HF-44A intelligent control core drilling rig is one new design diamond drill bit and alloy drill bit core drilling equipment, it is researched and designed by our factory expert together with famous NWPU expert.

It also can be used for engineering geological exploration ,shallow petroleum and natural gas mining ,mine tunnel ventilation ,drainage,water well drilling and large diameter foundation pile construction, it has intelligent control,safe ,efficient comfortable and innovative features.

1.Application of fully digital electrical control system, can set the torque limit value according to the torsional strength of drill pipe as the machine is working, when the load is too large or sudden increase, it can warning earlier. All the data appear on the screen intuitively. Workers can take corresponding actions in advance according to the informations, the phenomenon such as sticking, sudden increase of load.

2. Drilling rig's rotary is driven by dc speed regulating motor, rotary speed can realize stepless speed change in a certain range. Can regulate freely rotary speed according to the working condition of drilling rig.
3. Drill winch is driven by ac frequency conversion motor, the control system is separated from its host, hoisting speed and realize stepless speed, effectively improve the efficiency of construction, and avoid the personal injury accidents when put up drilling tools.

1. Are you trading company or manufacturer?
We are professional manufacturer, and our factory mainly produce water well drilling rig, core drilling rig, DTH drilling rig, piling rig, etc. Our products have been exported to more than 50 countries of Asia, South America, Africa, and get a good reputation in the world.

2. Are your products qualified?
Yes, our products all have gained ISO certificate,and we have specialized quality inspection department for checking every machine before leaving our factory.

3. How about your machine quality?
All of our machines hold the ISO, QC and TUV certificate, and each set of machine must pass a great number of strict testing in order to offer the best quality to our customers.

4. Do you have after service?
Yes, we have special service team which will offer you professional guidance. If you need, we can send our engineer to your worksite and provid the training for your staff.

5. What about the qaulity warranty?
We offer one-year quality warranty for machines' main body.

6. How long can you deliver the machine?
Generally, we can deliver the machine in 7 days.