ZQJC Pneumatic Rotary Drilling Rig for Coal Mine

Air-Powered Drilling Equipment for Gas Drainage and Exploration

Product Overview

The ZQJC Pneumatic Rotary Drilling Rig is a specialized air-powered drilling machine designed for underground coal mine operations.

Powered by compressed air, the rig provides explosion-proof safety and reliable performance. It is widely used for gas drainage, water detection, pressure relief drilling, and geological exploration.

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Key Features

1. Pneumatic Drive – Explosion-Proof Safety

Powered by compressed air
No electrical system required
Eliminates spark hazards

Ideal for high methane underground environments

2. Strong Drilling Capability

High torque output
Stable drilling performance
Suitable for soft and medium-hard formations

3. Flexible Drilling Angles

Adjustable drilling direction
Supports multi-angle operations
Suitable for complex underground conditions

4. Compact & Portable Design

Lightweight structure
Easy to transport and operate
Perfect for narrow tunnels

5. Reliable and Durable

Stable operation
Long service life
Low maintenance requirements

Applications

Gas drainage drilling
Water detection drilling
Pressure relief drilling
Geological exploration

Typical Technical Specifications

Items		Unit	ZQJC-2000/23.0S
Working Pressure		MPa	0.4	0.5	0.63
Rated Torque		N·m	1800	2000	2150
Rated Speed		r/min	100	110	120
Rated Power		kW	18.8	23	27
Maximum Load Torque		N·m	2100	2300	2700
Power Starting Torque		N·m	2200	2400	2800
Power Stall Torque		N·m	2300	2500	2900
Air Consumption		m³/min	10	11	12
No-Load Speed		r/min	220	240	260
1/2 No-Load Speed		r/min	110	120	130
1/2 No-Load Torque		N·m	1200	1650	2000
Tail Connection Dimensions		mm	Various models of drill tines can be equipped according to usage requirements.
Thrust Force		KN	25
Guide Rail Length		mm	2030±20
Guide Rail Stroke		mm	1180±20
Maximum Working Height		mm	2120±20
Minimum Working Height		mm	670±20
Flushing Water Pressure		MPa	0.6～1.2
Noise	Sound Power Level	dB(A)	120
	Sound Pressure Level	dB(A)	110
Machine Weight		kg	Main unit: 135; Frame: 95
External Dimensions		mm	2030×610×2100（±50）
Control Panel Weight		kg	40
Drilling Depth		m	≥200
Drilling Diameter		mm	φ45-φ113

*For more information on our models, please contact us.

Key Advantages for Buyers

✔ Explosion-proof air-powered system
✔ Designed for gas and water detection drilling
✔ Flexible and easy to operate
✔ Cost-effective solution

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