技术细节
| 混凝土钻孔直 径（最大） |
32 mm |
| 木材钻孔直径（最大） |
13 mm |
| 钢材钻孔直径（最大） |
13 mm |
| 混凝土最佳应用范围 |
14 - 25 mm |
| 额定输入功率 |
900 W |
| 正向/反向操作 |
Y |
| 额定转速 |
760 RPM |
| 冲击率 |
3600 bpm |
| 冲击能量 |
5 J |
GBH 4-32 DFR Professional, Set
The GBH 4-32 DFR Professional is the ideal rotary and demolition hammer for the versatile professional. Whether chiselling, drilling holes with large and small diameters or with a core cutter, the Bosch Hammer masters all tasks. Even drilling in metal or wood is possible because the SDS-plus drill chuck can be replaced with the quick-change chuck included in the set.
The new Bosch Hammer offers the most power and the lowest vibration in its class. The powerful 900-watt motor and single impact force of five joules ensure maximum work progress, even when drilling large diameters or when performing demanding chiselling work. The GBH 4-32 DFR Professional is specially designed for drilling holes in concrete with diameters between 14 and 25 millimetres. Working with core cutters up to 90 millimetres in diameter is equally easy with the new rotary hammer. This makes the Bosch Hammer the ideal power tool for plumbers, electricians, bricklayers and carpenters working on construction sites. And tilers can quickly remove tiles from walls and floors with the GBH 4-32 DFR Professional and the self-sharpening Bosch tile chisel.
To considerably reduce the strain on the user and to optimise his efficiency, Bosch has built the effective "Vibration Control" into the hammer. This vibration damping system enables the GBH 4-32 DFR Professional to achieve a vibration value of only 8 m/s2 (triaxial measurement value for hammer drilling as per EN 60745), which is lower than on any other 4kg hammer. The success in damping vibrations is achieved in two stages: the air buffer, which is considerably larger than that of conventional hammer mechanisms, reduces the air pressures in the hammer mechanism. This counteracts the oscillations like a spring and damps the vibrations where they originate. In the second stage of the "Vibration Control", a leaf spring and two swivel joints decouple the main handle from the machine.
