Rock Wheels

Rock wheels is a powerful excavation tool, used in noise and vibration sensitive areas.

Our range of Erkat Rock Wheels offer more accuracy than breakers and are ideal for trenching in hard, rocky conditions. They can also be used for tree stump removal.

Unlike other rock wheels, the Erkat rock cutters have the motor mounted on the side and not contained in the rotating drum. This patented design means the motor is protected from unnecessary damage.

Astra Site Services are the UKs sole distributor for Erkat rock cutting products.


  • Trenching, quarrying, tunnelling and rock excavation
  • Tree stump removal
  • Can be used to lower or level concrete or rocky surfaces
  • Descaling walls in tunnels
  • Precision excavation (when pipes etc must be avoided)
  • Available to fit 8-18 ton excavators

Manufacturer: Erkat.

Excavator requirements: Standard breaker circuit.

Technical Specification

To Fit Excavator weight Model Operating Weight Number of Picks Max Torque/Cutting Force Drum Size Width(mm) Oil Flow Max Pressure Circuit Requirments
8 – 15 Ton ER 250 600 Kg 44 3500-5200/15,600-23,200 680 mm 65 – 85 l/min 350 Bar Standard
13 – 22 Ton ER 650 1350 Kg 48 9,400-14,000/32,700-48,700 800 mm 140-190 l/min 350 Bar Standard