3363122470 Hydraulic Breaker Seal Kit for Epiroc & Atlas Copco HB2500 Hammer Repair | Heavy-Duty Cylinder Rebuild Solution

Product Overview

Restore peak striking power and eliminate internal hydraulic pressure loss with our premium 3363122470 Hydraulic Breaker Seal Kit.

Precision-engineered for the Epiroc and Atlas Copco HB2500 heavy-duty hydraulic breakers (155mm working tool diameter, fitting 27 to 46-ton class excavators), this overhaul repair kit is custom-tailored to withstand the massive shock loads, extreme thermal spikes, and crushing pressures encountered in primary quarrying, mining, and heavy demolition operations.

Key Features & Benefits

• Upgraded P6000 Polyurethane Matrix

  Primary dynamic rod and accumulator seals are molded from high-modulus P6000 Polyurethane (PU) compound, delivering superior extrusion resistance under continuous working pressures above 180 bar to prevent seal lip flattening.

• Dual-Function Gas-Oil Sealing System

  Combines precision low-friction PTFE step seals with premium NBR energy rings to create an airtight seal for the nitrogen back-head chamber while keeping hydraulic fluid fully isolated.

• High-Thermal Fluid Containment

  Formulated to maintain full elastic memory and radial lip force at continuous operating temperatures reaching 120°C, guarding against heat-induced brittle fracturing.

• Heavy Dust Excluder Wipers

  Features a rugged, metal-clad double-lip wiper design that aggressively removes fine rock dust, quartz sand, and external contaminants before they scratch the piston or compromise the hydraulic system.

Technical Specifications

• Brand Compatibility: Epiroc / Atlas Copco Heavy Series

• Compatible Hammer Model: Epiroc / Atlas Copco HB2500 Heavy Rock Breaker (155mm Tool Diameter)

• OEM Reference Part Numbers: 3363122470 (3363 1224 70)

• Internal SKU / Item Code: 3363122470

• Product Type: Hydraulic Cylinder Overhaul Kit / Piston & Accumulator Seals

• Material Matrix: Premium P6000 PU, High-Fluorine NBR, Bronze-Filled PTFE

• Carrier Excavator Match: 27.0 – 46.0 Ton Class (e.g., CAT 336, Komatsu PC300, Volvo EC300)

Important Fitment & Ordering Note

Verify Before Ordering: Heavy-series hydraulic hammer components can vary based on serial numbers and production runs. Please cross-check your hammer model, serial number, or existing seal profiles against OEM technical drawings prior to purchase to guarantee a 100% accurate match.