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JC712 Fully Hydraulic DTH Drilling Rig for Mineral Versatile Use

Hole Range

90-140mm

Hole Depth

35m

Recommend Chassis Type

Crawler

JC712 is a versatile full-hydraulic down-the-hole drilling rig engineered for medium-depth drilling across diverse geological formations. Supporting drilling depths up to 35 meters and adaptable rod lengths of 2 or 3 meters, it provides flexible solutions for construction, geothermal projects, water well drilling, and geological exploration. The rig integrates a high-torque rotary system, stable hydraulic feed mechanism, and a fuel-efficient Yuchai power unit to ensure reliable penetration and smooth drilling control. With compact transport dimensions, a reinforced chassis, and strong off-road mobility, JC712 achieves excellent site accessibility even on rugged terrain. Its dry-type dust collection system and intuitive operation interface further enhance safety, environmental performance, and overall work efficiency.

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Functions and Features

Main Components

The feed system utilizes an oil cylinder with 3340mm stroke and 900mm extension, providing a feeding force of 15kN and lifting force of 25kN for smooth rod handling. Supports drill rods of φ64mm in 2000mm or 3000mm lengths, and compatible with 3" or 4" DTH hammers for versatile drilling needs.
Carefully engineered protective cover combines aesthetic appeal with ease of maintenance, reducing downtime and improving durability.

Equipped with Yuchai 70kW YC4A100-T20 engine, delivering stable power output and efficient fuel consumption for continuous drilling operations. Dual-motor rotary head provides a maximum torque of 2500N·m and rotation speed up to 140rpm, ensuring reliable performance across diverse rock conditions.
Compact and ergonomic design features an integrated operating platform, enhancing operator comfort and control during drilling tasks.

Features Introduction

Product Description

The JC712 is a fully hydraulic down-the-hole drilling rig designed for medium-depth drilling across diverse geological formations. It supports drilling depths up to 35 meters with 2–3 meter drill rods and accommodates φ90–140 mm hole diameters. Powered by a fuel-efficient 70 kW Yuchai YC4A100-T20 engine, the rig features a dual-motor high-torque rotary system, oil-cylinder feed mechanism, and rugged crawler chassis for reliable performance, smooth rod handling, and strong off-road mobility. Its compact dimensions, ergonomic control panel, and optional 12-core dry-type dust collection system ensure operational efficiency, safety, and environmental friendliness, making JC712 ideal for construction, geothermal drilling, water wells, and geological exploration in challenging terrains.

High-Torque Rotary System

Dual-motor rotary head delivers up to 2500 N·m torque with rotation speeds up to 140 rpm, ensuring reliable penetration in both soft and hard rock formations.

Rugged Mobility & Compact Design

Crawler-mounted chassis with 35° climbing capacity and 450 mm ground clearance enables efficient operation on uneven terrain. Compact dimensions (5550×2290×2600 mm) allow easy transport and maneuvering.

Environmentally Friendly & Operator-Friendly

Optional 12-core dry-type dust collection system reduces environmental impact. Integrated rear control panel offers intuitive operation, maximizing comfort and efficiency on site.

Product Specifications

Specifications	Unit	JC712
Drilling Specifications
Hole Depth	m	35
Hole Diameter	mm	φ90-140
Drilling Rod Diameter	mm	φ64
Drilling Rod Length	mm	2000 / 3000
DTH Hammer Size	inches	3" / 4"
Rotation
Maximum Rotary Torque	N·m	2500
Rotation Speed	rpm	0-140
Lifting Force	kN	25
Feed System
Feed Type		Oil cylinder
Feed Stroke	mm	3340
Feed Extension	mm	900
Feed Force	kN	15
Engine
Engine Brand		Yuchai
Engine Model		YC4A100-T20
Rated Horsepower	kW	70
Fuel Tank Capacity	L	70
Air Compressor Demand
Working Pressure	MPa	0.7-1.8
Air Consumption	m³/min	10-18
Weight & Dimensions
Weight	kg	5278
Transport Dimensions (L×W×H)	mm	5550 × 2290 × 2600
General Specification
Tramming Speed	km/h	0-2
Climbing Capacity	°	35
Ground Clearance	mm	450
Winch		Optional
Dust Collector		12 Core Dry Type

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OEM Customization

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Depth

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