Cutting is the Key for the Perfect Trench

Published: 30/9, 2019

At a jobsite in Assamstadt, Germany, Schwarz GmbH used a Rockwheel cutting unit for the very first time. The Rockwheel D20 was perfect for their trench excavation and other supply lines.  

The project called for expanding a storage building for a woodworking company. Foreman Oswald Lienhardt decided to use a Rockwheel D20 for trenching on this project due to its 39-in (100-cm) width, which ensured accurate work to achieve the desired dimensions without any costly filling work. Machine operator Jochen Kalinkas ran the Rockwheel fast and accurately through the layered rock soil. 

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 side walls.  

Instead of ripping or breaking the rock the Rockwheel cuts through the material and leaves an even sidewall structure, working up to five 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 neighborhood.  
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,” says Kalinkas.  

Approximately 1,575 ft (480 m) of trenching was performed with the Rockwheel D20 in the layered clay rock soil. 

 “Another great advantage of the Rockwheel is the reusable excavated material”, says Lienhardt. “It is almost like gravel and can be used to back-fill the trench later.” 

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.

See all news »

Cookies and Data Collection

This website is using cookies. A cookie is a small text file that the website requests to store locally on the visitor's computer. It contains a certain amount of information and a timestamp.

Cookies on this website

Temporary Cookies

We use temporary cookies ("sessions") in order to provide a functioning website. These cookies only contains a unique identifier and a timestamp, while any personal data is stored on our server. These cookies expires within one hour, and will be automatically deleted when you exit your webbrowser.

Less temporary cookies

In order to remember wether you have accepted cookies or not, we need to store a cookie containing a timestamp and a code. If you log in as a user on our website, you are also able to select wether you want to remain logged in or not. In case you decide to remain logged in, we will store another cookie on yuor device, also containing a code and a timestamp. No personal data is saved in these cookies. These cookies will expire and be automatically deleted within 30 days of your last visit, and you can delete them manually from within the webbrowser's settings.

Cookie for Google Analytics

We use Google Analytics in order to improve our vistor's experience on our website. We do not save PII (Personally Identifiable Information) using Google Analytics. To read more about the cookies stored, read more at Google Developers.

Inactivation of cookies

If you do not wish to accept cookies from our website (or others), you may turn it off in your webbrowsers security/privacy settings. You can also let your browser inform you each time a website tries to store a cookie, or choose to remove cookies that has already been stored.

See your browsers help pages in order to find out more on how to change these settings (the instructions will differ depending on what browser, operating system and what versions you are using).

Data Collection & Data Storage

The website may use Google Analytics and similar services to collect data about your visit on this website. No personal data is stored, only information about the visit itself, such as link clicks, page views, how long a certain page has been viewed and similar. The information can be used by us to analyze how visitors use our website, as well as to improve and optimize content and functionality on the website in the future. The information may also be used by Google (or an equivalent provider) to optimize information and ads, so that you receive more relevant/personalized search results or ads in the provider's other services.


This website use cookies
This website use cookies and data gathering to bring you the best possible experience.
You must accept this in order to get access to our content. - Read more »

Accept all Only necessary