Blasthole drill

320XPC

Hole diameter 270 - 444 mm 10 5/8 - 17 1/2 in
Bit loading 68 038 kg 150,000 lbs.
Single pass hole depth 19.8 m 65 ft.

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Overview
Specifications
Service and support
Technology
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The reliability you need for the productivity you demand

Designed with the reliability and productivity you need in mind, the 320XPC blasthole drill is a robust electric-platform-style drill engineered for challenging drilling in tough rock. It has a solid record of performing in harsh conditions — arctic, high-altitude and hard rock applications. An excellent choice to help you achieve your production goals with powerful pulldown and propulsion capabilities.

13% more bit load on average than other drills this size*
Performs in harsh environments — under -30 °C, over 4,500 meters or altitude
68,040 kgs bit loading (150,000 lbs.), 34,040 NM torque — breakthrough power for tough rock conditions found around the world
*Based on competitive analysis of advertised bit loads of leading manufacturers

Features and benefits

Komatsu 320XPC blasthole drill in mining site

Powerful pulldown

Built for availability. Positive bit loading with an electric top-drive rack-and-pinion pulldown means a reduction in wearing components. This feature also offers a robust and precise way to transmit the pulldown force into the bit.

Rugged masts

Drill masts must tolerate high loads, so we used finite element analysis to achieve high-cycle fatigue-resistant structures and control downtime and costs due to repairing cracks. Constructed of standard high-strength alloy steel, the mast provides robust rotary carriage and drill string support.

Komatsu ZT44 blasthole drill in mining site

Superior propulsion

Built for durability with mainframes and crawler frames that can stand up to your hard-rock mine conditions. Rugged crawlers and powerful hydrostatic propel drives deliver maneuverability, gradeability and fast set-ups.

Komatsu 320XPC blasthole drill on white background

Ample, reliable air compressors

A range of dependable, mining-duty compressors are available to meet the specific bailing air needs for your mine operations. The 320XPC's compressors provide quality service.

Komatsu 320XPC blasthole drill operator visibility

Superior operator visibility

Operators have a wide view of drilling and surrounding areas with windows and video technology to help them maintain situational awareness while drilling and propelling. The operator's chair swivels to face the direction of travel during propelling for ease of repositioning.

Komatsu 320XPC blasthole drill operator environment on white background

Productive operator environment

Operator comfort and productivity are key in the FOPS Level II-certified structure, which features shatter-resistant glass, ergonomic controls, intuitive displays and an adjustable air seat suspension with viscous cab mounts to mitigate harsh vibrations.

Komatsu 320XPC blasthole drill on mining site

Easy-access deck design

Safety and serviceability are a priority, with an efficient deck layout that provides wide exterior and interior walkways. Operators have ample room to quickly and easily change bits and pipes with a large rear deck.

Advanced diagnostics

Enhance your machine’s performance and reliability with advanced diagnostics. The Centurion electrical control system uses intelligent sensors and input/output devices that precisely monitor and control hundreds of points on the drill.

Komatsu 320XPC blasthole drill literature link

PreVail RHM

Support your drill’s productivity with timely and efficient machine health and performance data. The PreVail RHM system transforms data into actionable insights.

Komatsu 320XPC blasthole drill on arctic conditions

Built to withstand arctic conditions

Protect your operator and equipment from low temperatures. The 320XPC is equipped with harsh-climate systems and features to perform in some of the coldest environments.

Komatsu 320XPC blasthole drills on high altitude

High-altitude performance

Committed to providing consistent drilling equipment wherever your mine is located, the P&H 320XPC was designed with the power and air capacity to promote productivity at altitudes over 14,000 ft (4,250 m).

Weak power grid protection

An optional soft start transformer mitigates starts on weak power grids by reducing the initial inrush current by over 75 percent compared to regular application without the soft start transformer. This feature may help control your power infrastructure costs and can promote extended main motor and compressor longevity.

Specifications for 320XPC

Full specifications

Standard equipment

Optional equipment

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US system Metric

Working ranges

Hole diameter	270 - 444 mm
Maximum single pass hole depth	Standard: 19.8 m Optional: 21.3 m
Maximum multi-pass hole depth	Single pipe rack: 39.6 m Dual pipe rack:59.4 m
Maximum bit loading	68 083 kg

Hole diameter	10 5/8 - 17 1/2 in
Maximum single pass hole depth	Standard: 65 ft. Optional: 70 ft.
Maximum multi-pass hole depth	Single pipe rack: 130 ft. Dual pipe rack: 195 ft.
Maximum bit loading	150,000 lbs.

Mast

Construction	Lattice type using alloy steel structural shapes
Mast	Standard: 19.81 m Optional 21.3 m
Raising and lowering	Two hydraulic cylinders standard diameter: 267 mm

Construction	Lattice type using alloy steel structural shapes
Mast	Standard: 65 ft. Optional 70 ft.
Raising and lowering	Two hydraulic cylinders standard diameter: 10.5 in

Hoist/pulldown

Design	DC electric motor driven chainless rack and pinion design
Bit loading (maximum)	68 038 kg
Drill feed	Up to 4.9 m/min
Hoist	Up to 37.0 m/min

Design	DC electric motor driven chainless rack and pinion design
Bit loading (maximum)	150,000 lbs.
Drill feed	Up to 16 ft./min
Hoist	Up to 105 ft./min

Pipe handling

Type	Parallelogram style pipe rack, one rack is standard
Pipe size	Diameter: 235 - 346 mm
Options	Additional pipe rack, up to two total
Auxiliary equipment	Standard deck wrench
Auxiliary winch	Capacity:6 350 kg
Breakout wrench	P&H brand SureWrench

Type	Parallelogram style pipe rack, one rack is standard
Pipe size	Diameter: 9.25 - 13.625 in
Options	Additional pipe rack, up to two total
Auxiliary equipment	Standard deck wrench
Auxiliary winch	Capacity: 14,000 lbs.
Breakout wrench	P&H brand SureWrench

Rotary machinery

Design	Dual DC P&H electric motors, independent ABB DCS 880 drives control (master/follower drive topology), can be run as single rotary motor during service/repairs
Rotation speed	0-119 rpm
Maximum torque	Up to 33 895 N-m

Design	Dual DC P&H electric motors, independent ABB DCS 880 drives control (master/follower drive topology), can be run as single rotary motor during service/repairs
Rotation speed	0-119 rpm
Maximum torque	Up to 25,000 ft.-lbs.

Lower works and propel

Crawler type	Heavy-duty lug and tumbler drive system, Komatsu design
Shoe width	Standard: 914 mm Optional: 1 117 mm
Propel machinery	Dual hydrostatic planetary drive with sprint set, hydraulic release break, 231 kW
Propel speed (maximum)	High (60 Hz): 1.6 kph High (50 Hz): 1.28 kph Low (60 Hz): .97 kph Low (50 Hz): .80 kph
Maximum grade:	20%
Take-up adjustment	Jack and shim

Crawler type	Heavy-duty lug and tumbler drive system, Komatsu design
Shoe width	Standard: 36 in Optional: 44 in
Propel machinery	Dual hydrostatic planetary drive with sprint set, hydraulic release break, 310 HP
Propel speed (maximum)	High (60 Hz): 1.0 mph High (50 Hz): .8 mph Low (60 Hz): .6 mph Low (50 Hz): .5 mph
Maximum grade:	20%
Take-up adjustment	Jack and shim

Air system

Compressor	Gardner-Denver SSY Series oil-flood screw type
Available volumes	Standard: 97 m³/min
Sullair oil-flooded screw type
Available volumes	Optional: 109 m³/min Requires: 746 kW main motor
Operating pressure	448 kPa
Air filters	Dual Donaldson 2-stage, dry type (Gardner Denver) Three Donaldson 2-stage, dry type (Sullair)

Compressor	Gardner-Denver SSY Series oil-flood screw type
Available volumes	Standard: 3,450 CFM*
Sullair oil-flooded screw type
Available volumes	Optional: 3,850 CFM* Requires: 1,000 HP main motor
Operating pressure	65 psi
Air filters	Dual Donaldson 2-stage, dry type (Gardner Denver) Three Donaldson 2-stage, dry type (Sullair)

*Nominal air volume. Actual values may vary according to application.

Hydraulic system

Main system	Closed loop design utilizing dual variable-displacement piston pumps for propel
Auxiliary system	Open loop design utilizing vane pumps for mast raising, machine leveling, and pipe handling
Control valves	Manifold mounted electro-hydraulic, PLC controlled - Discrete 24VDC Solenoid
Hydraulic lines	Extensive use of high pressure steel tubing
Filtration	3-micron return filters, 5-micron high pressure filters, 3-micron charge filters, magnetic suction strainers

Main system	Closed loop design utilizing dual variable-displacement piston pumps for propel
Auxiliary system	Open loop design utilizing vane pumps for mast raising, machine leveling, and pipe handling
Control valves	Manifold mounted electro-hydraulic, PLC controlled - Discrete 24VDC Solenoid
Hydraulic lines	Extensive use of high pressure steel tubing
Filtration	3-micron return filters, 5-micron high pressure filters, 3-micron charge filters, magnetic suction strainers

Electrical system

Incoming power Supply voltage	60 Hz: 4 160 V/7 200 3-phase 50 Hz: 6 600 V or 7 200 V 3-phase
Recommended supply transformer	Minimum 1.5MVA continuous, 6MVA minimum short circuit at drill
High voltage switchgear	External disconnect at trail cable junction box, high voltage load break disconnect and high voltage vacuum contactor for main drive motor and drives
Main drive motor	Standard: 522 kW Optional: 746 kW

Incoming power Supply voltage	60 Hz: 4,160 V/7, 200 3-phase 50 Hz: 6,600 V or 7,200 V 3-phase
Recommended supply transformer	Minimum 1.5MVA continuous, 6MVA minimum short circuit at drill
High voltage switchgear	External disconnect at trail cable junction box, high voltage load break disconnect and high voltage vacuum contactor for main drive motor and drives
Main drive motor	Standard: 700 HP Optional: 1,000 HP

Electrical control

Centurion supervisory controller provides direct integrated communication with motor drives giving precise motor control. Real-time multi-tasking capability allows for optimal machine logic sequencing, monitoring and control.
Centurion I/O system uses ‘Profibus’ communication protocol for seamless integration of all drill subsystems and future expandability. Low-voltage 24VDC I/O drop points feature open and short circuit detection for improved diagnostics and troubleshooting.
Centurion information system’s enhanced graphical user interface (GUI) features intuitive, icon-based screens to display vital information such as drill status, troubleshooting information, and production drill monitoring data.
System is PreVail RHM-ready and comes with a one year free subscription to PreVail RHM.

Centurion supervisory controller provides direct integrated communication with motor drives giving precise motor control. Real-time multi-tasking capability allows for optimal machine logic sequencing, monitoring and control.
Centurion I/O system uses ‘Profibus’ communication protocol for seamless integration of all drill subsystems and future expandability. Low-voltage 24VDC I/O drop points feature open and short circuit detection for improved diagnostics and troubleshooting.
Centurion information system’s enhanced graphical user interface (GUI) features intuitive, icon-based screens to display vital information such as drill status, troubleshooting information, and production drill monitoring data.
System is PreVail RHM-ready and comes with a one year free subscription to PreVail RHM.

Weights - approximate

Operating weight (maximum)	181 437 kg
Shipping weight with mast	153 949 kg
Ground bearing pressure for track pads	914 mm shoes: 200 kPa 1 117 mm shoes: 156 kPa

Operating weight (maximum)	400,000 lbs.
Shipping weight with mast	339,400 lbs.
Ground bearing pressure for track pads	36 in shoes: 29.0 psi 44 in shoes: 22.6 psi

Leveling jacks

Cylinders	Four (4) 254 mm diameter x 1 676 mm stroke
Jack pads		Ground pressure
Standard:	diameter: 762 mm	840 kPa
Optional:	diameter:1 270 mm	317 kPa
Auto level	Standard feature

Cylinders	Four (4) 10 in diameter x 66 in stroke
Jack pads		Ground pressure
Standard:	diameter: 30 in	129 psi
Optional:	diameter: 50 in	46 psi
Auto level	Standard feature

Operator cab

Type	Rear mounted with vibration and noise suppression
Noise	<80 dB while driving
Controls	PLC controlled, back lit for night operation
Glazing	Shatter-resistant, laminated glass on all sides, roof window with guard
Climate control	Mine air systems HVAC unit available providing pressurization and filtration
Falling objection protection	FOPS level II

Type	Rear mounted with vibration and noise suppression
Noise	<80 dB while driving
Controls	PLC controlled, back lit for night operation
Glazing	Shatter-resistant, laminated glass on all sides, roof window with guard
Climate control	Mine air systems HVAC unit available providing pressurization and filtration
Falling objection protection	FOPS level II

Lighting

Standard: LED floodlights for work area lighting

Operators cab

Air suspended operators seat
DIN EN 15695 level cab filtration
FOPS level II
HVAC with pressurizer
Interior and exterior LED lighting
Mini refrigerator
Sound level rating of 62 dB(A) or less
Trainer/buddy seat
Window tint

Lighting

LED lighting

Drill deck

Boarding stairs

Lubrication

Automatic lubrication (machinery)
Centralized lubrication

Operators cab

Air suspended operators seat
DIN EN 15695 level cab filtration
FOPS level II
HVAC with pressurizer
Interior and exterior LED lighting
Mini refrigerator
Sound level rating of 62 dB(A) or less
Trainer/buddy seat
Window tint

Lighting

LED lighting

Drill deck

Boarding stairs

Lubrication

Automatic lubrication (machinery)
Centralized lubrication

100A welding outlet
600V / 100A auxiliary outlet(s)
Auxiliary compressor
Bit lubrication
Cable reel
Cable reel lowering system
Cold weather package
Deck bushing (roller type)
Deck mounted jib crane
Fire suppression (locally specified and supplied)
Drill automation package
Hydraulic rear dust curtain
Modular and Terrain interface package
Remote propel control
Shock sub adapter
Stand alone welder
Tow package
Wiggins ‘Quickfil’ system

100A welding outlet
600V / 100A auxiliary outlet(s)
Auxiliary compressor
Bit lubrication
Cable reel
Cable reel lowering system
Cold weather package
Deck bushing (roller type)
Deck mounted jib crane
Fire suppression (locally specified and supplied)
Drill automation package
Hydraulic rear dust curtain
Modular and Terrain interface package
Remote propel control
Shock sub adapter
Stand alone welder
Tow package
Wiggins ‘Quickfil’ system

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