Ensure the stability and longevity of your breaker with the Merit High-Performance Wear Plate, specifically designed for the Epiroc HB 4200. These plates are critical components located between the internal hammer mechanism (percussion unit) and the external box housing. By absorbing vibrations and reducing friction, the wear plates prevent metal-to-metal contact, protecting your expensive breaker housing from internal structural damage.
Product Specifications
| Feature | Details |
|---|---|
| Product Name | Wear Plate / Guide Plate / Placa |
| Part Number | 3363 0862 37 / 3363086237 |
| Compatible Model | Epiroc / Atlas Copco HB 4200 |
| Material | Heavy-Duty Friction-Resistant Composite / Polyamide |
| Function | Vibration Dampening and Internal Alignmen |
Why Choose the Merit Wear Plate for the HB 4200?
The Epiroc HB 4200 is a massive 4.2-ton breaker that generates immense kinetic energy. Without high-quality wear plates, the internal components would quickly destroy the outer shell. Merit plates offer:
1. Superior Vibration Dampening
Our plates are manufactured from high-density, impact-resistant materials designed to absorb the high-frequency harmonic vibrations of the HB 4200. This protects the mounting bolts and the excavator boom from unnecessary stress.
2. Self-Lubricating Properties
The 3363 0862 37 plate features a low-friction surface that allows the percussion unit to move slightly within the housing without seizing or generating excessive heat. This “floating” movement is essential for the breaker to handle recoil without cracking the housing weldments.
3. Precision Fit and Thickness
Epiroc HB series breakers require exact tolerances to maintain alignment. Merit wear plates are machined to the precise OEM thickness. A plate that is too thin causes the hammer to “clatter” inside the box; a plate that is too thick makes assembly impossible. Ours are guaranteed to fit perfectly.
Maintenance Tip: When to Replace Your Plates?
Wear plates are “sacrificial” parts. You should inspect them every 500 hours or during a major seal change:
- Visual Inspection: Look for thinning, cracking, or “melting” at the edges.
- The “Gap” Test: If there is visible movement or a “clunking” sound when the hammer is lifted or pressed down, the plates are worn beyond their limit.
- Complete Overhaul: When replacing wear plates, it is highly recommended to check the Side Bolts and Elastic Dampers as well to ensure the entire suspension system of the HB 4200 is secure.
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