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

  • Vacuworx offers the HL Series Hydraulic Barrier Lifters
    May 22, 2018
    Highway construction projects can be particularly challenging when space is limited, roads are crowded and time is short. To meet these challenges, the US company Vacuworx has developed the HL Series Hydraulic Barrier Lifters. Vacuworx describes the lifters as “a smarter way to handle concrete barriers”. The traditional method of moving concrete road barriers with slings and chains is slow and lacks control, not to mention increasing the dangers of accidents for employees. Designed for use with a variety
    Read More
  • Bridge of international accord from Russia-China
    May 29, 2018
    A new bridge project joining China and Russia is a sign of international accord between the two nations – Mike Woof writes A new bridge spanning what China calls the Heilongjiang River and which is known as the Amur River in Russia, is a clear sign of an important international accord between the two countries. Discussions over the bridge project were first started between China and Russia in the 1980s, with both nations seeing many changes in leadership since that time. But while the political discussion
    Read More
  • Doosan Portable Power wins €2m Saudi Arabia compressor order
    April 26, 2018
    Doosan Portable Power (DPP) has won an order worth almost €2 million for portable compressors in Saudi Arabia. The compressors have been purchased by Jeddah-based rental business, EJAR, through TAMGO, the authorised dealer for Doosan compressors, lighting towers and construction tools in Saudi Arabia. The order is for 50 Doosan 9/235HA portable compressors each providing 23.4m³/min of compressed air at a rated operating pressure of 8.6bar.
    Read More
  • New asphalt paving machines are coming to market
    April 7, 2017
    Several of the key asphalt paver manufacturers are rolling out new models that deliver increased performance and capabilities - Mike Woof writes The pace of development in the asphalt paving equipment sector is high, with a wide array of new machines coming to market. All of the major manufacturers are introducing new models for 2017, while there are also key business developments that are ongoing. One of the most notable business moves in the road machinery sector is the agreement between the Fayat G
    Read More

Highlighted Content