Machine technical sheet

Brand: BOSCH
Model: GBH 4 DFE
Type: Rock drills and rotary hammers
Built in: n.d.
Weight: 3.9 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)

10.3 m/s²

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

Reference person: CPT Perugia ([email protected])
Location: SPOLETO (PG) on 13/06/2007
Features of the accessory: Pick, moil point

Values related to the vibration worst case handle ( Left )

A _hx (Mean) 6.3 m/s²	A _hy (Mean) 3.6 m/s²	A _hz (Mean) 5.6 m/s²	A _{hv sum} 9.1 m/s²
Standard deviation 0.52 m/s²	Standard deviation 0.29 m/s²	Standard deviation 0.52 m/s²	Standard deviation x 1,645: 1.21 m/s²
Mean + Standard deviation: 6.8 m/s²	Mean + Standard deviation: 3.9 m/s²	Mean + Standard deviation: 6.1 m/s²	A _{hv sum} + (Dev. std. x 1,645): 10.3 m/s²