Dingtai manufactures heavy-duty Daewoo idlers engineered to guide track chains, maintain alignment, and support excavator undercarriage weight.
We supply factory-direct Daewoo idlers with full OEM manufacturing services, supporting distributors, rental fleets, and construction contractors across global markets.
Replacement idlers resist abrasive wear, shock loads, and misalignment, reducing track derailment risk and preventing costly excavator downtime during critical operations.
With over 20 years of engineering experience, Dingtai maintains ISO9001 and SGS certified production, ensuring consistent quality and traceability for every Daewoo idler batch.
We forge each idler from 35MnB steel and apply deep quenching heat treatment to achieve a wear-resistant tread and long service life under load.
Core Selling Points
- Premium 35MnB Material: Idler bodies are forged from high-yield 35MnB steel, providing superior impact resistance and extended structural integrity in rocky terrain.
- Deep Quenching/Heat Treatment: Tread surfaces undergo deep induction quenching to HRC 48–55, hardening the working face against abrasive earth and rock wear.
- 100% QC Inspection: Every Daewoo idler passes dimensional, hardness, and ultrasonic testing before packaging, ensuring zero-defect delivery and consistent field performance.
- OEM Capabilities: We produce OEM-standard Daewoo idlers from drawings, samples, or part numbers, matching original dimensions, tolerances, and paint finishes.
Product Range
Our catalog of Daewoo Idler includes various specifications, fully compatible with Daewoo excavators and bulldozers.
Why Choose Dingtai?
1. Production Technical Parameters
| Parameter | Specification |
|---|---|
| Material | 35MnB / 40Mn2 forged steel |
| Tread Hardness | HRC 48–55 |
| Heat Treatment Depth | 8–12 mm deep induction quenching |
| Manufacturing Process | Precision forging, CNC machining, induction hardening |
| Certification | ISO9001 / SGS |
| Warranty | 12 months / 2,000 hours |
2. OEM & Customization
We match OEM drawings, part numbers, and custom dimensions for Daewoo idlers, ensuring strict adherence to original specifications and fitment.
3. Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Crawler Excavator | Daewoo / Doosan | DH55, DH60, DH80, DH150, DH215-9, DH220-5, DH225-7, DH300-7, DH370-7, DH420-7, DH500 |
| Crawler Excavator | Daewoo | Solar 55-V, Solar 130-V, Solar 220-V, Solar 300-V |
4. Delivery & Logistics
We provide factory-direct pricing, flexible MOQs, and reliable sea or land shipping with reinforced export packaging to reduce transit damage.
Technical Features
The idler shell is precision-forged from 35MnB steel, then machined and deep-quenched to produce a HRC 48–55 tread that resists abrasive scoring.
A precision-machined bore and sealed lubrication chamber retain grease and exclude dirt, maintaining smooth rotation under continuous excavator travel.
Uniform heat treatment depth reduces spalling and deformation under shock loads, extending idler life in high-impact digging and grading applications.
Applications
- Mining
- Road Construction
- Quarrying
- Demolition
- Heavy Civil Infrastructure
Frequently Asked Questions
What is the MOQ for Daewoo idlers?
Standard MOQ is 2–4 pieces per model. Mixed models and sample orders are accepted under our flexible export policy.
How long is delivery time?
Standard Daewoo idlers ship within 15–25 days. Custom-sized or non-stock models typically require 30–35 days.
What is the heat treatment depth?
Tread surfaces are deep-quenched to 8–12 mm depth, with hardness controlled at HRC 48–55 for wear resistance.
What warranty coverage is provided?
We offer a 12-month or 2,000-hour warranty against material and workmanship defects under normal operating conditions.
Can you match OEM part numbers?
Yes. Supply your Daewoo part number, drawing, or sample, and we confirm fitment before production.
What materials are used?
Idlers are forged from 35MnB or 40Mn2 steel, selected for high tensile strength and impact toughness.
Do you accept custom dimensions?
Yes. We manufacture non-standard idlers from customer drawings with strict dimensional tolerance control.
How are idlers packaged?
Each idler is packed in reinforced wooden crates with anti-rust treatment to prevent damage during transit.
Maintenance Guide
- Inspect idler tread and flange for uneven wear, cracks, or oil leakage every 250 service hours.
- Check track tension and alignment; incorrect tension accelerates idler tread and flange wear.
- Confirm mounting bolts remain torqued to OEM specifications during scheduled maintenance intervals.
- Replace idlers when tread wear exceeds 20% or when noise, wobble, or seal leakage appears.