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 a trading company or a manufacturer?
We are a professional manufacturer. Our factory mainly produces water well drilling rigs, core drilling rigs, down-the-hole drilling rigs, pile drivers, etc. The products have been exported to hundreds of countries around the world and enjoy a high reputation all over the world.

2. How is the quality of your machine?
Our products pass strict quality inspections before they leave the factory to ensure that they are qualified before they are shipped.

3. How to inspect the goods?
1) Support customers to come to the factory for on-site inspection.
2) Support customers to designate third-party companies to inspect goods.
3) Support video inspection.

4. Do you have after-sales service?
Yes, we have a dedicated service team that will provide you with professional technical guidance. If you need, we can send our engineers to your workplace and provide training for your employees.

5. How about quality assurance?
We provide a one-year quality guarantee for the main machine of the machine.

6. How long is your delivery cycle?
1) In the case of stock, we can deliver the machine within 7 days.
2) Under standard production, we can deliver the machine within 15-20 days.
3) In the case of customization, we can deliver the machine within 20-25 days.