Demolishing concrete using the Cut & Break method

At the Kassel sewage treatment plant, rainwater overflow basins are being replaced. The ring-shaped edge of the concrete basin is cut with a DMW 220 cutter wheel.

The city of Kassel in the German state of Hesse is gearing up for the future. At the sewage treatment plant, two aging stormwater overflow basins are being replaced by larger ones. To demolish the massive, ring-shaped concrete rims of the basins, the contractor Schnittger decided to use technology from KEMROC. Last year, a DMW 130 cutter wheel was used to demolish the rim of the first basin. This summer, a larger DMW 220 cutter wheel was used on the second basin to complete the work faster …

Economical trenching in rock

Prior to the construction of a large factory and warehouse, a KEMROC EKT 100 milling machine on a 25-tonne excavator is used to excavate trenches and pits for strip and individual footings.

At an industrial park at its hometown, Haiger in the German state of Hesse, the construction company Wirth secured a major contract. Before construction of a new factory and warehouse could start, they had to prepare the site and install foundations. A 25-tonne excavator with a KEMROC EKT 100 milling attachment was used to work out the footings through solid and fissured rock – saving time and money compared to the use of hammer and bucket.

Transforming a bunker to a residential complex

Concrete demolition with hydraulic excavators and KEMROC milling attachments: A former high-rise bunker is being transformed into a residential complex.

In the German city of Koblenz, a high-rise World War II bunker is given a new lease of life. The mighty building made of solid concrete is to be transformed into a high-quality residential complex. To start this transformation, contractor HR Abbruch had to make some structural changes to the building. Milling technology from the manufacturer KEMROC played a key role in the initial phases of this project. A large excavator with milling attachment completed demolition work with low noise and low vibration levels while in close proximity to neighbouring residential buildings.

Demolition project in the city

A 45 and a 60 tonne excavator with attachments from KEMROC play a major role at a CK Abbruch und Erdbau project in Weingarten.

CK Abbruch und Erdbau confirmed their competence in low noise and low vibration
demolition at a current project in Weingarten in southern Germany. In the city centre,
the foundations of a former industrial complex had to be demolished. Using KEMROC
drum cutter and cutter wheel attachments mounted on hydraulic excavators, the heavy
concrete segments are demolished economically and in a way that is friendly for the
environment and for neighbouring residents.

Facade milling with precision

While renovating of a school building, the contracting company used a KEMROC EX 60 HD planer.

One part of the renovation process of a school in Giessen (Germany) was to replace the building’s façade. As the reinforced concrete shell could not be removed by hand, Leinweber, a construction and demolition company, rented a KEMROC EX 60 HD milling attachment for its excavator. With this combination of equipment, the building’s outer shell was removed with precision and many times faster than would have been possible by hand.

Offset cutter drums leave no gaps

KEMROC adds to its extensive range of excavator cutter attachments with the innovative KRC range of rotary or double head drum cutters.

Once again, KEMROC design engineers have come up with a clever way to improve
the performance of rotary drum cutters for trenching. Rotary drum cutters in the KRC
range have two cutter drums set at an angle to one another so that there is very little
space between the carbide tips of the picks as they turn. As a result, there is an almost
continuous cutting pattern along the full width of the cutter head thereby eliminating
or reducing to a minimum the ridge of rock or concrete that is left when working with
a standard design rotary drum cutter. This saves time and energy and keeps the trench
width to a minimum.

Saving time dressing natural stone

A KEMROC ES 110 HD universal attachment with cutter wheel (1,000 mm cutting depth) is now being used at Fark Naturstein in the Münster region of Germany.

Breaking out large pieces of sandstone and dressing them down into manageable blocks suitable for the processing plant – this used to require a lot of strenuous manual labour and time at the natural stone producer Fark Naturstein located at Havixbeck in the Munsterland of Germany. The process has recently been mechanised and made significantly easier. Instead of drilling and using wedge and feathers, the blocks are now being cut with precision using a KEMROC ES 110 HD universal cutter attachment mounted on a 24-ton excavator.

KEMSOLID – a new subsidiary of KEMROC

EXPERTISE IN CIVIL ENGINEERING

KEMROC is bundling all its know-how in ground stabilisation based around the KSI soil mixing attachment into its new subsidiary KEMSOLID. The focus of this new division is not only confined to the development, testing and manufacture of soil mixing attachments but also includes providing the company’s knowledge and experience in soil stabilisation projects to help customers find the best solutions for their own projects.

SMW cutter wheel on a 16-ton excavator

EXPANDING HIGHSPEED BROADBAND NETWORK

The company Bautechnik Schödl from Grimma is involved in the expansion of the high-speed broadband network in the Schneeberg area of Saxony. In the first phase 26 km of conduit is being laid to connect households to the fiber optic network. The highest productivity rate is being achieved using a KEMROC SMW 80 cutter wheel on one of their 16-ton wheeled excavators.