Forged Heat-Treated Alloy Tool Steel 155mm Chisel Replacement for SB121 HB40G Excavator Hydraulic Breaker Hammer
155mm Heat-Treated Forged Alloy Tool Steel Chisel for Hydraulic Breaker
This 155mm diameter hydraulic breaker chisel is manufactured from high-strength forged alloy tool steel with integral heat treatment for exceptional wear resistance and impact durability. Designed for SB121, HB40G, and compatible heavy-duty breaker models.
Manufacturing Specifications
| Chisel Diameter | 155 mm |
| Material | High-Strength Forged Alloy Tool Steel |
| Heat Treatment | Forging + Integral Quenching & Tempering |
| Surface Hardness | HRC 52-58 |
| Machining | Precision Turning & Grinding |
| Compatible Models | SB121, HB40G, SB151 |
| Quality Standard | Industrial Replacement Standard |
Superior Wear Resistance
The chisel undergoes a rigorous manufacturing process: alloy steel forging → rough shaping → integral quenching and tempering → precision turning → surface grinding → quality inspection. This produces a chisel with superior impact toughness at the tip and excellent dimensional accuracy for smooth operation inside the front head bushings.
Application Range
Suitable for hard rock breaking, reinforced concrete demolition, quarry operations, mining excavation, and road construction. Designed as a direct replacement for original chisels in SB121, HB40G, and SB151 series heavy-duty hydraulic breakers.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.