XCMG XQZ178 Down-The-Hole Drill Rig

Overview

The XCMG XQZ178 is an integrated down-the-hole (DTH) drill rig developed for quarries, cement mines, open-pit coal mines and similar mining operations. It drills main blasting holes and pre-split holes, and XCMG highlights its large drilling diameter, high drilling efficiency and wide application range.

Main Specifications

Item	Value
Drilling diameter	Ф138–Ф178 mm
Maximum hole depth	36 m
Rated power	354 kW
Engine	Cummins QSZ13-C475
Emission standard	CN III
Rotary torque	5,800 N·m
Rotary speed	90 rpm
Operating weight	24,500 kg
Transport dimensions	11,800 × 2,700 × 3,560 mm

Drilling Equipment

Item	Value
Rod specification	Ø89 / Ø102 / Ø114 mm
Rod quantity	8 + 1 / 5 + 1
DTH hammer size	4” / 5” / 6”
Rod length	6,000 mm
Feed type	Motor + chain
Maximum pull-up force	50 kN
Maximum feed force	40 kN
Maximum feed speed	0.9 m/s

Air, Hydraulic and Electrical Systems

Item	Value
Air compressor	Atlas Copco (two-stage screw)
Air volume	24 m³/h
Air pressure	25 bar
Compressor oil capacity	76 L
Main pump maximum working pressure	28 MPa
Main pump flow	140 + 140 L/min
Hydraulic tank capacity	400 L
Fuel tank capacity	760 L
Voltage	24 V
Battery	2 × 12 V, 180 Ah
Dust collection filter area	31 m²
Filter elements	28

Chassis and Cab

Item	Value
Ground clearance	420 mm
Maximum travel speed	3 km/h
Maximum gradeability	25°
Cab noise limit	≤ 85 dB
Safety certification	FOPS (falling-object protection)
Air conditioning	Standard heating and cooling
Seat	Adjustable and heated

Key Features

• Durable hardware — high-strength double-V aluminium feed beam with good guidance and corrosion resistance.
• Efficient performance — an independent cooling system avoids high-temperature shutdowns, and the imported air compressor provides a strong, reliable air supply.
• Stable control — engine pre-heating for strong cold-start performance, 420 mm ground clearance and independent levelling for good site mobility.
• Intelligent system — an ergonomic cab with safe, comfortable operation and real-time display of drilling parameters.

Applications

Quarries, cement mines and open-pit coal mines, plus mining production in the building-materials, coal, metallurgy and chemical industries and engineering work in the geological, construction, hydropower, transport and military sectors.

Data Source

XCMG official product pages: XQZ178 (global export page) and XQZ178 (China page), fetched on 2026-10-04.

Specifications follow the XCMG official pages and may vary by batch and configuration. Final configuration and figures must be confirmed after order placement.