We manufacture heavy-duty Liebherr sprockets that drive track chains and transfer traction force in excavator and bulldozer undercarriage systems.
Factory-direct production with full OEM services, custom drawings, and private labeling supports global distributors and equipment owners directly.
Precision-hardened teeth resist abrasive wear, reduce track chain skip, and prevent premature undercarriage downtime in demanding site conditions.
With over 20 years of engineering experience and ISO9001/SGS-certified processes, Dingtai delivers consistent quality for heavy machinery fleets.
Premium 35MnB steel, CNC tooth profiling, and deep induction hardening produce a sprocket that withstands extreme loads and long service intervals.
Core Selling Points
- Premium 35MnB Material: Forged 35MnB steel provides high tensile strength and impact resistance, extending sprocket life under severe shock loads and abrasive conditions.
- Deep Quenching/Heat Treatment: Tooth surface induction hardening reaches optimal HRC depth, ensuring wear resistance without compromising core toughness or causing brittle fracture.
- Precision Forging/Casting: Precision-forged or high-strength cast blanks deliver accurate tooth profile, bolt circle, and hub dimensions for direct Liebherr OEM fit.
- 100% QC Inspection: Every sprocket undergoes dimensional checks, hardness testing, and tooth profile verification before shipment to guarantee consistent OEM-grade performance.
Product Range
Our catalog of Liebherr sprocket includes various specifications, fully compatible with Liebherr excavators and bulldozers.
Why Choose Dingtai?
Production Technical Parameters
| Parameter | Specification |
|---|---|
| Material | 35MnB / 40MnB alloy steel |
| Hardness | HRC 48–55 tooth surface, tough core retained |
| Heat Treatment | Deep induction hardening + tempering |
| Manufacturing Process | Precision forging/casting, CNC finish machining |
| Certification | ISO9001, SGS |
| Warranty | 12 months / 2,000 operating hours |
OEM & Customization
We match customer drawings, logo, tooth count, bolt pattern, and hub dimensions to OEM standards, ensuring seamless installation on original Liebherr undercarriages.
Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Excavator | Liebherr | R 914, R 924, R 934, R 944, R 954, R 964, R 976 |
| Dozer | Liebherr | PR 724, PR 734, PR 744, PR 754, PR 764 |
| Mining Excavator | Liebherr | R 9100, R 9150, R 9200 (customized) |
Delivery & Logistics
We offer factory-direct pricing, low trial MOQ, and reliable sea, air, or express shipping; standard models ship within 15–30 days after order confirmation.
Technical Features
Sprocket teeth are CNC-profiled to match track pitch precisely, reducing uneven link loading and extending both chain and sprocket service life.
Induction hardening creates a martensitic tooth surface with HRC 48–55 while retaining a tough, ductile core to resist impact and fatigue cracking.
Bolt holes and hub faces are finish-machined after heat treatment to maintain mounting accuracy and prevent vibration-induced loosening.
Applications
- Mining and quarrying: abrasive rock loading and hauling.
- Road construction: grading, trenching, and compacted soil earthmoving.
- Heavy civil earthmoving: bulk excavation and site preparation.
- Demolition and material handling: high-impact tracked equipment operations.
Frequently Asked Questions
- What is the MOQ for Liebherr sprockets?
- Trial orders start from 1–2 pieces for standard models. Mixed model orders are accepted; container quantities receive bulk pricing.
- How long is delivery?
- Standard sprockets ship in 15–30 days. Customized or high-volume orders generally require 30–45 days depending on production schedule.
- What heat treatment depth do you achieve?
- Tooth surface hardening depth typically reaches 4–8 mm depending on tooth size, with HRC 48–55 surface hardness.
- What is your warranty policy?
- We provide a 12-month or 2,000-hour warranty against material and manufacturing defects under normal operating conditions.
- Can you match my existing Liebherr part number?
- Yes. Send the OEM part number, drawings, or photos with dimensions; we verify and produce to the correct specification.
- Are your sprockets forged or cast?
- We produce both precision forged and high-strength cast sprockets according to model requirements and customer preference.
- Do you offer samples?
- Yes. Sample orders are available for standard models; custom samples require tooling confirmation and production setup.
Maintenance Guide
- Inspect new sprocket tooth profile and bolt hole pattern against track pitch and hub before mounting.
- Tighten mounting bolts to OEM torque specifications, then recheck after 50 operating hours to prevent loosening.
- Inspect tooth tips monthly; replace sprockets when teeth become hooked, pointed, or heavily worn to avoid track link damage.
- Remove packed debris from sprocket roots regularly to reduce abrasive wear and prevent premature track pitch elongation.
- Replace sprockets together with chains when chain elongation exceeds OEM limits to maintain correct engagement and load distribution.