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Nan'an Zhongte Engineering Machinery Factory

  • China,Quanzhou ,Fujian
  • Verified Supplier
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China R520 Track Idler 81QB-13011 with medium frequency quenching for heavy-load track
China R520 Track Idler 81QB-13011 with medium frequency quenching for heavy-load track

  1. China R520 Track Idler 81QB-13011 with medium frequency quenching for heavy-load track
  2. China R520 Track Idler 81QB-13011 with medium frequency quenching for heavy-load track
  3. China R520 Track Idler 81QB-13011 with medium frequency quenching for heavy-load track
  4. China R520 Track Idler 81QB-13011 with medium frequency quenching for heavy-load track

R520 Track Idler 81QB-13011 with medium frequency quenching for heavy-load track

  1. MOQ: 1PCS
  2. Price: US$105-221
  3. Get Latest Price
Payment Terms T/T,L/C
Trademark OEM
Warranty Time 18 Months
Surfacetreatment Heat treated and painted
Feaatures Durable
Productname Excavator Front Idler
Delivery Time 7-15Days
Technique Casting And Heat Treatment
Supply Ability 10000PCS/Months
Color Black And Yellow
Packaging Details Standard Export Packaging
Dimension Standard
Model Number R520/R520LC-7/R520LC-9/R490
Certification ISO9001
Place of Origin CHINA
Brand Name ZTMC

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms T/T,L/C Trademark OEM
Warranty Time 18 Months Surfacetreatment Heat treated and painted
Feaatures Durable Productname Excavator Front Idler
Delivery Time 7-15Days Technique Casting And Heat Treatment
Supply Ability 10000PCS/Months Color Black And Yellow
Packaging Details Standard Export Packaging Dimension Standard
Model Number R520/R520LC-7/R520LC-9/R490 Certification ISO9001
Place of Origin CHINA Brand Name ZTMC
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 detailed view showing construction and mounting points R520 Track Idler 81QB-13011 installed on excavator undercarriage system

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer,Exporter

  • Year Established:

    2015

  • Total Annual:

    5000000-8000000

  • Employee Number:

    100~120

  • Ecer Certification:

    Verified Supplier

Nanan Zhongte Construction Machinery Factory is located in Quanzhou, Fujian Province, China — a city recognized by UNESCO as the starting point of the ancient Maritime Silk Road and also a vibrant metropolis with an economic output exceeding one trillion yuan. As a large enterprise specializin... Nanan Zhongte Construction Machinery Factory is located in Quanzhou, Fujian Province, China — a city recognized by UNESCO as the starting point of the ancient Maritime Silk Road and also a vibrant metropolis with an economic output exceeding one trillion yuan. As a large enterprise specializin...

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  • Nan'an Zhongte Engineering Machinery Factory
  • No. 105, Shangdian Street, Changfu Village, Xiamei Town, Nan'an City, Quanzhou City, Fujian Province
  • https://www.excavatoridlers.com/

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