Dingtai manufactures forged Mitsubishi U-Yokes, the structural link between the track adjuster cylinder and idler assembly in excavator undercarriage systems.
We operate as a factory-direct manufacturer, providing complete OEM replacement services for global equipment distributors and mining fleet procurement teams.
Our U-Yokes eliminate premature cracking and deformation, reducing unplanned downtime on Mitsubishi excavators operating in severe rock and abrasive soil conditions.
With over 20 years of heavy machinery component experience, Dingtai maintains ISO9001 and SGS certified production lines for consistent export quality.
Each unit is precision forged from 35MnB steel and heat-treated to achieve high surface hardness while retaining a ductile core.
Core Selling Points
- Premium 35MnB Material: Forged from 35MnB alloy steel, providing higher tensile strength and impact resistance than standard carbon steel yokes.
- Precision Forging: Precision forging ensures accurate dimensional tolerance and eliminates internal porosity, critical for high-load undercarriage stress.
- 100% QC Inspection: Every U-Yoke undergoes dimensional checks and hardness testing before shipment, ensuring zero-defect delivery for critical parts.
- Global Brand Compatibility: Manufactured to match Mitsubishi OEM drawings and mounting patterns, ensuring direct installation without field modification.
Product Grid
Our catalog of Mitsubishi U-Yokes includes various specifications, fully compatible with Mitsubishi excavators and bulldozers.
Why Choose Dingtai?
Production Technical Parameters
| Parameter | Specification |
|---|---|
| Material | 35MnB alloy steel |
| Surface Hardness | HRC 50-55 |
| Core Hardness | HRC 25-35 |
| Manufacturing Process | Hot forging, CNC machining, deep quenching |
| Certification | ISO9001, SGS |
| Warranty | 12 months against manufacturing defects |
OEM & Customization
Send OEM part numbers or drawings. We custom-match bore spacing, pin diameter, and mounting dimensions to original Mitsubishi specifications with strict tolerance control.
Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Medium/Large Excavator | Mitsubishi | MS180, MS230, MS280 |
| Small Excavator | Mitsubishi | ME35, ME50, MG40 |
| Bulldozer | Mitsubishi | BD2G, BS3F |
Delivery & Logistics
Factory-direct pricing is available with flexible MOQ from 10 units. Standard export packing and reliable ocean freight ensure on-time delivery to US ports.
Technical Features
Forged grain flow follows the U-Yoke contour, distributing track tension stress evenly and preventing crack initiation at sharp corners.
CNC-machined pin bores maintain precise alignment with the adjuster cylinder rod, eliminating uneven wear and extending idler bearing life.
Deep quenching creates a hardened surface layer over a ductile core, providing resistance to abrasive wear and heavy impact loads simultaneously.
Applications
- Mining: High-impact undercarriage loading in ore and overburden extraction.
- Road Construction: Continuous operation on abrasive asphalt millings and compacted aggregate.
- Quarrying: Severe rock abrasion and shock loading in bench excavation.
- Demolition: Frequent track tension fluctuations in high-vibration breaking work.
- Heavy Civil Earthmoving: Long-distance travel on mixed soils requiring stable track adjustment.
Frequently Asked Questions
Q: What is the minimum order quantity for Mitsubishi U-Yokes?
A: Standard MOQ is 10 units. First-time customers may order 5 trial units for quality verification.
Q: What is the standard delivery time?
A: Stock dimensions ship in 15-20 days. Custom production requires 25-30 days after drawing confirmation.
Q: How deep is the heat treatment on the U-Yoke?
A: Surface quenching depth is 8-12 mm on high-wear contact areas, achieving HRC 50-55.
Q: Do you offer a warranty?
A: We provide a 12-month warranty against manufacturing defects under normal operating conditions.
Q: Can you match a specific Mitsubishi OEM part number?
A: Yes. Send the OEM part number or dimension drawing. Our engineers verify material and tolerances before quotation.
Q: Are these U-Yokes suitable for mining applications?
A: Yes. The forged 35MnB construction is specifically designed for high-impact and abrasive mining conditions.
Q: Do you provide samples before bulk production?
A: Yes, sample units can be supplied for dimensional verification; sample freight is customer-paid.
Maintenance Guide
- Before installation, verify pin bore diameter and center spacing against OEM specifications to ensure proper alignment.
- Apply molybdenum disulfide grease to all pin contact surfaces to reduce friction and prevent galling during start-up.
- Inspect the U-Yoke every 500 operating hours for cracks, deformation, or signs of bore elongation.
- Replace the yoke immediately if bore wear exceeds 0.3 mm or surface cracks appear on load-bearing sections.
- Always install new pins and bushings together with the U-Yoke to maintain balanced track tension and component life.