Controls Group Vibrating hammer for P.R.D. specimens Vibrating hammer for P.R.D. specimens
Asphalt/bituminous mixture

Vibrating hammer for P.R.D. specimens

Main features

  • Constant speed with variable speed control
  • Durable aluminium housing
  • Soft grip and shock-absorbing handle
  • Easy to change tool by single-step holder
  • Variable lock mechanism to adjust tool at 12-step angle
  • Functional and robust design
General description
General description
Used for the compaction of Proctor, CBR soil specimens and P.R.D - Percentage refusal density test, using the 33-T0087/7 tamping foot  and the 33-T0087/8A shank. See accessories.
Double insulated motor. Plastic trigger handle. The hammer is supplied without support frame and tampers which have to be ordered separately.
  • Full load impact rate 2800 bpm
  • Overall dimensions (wxdxh): 130x530x380 mm
  • Weight approx.: 6.4 kg
More +

Ordering info

Vibration hammer for soil and asphalt compaction, 

Vibration hammer for soil and asphalt compaction, 


Supporting frame and tamping feet

Supporting frame for vibrating hammer series 33-T8702/Ax

Small tamping foot, 102 mm dia., head only

Large tamping foot, 146 mm dia., head only

33-T0087/8A  Shank, 300 mm long

P.R.D. mould

P.R.D. Split mould and baseplate

Used to determine the degree of compaction of asphalt for road quality control testing. The unit consists of a mould split vertically on one side together with a clamp-attached base plate. Plated for protection agaist corrosion.
  • Weight approx.: 12 kg


Contact Us

Controls Group USA, Inc.

2521 Technology Drive, Suite 203
Elgin, Il 60124.
Phone: +1 844 291 4305

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