Daewoo track adjust assembly is a hydraulic tensioning cylinder that maintains correct track sag and absorbs impact loads in crawler excavator undercarriages.
We operate factory-direct production with complete OEM manufacturing services, supplying replacement track adjusters to distributors and equipment fleets worldwide.
Correct tension prevents track derailment, reduces sprocket and idler wear, and eliminates costly unplanned downtime on Daewoo excavators.
With over 20 years of undercarriage manufacturing experience, Dingtai is ISO9001 certified and uses SGS-verified materials and processes for every batch.
Cylinder rods and bodies are machined from 35MnB steel and receive deep quenching, achieving high surface hardness and long service life.
Core Selling Points
- Premium 35MnB Material: Cylinder bodies and rods are forged from 35MnB alloy steel, providing high tensile strength, impact toughness, and resistance to bending under load.
- Deep Quenching/Heat Treatment: Critical friction surfaces are induction hardened and quenched to HRC 45-52, reducing scoring and extending seal life in abrasive conditions.
- ISO9001/SGS Certified: Manufacturing processes are ISO9001 certified and materials are verified by SGS, ensuring consistent quality for OEM and aftermarket supply chains.
- OEM Capabilities: We produce track adjust assemblies from customer drawings or samples, holding tight tolerances and matching original part numbers for Daewoo and Doosan models.
Product Range
Our catalog of Daewoo Track Adjust Assembly includes various specifications, fully compatible with Daewoo and Doosan excavators and bulldozers.
Why Choose Dingtai?
Production Technical Parameters
| Parameter | Specification |
|---|---|
| Material | 35MnB / 40Cr alloy steel |
| Hardness (HRC) | HRC 45–52, induction hardened depth 2–4 mm |
| Process | Precision machining, deep quenching, hard chrome plating |
| Certification | ISO9001:2015, SGS material report |
| Warranty | 12 months or 2,000 working hours |
OEM & Customization
We reverse-engineer from drawings or samples, customizing rod stroke, cylinder diameter, and mounting dimensions to match original Daewoo track adjust assemblies exactly.
Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Hydraulic Excavator | Daewoo | DH55, DH80, DH150LC-7, DH220LC-7, DH300LC-7, DH420LC-7 |
| Hydraulic Excavator | Daewoo / Doosan | Solar 55-V, Solar 130LC-V, Solar 220LC-V, Solar 300LC-V, DX140LC, DX225LC, DX300LC, DX340LC, DX420LC |
| Crawler Bulldozer | Daewoo / Doosan | DD80, DD100 |
Delivery & Logistics
Factory-direct pricing and flexible MOQ support urgent replacements. Our standard export packaging and reliable freight partners provide on-time delivery to US warehouses.
Technical Features
The assembly uses a grease-filled cylinder. Pumping grease through the fitting extends the rod, pushing the idler forward to increase track tension.
A heavy-duty recoil spring compresses under impact loads, protecting the final drive and undercarriage from shock damage.
Precision-ground rod surfaces and high-pressure seal kits prevent grease bypass, maintaining stable tension between service intervals.
Applications
- Open-pit mining and quarrying
- Road construction and site preparation
- Demolition and heavy civil works
- Forestry and pipeline right-of-way clearing
- General earthmoving and aggregate handling
Frequently Asked Questions
Q1: What is the minimum order quantity for Daewoo track adjust assemblies?
Stock replacement models have an MOQ of 1 unit. Custom OEM production generally starts at 5–10 units depending on specifications.
Q2: How long does production and delivery take?
In-stock assemblies ship within 3–7 days. Bulk production orders typically require 15–30 days, depending on quantity and customization.
Q3: What heat treatment depth do you apply?
High-wear rod and cylinder areas receive induction hardening to a depth of 2–4 mm, achieving HRC 45–52 surface hardness.
Q4: What warranty is provided?
We provide a 12-month or 2,000-working-hour warranty against material defects and manufacturing faults under normal operating conditions.
Q5: Can you match original Daewoo part numbers?
Yes. Send the OEM part number or drawings; we cross-reference dimensions and produce a direct replacement assembly.
Q6: Do you supply for both legacy Daewoo and current Doosan machines?
Yes. Coverage includes legacy DH and Solar series excavators, plus current DX series models.
Q7: Are grease fittings and seals included?
Complete assemblies include cylinder body, rod, seals, grease fitting, and recoil spring. Partial component kits are available on request.
Q8: How do I confirm the correct track adjust assembly?
Provide machine model, serial number, or existing part number. Our engineers verify stroke, mounting bore, and collapsed/extended length.
Maintenance Guide
- Before installation, clean mounting pins and bores, and inspect the yoke, spring, and grease fitting for damage or contamination.
- Pump high-pressure grease slowly until track sag reaches OEM specification, usually 20–30 mm between idler and track roller.
- Check for grease leakage around the rod and relief valve every 500 hours; replace seal kits immediately if leakage is visible.
- Replace the track adjust assembly at 4,000–6,000 hours, or earlier if scoring, bending, or pressure loss is detected.