal integrity, and pressure-holding performance.
Product Catalog
Our catalog of Caterpillar Track Adjust Assembly includes multiple stroke lengths and spring configurations, fully compatible with Caterpillar excavators and bulldozers.
Why Choose Dingtai?
1. Production Technical Parameters
| Parameter | Specification |
|---|---|
| Material | Cylinder: 45# seamless steel (hard chrome plated); Rod: 40Cr; Spring: 60Si2Mn |
| Hardness | Rod surface HRC 50–55; case depth 1.5–2.5mm |
| Manufacturing Process | Forging, precision machining, induction hardening, chrome plating, 100% assembly pressure test |
| Certification | ISO 9001:2015, SGS |
| Warranty | 12 months or 2,000 operating hours |
2. OEM & Customization
We replicate any Caterpillar track adjust assembly from sample or drawing, ensuring precise dimensional interchangeability and strict adherence to OEM standards.
3. Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Excavators | Caterpillar | 320B/C/D, 324D, 325D, 329D, 330D, 336D/E/F, 349D, 390F |
| Bulldozers | Caterpillar | D6H/R/T, D7R, D8R/T, D9R |
4. Delivery & Logistics
We ship FOB Xiamen to major US ports with factory-direct pricing; minimum order just 1 unit for standard assemblies and flexible trial quantities.
Technical Features
The grease-adjustable cylinder pushes the idler forward to tension the track; a high-pressure seal system prevents leakage and dirt entry.
An integrated relief valve automatically releases excess pressure, safeguarding the idler, link rails, and final drive from over-tensioning damage.
The heavy-duty recoil spring compresses when the track encounters obstacles, absorbing impact energy and returning the idler to its preset tension immediately.
Applications
- Mining
- Quarrying
- Road Construction
- Heavy Earthmoving
- Forestry
- Demolition
Frequently Asked Questions
Q: What is the minimum order quantity for Caterpillar track adjust assemblies?
A: MOQ is 1 unit for standard models. Custom designs may require a small batch of 5 pieces for initial production.
Q: How long does delivery to the United States take?
A: Standard assemblies ship within 15–20 days, plus 25–35 days ocean transit. Custom orders require 30–45 days production.
Q: Do your adjusters match specific Caterpillar part numbers?
A: Yes, we produce direct replacements for part numbers like 6I-6609, 7Y-2958, 177-4675, and many others, ensuring full bolt-in compatibility.
Q: What heat treatment depth is applied to the piston rod?
A: Induction hardening creates a case depth of 1.5–2.5 mm on the 40Cr rod, achieving HRC 50–55 for maximum wear resistance.
Q: What warranty terms do you offer?
A: We provide a 12-month or 2,000-hour warranty against material and manufacturing defects under normal working conditions.
Maintenance Guide
- Check track sag daily and maintain the manufacturer’s recommended specification; adjust grease pressure through the fitting.
- Inspect the relief valve operation periodically to ensure it vents at the correct pressure, preventing overload.
- Look for grease leaks around the wiper seal and rod, indicating seal failure and the need for immediate rebuild.
- Clean the grease fitting thoroughly before pumping to prevent debris from entering the hydraulic chamber.
- Replace the entire assembly if the cylinder is scored or the spring shows permanent set beyond 10% of free length.