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R520 Track Idler 81QB-13011 with medium frequency quenching for heavy-load track tension regulation system
R520 Track Idler 81QB-13011 with medium frequency quenching for heavy-load track tension regulation system
R520 Track Idler 81QB-13011 with medium frequency quenching for heavy-load track tension regulation system
R520 Track Idler 81QB-13011 with medium frequency quenching for heavy-load track tension regulation system
R520 Track Idler 81QB-13011 with medium frequency quenching for heavy-load track tension regulation system
R520 Track Idler 81QB-13011 with medium frequency quenching for heavy-load track tension regulation system
R520 Track Idler 81QB-13011 with medium frequency quenching for heavy-load track tension regulation system
R520 Track Idler 81QB-13011 with medium frequency quenching for heavy-load track tension regulation system
Specifications
Payment Terms :
T/T,L/C
Trademark :
OEM
Warranty Time :
18 Months
Price :
US$105-221
Surfacetreatment :
Heat treated and painted
Feaatures :
Durable
Model Number :
R520/R520LC-7/R520LC-9/R490
Productname :
Excavator Front Idler
MOQ :
1PCS
Delivery Time :
7-15Days
Technique :
Casting And Heat Treatment
Supply Ability :
10000PCS/Months
Color :
Black And Yellow
Packaging Details :
Standard Export Packaging
Certification :
ISO9001
Place of Origin :
CHINA
Brand Name :
ZTMC
Dimension :
Standard
Description
R520 Track Idler 81QB-13011 with Medium Frequency Quenching
This professional heavy-duty track guiding and tensioning component is customized for R520 series large excavator undercarriage systems. Unlike conventional heat-treated idlers with single and unstable hardness, this track idler utilizes advanced medium frequency quenching technology optimized specifically for heavy-load track tension regulation scenarios.
Technical Specifications
Parameter Item Factory Verified Specification
Part Number 81QB-13011
Applicable Equipment R520 Series Excavator
Core Technology Precision Medium Frequency Quenching
Surface Hardness HRC 52-58
Dimensional Tolerance ±0.02mm
Structural Feature Layered Hardness, Anti-wear & Anti-impact
Working Scenarios Heavy-load mining, earthwork, continuous tension operation
Advanced Quenching Technology
Most ordinary track idlers adopt overall single quenching or shallow heat treatment, which cannot adapt to continuous tension fluctuation and heavy impact of large chassis track systems. This 81QB-13011 track idler features differentiated medium frequency quenching craftsmanship with controllable heating depth and uniform layered hardness distribution. The surface forms a thick, stable wear-resistant layer while the inner body retains excellent mechanical toughness.
Core Advantages
  • Scientific dual-performance structure balancing surface abrasion resistance and internal impact resistance
  • Stable track tension balance during high-intensity operation
  • Prevents track loosening, deviation, and abnormal chassis wear
  • Accurate dimensional tolerance for direct bolt-on replacement
  • Standardized heat treatment process ensuring batch consistency
  • Meets long-term heavy-load operation requirements
Quality Assurance & Packaging
Every finished unit undergoes strict hardness detection and tension matching testing. All products are treated with anti-rust oil, waterproof film wrapping, and reinforced wooden box packaging to prevent damage during transportation. We support sample testing, small-batch trial orders, and bulk wholesale for global engineering equipment maintenance.
R520 Track Idler 81QB-13011 with medium frequency quenching for heavy-load track tension regulation system R520 Track Idler 81QB-13011 with medium frequency quenching for heavy-load track tension regulation system
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R520 Track Idler 81QB-13011 with medium frequency quenching for heavy-load track tension regulation system

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Product Detail
Payment Terms :
T/T,L/C
Trademark :
OEM
Warranty Time :
18 Months
Price :
US$105-221
Surfacetreatment :
Heat treated and painted
Feaatures :
Durable
Contact Supplier
R520 Track Idler 81QB-13011 with medium frequency quenching for heavy-load track tension regulation system
R520 Track Idler 81QB-13011 with medium frequency quenching for heavy-load track tension regulation system
R520 Track Idler 81QB-13011 with medium frequency quenching for heavy-load track tension regulation system
R520 Track Idler 81QB-13011 with medium frequency quenching for heavy-load track tension regulation system

Nan'an Zhongte Engineering Machinery Factory

Verified Supplier
2 Years
fujian, quanzhou
Since 2015
Business Type :
Manufacturer, Exporter
Main Products :
Excavator Front Idler, Mini Excavator Front Idler, Bulldozer Front Idler
Total Annual :
5000000-8000000
Employee Number :
100~120
Certification Level :
Verified Supplier
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