Dingtai manufactures Volvo U-yokes as precision-engineered undercarriage connectors, linking the hydraulic track adjuster to the idler assembly for reliable track tension control.
We are a factory-direct supplier offering complete OEM manufacturing services, custom dimensions, and direct technical support for global Volvo equipment distributors and fleet owners.
Our U-yokes replace worn or cracked originals, preventing track misalignment, premature idler wear, and costly excavator downtime in demanding earthmoving conditions.
With over 20 years of heavy machinery part production and ISO9001/SGS certified processes, we deliver verified metallurgy and consistent dimensional accuracy.
Each Volvo U-yoke is forged from 35MnB alloy steel and deep quenched to achieve hardened contact surfaces, improving fatigue resistance under shock loads.
Core Selling Points
- Global Brand Compatibility: Precision-machined to match Volvo track adjuster and idler fork mountings, ensuring a drop-in fit across major EC series excavator models.
- Premium 35MnB Material: Forged 35MnB alloy steel provides high tensile strength and resistance to bending, cracking, and impact fatigue in harsh undercarriage applications.
- Deep Quenching/Heat Treatment: Induction hardening and controlled tempering deliver consistent surface hardness and core toughness, extending service life under repeated track tension loads.
- OEM Capabilities: We produce from original samples or drawings with custom part numbers and neutral packaging, supporting aftermarket brands and maintenance programs.
Our catalog of Volvo U-Yoke includes various specifications, fully compatible with Volvo excavators and bulldozers.
Why Choose Dingtai?
1. Production Technical Parameters
| Parameter | Specification |
|---|---|
| Material | 35MnB alloy steel |
| Hardness | HRC 50–55 on contact surfaces |
| Heat Treatment Depth | 5–8 mm induction-hardened layer |
| Process | Forged, CNC machined, induction hardened, tempered |
| Certification | ISO9001:2015, SGS |
| Warranty | 12 months or 2,000 working hours |
2. OEM & Customization
We match original drawings, custom dimensions, and strict OEM standards to guarantee exact fitment for Volvo track tensioning systems.
3. Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Hydraulic Excavator | Volvo | EC210, EC240, EC290, EC360, EC460, EC480, EC750 |
| Heavy-Duty Excavator | Volvo | EC480E, EC750E, EC950E |
| Tracked Excavator | Volvo | EC140, EC160, EC200E |
4. Delivery & Logistics
We provide reliable worldwide shipping, reinforced export packaging, factory-direct pricing, and flexible MOQ to support urgent repairs and scheduled fleet maintenance.
Technical Features
The U-yoke transfers tensile and compressive forces between the track adjuster cylinder and idler assembly, so forging orientation and grain flow are controlled to resist fatigue.
Induction-hardened pin bores and contact faces reduce wear and maintain alignment under cyclic side loading, preventing track wander and uneven rail wear.
A corrosion-resistant phosphate or painted finish protects the yoke in wet, abrasive mining and quarry environments, extending replacement intervals.
Applications
- Mining
- Road Construction
- Quarrying
- Demolition
- Infrastructure
- Forestry
Frequently Asked Questions
What is the minimum order quantity for Volvo U-yokes?
Standard MOQ is 10 units per specification. Sample orders of 1–2 units are available for first-article inspection.
What is the delivery time?
Stocked standard models ship within 7–10 days. Custom production takes 25–35 days depending on quantity and machining requirements.
What material and heat treatment are used?
We use forged 35MnB alloy steel with induction-hardened contact surfaces, typically HRC 50–55 and 5–8 mm hardened depth.
What is the warranty policy?
We provide a 12-month or 2,000-working-hour warranty against material and manufacturing defects under normal operating conditions.
Can you match my Volvo part number?
Yes. Provide the OEM part number or drawing, and we will cross-reference dimensions to supply a direct-fit replacement U-yoke.
Do you offer OEM or neutral packaging?
Yes. We offer custom part number marking, neutral packaging, and OEM branding upon request.
How do I confirm compatibility with my excavator model?
Send your Volvo machine model, serial number, and yoke measurements; our engineering team verifies fitment before order confirmation.
Maintenance Guide
- Installation: Before installation, verify pin bore diameter and center distance against the original Volvo yoke. Replace all pins and retainers if clearance exceeds 0.2 mm.
- Alignment: Mount the U-yoke squarely between track adjuster and idler fork. Misalignment causes side loading and accelerates yoke ear wear.
- Inspection Interval: Inspect every 500 working hours or monthly in abrasive conditions. Look for cracks near pin bosses or bore elongation.
- Replacement: Replace immediately if visible cracks, elongated bores, or worn contact surfaces exceed OEM limits to prevent track derailment and idler damage.