Dingtai manufactures Hyundai bulldozer spring coils for crawler undercarriage track tensioning systems, maintaining correct track tension and absorbing high-impact shock loads.
We operate factory-direct, providing OEM and aftermarket replacement coils with custom specifications for distributors, dealers, and end users worldwide.
A fatigued or broken coil causes track misalignment, derailment, and unplanned downtime. Our coils restore stable track tension and extend idler and sprocket life.
Dingtai has over 20 years of heavy machinery component manufacturing experience, with ISO9001 and SGS certified processes ensuring consistent quality.
Each coil uses high-tensile spring steel, controlled oil quenching, tempering, and shot peening to deliver stable spring rate and long fatigue life.
Core Selling Points
- 20+ Years Experience: Two decades serving global heavy equipment fleets with proven undercarriage parts, stable metallurgical quality, and low failure rates.
- Global Brand Compatibility: Direct-fit replacement for Hyundai bulldozer spring coils, matching OEM part numbers, wire diameter, free length, and load rating.
- Deep Quenching/Heat Treatment: Oil quenching and tempering produce uniform hardness, high yield strength, and consistent spring rate under severe cyclic loading.
- 100% QC Inspection: Every coil undergoes dimensional checks, load testing, magnetic particle crack detection, and surface finish verification before shipment.
Our catalog of Hyundai Bulldozer Spring Coil includes various specifications, fully compatible with Hyundai excavators and bulldozers.
Why Choose Dingtai?
Production Technical Parameters
| Parameter | Specification |
|---|---|
| Material | High-tensile alloy spring steel: 60Si2Mn / 55CrSi |
| Heat Treatment | Oil quenching and tempering |
| Hardness | HRC 42–48 |
| Process | CNC coil forming, tempering, shot peening, magnetic particle testing |
| Certification | ISO9001 / SGS |
| Warranty | 12 months or 2,000 hours from shipment |
OEM & Customization
We match drawings or samples exactly—wire diameter, total coils, free length, and load capacity—meeting strict Hyundai OEM standards.
Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Crawler Bulldozer | Hyundai Construction Equipment | Hyundai HDF series / serial-number verified crawler dozer models |
| Track Tensioning System | Hyundai | Undercarriage spring coil assemblies; contact us with OEM part number |
Delivery & Logistics
We offer factory-direct pricing, flexible MOQ, reliable export packing, and sea/air shipping to major US ports.
Technical Features
Hyundai bulldozer spring coils are high-cycle suspension members, maintaining preset track tension and absorbing shock loads from uneven ground.
Shot peening creates compressive surface stress, delaying fatigue crack initiation and extending service life in abrasive undercarriage applications.
Controlled coiling geometry and tempering provide a stable spring rate, preventing coil bind and maintaining even load distribution on idlers and sprockets.
Applications
- Mining: Dozing in hard rock, overburden, and high-abrasion haul road maintenance.
- Road Construction: Track stability during grading, embankment, and subgrade compaction.
- Quarrying: Impact and vibration absorption in crushed stone and aggregate operations.
- Forestry: Consistent tension in debris-laden terrain with high root and stump loads.
- Demolition & Site Development: Cyclic loading and mixed-duty material handling.
Frequently Asked Questions
What is the MOQ for Hyundai bulldozer spring coils?
Standard trial order is 2–5 pieces; volume pricing starts at 50 pieces.
What is the delivery time?
In-stock specifications ship within 7–10 days. Custom production requires 25–35 days after drawing approval.
What heat treatment do you apply?
Oil quenching and tempering achieve HRC 42–48, followed by shot peening for fatigue resistance.
What is the warranty policy?
We provide 12 months or 2,000 hours from shipment against material and manufacturing defects.
Can you match an OEM part number?
Yes. Send your Hyundai part number or drawing; we confirm dimensions, spring rate, and load rating.
Do you supply material certificates?
Yes. Each batch includes heat numbers, hardness reports, and SGS/ISO-certified material traceability.
Can you customize spring dimensions or spring rate?
Yes. We adjust wire diameter, total coil count, free length, and load capacity to your sample or drawing.
Maintenance Guide
- Visual Inspection: Inspect coils for corrosion, abrasion, coil bind, or uneven coil spacing during every 500-hour service interval.
- Track Tension Adjustment: Set track sag to Hyundai specification before installing a new spring coil; incorrect preload accelerates undercarriage wear.
- Installation: Seat coil ends squarely against retainers. Never weld or heat spring steel, as this alters temper and load rating.
- Replacement Indicators: Replace when free length decreases over 3%, surface cracks appear, or chronic track derailment occurs.