The RB 777 pneumatic concrete breaker is a robust tool designed for primary demolition and concrete fragmentation in aggregate processing plants. With an impact energy of 45 Joules and operating at 5-6 bar air pressure, it efficiently breaks reinforced concrete slabs, foundations, and oversized rocks into manageable pieces for further crushing.
– Power: 45 J impact energy
– Operating Pressure: 5-6 bar (72-87 psi)
– Weight: 24 kg (52.9 lbs)
– Blow Rate: 1,100 blows per minute
– Air Consumption: 24 L/s
In a typical sand and gravel production line, the RB 777 serves as a pre-crushing unit for:
1. Demolishing old concrete structures.
2. Reducing large quarry rocks (<600mm) before jaw crushers.
3. Preparing recycled concrete aggregates (RCA).
Downstream equipment often includes jaw crushers (e.g., PE600×900), impact crushers, and vibrating screens to produce 0-5mm manufactured sand and 5-20mm coarse aggregates.
Q: What maintenance does RB 777 require?
A: Daily lubrication of the piston assembly and monthly air filter checks.
Q: Can it handle granite?
A: Yes, but optimal for concrete; granite may require higher-impact breakers.
A project in Texas used RB 777 units to process demolished building concrete at 50 tons/hour. The output fed a mobile crushing plant (MC120P) to produce ASTM C33-compliant aggregates for road base construction.
Parameter tables or detailed schematics can be provided upon request to illustrate full system configurations.
