Breaker (hydraulic)
Subclass of tool
From Wikipedia, the free encyclopedia
A breaker is a powerful percussion hammer fitted to an excavator for demolishing hard (rock or concrete) structures. It is powered by an auxiliary hydraulic system from the excavator, which is fitted with a foot-operated valve for this purpose. Additionally, demolition crews employ the hoe ram for jobs too large for jackhammering or areas where blasting is not possible due to safety or environmental issues.
Breakers are often referred to as "hammers", "peckers", "hoe rams" or "hoe rammers". These terms are popular and commonly used amongst construction/demolition workers.[1][2] The first hydraulic breaker, Hydraulikhammer HM 400, was invented in 1967 by German company Krupp in Essen (today Swedish company Epiroc).[3]
Notable manufacturers
See also
| Suitable Excavator (tonne) | Suitable Excavator (lbs) | Chisel Diameter (mm / inches) | Total Weight (kg) | Total Weight (lbs) | Overall Length (mm / inches) | Operating Pressure (kg/cm²) | Oil Flow (l/min) | Impact Rate (BPM) | Energy Class (ft lb) | Hose Diameter (inch) |
|---|---|---|---|---|---|---|---|---|---|---|
| 0.8 - 2.0 | 1760 - 4400 | 40 / 1.75 | 115 | 253 | 983 / 38.55 | 90 - 120 | 15 - 25 | 800 - 1400 | 150 | 1/2 |
| 2.0 - 4.0 | 4400 - 8800 | 45 / 1.95 | 115 | 253 | 983 / 38.55 | 90 - 120 | 15 - 25 | 800 - 1400 | 650 | 1/2 |
| 2.0 - 4.0 | 4400 - 8800 | 53 / 2.08 | 180 | 396 | 1100 / 43.14 | 90 - 120 | 15 - 25 | 700 - 1200 | 650 | 1/2 |
| 4.0 - 7.0 | 8800 - 15400 | 75 / 2.95 | 421 | 926 | 1700 / 66.92 | 110 - 160 | 30 - 45 | 500 - 800 | 1000 | 1/2 |
| 7.0 - 11.0 | 15400 - 24200 | 85 / 3.34 | 577 | 1269 | 1920 / 75.59 | 120 - 170 | 45 - 85 | 400 - 700 | 1500 | 1/2 |
| 11.0 - 18.0 | 24200 - 39600 | 100 / 3.93 | 973 | 2140 | 2260 / 88.97 | 150 - 170 | 80 - 120 | 400 - 700 | 4000 | 3/4 |
| 19.0 - 28.0 | 41800 - 61600 | 140 / 5.50 | 1989 | 4375 | 2810 / 110.62 | 160 - 180 | 130 - 170 | 400 - 600 | 6000 | 1 |
| 28.0 - 40.0 | 61600 - 88000 | 155 / 6.10 | 2950 | 6490 | 3152 / 123.61 | 160 - 180 | 170 - 220 | 250 - 400 | 8000 | 1 |
| 40.0 - 55.0 | 88000 - 121000 | 175 / 6.88 | 4210 | 9262 | 3400 / 133.85 | 160 - 180 | 210 - 290 | 200 - 350 | 10000 | 1.25 |
