cheap break hammer handheld concrete breaker B70
B70 B90 is mainly used for breaking work,demolition work, road maintenance or mining and construction project.
Big impact power and low air consumption, easy for operation; mounted with advanced silencer which ensures compliance with noise standard. It is environmental friendly and protect operator’s health. Built in lubrication systems increase service life.
| Model | B90 | B70 |
| Weight | 34kg | 29kg |
| Dimension | 745*496*162mm | 725*496*162mm |
| Cylinder dia. | 58mm | 52mm |
| Working pressure | 0.4-0.63Mpa | 0.4-0.63Mpa |
| Impact energy | ≥100J(0.63Mpa) ≥96J(0.6Mpa) ≥80J(0.5Mpa) ≥70J(0.4Mpa) | ≥78J(0.63Mpa) ≥74J(0.6Mpa) ≥59J(0.5Mpa) ≥44J(0.4Mpa) |
| Impact frequency | ≥18.3Hz(0.63Mpa) ≥18Hz(0.6Mpa) ≥17Hz(0.5Mpa) ≥16Hz(0.4Mpa) | ≥18.5Hz(0.63Mpa) ≥18.2Hz(0.6Mpa) ≥16.8Hz(0.5Mpa) ≥15.4Hz(0.4Mpa) |
| Air consumption | ≥42L/s(0.63Mpa) ≥39L/s(0.6Mpa) ≥35L/s(0.5Mpa) ≥31L/s(0.4Mpa) | ≥32L/s(0.63Mpa) ≥30.3L/s(0.6Mpa) ≥24L/s(0.5Mpa) ≥17.7L/s(0.4Mpa) |
| ≥2.52m³/min(0.63Mpa) ≥2.34m³/min(0.6Mpa) ≥2.1m³/min(0.5Mpa) ≥1.86m³/min(0.4Mpa) | ≥1.92m³/min(0.63Mpa) ≥1.8m³/min(0.6Mpa) ≥1.5m³/min(0.5Mpa) ≥1.1m³/min(0.4Mpa) | |
| Air pipe inner dia. | 19mm (3/4inch) | 19mm (3/4inch) |
| Shank size | 32*152mm (1-1/4X6inch) 28*152mm (1-1/8X6inch) | 32*152mm (1-1/4X6inch) 28*152mm (1-1/8X6inch) |

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