SB121 Heavy Duty 175mm Chisel Upper Mount Hydraulic Rock Breaker Hammer for 40-55 Ton Mining Excavator
SB121 Heavy Duty Top Type Hydraulic Rock Breaker Hammer
The SB121 Top Type Hydraulic Rock Breaker is engineered for the most demanding mining and heavy demolition applications. Designed for 40-55 ton excavators, this breaker delivers exceptional impact energy of 12,000-16,000 Joules at a striking frequency of 200-350 BPM, making it ideal for primary rock breaking in quarries and mining operations.
Key Specifications
| Impact Energy | 12,000-16,000 J |
| Blows Per Minute | 200-350 BPM |
| Chisel Diameter | 175 mm |
| Working Pressure | 160-180 Bar |
| Oil Flow | 250-320 L/min |
| Operating Weight | 3,780 kg |
| Suitable Excavator | 40-55 Ton |
| Mounting Type | Top Type |
Application Versatility
Widely used in hard rock mining, quarry stone breaking, reinforced concrete demolition, road and tunnel construction, and foundation excavation projects. Effectively breaks granite, basalt, limestone, and ultra-hard concrete structures.
Heavy-Duty Construction
Main body cylinder forged from 42CrMoA alloy steel with integral quenching and tempering treatment. Piston precision-honed for tight tolerance. Automatic lubrication system reduces maintenance downtime. Nitrogen gas-charged accumulator stabilizes hydraulic pulse for consistent impact delivery.
Superior Wear Resistance
Front head assembly features replaceable inner and outer bushings. Hardened chisel pin and retaining system ensures secure tool retention under extreme loads. Complete spare parts availability including seal kits, pistons, bushes, and chisels.
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