Cutting is the key for the perfect trench


Easy to get with a Rockwheel rotary drum cutter!

At a jobsite in Assamstadt (Germany) the company Schwarz GmbH from Stachenhausen used a Rockwheel rotary drum cutter for the very first time. They had less work with the Rockwheel and reached its goal faster.


The effective and efficient Rockwheel D20 saves time and money by speeding up time-consuming processes on construction sites. 
At the jobsite in Assamstadt work was carried out on the expansion of a storage building for a woodworking company. Foreman Oswald Lienhardt decided to use a Rockwheel D20 for trenching on this project due to the 100 cm drum width of the Rockwheel, which ensured accurate work to achieve the desired dimensions.

Jochen Palinkas, the machine operator ran the Rockwheel fast and accurately through the layered rock soil. Both men are extremely satisfied with the outcome and the performance of the Rockwheel rotary drum cutter- they will definitely be using it more often in the future.

Before using a Rockwheel, the company used a hydraulic hammer as well as a ripper tooth for excavation and trenching. Using these attachments for this kind of work creates a funnel shaped trench, which often leads to undesirable breakouts and significant filling work on the sidewalls. Instead of ripping or breaking the rock the Rockwheel cuts through the material and leaves an even sidewall structure, working 3-5 times faster than a ripper tooth or a hydraulic hammer. 
The low noise and low vibration level of the Rockwheel means it can be used in residential areas without causing significant nuisance for the neighbourhood.

The construction team found the precision and quality of the outcome particularly impressive. “With the Rockwheel I can mill off just 1 cm if the foreman asks me to do so“, Jochen Palinkas points out. Approximately 480 m of trenching was done with the Rockwheel D20 in the layered clay rock soil. “Another great advantage of the Rockwheel is the reusable excavated material“, says Oswald Lienhardt. “It is almost like gravel and can be used to back-fill the trench later.” 
The costly disposal of the excavated materials produced by a ripper tooth or a hydraulic hammer is a thing of the past with the Rockwheel rotary drum cutter.

When filling the trench, the homogeneity and the consistency of the material are the main factors – determined by the grain size and mixture.

The Rockwheel leaves a consistently small-sized grain similar to gravel, which can be used directly for refilling the trench. When solidifying the soil the uniformity of the material plays an important role in preventing the emergence of bumps or sink holes on the surface once the ground settles.

Precise and efficient work is the goal and this is easily achievable in excavation with a Rockwheel rotary drum cutter.