KOBELCO CK2500 Crawler Crane Track Pads

The KOBELCO CK2500 crawler crane stands out in the field of heavy lifting due to its excellent crawler chassis design, and its crawler chassis features are mainly reflected in the following aspects:

• High-Strength Structural Design
  Materials and Technology
  Casting or welding by high-strength alloy steel, to ensure the crawler undercarriage parts maintain structural integrity under maximum load.
  Torsional Resistance
  The box-section beam design significantly enhances torsional stiffness, accommodating asymmetric loads in complex terrain (such as slope lifting and operations on soft ground).
• Fully Hydraulic Drive System
  Independent Track Drive
  The left and right crawler tracks are driven by independent hydraulic motors, supporting precise steering and differential control, with a minimum turning radius of just 6 meters, offering greater flexibility than traditional mechanical drives.
  Stepless Speed Regulation
  The hydraulic system provides smooth speed adjustment (0-3.5 km/h), suitable for fine lifting operations and quick relocation requirements.
• Wide Tracks and Ground Pressure Optimization
  Standard widened track shoes (width 1220mm) increase the ground contact area, reducing the ground pressure to 0.5 kg/cm², allowing stable operation on soft soil, sand, and other non-hardened surfaces.
• Modular Maintenance Design
  Quick Disassembly and Assembly
  Key parts of the crane undercarriage (such as bottom rollers and guide idlers) use a modular design, supporting quick on-site replacement and reducing downtime.
  Lubrication System
  The centralized automatic lubrication system covers all crawler chassis spare parts, extending undercarriage parts’ life and reducing manual maintenance costs.

Compare to Liebherr LR1250

Feature	KOBELCO CK2500	LIEBHERR LR1250
Ground pressure	0.5kg/cm²	0.7kg/cm²
Turning radius	6m	8m
Climbing ability	40% slope	35% slope
Energy efficiency	Energy Recovery System	Traditional hydraulic system

KOBELCO CK2500 Crane Track Shoes Details:

Material	28CrMnMo, 31Mn2SiMoNi
Technology	Casting
Heat Treatment	Advanced Quenching and Tempering, then Surface Hardness and Deep Hardening
Brand Name	EG
Warranty	2500 Working Hours / One Year

Crawler Crane Track shoes are manufactured by casting technology, which has significant advantages, mainly reflected in the following aspects:

1) High Strength and Wear Resistance
1. Material Properties:

Casting track pads are usually made of high manganese steel, alloy steel, and other materials. By the casting process, a dense structure is formed, providing excellent impact resistance and wear resistance, suitable for long-term use under harsh conditions (such as mines and rocky surfaces).
2. Surface Hardening Treatment:

All casting track plates undergo heat treatment (such as quenching) to further enhance surface hardness and extend service life.

2) Economy and Ease of Maintenance
1. Lower cost:

Compared to forging or welding technology, casting track pads are more cost-effective in mass production.
2. Easy replacement:

The modular design allows individual track shoes to be replaced independently, reducing downtime and maintenance costs.

3) Comparison with other technologies (such as Forging)

Feature	Casting Track Pads	Forging Track Pads
Costs	Low (suitable for mass production)	High (higher material and production costs)
Strength	Relatively high (compressive and wear-resistant)	Extremely high (better toughness)
Complexity	Can manufacture complex structures	Structure is relatively simple
Applicable Scenarios	Medium-heavy load, harsh conditions	Overload, high-precision requirement scenarios

 Our KOBELCO Crawler Shoe Manufacturing Process:

Through the above photo, we can see the Heat Treatment includes Quenching & Tempering, then Quenching again.

After the casting track pads undergo quenching and tempering, followed by surface quenching, the main benefits are:

1) Comprehensive Performance Optimization
Quenching and Tempering means Quenching and High-Temperature Tempering

1. Improving track plates’ toughness:

Form martensite through quenching, then achieve tempered sorbite structure through high-temperature tempering, significantly improving the overall mechanical properties of the material (strength and toughness balance), reducing the risk of brittle fracture caused by internal stress concentration.
2. Improving Machinability:

The structure after tempering is more suitable for subsequent machining or surface treatment.

Surface Hardening, such as Induction Hardening
3. Enhancing Surface Hardness:

By rapidly heating the surface layer and quenching, a high-hardness martensite layer is formed (hardness can reach HRC 55-60), greatly improving wear resistance.
4. Preserving Core Toughness:

The core retains the toughness from quenching & tempering, avoiding overall brittleness.

2) Extended Service Life
1. Wear Resistance
The surface quenching layer is usually 2-5mm deep, which can effectively resist abrasive wear from hard particles such as sand and ore, extending the service life of track shoes under harsh conditions such as mines and construction sites (increasing by about 30-50%).
2. Fatigue Resistance
Quenching &tempering treatment eliminates internal defects, and the surface quenching layer suppresses crack initiation, jointly improving fatigue strength and reducing fatigue spalling caused by impact loads.

3) Comparison of technology parameters

Technology Process Stage	Goal	Parameters
Quenching & Tempering	Matrix Toughening	Quenching temperature 850-900℃, tempering 500-600℃
Surface Hardening	Surface hardening	Induction frequency 3-10 kHz, hardened layer depth 2-5 mm

The casting crawler board achieves a ‘hard outside, tough inside’ gradient property through the composite heat treatment of quenching and tempering followed by surface hardening.

4) FAQ:

• Do you support customization or OEM?

Yes, we often produce parts as the client’s drawing, requirements, and Logo.

• How long have you been in this industry?

20+ years of technical team industry experience.

• Can you produce undercarriage parts according to drawings, measure dimensions or samples?

Yes, we often produce spare parts as client’s drawing or technology requirements.

• Do you have ISO or other certifications?

ISO 9001:2015, EG Brand, SGS Testing…

YANTAI EVERGROWING, specializes in producing Crawler Crane Undercarriage Parts for many years

25+ Crawler Crane Brand

600+ Crawler Crane Model

5000+ Crawler Crane Parts

You can enjoy the one-stop service here!

If interested, please freely contact us

Mail: info@maxcrawlercrane.com

Whatsapp:+86 17853553781