Excavator hydraulic milling cutter KRD 150

rotary

Product overview
The KRD range of direct-drive drum cutters are compact, lightweight and designed for heavy-duty excavator attachment use. Optimised for long-arm excavators, these drum cutters suit demolition, shaft sinking and ground stabilisation tasks as well as concrete renovation and underwater excavation. Oversized bearings support the cutter drums to extend service life and reliability.

Features

• Compact, space-efficient design for long-arm excavators
• Direct drive with oversized bearings supporting cutter drums
• High power-to-weight ratio across the range
• Protected hose management to reduce damage and wear
• Operational to 30 meters underwater without modifications

Application areas

• Demolition with long-arm excavators
• Ground stabilisation and soil improvement
• Concrete renovation and profiling
• Trenching and pipeline work
• Mining of soft minerals, tunnelling and shaft sinking
• Underwater excavations and marine works

Models — key specification matrix
Header: Model | Compatible rotation unit (KRM) | Cutter drum diameter C (mm) | Cutting force @380 bar (kN) | Cutting width B (mm) | Drum cutter length A (mm) | Max. oil flow (l/min) | Max. operating pressure (bar) | Max. rock compressive strength (MPa) | Number of picks | Pick box | Rated power (kW) | Recommended excavator weight | Recommended oil flow (l/min) | Recommended rpm | Standard hole pattern | Standard pick | Torque @380 bar (Nm) | Weight per cutting width (kg)
KRD 15 | KRM30 | 300 | 6.9 | 500 | 511 | 40 | 400 | 20 | 66 | PH 14 Type | 15 | 0.5 – 2 t | 25 | 145 | LB10 | 15/29/26/14 C | 1000 | 135
KRD 18 | KRM30 | 300 | 14.1 | 500 | 511 | 65 | 400 | 20 | 66 | PH 14 Type | 18 | 2 – 4 t | 40 | 115 | LB10 | 15/29/26/14 C | 2100 | 135
KRD 30 | KRM35 | 370 | 23.9 | 629 | 588 | 100 | 400 | 30 | 56 | PH 20 Type | 30 | 5 – 8 t | 80 | 110 | LB10 | 16/46/38/20 C | 4400 | 250
KRD 45 | KRM40 | 447 | 27.5 | 743 | 670 | 130 | 400 | 40 | 46 | PH 22 Type | 45 | 9 – 16 t | 110 | 110 | LB20 | 12/45/38/22 HC | 6100 | 380
KRD 70 | KRM50 | 612 | 53.4 | 946 | 951 | 230 | 400 | 850 | 40 | PH 30 HD Type | 70 | 17 – 25 t | 200 | 75 | LB30 | 17/75/70/30 Q | 16300 | 850
KRD 100 | KRM60 | 742 | 51.1 | 1020 | 1070 | 250 | 400 | 90 | 48 | PH 32 HD Type | 110 | 20 – 40 t | 225 | 70 | LB40 | 17/75/70/30 Q | 19000 | 1400
KRD 120 | KRM60 | 742 | 73.4 | 1020 | 1070 | 360 | 400 | 100 | 48 | PH 32 HD Type | 120 | 25 – 40 t | 320 | 70 | LB40 | 17/75/70/30 Q | 27200 | 1400
KRD 150 | KRM60 | 742 | 80.2 | 1020 | 1070 | 360 | 400 | 100 | 48 | PH 32 HD Type | 120 | 30 – 40 t | 330 | 65 | LB40 | 17/75/70/30 Q | 29800 | 1400
KRD 155 | KRM60 | 742 | 88.0 | 1020 | 1070 | 360 | 400 | 100 | 48 | PH 32 HD Type | 120 | 30 – 40 t | 340 | 65 | LB40 | 17/75/70/30 Q | 32700 | 1400
KRD 165 | KRM70 | 725 | 100.4 | 1260 | 1072 | 400 | 400 | 110 | 64 | PH 32 HD Type | 160 | 35 – 50 t | 380 | 65 | LB40 | 19/75/70/30 Q | 36400 | 1850
KRD 175 | KRM70 | 725 | 118.6 | 1260 | 1072 | 420 | 400 | 110 | 64 | PH 32 HD Type | 160 | 35 – 50 t | 400 | 55 | LB40 | 19/75/70/30 Q | 43000 | 1850

Technical specifications

• Drive type: Direct drive with oversized bearings supporting cutter drums
• Design: Compact and lightweight construction optimised for excavator attachments
• Power range: rated power from 15 kW up to 160 kW across models
• Cutter diameters: from 300 mm up to 742 mm depending on model
• Max. operating pressure: 400 bar (standard across range)
• Max. oil flow: from 40 l/min up to 420 l/min depending on model
• Torque range: approximately 1,000 Nm up to 43,000+ Nm depending on model
• Underwater capability: operational to 30 m without modifications
• Pick system: various PH / HD / Q pick types and standard hole patterns (LB10 / LB20 / LB30 / LB40 depending on model)
• Application suitability: demolition, trenching, ground stabilisation, concrete renovation, mining soft minerals, pipeline work, profiling, tunnelling and shaft sinking