Kemroc’s chain technology cuts trenches faster

Attachment specialist Kemroc has brought two new cutting systems to Intermat for the first time: its EK range for cutting trenches - and a new system within its Cut & Break (C&B) range which can be used for demolition of civil structures or for rock extraction. “This is the first time we have exhibited the chain cutter in France,” says Klaus Ertmer, Kemroc managing director and the inventor of all the attachments. “Because the cutting head has a chain in the middle, it means that you can dig very small, d
April 23, 2018 Read time: 3 mins
Attachment specialist 8755 Kemroc has brought two new cutting systems to Intermat for the first time: its EK range for cutting trenches - and a new system within its Cut & Break (C&B) range which can be used for demolition of civil structures or for rock extraction.


“This is the first time we have exhibited the chain cutter in France,” says Klaus Ertmer, Kemroc managing director and the inventor of all the attachments. “Because the cutting head has a chain in the middle, it means that you can dig very small, deep trenches with the machine.”

Emroc developed the machine in response to feedback from customers, says Ertmer. Standard cutter attachments have cutting wheels at either edge, and must be moved from one side to another to dig the trench, whereas with the EK tools, a straight cut is possible.  This requires less skill from the excavator or backhoe operator and also speeds up the process.

Ertmer started developing the EK range in 2012, perfecting the chain technology – which has been patented - in the Middle East. “It took us a long time to make the chain reliable,” says Ertmer. “It wasn’t easy.” To date, Kemroc has sold around 60 EK attachments, says Ertmer, largely in the Middle East but also in Europe too.

Visitors to Ertrmer’s stand, which is adjacent to that of its French dealer, Witek, can also see the combination of a slim DMW cutter wheel with its new C&B breaker tool. This system could be used to demolish reinforced concrete structures or for rock extraction.

The DMW wheel is first used to cut slots in the concrete or rock, with the spacing and depth dependent on the material being cut. The wedge-shaped breaker with picks at either side of its tip is then pushed into the grooves to force the concrete or rock apart.

“It makes a good alternative where drill and blast is not possible, due to restrictions on noise or vibration,” says Ertmer. “It can be used for breaking soft or medium-hardness rock.”

Though Ertner designed his first cutting tool attachment in 2000, Kemroc has only been in existence for just over a year - since Atlas Copco acquired Ertmer’s firm Erkat which supplies traditional trenching tools, without the central chain technology. Kemroc supplies markets around the world, says Ertner, including its home country of Germany, Switzerland, North Africa, Japan and the US.

For more information on companies in this article

Related Content

  • LeeBoy’s strong future, through Tier 4 Final investment
    March 20, 2019
    LeeBoy is seeing strong sales for its road machines at the moment, particularly in the US. And the firm’s early investment in fitting Tier 4 Final compliant engines has played a significant role Christopher Barnard is CEO of LeeBoy and commented, “The US has been strong. Demand is there and the infrastructure spending is there. It’s a good market. In our segment for commercial paving we’re doing very well.” The paver range is selling well and the firm’s 8520 model is a particularly strong seller. Barnard
    Read More
  • Using aspahlt testing equipment improves efficiency
    May 28, 2013
    From density tests on a Mongolian gold mine project to an all-singing, all-dancing asphalt tester, Kristina Smith reports on some of the latest new products in materials testing. Perhaps understandably, nuclear density gauges can present contractors with some order to move them at all. “One of the problems with nuclear soil gauges is the restrictions on movement,” said John Lamond, Manufacturing. “If you are a contractor projects cross-border, it’s a real challenge to move a nuclear density gauge around.”
    Read More
  • Zoomlion’s advanced lifting and concrete pumping technology
    October 14, 2013
    Zoomlion is a world leader in concrete pumping and lifting technology, with an array of highly sophisticated solutions – Mike Woof reports. Compared with other global manufacturers of construction machines, Zoomlion is a comparatively new entrant to the market as the firm is just over 20 years old. However, Zoomlion is now recognised as a world leader in the lifting and concrete pumping markets, developing innovative machines that push the boundaries of technology. The company has grown both organically and
    Read More
  • Sheffield duty for a Miller PowerLatch
    June 3, 2019
    The Miller PowerLatch Tilt was recently the attachment of choice for Yorkshire-based engineering consultancy JN Bentley, part of global engineering consultancy Mott MacDonald.
    Read More

Highlighted Content