General Specifications:
The 320XPC Rotary Blasthole Drill is designed for drilling holes with diameters ranging from 270 mm to 444 mm (10 5⁄8 in. to 17 ½ in.). It offers a maximum single pass hole depth of 19.8 m (65 ft.) standard, with an optional depth of 21.3 m (70 ft.). Multi-pass hole depths can reach up to 39.6 m (130 ft.) with a single pipe rack and 59.4 m (195 ft.) with a dual pipe rack. The maximum bit loading is 68,038 kg (150,000 lbs.).

Mast and Pipe Handling:
The mast is constructed from lattice-type alloy steel and can be raised and lowered using two hydraulic cylinders. Standard mast height is 19.81 m (65 ft.), with an optional height of 21.3 m (70 ft.). Pipe handling is facilitated by a parallelogram style pipe rack, with options for additional racks.

Propulsion and Hydraulic System:
The drill uses a heavy-duty lug and tumbler drive system with dual hydrostatic planetary drive. It has a maximum propel speed of 1.61 kph (1.0 mph) and can handle a maximum grade of 20%. The hydraulic system features a closed loop design for the main system and an open loop design for auxiliary functions.

Electrical and Control Systems:
The Centurion supervisory controller provides integrated communication with motor drives, offering precise control and real-time multi-tasking. The system supports 'Profibus' communication protocol for seamless integration and future expandability.

Rotary Machinery:
The drill is powered by dual DC P&H electric motors with independent ABB DCS-800 drives. It can achieve a rotation speed of 0-119 RPM and a maximum torque of up to 33,895 Nm (25,000 ft-lbs.).

Air and Electrical Systems:
The air system includes a Gardner-Denver SSY Series oil-flooded screw type compressor with a standard volume of 97 m3/min (3,450 cfm). The electrical system operates on a supply voltage of 60Hz 4160V / 7200V 3-phase or 50Hz 6600V or 7200V 3-phase.

Dimensions and Weights:
The overall dimensions include a width of 8.51 m (27 ft. 11 in.) and a height of 30.6 m (100 ft. 6 in.) with the mast up. The operating weight is approximately 181,437 kg (400,000 lbs.).

Optional Equipment:
Options include a 100A welding outlet, auxiliary compressor, cold weather package, remote propel control, and more.

Operator's Cab:
The cab is rear-mounted with vibration and noise suppression, maintaining noise levels below 80 dB while drilling. It features PLC controlled backlit controls and climate control with Mine Air systems HVAC unit.