jumbo drill is specially designed for underground mining, metallurgy, water electricity, railways, highways, tunnels, culverts narrow mine roadway excavation blasting holes and drill holes, the work mechanism adopts full hydraulic pressure drive, drilling speed can reach 0.8~2 m/min, the engine provides walking power, the fuselage is small, compact structure, low center of gravity, flexible, stable work, etc.Jumbo drill is not only to improve working safety and also reduce the working strength of laborer and improve work efficiency.

 Advantages

1. Hydraulic boom:

Hydraulic boom with double tripod suspension for accurate hydraulic parallel holding in all directions; Direct, fast, easy operation, good accuracy and accurate positioning between holes.

Telescopic boom make up of the angle when drilling the hole of bottom and top, thus no blind angle left.

American HELAC rotary actuators with high rotation torque, high load capacity, no position shift, compact, good anti-pollution capacity, heavy-duty etc.

2. Rock drill:

France Montabert rock drill with high hardness, high drilling speed, low drilling tool wastage, low failure rate etc.

3. Hydraulic feed:

Heavy-duty aluminium feed with high bending and torsional resistance for maximum durability.

Snap-on stainless steel sleeves & polymer contacts.

4. Carrier:

Sturdy, articulated carrier with four-wheel drive, powered by diesel engine, High speed and flexible transition improve the working efficiency.

Central lubrication system.

Four jacks for stable set up.

5. Control system

Hydraulically controlled drilling system which incorporates the anti-jamming function rotation pressure controlled feed(RPCF); Impact, Rotation and feed adopt separate hydraulic pump, independent control loop ensure the stable power output.

6. General:

Cable reel, control the cable automatically, save labor and improve the safety.

FOPS telescopic protective proof.

Electrical driven piston compressor.

Working lights.

Pre-Sales Service

* Inquiry and consulting support. 

* Performance testing support. 

* View our Factory

After-Sales Service

* Free training how to use the machine in our factory.

* Engineers available to service machinery overseas.

Commissioning, maintenance and repair, spare parts

Experienced technicians are available for commissioning and training on site and can also undertake maintenance and repair work. Well-stocked spares ensure short-term deliveries to locations of operation worldwide.

 DEFY drill jumbos are the result of a decade-long, worldwide employment in underground mining, tunneling and gallery construction. A complete range of customized drill jumbos, made from a modular system of proven components, are offered for a variety of applications. Defy drill jumbos are highly efficient in underground blast hole drilling, bolting, grouting and probe hole drilling for strata reconnaissance.

A large choice of undercarriages, booms, drill feeds and rock drills is the basis of optimal equipment tailored specifically to each particular job. The modular design of DEFY drill jumbos allows them to be easily transported, assembled and dismantled while ensuring that simple maintenance is also possible.

Robustly built, providing high availability and long service life, DEFY drill jumbos have been proven time and again throughout the world under the most adverse conditions. On request, DEFY can design and manufacture special models for a wide range of applications that go beyond the ordinary.