Dingtai produces a full range of undercarriage components for Case bulldozers, including track rollers, idlers, sprockets and track chains. These parts support machine weight and deliver traction.
As a factory-direct supplier, we offer comprehensive OEM manufacturing services to dealers and contractors worldwide, eliminating middlemen and ensuring consistent quality control.
Our heavy-duty undercarriage parts reduce costly downtime by resisting abrasive wear and catastrophic breakage, even under extreme rock, sand and debris conditions.
With over 20 years of industry experience and ISO9001/SGS certifications, Dingtai guarantees repeatable quality that meets the demands of rigorous US procurement standards.
Forged from 35MnB alloy steel and deep induction hardened, each component achieves 50–58 HRC surface hardness, providing exceptional impact toughness and extended service life.
Core Selling Points
- Premium 35MnB Material: All track rollers, idlers and sprockets are forged from high-tensile 35MnB steel, ensuring maximum impact and fatigue resistance in severe dozer applications.
- Deep Quenching/Heat Treatment: Proprietary deep case hardening delivers a 3–6 mm wear layer at 50–58 HRC while preserving a ductile core to prevent cracking.
- Global Brand Compatibility: Direct-fit replacement for Case 450 to 1650 series bulldozers, matching OEM mounting dimensions, bolt patterns and load ratings precisely.
- OEM Capabilities: We manufacture to exact OEM specifications or custom drawings, with full laser marking, packaging and private-label services available for seamless distribution.
Our catalog of Case Bulldozers Undercarriage Parts includes various specifications, fully compatible with Case excavators and bulldozers.
Why Choose Dingtai?
1. Production Technical Parameters
| Parameter | Specification |
|---|---|
| Material | 35MnB alloy steel (equivalent to SAE 15B35) |
| Surface Hardness | 50–58 HRC |
| Heat Treatment | Deep induction hardening / quench & temper |
| Manufacturing Process | Closed-die forging, CNC machining, grinding |
| Certification | ISO9001:2015, SGS material & performance reports |
| Warranty | 12 months or 2,000 hours under normal use |
2. OEM & Customization
We reverse-engineer from samples or drawings, delivering parts that match OEM tolerances and surface finishes for seamless integration on Case equipment.
3. Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Crawler Dozer | Case Construction | 450, 550, 650, 750, 850, 1150, 1450, 1650 and others |
4. Delivery & Logistics
We offer flexible MOQs and reliable sea/air freight from China, with transparent factory-direct pricing and on-time shipments to major US ports.
Technical Features
The floating seal design in our rollers and idlers creates a permanent lubrication barrier, keeping contaminants out and oil in for lifelong track performance.
Precision forging aligns grain flow with load paths, eliminating internal voids and significantly enhancing fatigue strength over cast alternatives.
Bimetal bushings with a high-lead bronze alloy layer reduce friction and galling on the shaft, extending service intervals in high-load dozing operations.
Applications
- Mining and quarrying
- Heavy earthmoving and quarrying
- Road and highway construction
- Landfill and waste management
- Forestry and land clearing
Frequently Asked Questions
Q: What is the minimum order quantity (MOQ)?
A: MOQ typically starts at 1 set for standard undercarriage parts; custom orders may have slightly higher requirements.
Q: How long is the delivery time?
A: Standard delivery is 25–35 days. Express shipping can reduce this to 10–15 days.
Q: What is the depth and hardness of the heat treatment?
A: We achieve a surface hardness of 50–58 HRC with a hardened case depth of 3–6 mm, depending on the part.
Q: Do you offer a warranty?
A: Yes, a 12-month or 2,000-hour warranty is provided against manufacturing defects under normal operation.
Q: Can you match OEM part numbers?
A: Absolutely. We cross-reference your Case OEM numbers and ensure exact fitment on your bulldozer model.
Q: Do you provide samples for testing?
A: Sample orders are welcome. We can supply a single piece for dimensional inspection and field testing.
Q: What are the payment terms?
A: We accept T/T with 30% deposit and 70% before shipment, or L/C at sight for larger orders.
Maintenance Guide
- Inspect track tension weekly; adjust according to the operator’s manual to avoid premature roller and idler wear.
- Visually check for oil leaks around floating seals; replace seals immediately if external lubricant is visible.
- Monitor sprocket tooth wear; replace when tooth tips become sharp or pockets form, typically every 1,500–2,000 hours.
- Rotate track chains periodically to even out bushing and sprocket wear across the assembly.