Dingtai manufactures Volvo track adjust assemblies, the hydraulic tensioning units that maintain correct track tension and absorb undercarriage shock loads.
We provide factory-direct manufacturing with full OEM services, supplying complete assemblies or individual components for global distribution and fleet maintenance.
This assembly prevents track derailment and premature component wear by delivering stable tension, reducing downtime in abrasive, high-impact site conditions.
With 20+ years of expertise and ISO9001/SGS certifications, we deliver consistent quality for critical undercarriage components to global procurement professionals.
We use 35MnB steel, deep quenching, and precision-machined components to produce assemblies that withstand high pressures and extended service intervals.
Core Selling Points
- Global Brand Compatibility: Direct-fit replacements for Volvo excavator series, cross-referencing OEM part numbers to ensure correct mounting, pressure, stroke, and hydraulic fitment specifications.
- Premium 35MnB Material: Our cylinders use 35MnB steel for higher tensile strength and fatigue resistance compared to standard carbon steel in demanding applications.
- Deep Quenching/Heat Treatment: Induction hardening and deep case quenching achieve 50-55 HRC, reducing piston rod wear and extending service life under high loads.
- 100% QC Inspection: Every assembly undergoes dimensional checks, pressure testing, and seal verification before packing, ensuring zero-defect delivery to your site every time.
Product Catalog
Our catalog of Volvo Track Adjust Assemblies includes various specifications, fully compatible with Volvo excavators and crawler equipment.
Why Choose Dingtai?
Production Technical Parameters
| Specification | Detail |
|---|---|
| Material | 35MnB steel cylinder, chrome-plated induction-hardened rod |
| Hardness | 50–55 HRC rod surface, 40–45 HRC barrel bore |
| Process | Precision machining, deep case quenching, hard chrome plating |
| Certification | ISO9001:2015, SGS |
| Warranty | 12 months / 2,000 operating hours |
OEM & Customization
We match original drawings and samples, customizing stroke length, mounting dimensions, and hydraulic port positions to exact OEM fitment standards.
Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Crawler Excavator | Volvo | EC210, EC240, EC290 |
| Heavy-Duty Excavator | Volvo | EC360, EC460, EC700, EC950 |
Delivery & Logistics
Factory-direct pricing, flexible MOQs, and export-grade packaging. Standard orders reliably ship within 15–30 days via sea or air freight globally.
Technical Features
Each assembly uses chrome-plated induction-hardened piston rod paired with double-lip seals to prevent oil bypass during repeated cyclic shock loading.
Forged yokes and precision-bored cylinders maintain exact alignment, preventing side-load wear on seals and ensuring smooth extension under variable tension.
Heat treatment penetrates 2-4 mm on wear surfaces, creating a hard outer case with a ductile core that resists cracking under impact.
Applications
- Mining
- Road Construction
- Quarrying
- Demolition
- Forestry
Frequently Asked Questions
What is the minimum order quantity?
Sample orders start at 1–5 units. Bulk orders benefit from tiered factory-direct pricing.
What is the typical delivery time?
Standard Volvo track adjust assemblies ship within 15–30 days. Customized units may require 30–45 days.
Do you match original Volvo part numbers?
Yes, we cross-reference OEM part numbers and manufacture to exact fitting and performance specifications.
What materials are used in the assembly?
We use 35MnB steel for cylinder bodies and induction-hardened, chrome-plated rods for wear resistance.
What heat treatment depth can we expect?
Hardness reaches 50–55 HRC on wear surfaces, with case depths of 2–4 mm depending on component.
What warranty policy applies?
We provide 12 months or 2,000 operating hours covering material and manufacturing defects under normal conditions.
Can you supply assemblies for older Volvo models?
Yes, send your model, serial number, or drawings, and we will reverse-engineer or follow OEM specifications.
Maintenance Guide
- Installation: Purge air from cylinder and align idler yoke with frame rails before final tightening to prevent side-load stress.
- Inspection: Check rod surfaces for scoring, pitting, or oil weepage every 500 operating hours.
- Signs of wear: Frequent tension loss, visible oil residue, or uneven idler wear indicate internal seal leakage.
- Replacement: Replace the complete assembly when pressure cannot maintain tension or when threads show permanent deformation.