Revolution in Tunneling & Trenching: Why Use a Drum Cutter?
Drum Cutters work by rotating diamond picks to grind the surface. They are the strongest alternative to hydraulic breakers, especially in urban projects where vibration is restricted and in tunneling jobs requiring precision.
So, why are contractors increasingly choosing Drum Cutters? Here is the answer.
1. Silent and Vibration-Free Excavation
In construction sites near historical buildings, subways, or hospitals, shockwaves from a hydraulic breaker can damage structures. A drum cutter does not strike; it cuts. It minimizes vibration, ensuring safe operation.
2. Profiling and Surface Quality
In tunneling, tunnel walls (profiles) need to be smooth. While a breaker tears off irregular chunks, a drum cutter shaves the surface. This results in significant savings on shotcrete used for tunnel lining.
3. Breaker vs. Drum Cutter Comparison
Which attachment should be used where?
| Feature | Hydraulic Breaker | Drum Cutter |
| Principle | Impact (Striking) | Grinding / Cutting |
| Vibration | Very High | Very Low |
| Output Material | Large, irregular blocks | Small granules (like gravel) |
| Recycling | Needs crushing | Directly usable as backfill |
Frequently Asked Questions (FAQ)
Q: Can a drum cutter work underwater?
A: Yes! Unlike hydraulic breakers, drum cutters can safely operate underwater up to 30 meters deep without any modification.
Q: Is it efficient in hard rock?
A: Drum cutters are very efficient in rocks up to 80-100 MPa hardness (limestone, sandstone, marl). However, in very hard granite (120 MPa+), pick consumption may increase, making a breaker more economical.
Let's Choose the Right Cutter
Let us know the rock hardness (MPa) of your project and your excavator tonnage, and we will recommend the suitable model and pick type.
Email: info@hkm.com.tr