🌐 Global Continuous Spare Parts Supply: Direct Delivery to Your Desired Destination.
MERIT keeps your production lines running with an agile, high-velocity distribution network designed to eliminate equipment downtime. We deliver premium-grade hydraulic breaker parts directly to mine sites, fleet workshops, and regional equipment distributors across our primary international logistical corridors:
- The Arabian Peninsula Infrastructure Corridor: Full regional supply of climate-resilient sealing and high-wear structural steel components across the entire GCC—with regular, prioritized dispatch handling straight to Qatar (Doha), Oman (Muscat, Sohar, Salalah), and the UAE (Abu Dhabi, Dubai, Sharjah), as well as onwards to the ever-growing destinations added to our portfolio daily.
- Saudi Arabia Network: Direct supply pipelines serving primary mining sites, limestone quarries, and massive civil engineering infrastructure projects across Riyadh, Jeddah, Al Khobar, and the NEOM development zones.
- Australia & Oceania: Rapid transit solutions directly serving high-volume iron ore, gold, and coal mining fields across Western Australia (Pilbara), Queensland, and New South Wales.
- Global Heavy Hubs (Europe, Africa, Central Asia, The Americas): Our borderless shipping operations reach major plant hire fleets and tier-one mining projects from Frankfurt to Zagreb, Johannesburg to Houston, and onwards straight to your job site. Wherever your hammer operates, MERIT guarantees direct factory-to-door delivery.
High-Pressure Fluid Containment Matrix for 50-to-80-Ton Carrier Excavators
The Hydraulic Breaker Seal Kit (widely engineered as the Cylinder Overhaul Kit, Hammer Packing Set, or Power Cell Seal Group) is the critical fluid-containment and pressure-isolation matrix custom-compounded for the heavy-duty Rammer 5011 and 5011E (Sandvik BR5011) large-range hydraulic rock breakers. Tasked with managing severe hydraulic pressure variations (150 to 230 bar) inside a massive 5-ton hammer assembly, this premium kit is a direct, high-performance equivalent to OEM Part No. 170948 (and associated base seal group 168280).
Positioned across the central control valve block, accumulator mounting faces, and the primary reciprocating piston cylinder, these seals prevent high-pressure oil bypass. This ensures that 100% of the carrier excavator’s hydraulic oil flow is efficiently converted into destructive kinetic striking power.
MERIT manufactures this elite replacement seal group using a multi-material configuration engineered to withstand sustained operational temperatures up to 110∘C and intense physical friction cycles without deformation or tearing.
Technical Features and Material Engineering of MERIT 170948 Seal Kits
Surviving continuous high-frequency hydraulic shockwaves and preventing external oil leaks in high-ambient GCC environments requires absolute metallurgical and chemical precision. MERIT ensures field reliability through:
1. Bronze-Filled PTFE Dynamic Step Seals
The primary dynamic piston rod seals are composed of premium PTFE (Teflon) filled with Bronze paired with high-elasticity Fluorocarbon (FKM/Viton) square energy expanders. This advanced design limits stick-slip friction on the reciprocating piston shank, eliminating premature scuffing while maintaining an absolute fluid barrier.
2. Heavy-Duty Polyurethane (PU) U-Cups & Wipers
Our specialized dual-lip polyurethane dust wipers and rod seals form a strict barrier at the front head tool interface. They aggressively reject abrasive rock dust, granite slurry, and fine desert sand ingress while securely containing the internal oil circuit to eliminate high-pressure blow-by.
3. High-Durometer Anti-Extrusion O-Rings
Static sealing surfaces utilize 90 Shore A hardness Nitrile (NBR) O-rings reinforced with contoured thermoplastic back-up rings. This multi-layered defense prevents seal extrusion or flattening across structural block gaps, valve housings, and main pressure points during intense hydraulic rebound peaks.
Primary Overhaul Applications
- Complete Power Cell Rebuilds: Restoring factory-standard pressure isolation during comprehensive mid-life hammer servicing.
- Preventative Leak Mitigation: Replacing degraded, heat-hardened elastomer groups before external fluid loss causes high oil consumption or dangerous site contamination.
- Volumetric Efficiency Restoration: Swapping worn dynamic rings to correct low impact frequency, tool drifting, or sudden drops in rock-breaking velocity.
Product Specifications
| Engineering Specification | Structural & Logistic Values |
|---|---|
| Product Line | Hydraulic Breaker Seal Kit / Cylinder Packing Set / Overhaul Kit |
| Compatible Hammer Models | Rammer 5011 / Rammer 5011E / Sandvik BR5011 Large Range Series |
| OEM Cross-Reference No. | Equivalent to Part No. 170948 (Replaces Base Group 168280) |
| Material Base Group | Polyurethane (PU), Bronze-PTFE, FKM/Viton, High-Durometer NBR |
| Operating Thermal Envelope | Up to 110°C (230°F) Continuous Operational Temperature |
| Logistics & Supply Target | Direct Delivery to Doha, Muscat, Abu Dhabi, Frankfurt, Dubai |
| Manufacturer & Supplier | MERIT Global Spare Parts |
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