Attachment Milling Machines
Rotary Drum Cutters
Ten models from KR 10 (0.6-tonne minis) to KR 400 (125-tonne giants). Heavy-duty drum cutters for rock excavation, concrete milling and dimensional cutting with minimal vibration, including underwater operation.
- Models in range
- 10
- Carrier class
- 0.6 - 125 t
- Service weight from
- 103 kg
- Rated power up to
- 400 kW
KR Series, rotary drum cutters
From 0.6 tonnes to 125 tonnes, drum cutters built around reinforced gearboxes and shielded hose management.
Kemroc's KR Series rotary drum cutters are essential tools for any rock or concrete site, ten models cover excavators from 0.6 tonnes (the KR 10) up to 125 tonnes (the KR 400). Reinforced gearbox housings, shielded hose routing and underwater-rated construction make these drum cutters productive in conditions where lighter attachments fail. Distributed and supported in Australia by Monty Products.
Reinforced Gearbox Housing
Ultra-durable gearbox housings engineered for continuous operation in the harshest site conditions. Long service intervals and high reliability.
Shielded Hose Design
Protected hose management routes hydraulic lines safely through the cutter body, capable of underwater operation up to depth without modifications.
Vibration-Free Cutting
Smooth rotary cutting transfers minimal shock to the carrier and surrounding structures, improving operator comfort and reducing wear across long shifts.
Range Spectrum
Service weight (kg)
Where each model sits across the range. Lighter on the left, heavier on the right.
Where It Works
Common applications across Australian construction, demolition and civil sites.
Rock excavation
Bulk and selective rock excavation across a wide range of formations, from soft sandstone to hard limestone.
Urban demolition
Low-vibration cutting of reinforced concrete in noise-restricted city sites where breakers can't be used.
Trenching & profiling
Dimensional cutting of trenches, slots and profiles, clean edges where rock saws would chip and shatter.
Concrete milling
Mill concrete slabs, footings and walls down to required depth, controlled removal without surrounding damage.
Underwater operation
Shielded hose system rated for underwater work, harbour, dock and offshore applications without modification.
Selective mining
Gypsum, salt, soft limestone and similar minerals where blast-and-truck operations are too disruptive.
The Range in Action
A featured shot plus supporting views, taken on Australian sites.
KR-D 120KR-D premium variant on OilQuick, production rock and soil cutting
Technical Specifications
Scroll horizontally on smaller screens. The measure column stays in view.
| Measure | KR 10 | KR 20 | KR 30 | KR 45 | KR 65 | KR 110 | KR 150 | KR 175 | KR 200 | KR 400 |
|---|---|---|---|---|---|---|---|---|---|---|
| Recommended excavator weight (t) | 0.6-3 | 2-4 | 5-8 | 9-15 | 12-18 | 20-35 | 30-50 | 40-55 | 50-70 | 80-125 |
| Rated power (kW) | 10 | 18 | 30 | 45 | 65 | 110 | 120 | 160 | 200 | 400 |
| Cutter drum diameter (mm) | 225 | 240 | 370 | 400 | 587 | 720 | 720 | 720 | 825 | 950 |
| Cutter head width (mm) | 425 | 495 | 520 | 600 | 805 | 880-1,040 | 880-1,040 | 1,050 | 1,330 | 1,300-1,650 |
| Drum cutter length (mm) | 490 | 636 | 846 | 990 | 1,195 | 1,470 | 1,470 | 1,590 | 1,660 | 2,050 |
| Max. cutting force at 380 bar (kN) | 8.3 | 16.7 | 24.3 | 36.7 | 41.8 | 75.5 | 90.6 | 119.0 | 146.8 | 255.0 |
| Max. torque at 380 bar (Nm) | 900 | 2,000 | 4,500 | 7,300 | 12,300 | 27,200 | 32,600 | 43,000 | 60,600 | 121,100 |
| Recommended oil flow (L/min) | 10-20 | 25-40 | 50-80 | 90-120 | 120-150 | 200-280 | 250-320 | 330-420 | 350-450 | 700-950 |
| Max. oil flow (L/min) | 30 | 60 | 90 | 130 | 170 | 300 | 360 | 420 | 500 | 1,000 |
| Max. operating pressure (bar) | 400 | 400 | 400 | 400 | 400 | 400 | 400 | 400 | 380 | 380 |
| Recommended rotation speed (rpm) | 125 | 100 | 100 | 90 | 80 | 75 | 70 | 65 | 55 | 50 |
| Number of picks (pcs) | 44 | 56 | 44-64 | 44 | 44 | 44-60 | 44-60 | 60-64 | 64 | 68-88 |
| Service weight (kg) | 103 | 167 | 310-350 | 570 | 900 | 1,780-2,050 | 1,780-2,050 | 2,550-2,800 | 3,720 | 6,300-7,100 |
Selection from the full KR Series range. Additional intermediate and 'C'-suffix models are available, contact Monty Products for the complete spec sheet.
Get in Touch
Contact our team for Rotary Drum Cutters specifications, pricing and availability across Australia.