Excavator hydraulic milling cutter KR 18

rotary

Overview In addition to the standard EK and the convertible EKT range, traditional style rotary drum cutters are available from KEMROC designated as the KR range of drum cutters. Designed to be incredibly robust, these attachments are ideal for use on short-arm excavators working in confined spaces, especially in tunnelling, and for the vibration-free and silent demolition of reinforced concrete structures. Effective dust control is particularly important in demolition and tunnelling applications; the KR range is designed for the installation of an optional, hydraulically controlled water jet dust control system.

Features

• Extra heavy-duty, rigid gear box housing
• Exceptional wear protection on the gearbox
• Equipped for optional water spray dust suppression system
• High torque motors for maximum cutting force
• Drums supported on heavy-duty bearings
• Protected hose management
• Works underwater without need for modifications

Application areas

• Tunnelling
• Demolition
• Trenching and pipeline work
• Renovating concrete and profiling
• Mining of soft minerals
• Underwater excavating

Models / Technical table (per model) Model | Compatible rotation unit (KRM) | Cutter drum diameter (C) | Cutting force at 380 bar | Cutting width (B) | Drum cutter length (A) | Max. oil flow | Max. operating pressure | Max. rock compressive strength | Number of picks | Pick box | Rated power | Recommended excavator weight | Recommended oil flow | Recommended rpm | Standard hole pattern | Standard pick | Torque at 380 bar | Weight per cutting width
KR 10 | KRM30 | 225 mm | 8.3 kN | 425 mm | 490 mm | 40 l/min | 400 bar | 20 MPa | 44 Pcs | PH 14 Type | 10 kW | 0,6 – 3 t | 15 l/min | 95 rpm | LB10 | 15/29/26/14 C | 900 Nm | 103 kg
KR 15 | KRM30 | 225 mm | 9.2 kN | 425 mm | 490 mm | 45 l/min | 400 bar | 20 MPa | 44 Pcs | PH 14 Type | 15 kW | 0,6 – 3 t | 20 l/min | 115 rpm | LB10 | 15/29/26/14 C | 1000 Nm | 103 kg
KR 18 | KRM30 | 225 mm | 18.8 kN | 425 mm | 490 mm | 90 l/min | 400 bar | 20 MPa | 44 Pcs | PH 14 Type | 18 kW | 2 – 4 t | 40 l/min | 115 rpm | LB10 | 15/29/26/14 C | 2100 Nm | 103 kg
KR 20 | KRM30 | 240 mm | 17.6 kN | 495 mm | 500 mm | 85 l/min | 400 bar | 20 MPa | 56 Pcs | PH 14 Type | 18 kW | 2 – 4 t | 35 l/min | 100 rpm | LB10 | 15/29/26/14 C | 2100 Nm | 130 kg
KR 35 | KRM35 | 370 mm | 23.9 kN | 620 mm | 845 mm | 115 l/min | 400 bar | 30 MPa | 64 Pcs | PH 20 Type | 30 kW | 5 – 8 t | 85 l/min | 115 rpm | LB10 | 16/46/38/20 C | 4400 Nm | 375 kg
KR 35C | KRM35 | 370 mm | 23.9 kN | 520 mm | 845 mm | 115 l/min | 400 bar | 30 MPa | 44 Pcs | PH 20 Type | 30 kW | 5 – 8 t | 85 l/min | 115 rpm | LB10 | 16/46/38/20 C | 4400 Nm | 310 kg
KR 45 | KRM40 | 400 mm | 30.7 kN | 600 mm | 990 mm | 145 l/min | 400 bar | 40 MPa | 44 Pcs | PH 20 Type | 45 kW | 9 – 15 t | 105 l/min | 105 rpm | LB20 | 16/46/38/20 C | 6100 Nm | 500 kg
KR 50 | KRM40 | 450 mm | 27.3 kN | 690 mm | 1014 mm | 130 l/min | 400 bar | 40 MPa | 44 Pcs | PH 22 Type | 45 kW | 9 – 15 t | 95 l/min | 95 rpm | LB20 | 12/45/38/22 HC | 6100 Nm | 550 kg
KR 65 | KRM40 | 587 mm | 41.8 kN | 805 mm | 1195 mm | 170 l/min | 400 bar | 60 MPa | 44 Pcs | PH 30 HD Type | 65 kW | 12 – 18 t | 145 l/min | 70 rpm | LB20 | 17/75/70/30 Q | 12300 Nm | 900 kg
KR 70 | KRM40 | 587 mm | 50.1 kN | 805 mm | 1195 mm | 190 l/min | 400 bar | 70 MPa | 44 Pcs | PH 30 HD Type | 70 kW | 15 – 23 t | 175 l/min | 70 rpm | LB20 | 17/75/70/30 Q | 14700 Nm | 900 kg
KR 80 | KRM50 | 587 mm | 53.6 kN | 805 mm | 1235 mm | 210 l/min | 400 bar | 80 MPa | 44 Pcs | PH 30 HD Type | 80 kW | 15 – 25 t | 185 l/min | 70 rpm | LB30 | 17/75/70/30 Q | 15700 Nm | 1070 kg
KR 110 | KRM60 | 720 mm | 52.7 kN | 1040 mm | 1470 mm | 250 l/min | 400 bar | 90 MPa | 60 Pcs | PH 32 HD Type | 110 kW | 20 – 35 t | 225 l/min | 70 rpm | LB40 | 19/75/70/30 Q | 19000 Nm | 2050 kg
KR 110 C | KRM60 | 720 mm | 52.7 kN | 880 mm | 1470 mm | 250 l/min | 400 bar | 90 MPa | 44 Pcs | PH 32 HD Type | 110 kW | 20 – 35 t | 250 l/min | 70 rpm | LB40 | 19/75/70/30 Q | 27200 Nm | 1850 kg
KR 120 | KRM60 | 720 mm | 75.6 kN | 1040 mm | 1470 mm | 360 l/min | 400 bar | 100 MPa | 60 Pcs | PH 32 HD Type | 120 kW | 25 – 45 t | 320 l/min | 70 rpm | LB40 | 19/75/70/30 Q | 27200 Nm | 2050 kg
KR 120 C | KRM60 | 720 mm | 75.6 kN | 880 mm | 1470 mm | 360 l/min | 400 bar | 100 MPa | 44 Pcs | PH 32 HD Type | 120 kW | 20 – 40 t | 320 l/min | 70 rpm | LB40 | 19/75/70/30 Q | 29800 Nm | 1850 kg
KR 150 | KRM60 | 720 mm | 82.7 kN | 1040 mm | 1470 mm | 360 l/min | 400 bar | 100 MPa | 60 Pcs | PH 32 HD Type | 120 kW | 30 – 50 t | 360 l/min | 65 rpm | LB40 | 19/75/70/30 Q | 29800 Nm | 2050 kg
KR 150 C | KRM60 | 720 mm | 82.7 kN | 880 mm | 1470 mm | 360 l/min | 400 bar | 100 MPa | 44 Pcs | PH 32 HD Type | 120 kW | 30 – 50 t | 320 l/min | 65 rpm | LB40 | 19/75/70/30 Q | 32700 Nm | 1850 kg
KR 155 | KRM60 | 720 mm | 90.7 kN | 1040 mm | 1470 mm | 360 l/min | 400 bar | 100 MPa | 60 Pcs | PH 32 HD Type | 120 kW | 30 – 50 t | 360 l/min | 65 rpm | LB40 | 19/75/70/30 Q | 32700 Nm | 1850 kg
KR 165 | KRM70 | 720 mm | 101.1 kN | 1250 mm | 1590 mm | 400 l/min | 400 bar | 110 MPa | 64 Pcs | PH 32 HD Type | 160 kW | 35 – 55 t | 400 l/min | 65 rpm | LB40 | 19/75/70/30 Q | 36400 Nm | 2800 kg
KR 165 C | KRM70 | 720 mm | 101.1 kN | 1050 mm | 1590 mm | 400 l/min | 400 bar | 110 MPa | 60 Pcs | PH 32 HD Type | 160 kW | 35 – 55 t | 400 l/min | 65 rpm | LB40 | 19/75/70/30 Q | 36400 Nm | 2550 kg
KR 175 | KRM70 | 720 mm | 119.4 kN | 1250 mm | 1590 mm | 420 l/min | 400 bar | 110 MPa | 64 Pcs | PH 32 HD Type | 160 kW | 40 – 55 t | 420 l/min | 55 rpm | LB40 | 19/75/70/30 Q | 43000 Nm | 2800 kg
KR 175 C | KRM70 | 720 mm | 119.4 kN | 1050 mm | 1590 mm | 400 l/min | 400 bar | 110 MPa | 60 Pcs | PH 32 HD Type | 160 kW | 40 – 55 t | 400 l/min | 55 rpm | LB40 | 19/75/70/30 Q | 43000 Nm | 2550 kg
KR 200 | KRM80 | 825 mm | 147.0 kN | 1330 mm | 1660 mm | 500 l/min | 400 bar | 140 MPa | 64 Pcs | PH 38 HD Type | 200 kW | 50 – 70 t | 430 l/min | 50 rpm | LB40 | 25/80/80/38 C | 60500 Nm | 3720 kg
KR 250 | KRM80 | 825 mm | 173.3 kN | 1330 mm | 1650 mm | 600 l/min | 400 bar | 140 MPa | 64 Pcs | PH 38 HD Type | 200 kW | 60 – 80 t | 580 l/min | 60 rpm | LB40 | 25/80/80/38 C | 71500 Nm | 3720 kg
KR 400 | (various) | 950 mm | 255.3 kN | 1650 mm | 2050 mm | 1200 l/min | 400 bar | 180 MPa | 88 Pcs | PH 38 HD Type | 400 kW | 80 – 125 t | 885 l/min | 45 rpm | LB50 | 25/80/80/38 C | 121500 Nm | 7100 kg
KR 400C | (various) | 950 mm | 255.3 kN | 1300 mm | 2050 mm | 1200 l/min | 400 bar | 180 MPa | 68 Pcs | PH 38 HD Type | 400 kW | 80 – 125 t | 885 l/min | 45 rpm | LB50 | 25/80/80/38 C | 143000 Nm | 6300 kg
KR 450 | (various) | 950 mm | 301.0 kN | 1650 mm | 2050 mm | 1200 l/min | 400 bar | 180 MPa | 88 Pcs | PH 38 HD Type | 400 kW | 100 – 125 t | 1045 l/min | 45 rpm | LB50 | 25/80/80/38 C | 143000 Nm | 7100 kg
KR 450C | (various) | 950 mm | 301.0 kN | 1300 mm | 2050 mm | 1200 l/min | 380–400 bar | 180 MPa | 68 Pcs | PH 38 HD Type | 400 kW | 100 – 125 t | 1045 l/min | 45 rpm | LB50 | 25/80/80/38 C | 143000 Nm | 6300 kg

Caractéristiques / spécifications techniques

• Series name: KR range (rotary drum cutters with spur gears)
• Number of models in the series: 28
• Gearbox: extra heavy-duty rigid housing with enhanced wear protection
• Hydraulics: high torque motors; max operating pressure typically 400 bar
• Optional equipment: hydraulically controlled water spray dust suppression
• Designed usage: short-arm excavators, confined spaces, tunnelling, demolition, trenching, underwater operations
• Picks: multiple pick configurations (PH and HD types) depending on model