2023 Komatsu Blasthole drills ZR77

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Year 2023
Make Komatsu
Model Blasthole drills

Year 2023
Manufacturer Komatsu
Model Name Blasthole drills
Trim Name ZR77
Generic Type (Primary) Track
Engine Manufacturer Non-reg. T2 and T4
Engine Power 1,050 HP
Engine Torque (variable) at 100 rpm 11,000 ft.-lbs.

When you need the lowest cost per meter drilled and blasted, Komatsu rotary drills deliver. Featuring rugged and reliable rotary carriages and enclosed boxer style masts, these machines provide ample torque and bit loading through the tough rock conditions. With maximum bit-loading ranges from 77,000 to 150,000 lbs. (68,039-34,927 kg) Komatsu offers a range of rotary drills for a variety of capacities and applications.

Features may include:

Robust, solid boxer-style mast?construction

To help reduce maintenance time and increase structural reliability, we've engineered an innovative solid boxer style mast.

Intelligent compressor control

This smart feature allows the operator to regulate the amount of air into the hole and helps manage power and fuel consumption. Effectively manage associated bailing velocity as well, which can help lower operating costs.

Auto-bit handling

The innovative auto-bit carousel helps to reduce bit change downtime. This feature also helps to flex into a new hole diameter quickly so operators can seamlessly adapt the drill pattern to quickly reach optimal fragmentation.

Engine

Engine Manufacturer Non-reg. T2 and T4

Engine Power 1,050 HP

Engine Torque (variable) at 100 rpm 11,000 ft.-lbs.

Motor

Motor Type Variable displacement axial piston with integral brake

Electric

Electrical 6.3 kv | Rated power: 212

Operational

Operating Conditions Standard output: 2,000 CFM | DTH output (standard): 1,500 CFM @ 350 psi | Pulldown force: 67,900 lbf. | Hoisting force: 67,900 lbf. | Travel stability-mast down, drill string engaged: 15° (26%) | Travel stability-mast up, drill string engaged: 9° (15%)

Maximum Pressure Operating: 100 psi

Operating Speed Carriage speed (maximum): 0 to 157.5 ft./min | Speed (variable): 200 rpm @ 5,500 ft.-lbs. | Low propel speed: 0-1.16 mph | High propel speed: 0-1.94 mph

Ground Pressure with standard shoe: 18.3 psi

Dimensions

Dimensions Hole diameter: 7 7/8 to 10 5/8 in | Maximum single pass: 55 ft. | Maximum multi-pass: 280 ft. | Carriage/rotary head travel: 62.5 ft. | Angle drilling (option): 5° increments | Diameter Pipe Size 4 / Pipe Size 5 /Pipe Size 6: 8 5/8 in. or less / 8 5/8 in. or less /7 5/8 in. or less

Length Mast (single pass) (multi-pass): 75.0 ft. 61.0 ft.

Width Mast: 39.4 in

Depth, Maximum Mast: 39.5 in | Maximum Pipe Size 4 / Pipe Size 5 /Pipe Size 6:

Track Width Shoe pad (standard): 29.5 in

Capacities

Load Capacity, Land Maximum bit: 77,000 lbs. | Maximum bit: 77,000 lbs.

Features Carousel capacity Pipe Size 4 / Pipe Size 5 /Pipe Size 6: 219 mm or less/219 mm or less/194 mm or less

Fuel Capacity 400 gal

Load Capacity, Water 400 gal

Hydraulic Capacity 300 gal

Tank Type OGL tank capacity: 18 gal

Features

Construction Material Mast: Structural plate steel

Features Mast raising cylinders: Hydraulic | Compressor type: Rotary screw, oil flooded | Compressor control: Electrically actuated, CANbus

2023 Komatsu Blasthole drills ZR77