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Address: Sany Supporting Industrial Park, Economic and Technological Development Zone, Loudi City, Hunan Province

Hydraulic mining roadheader

The SRZY-20J, with model numbers CYTJ45 and CYTJ45(D), is a brand‑new compact rock‑drilling machine designed specifically for use in narrow‑gauge mine tunnels. It is suitable for rapid drilling of blast holes in underground mines, hydropower projects, water‑diversion works, and other applications. The machine features a dual‑power system: its working mechanism is fully hydraulically driven, delivering high drilling speeds with low energy consumption; a diesel engine powers locomotion, ensuring agile movement and quick deployment or retrieval. The drilling system includes automatic anti‑jamming and automatic bit‑retraction upon completion. With a compact overall design, a low center of gravity, and excellent stability, this equipment not only enhances safety and operational efficiency but also reduces operator fatigue.

Classification:

Non-Coal Mine Product Series

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Product Details

Product Introduction

Applicable range: 2.3 x 2.3–5.5 x 4.5 m

The SRZY-20J, with model numbers CYTJ45 and CYTJ45(D), is a brand‑new compact rock‑drilling machine designed specifically for use in narrow‑tunnel mines. It is suitable for rapid drilling of blast holes in tunnels across underground mining, hydropower, water‑diversion, and other applications. The machine features a dual‑power system: its working mechanism is fully hydraulically driven, delivering high drilling speeds with low energy consumption; a diesel engine powers locomotion, ensuring agile movement and quick deployment or retrieval. The drilling system includes automatic anti‑jamming and automatic bit‑retraction upon completion of drilling. With a compact overall design, a low center of gravity, and excellent stability, this equipment not only enhances safety and operational efficiency but also reduces operator fatigue.

Product Specifications

Control system
Functions of the Direct Hydraulic Control System
Functionality	Anti‑jamming brazing
Chassis Parameter Description
Engine	96KW
Twisting rotation angle	±40°
Hydrostatic Power Steering System	-
Hydrostatic transmission	Four-wheel drive
Tire	8.25-15
Approach angle	18°
Departure angle	17°
Hydraulic front outrigger	2 (extendable)
Hydraulic rear outrigger	2 pieces
Parking brake	-
Fuel tank	80L
Storage battery	120A
Electrical system voltage	12V
Driving illumination	4
Accessories	Centralized lubrication system, exhaust catalytic converter, muffler, fire extinguisher, pneumatic grease gun, car wash water gun
Climbing ability	≤14°
Walking speed	12Km/H
Auxiliary prompting device	Horn, warning lights, and reverse alarm
Control system
Direct hydraulic control system
Functionality	Anti‑jamming brazing
Hydraulic system
Hydraulic pump	Used for impact, positioning, and propulsion; employed in the unloading start-up of rotary oil pumps.
Maximum system pressure	230bar
Hydraulic oil tank	300L
Low Oil Level Indicator	With a shutdown function, located in the fuel tank.
Oil temperature gauge, temperature switch	-
Filtration accuracy	10um
Hydraulic oil water cooler	-
Manual oil pump	-
Mineral-based hydraulic oil	Mineral-based hydraulic oil
Water system
Water pump	Centrifugal pump
Motor power	3KW
Maximum flow rate	70L/min
Maximum working pressure	25bar
Air compressor system
Air compressor type	Screw rod
Motor power	5.5KW
Maximum displacement	0.7 m³/min
Work stress	8bar
Electrical system
Total installed capacity	83KW
Main motor power	75KW
Voltage	380V
Frequency	50HZ
Startup method	Star-Delta
Motor Overheat Protection	-
Battery charger	300W
Transformer	300VA
Cable reel capacity	60m
Drilling arm
Advance compensation	2000mm
Parallel maintenance	All-round
Advance beam flipping	360°
Rock drill
Model number	A18D/L
Drill tail	T38
Aperture	33~76
Maximum impact frequency	60HZ
System pressure	230bar
Rotary system	230
Rotational speed	215
Maximum rotational torque	1000N.m
Propulsion beam
Model number	TF12R
Total length	5558mm
Drill pipe length	3700mm
Drilling depth	3400mm
Weight (including rock drill)	575Kg
Thrust	15KN