Detail Information

Name:	Heavy Duty Steel Excavator Track Link Assy Undercarriage Track Chains Assembly	Surface Hardness:	HRC50-56,deepth:4mm-10mm
Material:	High-strength Steel	Warranty Time:	2000 Working Hours
Surface Treatment:	Heat Treatment	Appliion:	Undercarriage For Bulldozer Or Eva
Colors:	Black Or Yellow	Technique:	Forging Or Casting
Highlight:	Heavy Duty Excavator Track Link , excavator track link Steel , Heavy Duty Undercarriage Track Chains

Product Description

Excavator and bulldozer chain assembly

1.Product Description

The Excavator/Bulldozer Track Chain Assembly (also called Undercarriage Track Chain) is a core component of the crawler drive system in heavy machinery. It consists of track links, track pins, track bushes, track shoes, and bolts, designed to support the machine’s weight and provide traction on rough terrain.

2. Product Classification

By Machine Type
- Excavator Track Chain: Lighter to medium-duty, optimized for flexibility.
- Bulldozer Track Chain: Heavy-duty construction, high impact resistance.
By Structure
- Segmented (Assembled): Replaceable individual links, cost-effective maintenance.
- Solid (One-Piece): Higher rigidity, ideal for large-scale machinery.
By Material
- Alloy Steel: Standard, excellent wear resistance.
- Quenched Steel: For extreme conditions, extends service life by 30%.

3. Core Components & Specifications

Component	Material/Process	Key Parameters
Track Link	40Mn2 Alloy Steel, Induction Hardened	Hardness HRC45-50, Tensile Strength ≥850MPa
Track Pin/Bush	20CrMnTi, Carburizing & Quenching	Surface Hardness HRC58-62, Core Hardness HRC30-35
Track Shoe	NM360 Wear-Resistant Steel, Laser-Cut	Thickness 35-70mm, Bolt Hole Tolerance ±0.1mm
Seal Kit	NBR Rubber + Metal Ring	Temp. Range -30°C~120°C, IP68 Rating

4. Technical Features

Load Capacity: Static load ≥150 tons (e.g., Caterpillar D8T).
Wear Resistance: Track link hardness ≥HB350, service life >5,000 hours (gravel conditions).
Anti-Detachment Design: Chamfered pins + interference fit, lateral displacement ≤0.5mm.
Lubrication: Long-life lithium grease, maintenance interval 200 hours.
5. Compatible Models
Excavators: CAT 320D, Komatsu PC200-8, SANY SY215, etc.
Bulldozers: Shantui SD22, XCMG DG100, Liebherr PR736, etc.
6. Selection Guide
Sandy Terrain: Wider track shoes (≥600mm) to reduce ground pressure.

Mining Applications: Quenched steel links + reinforced bushes recommended.

7. Packaging & Shipping

Wooden crates with anti-rust paper, single assembly weight: 1.2–3.5 tons (varies by model).

For further technical drawings or customized solutions, provide specific operational parameters.

Tag:

Place of Origin:	China
Brand Name:	CCJT
Certification:	ISO

Minimum Order Quantity:	100PCS
Packaging Details:	Export wooden pallets
Delivery Time:	30
Payment Terms:	T/T, L/C
Supply Ability:	10000+pc+7

Excavator and bulldozer chain assembly

Heavy Duty Excavator Track Link

excavator track link Steel

Heavy Duty Undercarriage Track Chains

2. Product Classification

3. Core Components & Specifications

4. Technical Features

5. Compatible Models

6. Selection Guide

7. Packaging & Shipping

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