Rammer S25 N Front Head.
🏗 Front Head Chuck Housing Lower for Hydraulic Hammers
MERIT – Engineered for Long Life, Precision Fit, and Extreme Durability
MERIT’s Front Head Chuck Housing Lower is a critical component in the performance and reliability of hydraulic breakers. Crafted using high-grade alloy steel and precision heat treatment processes, our parts deliver exceptional wear resistance, fatigue strength, and impact absorption, ensuring longer service life in the harshest working environments.
🔩 Technical Specifications
✅ Material: High-Strength Alloy Steel (42CrMo4, 34CrNiMo6, or Equivalent)
✅ Manufacturing Process: CNC Precision Machining + Heat Treatment + Quality Inspection
✅ Surface Hardness: 52–58 HRC (Optimal Wear Resistance)
✅ Core Hardness: 32–38 HRC (Impact Absorption)
✅ Tensile Strength: 850–1050 MPa
✅ Yield Strength: ≥ 650 MPa
✅ Elongation: ≥ 12% (Excellent Ductility)
✅ Impact Toughness: ≥ 30 J (Charpy V-Notch at -20°C)
✅ Case Depth (Effective Hardness Layer): 3–5 mm (Ensures Long-Lasting Surface Strength)
✅ Dimensional Tolerance: ±0.01 mm (Ensures Perfect Fit with OEM Components)
🧪 Chemical Composition (Typical)
| Element | Percentage (%) | Purpose |
|---|---|---|
| Carbon (C) | 0.38–0.45 | Strength & hardness |
| Silicon (Si) | 0.15–0.35 | Deoxidizer, improves toughness |
| Manganese (Mn) | 0.60–0.90 | Increases hardenability & wear resistance |
| Chromium (Cr) | 0.90–1.20 | Enhances hardness, wear resistance, and strength |
| Nickel (Ni) | 0.25–0.50 | Improves toughness, prevents brittleness |
| Molybdenum (Mo) | 0.15–0.30 | Increases strength, hardness, and high-temp resistance |
| Sulfur (S) | ≤0.030 | Kept low to avoid brittleness |
| Phosphorus (P) | ≤0.030 | Kept low to ensure toughness |
⚙️ Performance Advantages
🔹 Long Life in Use: Designed to withstand extreme impact and cyclic loading, minimizing wear and tear, reducing replacement frequency, and maximizing uptime.
🔹 Heat-Treated Excellence: Quenched and tempered for optimal microstructure, combining high surface hardness with a tough core.
🔹 Precision Engineering: Ensures perfect alignment and load distribution inside the hammer, reducing the risk of premature failure.
🔹 Superior Wear Resistance: Withstands abrasive conditions found in quarrying, demolition, and mining.
🌍 Applications
Heavy-duty hydraulic hammers used in:
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Quarrying
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Demolition
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Mining
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Road Construction
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General Excavation
Compatible with ATLAS COPCO, CATERPILLAR, CHICAGO PNEUMATIC, DEHACO, DEMOTER, DAINONG, DRAGO, FURUKAWA, GEHL, MTB, DNB, MSB, TECMAN, HAMMER, HANWOO, HYDRA, IMI, INDECO, ITALDEM, JCB, KOROTA, KRUPP, KUBOTA, MONTABERT, NPK, OCM, OMAL, PROMOVE, RAMMER, ROTAIR, SANDVIK, BRETEC, ALLIED, OKADA, TOPA, TOYO, TOKU, SOCOMEC, SOOSAN, STANLEY, TABE, TAKEUCHI, TECNA, VISTARINI, and others.
