Dingtai manufactures JCB sprockets as precision-forged undercarriage components that transfer drive motor power to track chains for reliable machine travel.
We operate factory-direct with full OEM manufacturing services, supplying JCB-compatible sprockets to heavy equipment distributors, dealers, and construction fleets worldwide.
Our sprockets resist premature tooth wear and pitch elongation, reducing track chain skidding, downtime, and expensive undercarriage rebuilds on JCB excavators.
With over 20 years of heavy machinery parts production, Dingtai holds ISO9001 and SGS certifications, ensuring repeatable quality and dimensional accuracy.
Sprocket blanks use 35MnB alloy steel and deep induction hardening to achieve high surface hardness, extending service life in abrasive conditions.
Core Selling Points
- Premium 35MnB Material: Sprocket bodies are forged from 35MnB alloy steel for higher core strength and resistance to impact and fatigue under heavy JCB excavator workloads.
- Deep Quenching/Heat Treatment: Induction hardened tooth surfaces reach HRC 50-55 with uniform depth, delivering superior wear life against abrasive sand, rock, and clay.
- Precision Forging/Casting: Teeth are CNC-machined after precision forging to ensure exact pitch and profile, reducing uneven load distribution and track chain vibration.
- ISO9001/SGS Certified: Every batch follows ISO9001-controlled processes and SGS material testing, giving procurement teams documented quality assurance and complete traceability for every shipment.
Our catalog of JCB Sprocket includes various specifications, fully compatible with JCB excavators and bulldozers.
Why Choose Dingtai?
1. Production Technical Parameters
| Parameter | Specification |
|---|---|
| Material | 35MnB alloy steel (forged blank) |
| Surface Hardness | HRC 50-55 |
| Heat Treatment Depth | 4-8 mm induction hardened layer |
| Manufacturing Process | Precision forging + CNC machining + induction hardening |
| Certification | ISO9001 / SGS |
| Warranty | 12 months or 2,000 working hours |
2. OEM & Customization
We produce JCB sprockets from customer drawings or sample dimensions, matching OEM tooth profile, pitch, bolt pattern, and heat treatment requirements.
3. Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Mini Excavator | JCB | 8018, 8025, 8030, 8040, 8055, 8060 |
| Crawler Excavator | JCB | JS130, JS160, JS200, JS220, JS260 |
| Crawler Excavator | JCB | JS300, JS330, JS360 |
| Compact Track Loader | JCB | 190T, 205T, 225T, 260T |
4. Delivery & Logistics
We offer factory-direct pricing, flexible MOQ, and reliable sea/air/express shipping. Standard sprockets ship in 7-15 days; custom orders ship within 25-35 days.
Technical Features
Tooth profile is precision-machined to match JCB track chain pitch, ensuring smooth engagement and reduced impact loading on track pins and bushings.
Induction hardening creates a hard martensitic surface layer while retaining a tough core, preventing tooth cracking and heavy abrasive wear.
Bolt holes and seating faces are machined to OEM tolerances, allowing direct replacement without shimming or field modification.
Applications
- Mining
- Road Construction
- Quarrying
- Demolition
- Utility Excavation
- Site Development
- Landscaping
- Material Handling
Frequently Asked Questions
Q1: What is the minimum order quantity for JCB sprockets?
A: Stock sprockets have an MOQ of 1 piece; mixed models are accepted. Custom production MOQ depends on forging batch size.
Q2: What is the delivery time?
A: Stock items ship in 7-15 days. Custom-manufactured sprockets normally take 25-35 days after drawing confirmation.
Q3: What material and hardness do you use?
A: We use 35MnB alloy steel. Tooth surface hardness is HRC 50-55 with induction hardening depth of 4-8 mm.
Q4: What warranty is provided?
A: We provide a 12-month or 2,000-working-hour warranty against material and manufacturing defects under normal operating conditions.
Q5: Can you match JCB OEM part numbers?
A: Yes. Send the JCB part number or a dimensional drawing; we cross-reference and produce an exact-fit sprocket.
Q6: Do you offer samples?
A: Stock samples are available for evaluation. Custom samples require tooling setup cost, which is refundable on bulk orders.
Q7: Are these sprockets compatible with aftermarket track chains?
A: Yes, our sprockets are machined to standard JCB pitch and bolt pattern, allowing interchange with OEM and quality aftermarket chains.
Maintenance Guide
- Inspect sprocket teeth every 500 operating hours for hooked, sharp, or worn profiles. Replace before severe tooth deformation occurs.
- Check track chain pitch elongation. Replace sprockets when chain elongation exceeds 3% to prevent irregular tooth wear and track vibration.
- Always replace sprockets together with worn track chains to maintain even load distribution across all undercarriage components.
- Tighten sprocket bolts to OEM torque values and use thread locking compound during installation to prevent loosening.
- Maintain correct track tension. Over-tensioning accelerates sprocket and chain wear, while loose tracks can cause tooth skipping.