Hydraulic Rock Breaker Hammer Complete Seal Repair Kit PU NBR PTFE FKM for Atlas Copco HB4700
PU NBR PTFE Complete Seal Repair Kit for Atlas Copco HB4700 Hydraulic Breaker
This comprehensive seal repair kit for the Atlas Copco HB4700 hydraulic breaker contains all required sealing components manufactured from premium-grade PU (Polyurethane), NBR (Nitrile Rubber), PTFE (Polytetrafluoroethylene), and FKM (Fluoroelastomer) materials. The multi-material combination ensures optimal sealing performance across the full operating pressure and temperature range.
Kit Specifications
| Parts Number | HB4700 Seal Kit |
| Application | Atlas Copco HB4700 Hydraulic Hammer |
| Position | Hydraulic Cylinder System |
| Materials | PU + PTFE + FKM + NBR |
| Package Contents | Full set O-rings, oil seals, wear rings, backup rings |
| Delivery Time | 3-7 Working Days |
Premium Material Performance
PU seals provide excellent abrasion resistance and high load-bearing capacity for the piston and cylinder interface. NBR O-rings deliver reliable low-pressure sealing with good oil compatibility. PTFE backup rings prevent extrusion under high pressure. FKM seals withstand elevated temperatures in the accumulator section.
Anti-Leakage Assurance
All seals are manufactured to OEM dimensional specifications for exact fit. The kit effectively solves common issues of oil leakage, pressure drop, and sealing failure in hydraulic breakers operating under heavy-duty mining and construction conditions. Packaged in a labeled compartment box for easy identification during installation.
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