ZQLC Pneumatic Rotary Drilling Rig for Coal Mine

Lightweight Air-Powered Drilling Machine for Safe Underground Operations

Product Overview

The ZQLC Pneumatic Rotary Drilling Rig is a lightweight, air-powered drilling machine designed for underground coal mine applications.

Powered by compressed air, it eliminates the need for electricity, making it ideal for high-gas and explosion-prone environments. It is widely used for roof bolting, gas drainage, and general borehole drilling operations.

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The ZQLC Pneumatic Rotary Drilling Rig for coal mines is an upgraded product in our company's drilling rig series. Powered by compressed air and equipped with a tracked walking mechanism, it can be widely used for drilling at different angles in coal mines for water exploration, gas exploration, pressure release, and geological exploration.

The advantages of this drilling rig are as follows:

1. High safety: Powered by compressed air, it has no electrical wiring, making it safer and more convenient to use.

2. High power and high efficiency: This drilling rig is reliable. The motor adopts a unique air circuit layout, and the aerospace-grade parts are 40% lighter and 30% more efficient than similar domestic drilling rigs.

3. High power and compact size: It can move freely in narrow tunnels, making it easy to move and reducing the workload for workers.

4. Leading position in China in terms of drilling diameter and depth: It can maintain a power output of over 11KW in drilling operations in any soft or hard medium. This machine is capable of drilling across obstacles at long distances laterally.

5. This drilling rig's base is equipped with a rotating compass, allowing for 360-degree horizontal rotation for drilling at any angle. The lifting device features a locking and positioning mechanism, effectively saving drilling stabilization time, improving rig stability, and facilitating drilling operations.

6. High thrust – The drilling rig's propulsion mechanism uses an independent, high-efficiency motor drive, combined with a multi-head worm gear transmission, achieving high thrust and high efficiency.

7. Stepless speed regulation – A unique valve body structure enables stepless speed regulation of the drilling rig's rotary mechanism in both forward and reverse directions. Feed speed and feed force are infinitely adjustable. Combined with the independent propulsion mechanism, this ensures that rotary power and feed power are always distributed in an appropriate ratio, significantly improving drilling efficiency.

Key Features

1. Pneumatic Drive System (Core Advantage)

Powered by compressed air
No electrical components
Safe for explosion-prone environments

2. Lightweight & Portable

Compact structure
Easy to carry and operate
Suitable for narrow underground spaces

3. High Safety Performance

No spark risk
Ideal for high methane conditions
Reliable underground operation

4. Stable Drilling Performance

Smooth rotation
Good torque output
Suitable for soft to medium-hard rock

5. Low Maintenance Cost

Simple structure
Easy to maintain
Long service life

Applications

Roof bolt hole drilling
Gas drainage drilling
Geological exploration
Underground support operations

Typical Technical Specifications

Items	Unit	ZQLC-2550/26.7S			ZQLC-2380/26.1S
Rated pressure	Mpa	0.4	0.5	0.63	0.4	0.5	0.63
Rated torque	N·m	2050	2550	2800	1900	2380	2700
Rated speed	r/min	90	100	110	100	105	110
Rated power	kW	19.3	26.7	32.2	19.8	26.1	31
Thrust force	KN	34
Guide rail thrust stroke	mm	1200±20
Maximum working height	mm	1750±20
Minimum working height	mm	1050±20
Weight	kg	2150
Dimensions (L x W x H)	mm	220011002280(±50)

Items	Unit	ZQLC-2250/25.9S			ZQLC-2100/25.2S
Rated pressure	Mpa	0.4	0.5	0.63	0.4	0.5	0.63
Rated torque	N·m	1800	2250	2550	1700	2100	2400
Rated speed	r/min	105	110	115	110	115	120
Rated power	kW	19.7	25.9	30.7	19.5	25.2	30.1
Thrust force	KN	34
Guide rail thrust stroke	mm	1200±20
Maximum working height	mm	1750±20
Minimum working height	mm	1050±20
Weight	kg	2150
Dimensions (L x W x H)	mm	220011002280(±50)

Key Advantages for Buyers

✔ Explosion-proof and safe
✔ Lightweight and easy to handle
✔ No electrical power required
✔ Cost-effective solution

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We provide reliable and cost-effective bolting solutions for global mining customers.

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