Rotary drum cutter is a hydraulically driven excavator attachment fitted with double rotating milling drums lined with alloy cutting picks. Unlike impact hydraulic breakers that trigger heavy vibration and over-excavation, this milling tool crushes rock, concrete, and frozen soil via continuous rotary scraping, delivering precise shaping without damaging adjacent structures.
YG Machinery launches four standard YG140-YG240 models compatible with 5–24-ton excavators, supporting horizontal and vertical installation for diversified construction scenarios.
Unified Complete Technical Parameter Table For Drum Cutter Attachment For Excavator
| Model | YG140 | YG160 | YG180 | YG240 |
| H | 650mm | 820mm | 830mm | 1395mm |
| W | 410mm | 650mm | 780mm | 960mm |
| D | 390mm | 460mm | 480mm | 620mm |
| Excavator weight | 5~10T | 10~15T | 15~21T | 20~24T |
| Max power | 22Kw | 45Kw | 55Kw | 65Kw |
| Speed | 0~120r/min | 0~100r/min | 0~80r/min | 0~90r/min |
| Flow | 40L/min | 100~110L/min | 130~180r/min | 200~250r/min |
| Max Torque | 3200N.m | 5400N.m | 5600N.m | 12800N.m |
The milling drum body adopts integrated casting with replaceable single carbide picks, equipped with a fully sealed gearbox to block dust and mud intrusion.
Complete Working Principle Of Rotary Drum Cutter
This hydraulic milling attachment draws power from the carrier’s auxiliary hydraulic circuit to drive two counter-rotating drums. Alloy picks on the drum surface continuously scrape and grind hard materials into uniform small fragments, instead of heavy impact striking. Built-in overload pressure relief valves automatically shut down output when stuck, avoiding motor burnout.
All models of rock drum cutter support forward and reverse rotation to adapt to horizontal, vertical, and inclined working surfaces. Mining and cold-region contractors dealing with frozen soil can choose it to boost material processing efficiency by over 30% compared with traditional hammer breaking.
7 Core Functional Advantages Of Rock Drum Cutter
- Precision Milling Control: Operation error is limited to within 5 mm, effectively avoiding over-digging and protecting surrounding buildings and rock mass.
- Low Vibration & Low Noise: Continuous rotary cutting reduces shockwaves; running noise < 85 dB, compliant with urban construction noise limits.
- Customizable setup: optional dust spray, adjustable drum width, and picks for special jobs. Rental firms use a rotary drum cutter to cover municipal & tunnel work and save extra attachment costs.
- High Torque Stable Output: Imported planetary hydraulic motor delivers steady torque for rocks below 150MPa compressive strength.
- Modular Wear Picks: Individual pick replacement without disassembling the whole drum, slashing daily maintenance costs.
- Multi-Angle Operation: Bidirectional rotation fits tunnel contouring, pipeline trenching, and slope trimming tasks.
- Full Compatibility: Standard quick hitch interface matches mainstream excavators without complex hydraulic refitting.
Global Full-Scene Application Fields Of Rotary Drum Cutter
- Tunnel Engineering: Tunnel contour trimming, side wall shaping, and underground metro precise excavation.
- Municipal Pipeline Works: Narrow trench digging for water, power, and communication cables.
- Mining Operations: Medium-hard rock stripping, open-pit layered ore separation.
- Cold Region Works: Dig frozen ground without pre-thaw. Cross-region mining & municipal teams adopt drum cutter attachment for excavator to standardize precision rock milling worldwide.
- River & Water Conservancy: River dredging, dam slope trimming, and shallow rock clearing.
- Building Demolition: Selective concrete crushing, partial road asphalt milling.
- Highway Construction: Roadbed rock cutting, slope protection surface finishing.
- Quarry Works: Rough stone trimming and waste rock fine crushing.
Step-By-Step Model Matching Guide For Drum Cutter Attachment For Excavator
- Excavator Tonnage Matching: 5–10 ton mini diggers pick YG140; 20–24 ton heavy carriers select YG240.
- Long-Term Use: Heavy mining picks thick drums; seasonal jobs use standard units. Demolition & water conservancy crews adopt rock drum cutters for tunnel, road, and rock milling.
- Rock Hardness Judgement: Soft soil & limestone adopt standard torque model; granite over 100MPa needs high-torque YG240.
- Working Environment Rules: Downtown residential sites choose low-noise optimized version; open mines adopt heavy wear-resistant picks.
Frequently Asked Questions About Rock Drum Cutter
A1: Standard connecting bracket matches most diggers; customized lugs and hydraulic piping available for non-standard models.
A2: Suitable for rock and concrete with compressive strength < 150 MPa; ultra-hard basalt requires a high-torque customized unit.
A3: A water mist system is optional for indoor urban jobs. Buyers can consult overseas sales for custom solutions & factory prices of the rotary drum cutter.
A4: Built-in dual pressure protection valve stabilizes oil pressure to prevent host hydraulic damage.
A5: Picks adopt an independent modular design; operators can finish a single set replacement within 15 minutes with special tools.
Factory Supply & Global After-Sales Support Of Rotary Drum Cutter
YG Machinery integrates independent R&D, mass production, and global export of excavator hydraulic attachments. Besides rotary drum cutters, we supply rock splitters, quick hitches, and electromagnetic magnets for one-stop contractor procurement. If you need overseas tunnel project case videos or tailored rock milling budget quotations, submit your excavator tonnage and main rock types to our sales team. You can order a drum cutter attachment for an excavator with factory-direct pricing and a full 12-month machine warranty.
