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Dipper Parts

PROUDLY MADE IN USA

With over 40 years of experience, OPM Heavy Equipment and Repair is a leading producer of forged manganese steel bushings, pins, and other wear-resistant products for the mining industry. We have appointed Antofagasta Parts LLC as our exclusive dealership for the South American market. Our products are proudly manufactured in the USA.

Leading Producer of Forged Manganese Steel Bushings and Pins

Extensive Product Control

We fully austenitize every bushing so the core remains ductile in temperatures as low as minimum -100C

Unique Work

Superior Surface Hardening: Unique Work Hardening features to 55/65 RC

Innovated Technology

A finer grain structure for strength and premiere durability

High Quality

high Carbon Alloy with a guaranteed chemistry of 1.0-1.4% and 11.0-14% Manganese

Why OPM Heavy Equipment and Repair is Superior

  • High Carbon Alloy with a guaranteed chemistry of 1.0-1.4% and 11.0-14% Manganese
  • Ultimate Strength: to 165,000 psi
  • Tensile Strength: 55,000/65,000 psi for Unmatched Toughness
  • Superior Surface Hardening: Unique Work Hardening features to 55/65 Rc
  • We fully austenitize every bushing so the core remains ductile in temperatures as low as minimum -100C
  • A finer Grain structure for strength and premiere durability.
  • Low Metal to Metal Coefficient of Friction
  • Our products are guaranteed to reduce lead time, which equals greater productivity and more profit for you

Peened Bushings

Built for extreme environment standards to add life to your bushings Supplied inside diameter hardness 52 Rc to 55 Rc 11-14% high-carbon Hadfield grade manganese steel forged by skilled tradesmen

Manganese Pins

Forged for superior wearability and strength 11-14% high-carbon Hadfield grade manganese steel base

Overlay Pins

Core material high-strength alloy 0.375" to 0.50" Radial overlay at 52 RC as manufactured In-service work hardened surface to 62 RC (to provide superior predictable wear)

Forged Bushings

11-14% high-carbon Hadfield grade manganese steel forged by skilled tradesmen Fully austenitized to provide a ductile base and high surface hardness More cost effective forged bushings last up to four times as long as others High-quality means less downtime, increasing productivity

Induction Hardened Alloy Pins

Core material high-strength alloy Surface hardness 52 RC to 55 RC Hardness 0.25" to 0.375" depth

Alloy Pins

Material from high strength alloy

Dipper Parts

  • Our products are 100% interchangeable with OEM parts, ensuring the highest quality and reliability. We take pride in providing top-tier spare parts with minimal lead times to keep your operations running smoothly.
Dipper Parts