We manufacture Case track adjust assemblies, the hydraulic tensioning cylinders that maintain correct crawler track tension and alignment.
Factory-direct production supports complete OEM manufacturing services, from forging and machining to assembly, for global equipment distributors and fleet owners.
Our adjust assemblies prevent premature undercarriage wear, track derailment, and downtime caused by weak or leaking tensioners.
With over 20 years of engineering experience and ISO9001/SGS certified processes, Dingtai delivers repeatable quality under heavy operating loads.
Premium 35MnB alloy steel, deep quenching, and precision-machined sealing surfaces ensure leak-resistant, long service life in demanding conditions.
Core Selling Points
- Premium 35MnB Material: Forged 35MnB alloy steel body delivers high tensile strength and crack resistance under continuous high-pressure track tension loads.
- Deep Quenching/Heat Treatment: Induction hardening produces HRC 45–52 on cylinder bores and rods, minimizing abrasive wear and extending undercarriage component life.
- ISO9001/SGS Certified: Certified material sourcing and production processes ensure every Case track adjust assembly meets OEM tolerance, hardness, and pressure retention standards.
- 100% QC Inspection: Each completed assembly undergoes dimensional verification and high-pressure seal testing, reducing the risk of field failures and unplanned downtime.
Our catalog of Case Track Adjust Assembly includes various specifications, fully compatible with Case excavators and bulldozers.
Why Choose Dingtai?
1. Production Technical Parameters
| Parameter | Specification |
|---|---|
| Material | 35MnB alloy steel / high-strength cast steel |
| Hardness | HRC 45–52 after induction hardening |
| Process | Forging, CNC machining, deep quenching, pressure testing |
| Certification | ISO9001, SGS |
| Warranty | 12 months or 2,000 operating hours |
2. OEM & Customization
We match customer drawings, OEM part numbers, and custom stroke dimensions. Every assembly is produced to original equipment tolerances and material specifications.
3. Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Excavator | Case | CX130, CX210, CX240, CX350, CX470 |
| Dozer | Case | 650K, 750K, 850K, 1150K |
4. Delivery & Logistics
We offer flexible MOQ, factory-direct pricing, and reliable sea or air freight. Standard production lead time is 15–30 days after order confirmation.
Technical Features
The assembly uses a grease-filled cylinder and piston rod to convert hydraulic pressure into continuous track tension, preventing slack and reducing sprocket wear.
Induction-hardened 35MnB steel cylinder bodies provide high tensile strength, while precision-machined bores and high-pressure seals prevent grease bypass.
A replaceable relief valve and heavy-duty rod wiper protect internal components from contamination, extending service life in abrasive environments.
Applications
- Mining and quarrying
- Road construction
- Demolition and site clearing
- Heavy earthmoving
- Forestry and material handling
Frequently Asked Questions
- What is the minimum order quantity for Case track adjust assemblies?
Standard MOQ is 1–2 units for sample orders. Bulk order pricing starts at 5–10 units depending on part number. - How long is delivery time?
Production typically takes 15–30 days after drawing confirmation. Shipping time depends on destination and freight method. - What heat treatment depth do you achieve?
Induction hardening depth is generally 3–6 mm, reaching HRC 45–52 in high-wear areas such as the cylinder bore and rod surface. - What warranty do you provide?
We provide a 12-month or 2,000-hour warranty against manufacturing defects under normal operating conditions. - Can you match my Case OEM part number?
Yes. Send the OEM part number or drawing, and we will cross-reference dimensions, stroke, and mounting pattern. - Are seals and fittings included?
Yes, each assembly includes high-pressure seals, grease fitting, and relief valve unless specified otherwise.
Maintenance Guide
- Inspect track sag daily and adjust grease tension to OEM specification before operation. This prevents track derailment and uneven wear.
- Check the adjust assembly for grease leaks, rod scoring, or seal damage every 250 operating hours. Replace damaged seals immediately to avoid pressure loss.
- Replace complete assembly when cylinder bore wear exceeds tolerance or relief valve fails repeatedly under normal load. Delayed replacement accelerates track chain and sprocket wear.
- Use recommended lithium-based track tensioner grease to prevent internal seal damage and preserve pressure retention. Avoid mixing grease types or using high-speed power guns.