Maintain the extreme crushing power of your Epiroc / Atlas Copco HB 7000 with the Merit Premium Seal Kit. As one of the largest and most powerful hydraulic breakers in the world (7 tons), the HB 7000 operates under immense hydraulic pressures and extreme temperatures. This seal kit is specifically engineered to prevent internal oil bypass and nitrogen gas leaks, ensuring your hammer delivers 100% impact energy on every stroke.
Product Specifications
| Feature | Details |
|---|---|
| Product Name | Hydraulic Seal Kit / Kit Vedação |
| Part Number | 3363 1212 25 / 3363121225 |
| Compatible Model | Epiroc / Atlas Copco HB 7000 |
| Material | High-Grade M-Polyurethane & Heat-Stabilized Viton |
| Pressure Rating | Optimized for 180+ Bar Dynamic Loads |
Why Choose the Merit Seal Kit for the HB 7000?
The HB 7000 generates massive heat during continuous operation in quarries and primary demolition. Standard seals often fail under these conditions. The Merit 3363 1212 25 kit provides:
1. Advanced M-Polyurethane Technology
Our main piston seals are manufactured from a proprietary polyurethane compound that offers superior “memory” and abrasion resistance. Even under the high-frequency friction of the 7-ton piston, these seals maintain a tight interface, preventing the “lazy” hitting caused by internal pressure loss.
2. Nitrogen Gas Retention
The HB 7000 relies on precise nitrogen pressure in the back head to assist the power stroke. Our kit includes specialized Gas Seals designed to prevent nitrogen from leaking into the hydraulic oil, ensuring consistent striking power and reducing the need for frequent gas top-offs.
3. Heavy-Duty Dust Protection
Operating in abrasive environments leads to fine dust buildup. This kit features high-tensile Dust Wipers that effectively scrape the piston clean, protecting the internal precision-honed cylinder from scratches and contamination.
What’s Included in the 3363 1212 25 Kit?
This is a complete service solution for a professional rebuild:
- Main Piston Seals: Engineered for high-speed dynamic cycles.
- Buffer & Step Seals: To absorb pressure spikes and protect the main seal stack.
- Rod Wipers: Heavy-duty external scrapers.
- Nitrogen Gas Seals: For the back head assembly.
- Static O-Rings & Back-up Rings: For the valve body and housing interfaces.
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