Ensure the structural integrity of your hammer with the Merit High-Tensile Tension Bolt (Tornillo de Tensión), specifically designed for Epiroc and Atlas Copco hydraulic breakers. The tie rod is the critical component that clamps the back head, cylinder, and front head together. Given the massive percussive forces generated by Epiroc breakers, using the 3363 0946 04 precision bolt is essential to prevent housing separation and internal component misalignment.
Product Specifications
| Feature | Details |
|---|---|
| Product Name | Tie Rod / Tension Bolt / Tornillo de Tensión |
| Part Number | 3363 0946 04 / 3363094604 |
| Compatible Brand | Epiroc / Atlas Copco |
| Material | Forged 42CrMo High-Alloy Steel |
| Process | Cold-Rolled Threads & Induction Hardened |
Why Choose the Merit 3363 0946 04 Tension Bolt?
Epiroc breakers are known for their high frequency and impact energy. The 3363 0946 04 tie rod is engineered to handle these specific stresses:
1. Maximum Fatigue Resistance
Under operation, tension bolts are subject to constant stretching and vibration. Merit bolts are manufactured from forged alloy steel with an optimized grain flow, providing superior resistance to fatigue. This prevents the bolt from snapping—a failure that can lead to expensive damage to the cylinder and piston.
2. Precision Rolled Threads
Unlike cut threads, our bolts feature cold-rolled threads. This manufacturing process increases the density of the steel in the threaded area, significantly reducing stress concentration points and ensuring the nut stays securely torqued during heavy demolition tasks.
3. Optimized Clamping Force
Part number 3363 0946 04 is machined to exact OEM tolerances. This ensures that the clamping force is perfectly balanced across the breaker assembly, keeping the internal Percussion Chamber aligned and preventing “piston scuffing.”
Key Benefits
- OEM Compatibility: A direct replacement for Epiroc / Atlas Copco part number 3363 0946 04.
- Durability: Hardened surfaces resist corrosion and mechanical wear in harsh mining environments.
- Safety: Reliable structural support prevents catastrophic breaker housing failure.
Maintenance Tip: Proper Torquing is Critical
To ensure the longest life for your Tornillo de Tensión:
- Use a Torque Wrench: Never tighten these bolts by “feel.” Always use a hydraulic torque wrench to reach the specific factory-specified tension for your Epiroc model.
- Lubrication: Apply a thin layer of high-quality anti-seize lubricant to the threads and the nut’s seating surface to ensure an accurate torque reading.
- Regular Inspection: During your 50-hour check, inspect the nuts for any signs of loosening or “backing off.”
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