An ER 250-4 L mounted on a t ton excavator working on piles on a building site in Vienna. Time taken per pile was approx. 30 minutes.

An ER 400-2 L can be easily and quickly converted to a rotary head capable of drilling holes up to 600 mm diameter and 2.5 m deep using augers.

For high precision work: A cutting head with closely spaced picks enables this ER 650-3 P to produce an excellent surface finish. The hydraulic rotation unit allows the drum cutter to follow the wall profile excatly. An optional depth control unit is planned for the future.

Rotary drum cutters can be used up to 30 m under water without the need for any modifications. An ER 1500-1 XL being used to deepen a harbour in Batam, Indonesia in preparation for the larger oil tankers planned for the future.

An ER 600-2 on a diving expedition off the coast of Canada. The modified drum cutter is mounted on a special underwater excavator to excavate soft rock layers in water up to 500 m deep.