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XIAMEN YINTAI MACHINERY CO., LTD

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China KM908 Triple Grouser Track Shoe 135mm Pitch 23MnB Boron Alloy Steel for Mini
China KM908 Triple Grouser Track Shoe 135mm Pitch 23MnB Boron Alloy Steel for Mini

  1. China KM908 Triple Grouser Track Shoe 135mm Pitch 23MnB Boron Alloy Steel for Mini
  2. China KM908 Triple Grouser Track Shoe 135mm Pitch 23MnB Boron Alloy Steel for Mini
  3. China KM908 Triple Grouser Track Shoe 135mm Pitch 23MnB Boron Alloy Steel for Mini

KM908 Triple Grouser Track Shoe 135mm Pitch 23MnB Boron Alloy Steel for Mini

  1. MOQ: 30 Pieces
  2. Price: Negotiable
  3. Get Latest Price
Payment Terms T/T,L/C
Packaging Details Fumigation-free wooden pallet, VCI anti-rust film, steel strapping
Delivery Time 5-7 days for stock, 15-25 days for production
Supply Ability 80000 Pieces per Month
Place of Origin Fujian, China
Model Number KM908-TG135-450
Brand Name YT
Certification ISO 9001:2015

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms T/T,L/C Packaging Details Fumigation-free wooden pallet, VCI anti-rust film, steel strapping
Delivery Time 5-7 days for stock, 15-25 days for production Supply Ability 80000 Pieces per Month
Place of Origin Fujian, China Model Number KM908-TG135-450
Brand Name YT Certification ISO 9001:2015
High Light Triple Grouser Track Shoe135mm Pitch Undercarriage Plate23MnB Boron Alloy Steel Grouser Plate
Product Overview

The KM908 Triple Grouser Track Shoe is a precision-engineered undercarriage component for 2-4 ton class mini excavators. With a compact 135mm pitch and narrow 450mm width, this shoe is specifically designed for the lightweight track chains of mini excavators used in urban and residential construction. Hot forged from 23MnB boron alloy steel, each shoe undergoes controlled heat treatment to achieve balanced hardness (HRC 38-44) — hard enough for wear resistance yet tough enough to absorb the shock loads typical of mini excavator digging cycles. The triple grouser profile provides smooth ride quality and surface protection, making it the preferred choice for operators working on finished surfaces.

Key Features
  • Ultra-Compact Mini Excavator Fit: Designed for 2-4 ton class mini excavators with 135mm pitch and narrow 450mm profile
  • Triple Grouser Urban Design: Low-profile grousers ideal for urban construction, landscaping, and surface-sensitive applications
  • Precision Forged Small Part: 23MnB steel with tight tolerance die forging for consistent quality across high-volume production
  • Cross-Brand Compatibility: Fits Komatsu PC20 PC30, CAT 302 303, Hitachi EX30, and similar mini excavator models
Technical Specifications

Track shoe dimensional specifications

SpecificationValue
Part NumberKM908 / TG135A-6-450
Pitch135mm
Width450mm
Grouser TypeTriple Grouser (TG)
Material23MnB Boron Alloy Steel
HardnessHRC 38-44
Weight per Shoe~6.8 kg
Bolt Pattern4-bolt, M14 x 1.5
Surface TreatmentBlack anti-corrosion paint
Factory Strength

Our manufacturing facility spans over 20,000 square meters equipped with advanced forging production lines, CNC machining centers, and automated heat treatment furnaces. We operate 8 die forging hammers (1T-10T capacity), 12 CNC turning/milling machines, and 4 continuous mesh-belt quenching & tempering furnaces with precise temperature control. Annual production capacity exceeds 500,000 track shoes. Every batch undergoes rigorous quality inspection including dimensional gauging, hardness testing (HRC), ultrasonic flaw detection, and magnetic particle inspection. We hold ISO 9001:2015 and ISO 14001:2015 certifications, with SGS/Bureau Veritas third-party inspection available upon request. Our in-house metallurgical lab ensures consistent 23MnB/25MnB boron steel composition and optimal heat treatment parameters for maximum wear resistance and impact toughness.

Production Process
Track shoe manufacturing process overview
Quality Control Process

  1. Incoming raw material inspection with spectrometer analysis
  2. Forging temperature monitoring and die wear inspection
  3. Post-forging dimensional check on sampling basis (1 per 50 pcs)
  4. Heat treatment hardness verification (HRC 40-48 on grouser surface)
  5. Magnetic particle inspection for surface crack detection
  6. Final dimensional inspection with go/no-go gauges
  7. Anti-corrosion coating and packing inspection
Applications

Compatible with Komatsu PC20, PC30, CAT 302, 303, Hitachi EX30, and similar 2-4 ton mini excavators. Ideal for landscaping, utility trenching, indoor demolition, and urban construction.

Frequently Asked Questions
Q1: How many shoes does a mini excavator need?

A typical 2-4 ton mini excavator requires 36-42 track shoes per side (72-84 total). Please confirm your track chain link count for an accurate quantity.

Q2: Is this compatible with rubber track machines?

This steel track shoe is designed for steel track chain systems. If your machine currently uses rubber tracks, you would need to convert to a steel track chain system first.

Q3: What is the weight capacity of these shoes?

These shoes are designed for machines up to 4 tons operating weight. The forged 23MnB construction provides ample strength for mini excavator applications with a generous safety margin.

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer,Exporter

  • Year Established:

    2011

  • Total Annual:

    10Million-20Million

  • Employee Number:

    50~100

  • Ecer Certification:

    Verified Supplier

XIAMEN YINTAI MACHINERY CO., LTD. is loed in the beautiful port city of Xiamen. It is a manufacturing enterprise which is focusing on research and development, production and trade of construction machinery parts. YinTai cooperates with Chinese famous large steel mills, such as Fujian S... XIAMEN YINTAI MACHINERY CO., LTD. is loed in the beautiful port city of Xiamen. It is a manufacturing enterprise which is focusing on research and development, production and trade of construction machinery parts. YinTai cooperates with Chinese famous large steel mills, such as Fujian S...

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Get in touch with us

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  • XIAMEN YINTAI MACHINERY CO., LTD
  • No.83-5, Xin’An Road, Nei Cuo Town, Xiang’An District, Xiamen City, China
  • https://www.undercarriagespare-parts.com/

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