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Affected electrical tools

Which tools are affected by the guidelines?

Generally speaking, all tools are affected by the guidelines.

Here is a selection of normal vibration values:

  • Rotary drill, ca. 15 – 20 m/s²
  • Impact drill, ca. 15 – 20 m/s²
  • Angle grinder, ca. 5 – 10 m/s²
  • Hedge trimmer, ca. 2,5 – 5 m/s²
  • Sander, ca. 3 – 10 m/s²
  • Disc sander, ca. 5 – 10 m/s²
  • Sabre saw, ca. 10 – 30 m/s²

All employers should consider how much time their employees spend daily in the active operation of vibrating devices.

Only the actual operating time (i.e. the time when the machine is switched on) should be considered during the calculation of the active operating time.

Normal effective operating times can be found in the following table:

Hot air guns 0,25 h    
Machine type Normal craftsmen applications Excessive craftsmen applications Industry applications
Angle grinders < 1500 W 0,5 h 1,5 h 3 h
Angle grinders > 1500 W 0,5 h 1 h 2 h
Straight grinders 0,25 h 0,5 h  
Chiseling hammers < 12 kg 0,25 h 0,5 h 1,5 h
Demolition hammers > 12 kg 0,5 h 0,75 h  
Rotary hammers < 4 kg 0,25 h 0,5 h  
Rotary hammers > 4 kg 0,25 h 0,5 h 1 h
Combination hammers 0,25 h 0,5 h  
Percussion drills 0,15 h    
Drills 0,25 h 0,5 h  
Screwdrivers 0,25 h 1 h  
Cordless screwdrivers 0,25 h 0,5 h  
Impact wrenches 0,15 h 0,5 h  
Circular saws 0,25 h 0,5 h  
Reciprocating saw 0,25 h 0,5 h  
Jig saw 0,15 h 0,5 h  
Chain saws 0,5 h    
Sabre saws 0,15 h 0,5 h  
Orbital sanders 0,5 h 1 h  
Belt sander 0,25 h 0,5 h  
Delta sander 0,5 h    
Polishers 0,75 h 1,5 h  
Hedge trimmers 0,75 h 1,5 h  
Wall chasers 0,5 h 1,5 h  
Planers 0,25 h 0,5 h  
Nibblers 0,25 h 0,5 h  
Routers 0,25 h 0,5 h  

Source: CEN


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A table with how long tools can be operated on average can be found here. [...>>]