Sandvik stated that the main benefits and upgrades made to the new RDX5 model compared to the previous HLX5 are:
- 50% longer recommended service interval for reduced rock drill service costs and increase machine utilisation
- Design improvements to reduce wear and extend component life
- Further strengthened flushing head, gear housing and body cylinder for longer life
- Improved percussion package with new piston design
- Higher productivity due to lesser need for maintenance and service
The RD535 improvements against the RD525 are:
- New percussion mechanism designed for high frequency
- Higher output/input power for up to 30% higher penetration rate
- New body structure for further to improve oil flow inside the rock drill
- A stabiliser ensures good bit-rock contact at all times and increases reliability and lowers tool consumption by lowering stress on the rock drill and tools
- Up to 20% less energy needed for same penetration rate
RDX5 specification
Hole diameter drilling – 43 – 64 mm
Hole diameter reaming – 76 – 127 mm
Power class – 20 kW
Percussion rate – 67 Hz
Operating pressures:
Percussion – 120 – 220 bar
Rotation (max.) – 175 bar
Rotation motor type – OMS 80, OMS 125 or OMS 160
Drill steels – R32, R39 or Hex 35 mm drifter rods, MF-rods recommended
Shanks – 45 mm / T38 / R32 / T35 / R38 / T45
Weight – 210 kg
RD535 specification
Hole diameter drilling – 48 – 64 mm
Hole diameter reaming – 76 – 127 mm
Power class – 31 kW
Percussion rate – 107 Hz
Operating pressures:
Percussion – 100 – 225 bar
Rotation motor type – OMS 125
Drill steels – R42 or R39 drifter rods, MF-rods recommended
Shanks – T35 (male), T38 (male), T45 (male)
Weight – 230 kg
