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

  • Atlas Copco’s cutting in site
    June 25, 2012
    Atlas Copco (AC) Construction & Mining has unveiled a new combi cutter, the CC 950, and two new bulk pulverisers. To enhance the appeal of the new products, AC has created a dedicated microsite to offer customers easy access to information about its entire silent demolition range. The CC 950 features a 360° hydraulic rotation device, said to enable attachments to be placed in position quickly and easily. With an operating weight of 920kg, the CC 950 can be fitted onto carriers between 9 and 16tonnes, and ex
    Read More
  • Rock Hawg shows cutting edge
    February 28, 2012
    A new machine described as an excavator, trencher and crusher is the first of its type operating in the UK and Europe. Westquay Trading, the exclusive distributors for Tesmec products, has introduced the first 126tonne Rock Hawg, which has been sold to contractor A J Gammond of Malvern, England, pioneers of the use of the machines in the UK and Ireland.
    Read More
  • Epiroc showcases innovative SB 1102 ‘Solid Body’ breaker
    April 25, 2018
    Epiroc’s new SB 1102 solid body breaker is said to possess an innovative ‘Solid Body’ design guaranteeing reliability and optimum uptime. Launched earlier this year and the heaviest of nine SB body breakers said to be ideal for civil engineering, trenching and construction and demolition customers, the 1.06 tonne attachment can be fitted to 13-24 tonne class excavators. The SB body breakers’ ‘Solid Body’ concept eliminates common parts to enable high durability and a slim, compact, lightweight design.
    Read More
  • Emergent aggregates market vitality
    March 12, 2014
    New research shows the vital importance of emerging markets to the aggregate production industry, while leading aggregate production equipment manufacturers have brought new cutting-edge models onto the market. Meanwhile, recent equipment purchases are playing a key role in boosting the commercial success of customers in France and Malta. Guy Woodford reports Demand for construction aggregates in the Asia/Pacific and Africa/Middle East regions is fuelling global aggregates sales growth, according to the
    Read More

Highlighted Content