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285XPC

Product catalog summary

General Specifications:
The P&H 285XPC Rotary Blasthole Drill is designed for drilling operations with a hole diameter range of 229 mm to 349 mm (9 in. to 13 3⁄4 in.). It features a single pass mast with a standard hole depth of 19.8 m (65 ft.) and a maximum hole depth of 59.4 m (195 ft.). The maximum bit loading capacity is 53,524 kg (118,000 lbs.).

Mast and Hoist System:
The mast is constructed using a lattice type with alloy steel structural shapes. It is raised and lowered by two hydraulic cylinders with a diameter of 267 mm (10.5 in.). The hoist/pulldown system is a dual hydrostatic/direct drive chainless rack and pinion design, with a drill feed rate of up to 13.72 m/min (45 ft/min) and a hoist rate of up to 27.43 m/min (90 ft/min).

Pipe Handling and Auxiliary Equipment:
The drill uses a parallelogram style pipe rack, with options for additional racks. Pipe sizes range from 178 mm to 273 mm (7 in. to 10.75 in.). Standard auxiliary equipment includes a deck wrench and a P&H brand SureWrench breakout wrench.

Rotary Machinery:
The rotary machinery features a dual hydrostatic/helical gear design with a rotation speed of 0-130 RPM and a maximum torque of up to 17,626 Nm (13,000 ft-lbs.) at 65 RPM.

Electrical Control Systems:
The system includes a standard touch screen GUI with operator error protection systems such as over-temperature shutdowns and over-tilt protection.

Propel System:
The drill uses a heavy-duty B-9 excavator type crawler with a dual hydrostatic planetary drive. The maximum propel speed is 3.06 kph (1.90 mph) in high gear and 1.53 kph (0.95 mph) in low gear, with a maximum grade capability of 41%.

Hydraulic System:
The main system is a closed loop design with dual variable-displacement piston pumps, while the auxiliary system is open loop with an axial piston pump. The system uses high pressure steel tubing and features 3-micron return filters and 5-micron high pressure filters.

Power Unit:
The drill is powered by a Cummins QST 30 diesel engine with a power rating of 783 kW (1,050 hp) at 1800 rpm, with an optional MTU/Detroit series 4000 engine for high altitude applications. Fuel consumption is approximately 113.5 L/hr (30 gal/hr) with a fuel capacity of 4,542 liters (1,200 U.S. gallons).

Air System:
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) and an operating pressure of 448 kPa (65 psi).

Overall Dimensions and Weights:
The drill has an overall width of 7.83 m (25 ft. 8 in.) and a height of 27.77 m (91 ft. 2 in.) with the mast up. The operating weight is approximately 146,510 kg (323,000 lbs.).

Operator's Cab:
The rear-mounted operator's cab features vibration and noise suppression, with a noise level of less than 80 dB while drilling. It includes a PLC controlled system with backlit controls for night operation and a Bergstrom HVAC unit for climate control.

Optional Equipment:
Options include bit lubrication, cold weather package, fire suppression, high altitude package, remote propel control, and the Wiggins ‘Fastfil’ system.

Catalog excerpts

285XPCRotary Blasthole Drill General Specifications 229 mm to 349 mm Single pass mast Standard hole depth: 19.8 m 65 ft. Maximum hole depth: 59.4 m 195 ft.

Open the catalog to page 1

2 P&H 285XPC rotary blasthole drill general specifications Komatsu Mining Corp. Group 3 Hoist/pulldown Construction Lattice type using alloy steel structural shapes Single pass mast 19.8 m 65 ft. Raising and Two hydraulic cylinders Dual hydrostatic / direct drive chainless rack and pinion (maximum) Drill feed rate to 13.72 m/min 45 ft/min Hoist rate to 27.43 m/min 90 ft/min Pipe handling Type Pipe size Options Auxiliary equipment Auxiliary winch Breakout wrench Parallelogram style pipe rack, one rack is standard Diameter: 178 mm - 273 mm 7 in. - 10.75 in. Additional pipe rack, up to two total...

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4 P&H 285XPC rotary blasthole drill general specifications Optional equipment Cylinders Four (4) 203 mm (8 in.) diameter x 1,676 mm (66 in.) stroke Jack pads Ground Pressure Diameter: 762 mm (30 in.) 787 kPa 114 psi Auto level Standard feature Lighting • Bit lubrication • Cold weather package • Fire suppression • High altitude package • Remote propel control • Wiggins 'Fastfil'* system Standard: LED floodlights for work and area lighting Drill consumables Operator's cab Type Rear mounted with vibration and noise suppression FOPS Rating Level II Noise < 80 dB while drilling Controls PLC controlled,...

Open the catalog to page 3