75211471 Single Grouser Track Shoe 171mm Pitch Forged 23MnB Steel for Excavator Undercarriage Parts

The 75211471 Single Grouser Track Shoe is a versatile aftermarket component designed for 15-25 ton class excavators. The 171mm pitch and 450mm width configuration serves a wide range of popular excavator models from CAT, Komatsu, and Hitachi. Forged from 23MnB boron alloy steel and induction hardened on the grouser surface (HRC 42-46), this shoe delivers reliable wear life at a competitive price point. The single grouser design provides excellent digging platform stability, making it ideal for excavators performing heavy trenching and slope work. Each shoe is CNC-machined for bolt hole accuracy and coated with anti-corrosion paint.

• Mid-Size Excavator Fit: 171mm pitch design for 15-25 ton class excavators including CAT 315, 318, Komatsu PC150, PC180
• Single Grouser Traction: Penetrating grouser profile for improved digging stability and slope work capability
• Forged 23MnB Steel: Cost-effective 23MnB grade with induction hardening on grouser contact surface
• Narrow 450mm Profile: Agile width for maneuverability in confined job sites while maintaining adequate flotation

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.

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

Compatible with CAT 315, 318, Komatsu PC150, PC180, and similar 15-25 ton excavators. Suitable for general construction, utility work, slope grading, and medium excavation tasks.

The 75211471 (SG171I-12-450) fits excavators with 171mm pitch track chains including CAT 315, 318C, Komatsu PC150, PC180, and various Hitachi/Sumitomo 15-20T models. Verify your track chain pitch before ordering.

This shoe is designed for excavator track chains (171mm pitch). Most bulldozers in this size range use different pitch sizes. Check your machine specifications before ordering.