KZQJC Pneumatic Column-Mounted Vibratory Drilling Rig for Coal Mine

High-Efficiency Anti-Jamming Drilling Solution for Hard Formations

Product Overview

The KZQJC Pneumatic Column-Mounted Vibratory Drilling Rig is an advanced underground drilling machine integrating pneumatic power, column-mounted support, and vibratory drilling technology.

Designed for complex geological conditions, the rig significantly improves drilling efficiency by reducing bit sticking and enhancing penetration in hard or fractured formations. It is widely used for gas drainage, water detection, and pressure relief drilling in underground coal mines.

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Key Features

1. Vibratory Drilling Technology (Core Advantage)

Integrated vibration mechanism
Reduces drilling resistance
Prevents drill sticking (anti-jamming)
Improves penetration efficiency

2. Column-Mounted Support Structure

Provides strong support and stability
Offsets reaction torque during drilling
Improves drilling accuracy

3. Pneumatic Drive – Explosion-Proof Safety

Powered by compressed air
No electrical components
Safe for high methane underground environments

4. High Efficiency in Hard Formations

Suitable for hard rock and complex geology
Faster drilling speed
Reduced downtime

5. Compact & Portable Design

Lightweight and modular
Easy to transport underground
Suitable for narrow working spaces

6. Reliable and Easy Maintenance

Simple structure
Durable components
Convenient maintenance

Applications

Gas drainage drilling
Water detection drilling
Pressure relief boreholes
Hard rock drilling
Geological exploration

Typical Technical Specifications

Basic Performance		Unit	KZQJC-1500/21.2S			KZQJC-1200/18.8S			KZQJC-1000/16.7S			KZQJC-650/12.9S
Operating Pressure		MPa	0.4	0.5	0.63	0.4	0.5	0.63	0.4	0.5	0.63	0.4	0.5	0.63
Rated Torque		N·m	1200	1500	1700	1100	1200	1250	900	1000	1100	520	650	800
Rated Speed		r/min	115	135	145	125	150	160	130	160	190	160	190	220
Vibration Frequency		Hz	34	40	43	37	45	48	39	48	57	36	48	51
Amplitude		mm	4
Maximum Output Power		kW	14.4	21.2	25.8	14.3	18.8	20.9	12.2	16.7	21.8	8.7	12.9	18.4
Maximum Load Torque		N·m	1460	1720	2000	1690	1810	1880	1250	1450	1650	660	790	940
Stalling Torque		N·m	520	1850	2120	1780	1900	1980	1500	1700	1900	700	850	1000
Starting Torque		N·m	1500	1760	2050	1730	1850	1910	1450	1650	1850	680	810	960
Air Consumption		m³/min	9	10	11	9	10	11	8	9	10	7	8	9
No-Load Speed		r/min	300	310	350	330	360	380	380	400	420	440	460	480
1/2 No-load speed		r/min	150	155	175	165	180	190	190	200	210	220	230	240
1/2 No-load speed torque		N·m	800	1100	1300	650	800	920	520	700	880	350	490	650
Noise	sound pressure level	dB(A)	110
Noise	Sound power level	dB(A)	120
Guide rail length		mm	2030±20
Thrust force		kN	14
Guide rail stroke		mm	1175±20
Drilling depth		m	150
Maximum working height		mm	2230±20
Minimum working height		mm	665±20
Main unit weight		㎏	190			170			305			240
Column support machine weight		㎏	230
Drilling diameter		mm	φ94
Flushing water pressure		MPa	0.6～1.2
Main unit dimensions		mm	2030×670×2400（±20）
Operating table (optional)	Machine weight	㎏	40
Operating table (optional)	Dimensions	mm	575×570×1045（±20）

Key Advantages for Buyers

✔ Anti-jamming drilling performance
✔ High efficiency in hard formations
✔ Explosion-proof pneumatic system
✔ Stable column-mounted structure
✔ Reduced drilling cost and downtime

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