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SPECIALISED EXCAVATOR ATTACHMENTS

EK Chain Cutter

EK Chain Cutter range from KEMROC

THE EK RANGE OF CHAIN CUTTERS IS THE FIRST OF ITS TYPE ON THE MARKET. DESIGNED FOR USE ON EXCAVATORS FROM 1.5 TO 70 TONS AND THEY ARE IDEAL FOR CUTTING ROCK WITH A UNIAXIAL COMPRESSIVE STRENGTH UP TO 140MPa.

They are efficient and vibration-free attachments for the excavation of deep narrow trenches with the optimal trench profile. Trench width starts from 370 mm without a maximum limit. Another application is the mining of medium-hard minerals with compressive strength from 15 to 60 MPa, where drilling and blasting is not possible.

The continuous chain driven by the cutter drums removes the material automatically from the space between the cutter drums, As a result, KEMROC chain cutters excavate trenches no wider than absolutely necessary. With standard drum cutters, the need to remove this material on technical grounds always results in trenches wider than the cutter but keeping trenches to the minimum width possible saves unnecessary transport costs for removal of cut material and fill material becomes cheaper. The material produced by the chain cutter is fine-grained and is ideal for use as fill.

EK chain cutters reduce wear and tear on the excavator swing gear. In addition, they give a 40% energy saving for equivalent production rates compared to conventional rotary drum cutters without the central chain.

ModelRecommended excavator weightRated powerDrum cutter length (A)Cutter head width (B)Cutter drum diameter (C)Width of gearbox (D)Maximum torque at 380 barMaximum cutting force at 380 barMaximum uniaxial compressive strength
EK 151.5– 3 t15 kW557 mm370 mm231 mm370 mm600 Nm5,195 N15 MPa
EK 202 – 4 t22 kW700 mm480 mm260 mm480 mm1,000 Nm7,692 N25 MPa
EK 405 – 10 t44 kW1,500 mm500 mm600 mm450 mm5,700 Nm19,000 N30 MPa
EK 6010 – 17 t60 kW1,900 mm500 mm800 mm450 mm11,000 Nm27,500 N50 MPa
EK 10018 – 30 t100 kW1,900 mm600 / 700 / 800 mm800 mm550 mm18,300 Nm46,000 N80 MPa
EK 11025 – 32 t110 kW1,900 mm600 / 700 / 800 mm800 mm550 mm24,500 Nm61,000 N80 MPa
EK 14030 – 45 t140 kW2,050 mm800 / 900 / 1,000 mm850 mm700 mm26,000 Nm61,000 N100 MPa
EK 15035 – 50 t150 kW2,050 mm800 / 900 / 1,000 mm850 mm700 mm30,000 Nm71,000 N100 MPa
EK 16035 – 50 t150 kW2,050 mm800 / 900 / 1,000 mm850 mm700 mm34,000 Nm80,000 N120 MPa
EK 22050 – 70 t220 kW2,400 mm920 mm994 mm900 mm63,000 Nm126,761 N140 MPa
ModelRecommended rotation speedRecommended oil flowMaximum oil flow at 10 barMaximum operating hydraulic pressureWeightNumber of picks in cutter drumsNumber of picks in the cutter chainStandard pick
EK 15140 rpm15 – 30 l/min40 l/min250 bar90 kg48 pcs29 pcsER 11/28/24/12 C
EK 20140 rpm20 – 40 l/min50 l/min300 bar170 kg44 pcs27 pcsER 16/29/25/14 C
EK 4090 rpm70 – 90 l/min120 l/min380 bar900 kg52 pcs49 pcsER 16/46/38/20 C
EK 6080 rpm130 – 160 l/min220 l/min400 bar1,600 kg56 pcs55 pcsER 19/48/32/20 H
EK 10070 rpm180 – 240 l/min260 l/min400 bar2,400 – 2,600 kg28 / 44 / 52 pcs54 pcsER 17/75/70/30 Q
EK 11065 rpm210 – 260 l/min300 l/min400 bar2,400 – 2,600 kg28 / 44 / 52 pcs54 pcsER 17/75/70/30 Q
EK 14065 rpm260 – 300 l/min420 l/min400 bar3,600 – 3,800 kg44 / 48 / 56 pcs63 pcsER 17/75/70/30 Q
EK 15060 rpm280 – 320 l/min450 l/min400 bar3,600 – 3,800 kg44 / 48 / 56 pcs63 pcsER 17/75/70/30 Q
EK 16060 rpm290 – 330 l/min450 l/min400 bar3,600 – 3,800 kg44 / 48 / 56 pcs63 pcsER 17/75/70/30 Q
EK 22040 rpm420 – 550 l/min800 l/min400 bar6,000 / 6500 kg44 / 60 pcs58 pcsER 25/80/80/38 S

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