An excavator-mounted rock saw is a heavy-duty hydraulic attachment designed for precision cutting of hard materials such as rock, concrete, reinforced structures, and frozen ground. It is widely used in construction, mining, quarrying, and demolition to replace traditional blasting methods, offering safer, cleaner, and more controlled cutting operations.
Key Features & Technical Specifications
1. Cutting Performance
-
Material Compatibility:
-
Natural rock (granite, basalt, sandstone)
-
Reinforced concrete (up to Ø30mm rebar embedded)
-
Asphalt and frozen ground
-
Cutting Depth: 300-1,200 mm (varies by model)
-
Blade Diameter: 600-1,500 mm (segmented diamond or tungsten carbide teeth)
-
Cutting Speed: 10-40 m²/h (depending on material hardness)
2. Hydraulic System
-
Operating Pressure: 280-350 bar
-
Flow Requirement: 80-250 L/min (matched to excavator's auxiliary hydraulics)
-
Power Source: Directly powered by the excavator's hydraulic system (no external power needed)
3. Structural Design
-
Frame: High-strength steel (Weldox 700) with abrasion-resistant plating
-
Blade Guard: Protective housing with dust suppression ports
-
Mounting: Compatible with quick couplers (e.g., Engcon, OilQuick) for fast attachment changes
4. Specialized Configurations
-
Wet Cutting Option: Water-fed blade for dust control and extended blade life
-
Tilt & Rotation: Some models offer ±15° tilt for angled cuts
-
Vibration Dampening: Reduced operator fatigue during prolonged use
Applications
Quarrying & Mining: Block cutting, bench trimming Civil Engineering: Trenching, foundation work, road slotting Demolition: Controlled dismantling of concrete structures |