Machine technical sheet

Brand: BOSCH
Model: GBH 4 TOP
Type: Rock drills and rotary hammers
Built in: n.d.
Weight: 4.2 kg
Power: 0.75 kW
Power supply: Electrical (220V-380V)
Anti-vibration devices: Absent
NOTES: Rubber handle
Source of the data: Acquisito sul campo da misuratore


Declared values as set forth in the standard EN 50144-2-6 ( x 2,0 Hammer drilling, Chiseling, Drilling without impact - x 1,5 Breaking concrete/masonry )
CONDITIONS	MATERIAL	ACCESSORY	VALUE	K⁽¹⁾	Note
NOT ASSESSED	NOT ASSESSED	NOT ASSESSED	11 m/s²

_{(1) Expanded uncertainty}

Measurements in the field (Click to view the measurements in the field)

17.1 m/s²

WORK ACTIVITY: DRILLING
WORKED MATERIAL: Concrete
ACCESSORY: Pick, moil point
SECTOR: Building constructions

Reference person: CPT Torino ([email protected])
Location: CASALBORGONE (TO) on 09/01/2007
Features of the accessory: Pick, moil point

Values related to the vibration worst case handle ( Anterior )

A _hx (Mean) 7.7 m/s²	A _hy (Mean) 6.3 m/s²	A _hz (Mean) 9.9 m/s²	A _{hv sum} 14 m/s²
Standard deviation 0.62 m/s²	Standard deviation 0.46 m/s²	Standard deviation 2.02 m/s²	Standard deviation x 1,645: 3.1 m/s²
Mean + Standard deviation: 8.3 m/s²	Mean + Standard deviation: 6.8 m/s²	Mean + Standard deviation: 11.9 m/s²	A _{hv sum} + (Dev. std. x 1,645): 17.1 m/s²