Portable Drilling Rig Full Hydraulic Tunnel Drilling Rig for Hydropower Station

Over the years, the company has been adhering to the business philosophy of professionalism, focus, and excellence, and has always concentrated all of its strength in the field of NRAU Drill Rod, Impregnated Diamond Rod Shoes, Casing Shoes Rod Shoes. Our company adheres to the business philosophy of honesty and professionalism, and is dedicated to providing every customer with the fastest and most efficient service. We vigorously implement low-cost, independent innovation, talent strengthening, and brand strategy to enhance our strength. The company has fully extended the quality control of the manufacturing system to the service guarantee system, realizing the overall improvement of service quality.

U800 Series Portable Hydraulic Drilling Rig Have Such Benefits:

1. Powerful & Reliable
* Direct feeding oil cylinder, the feeding control and stability are increased, easy for maintenance.
* Equipped with unique rod holder with safety and simple design, be friendly with driller for using and maintenance.
* Modified rotation unit with more powerful feeding force, work longer without maintenance. It is really reliable.
* Reliable power pack, which can maximize the performance of the rig.
* Simple but obvious operation panel for easy handling.

2.Easy Operation
* Unique design for installation location, making installation quickly and simply.
* Mature hydraulic system for excellent operation experience. Minimize the risk of personal injury and lower labor strength, meanwhile the safety can be assured.

Technical Parameters
* Rotation Unit
AQ-HQ and BQ-HQ two sizes of rotation units can be chosen, which have good interchangeability, each one includes one hydraulic motor, a sealed variable control gear box, one hollow shaft, a hydraulic chuck. The gear box has two transmission gears for variable control, combined with speed-governing motor, it can be speed adjusted infinitely in a safe range, so the drilling efficiency is improved. Changes of jaws on the chuck is easy and quickly, the powerful clamping capacity can clamp the rod strings tightly even if at max. Lifting force.

Thanks for the stable and simple structure design of the rotation unit, it can be worked properly indoor temperature is +40℃, failure rate is low for longer working time without maintenance.

* 1&2 here means the displacement of the hydraulic motor *

* Rod Holder
1) Opens and closes hydraulically, in case lose of lose of hydraulic pressure, the rod holder closes instantly to prevent dropping of drilling string in the hole. Safety is the priority at the job site, we treat is seriously.
2) Open size of jaws is bigger enough for allowing the free pass of full set of drilling tools, the change of chuck jaws is quickly and safely.

* Optional reaming shell for hole opening with 146mm drill bit. *

Two types of feeding arm can be selected. All of them are driven by oil cylinder with sophisticate design, which can be moved forward and backward, so the location of drilling rig and handling accidents will be easier, the tracks there can be customized. Totally, it is suitable for underground working condition, the operational costs is lowered, maintenance is minimized.

* Chassis
Our special designed chassis can make the drilling rig moved 360° horizontally without moving rig itself, by using of oil cylinder can make the drilling rig rotated 360° vertically. It is versatile for 360° drilling perfect for your underground drilling with convenience.

* Mast
The mast is divided in three pieces, the middle part can be dismantled for catering for confined spaces in tunnel. Through the different combination of assembly, 1.5m and 3m core barrel assemblies can be used to maximize the performance according to customer's project. Rod bracket roller is mounted for lowering labor strength, the mast can be dismantled easily for free transportation in tunnel.

* Hydraulic Winch
Mounted on the chassis, hoisting stable with increased lifting force. Simple structure maintenance-free design, due to the perfect matching with the hydraulic system, it will start work instantly when you are lowering drilling tools into the hole, and it can be suspended at any position.
Electrical wireline winch is available as a option for customers to choose, however it may need some professional technical support from our engineer to ensuring the performance of matching.

* Control Panel
It is a user-friendly portable hydraulic drilling rig, all of the functions control there are simple, one work can perform the drilling job successfully, for example: Feeding, hoisting, lifting and lowering the drilling tools, make and brake drill rods, etc. The gauges indicate rotation pressure, system pressure and pump pressure, user can get real-time information of the drilling rig and the inside of the hole.

* Power Pack
High efficiency electric motor equipped with piston and gear pumps, hydraulic oil cooler and filter, road wheels design is suitable for moving in the tunnel. This is really a compact design with reliable performance and less maintenance. For daily using, you only have to do is changing oil filter, hydraulic oil and adding lubrication oil regular.
Note: For extreme condition, air cooler is optional for better cooling.

* Drilling Capability (m)

Note: The drilling depth capability of the above-mentioned may be different due to the factors such as formation conditions, geographical location, supporting equipment, and technical level of drillers.

* Dimension & Weight
Working Status L*W*H (mm)

Transportation status L*W*H (mm)

Weight (kg)

The company adheres to the business philosophy of "integrity, efficiency, innovation and win-win", insists on the road of scientific and technological innovation and sustainable development, and takes the responsibility of building an advanced brand in the Portable Drilling Rig Full Hydraulic Tunnel Drilling Rig for Hydropower Station industry. Our company has won the trust and favor of customers with excellent quality, accurate delivery time and considerate service. Over the years, the company has been continuously developing new technologies and new products, improving the scientific and technological content of products to meet the market demand.