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 weightModelOperating WeightNumber of PicksMax Torque/Cutting ForceDrum Size Width(mm)Oil FlowMax PressureCircuit Requirments
8 – 15 TonER 250600 Kg443500-5200/15,600-23,200680 mm65 – 85 l/min350 BarStandard
13 – 22 TonER 6501350 Kg489,400-14,000/32,700-48,700800 mm140-190 l/min350 BarStandard