TRANSVERSE DRUM CUTTER ATTACHMENTS
Rockwater’s drum cutter and rock grinder series provides a full line of models that cover most sizes of excavator and other applicable carriers. The RD rock grinders have a wide range of applications in excavation, mining, demolition, quarrying, tunneling and trenching. Rockwater’s drum cutters/ rock grinders use robust spur gears driven by high-torque motors. The rotary drum cutter’s picks on twin drums will penetrate and remove materials through a combination of crushing and cutting action. The optimum number of pick and its arrangement ensures maximum cutting performance and minimum vibration.
DRUM CUTTER SPECS & FEATURES
- Maximum cutting performance and minimum service due to unique transmission technology.
- Low maintenance due to robust drive shaft and heavy duty sealing system.
- Underwater operation without additional installation.
- Wear-resistant tungsten carbide tip to withstand extreme stress and impact.
- High torque hydraulic motor for higher productivity and longer motor life cycle.
- Robust housing design with Hardox wear protection for higher uptime.
- Lubrication free slide ring seal system.
SPECIFICATION
| Model | Unit | RD50 | RD100 | RD150 | RD300 | RD400 | RD500 |
| Weight | lb | 860 | 925 | 1,765 | 3,860 | 4,080 | 5,180 |
| Rotational Speed | rpm | 90-160 | 80-135 | 60-110 | 60-90 | 50-90 | 55-85 |
| Max. Cutting Force @ 5,100 psi | N | 17,800 | 23,200 | 36,200 | 58,200 | 69,900 | 81,800 |
| Max. Torque @ 5,100 psi | Nm | 3,150 | 5,200 | 10,400 | 19,500 | 23,400 | 27,800 |
| Max. Rock Hardness | Mpa | 25 | 40 | 50 | 70 | 80 | 100 |
| Length of Rock Grinder | A (mm) | 740 | 740 | 990 | 1,200 | 1,200 | 1,300 |
| Width of Grinder Head | B (mm) | 615 | 660 | 730 | 880 | 920 | 950 |
| Diameter of Grinder Head | C (mm) | 370 | 370 | 560 | 670 | 670 | 710 |
| Number of Picks | pcs | 64 | 64 | 48 | 48 | 48 | 56 |
| Pick Shank Diameter | mm | 20 | 20 | 25 | 30 | 30 | 30 |
| Oil Flow | gpm | 13-24 | 20-33 | 29-45 | 50-85 | 50-85 | 73-108 |
| Max. Operating Pressure | psi | 5,100 | 5,100 | 5,100 | 5,100 | 5,100 | 5,100 |
| Applicable Carrier | lb | 6,500-16,000 | 15,000-34,000 | 27,000-41,000 | 45,000-74,000 | 55,000-90,000 | 78,000-112,000 |
| ton | 3-7 | 7-15 | 12-18 | 20-33 | 25-40 | 35-50 |
| Model | Unit | RD50 |
| Weight | lb | 860 |
| Rotational Speed | rpm | 90-160 |
| Max. Cutting Force @ 5,100 psi | N | 17,800 |
| Max. Torque @ 5,100 psi | Nm | 3,150 |
| Max. Rock Hardness | Mpa | 25 |
| Length of Rock Grinder | A (mm) | 740 |
| Width of Grinder Head | B (mm) | 615 |
| Diameter of Grinder Head | C (mm) | 370 |
| Number of Picks | pcs | 64 |
| Pick Shank Diameter | mm | 20 |
| Oil Flow | gpm | 13-24 |
| Max. Operating Pressure | psi | 5,100 |
| Applicable Carrier | lb | 6,500-16,000 |
| ton | 3-7 |
| Model | Unit | RD100 |
| Weight | lb | 925 |
| Rotational Speed | rpm | 80-135 |
| Max. Cutting Force @ 5,100 psi | N | 23,200 |
| Max. Torque @ 5,100 psi | Nm | 5,200 |
| Max. Rock Hardness | Mpa | 40 |
| Length of Rock Grinder | A (mm) | 740 |
| Width of Grinder Head | B (mm) | 660 |
| Diameter of Grinder Head | C (mm) | 370 |
| Number of Picks | pcs | 64 |
| Pick Shank Diameter | mm | 20 |
| Oil Flow | gpm | 20-33 |
| Max. Operating Pressure | psi | 5,100 |
| Applicable Carrier | lb | 15,000-34,000 |
| ton | 7-15 |
| Model | Unit | RD150 |
| Weight | lb | 1,765 |
| Rotational Speed | rpm | 60-110 |
| Max. Cutting Force @ 5,100 psi | N | 36,200 |
| Max. Torque @ 5,100 psi | Nm | 10,400 |
| Max. Rock Hardness | Mpa | 50 |
| Length of Rock Grinder | A (mm) | 990 |
| Width of Grinder Head | B (mm) | 730 |
| Diameter of Grinder Head | C (mm) | 560 |
| Number of Picks | pcs | 48 |
| Pick Shank Diameter | mm | 25 |
| Oil Flow | gpm | 29-45 |
| Max. Operating Pressure | psi | 5,100 |
| Applicable Carrier | lb | 27,000-41,000 |
| ton | 12-18 |
| Model | Unit | RD300 |
| Weight | lb | 3,860 |
| Rotational Speed | rpm | 60-90 |
| Max. Cutting Force @ 5,100 psi | N | 58,200 |
| Max. Torque @ 5,100 psi | Nm | 19,500 |
| Max. Rock Hardness | Mpa | 70 |
| Length of Rock Grinder | A (mm) | 1,200 |
| Width of Grinder Head | B (mm) | 880 |
| Diameter of Grinder Head | C (mm) | 670 |
| Number of Picks | pcs | 48 |
| Pick Shank Diameter | mm | 30 |
| Oil Flow | gpm | 50-85 |
| Max. Operating Pressure | psi | 5,100 |
| Applicable Carrier | lb | 45,000-74,000 |
| ton | 20-33 |
| Model | Unit | RD400 |
| Weight | lb | 4,080 |
| Rotational Speed | rpm | 50-90 |
| Max. Cutting Force @ 5,100 psi | N | 69,900 |
| Max. Torque @ 5,100 psi | Nm | 23,400 |
| Max. Rock Hardness | Mpa | 80 |
| Length of Rock Grinder | A (mm) | 1,200 |
| Width of Grinder Head | B (mm) | 920 |
| Diameter of Grinder Head | C (mm) | 670 |
| Number of Picks | pcs | 48 |
| Pick Shank Diameter | mm | 30 |
| Oil Flow | gpm | 50-85 |
| Max. Operating Pressure | psi | 5,100 |
| Applicable Carrier | lb | 55,000-90,000 |
| ton | 25-40 |
| Model | Unit | RD500 |
| Weight | lb | 5,180 |
| Rotational Speed | rpm | 55-85 |
| Max. Cutting Force @ 5,100 psi | N | 81,800 |
| Max. Torque @ 5,100 psi | Nm | 27,800 |
| Max. Rock Hardness | Mpa | 100 |
| Length of Rock Grinder | A (mm) | 1,300 |
| Width of Grinder Head | B (mm) | 950 |
| Diameter of Grinder Head | C (mm) | 710 |
| Number of Picks | pcs | 56 |
| Pick Shank Diameter | mm | 30 |
| Oil Flow | gpm | 73-108 |
| Max. Operating Pressure | psi | 5,100 |
| Applicable Carrier | lb | 78,000-112,000 |
| ton | 35-50 |