The full hydraulic underground drilling rig HFU4A is applied to the following fields: coal, metallurgy, geology and engineering, etc. It is used in the largediameter gas drainage and the water injection hole of mine, tunnel and coal mine. It is also used in the large-diameter horizontal drilling surface engineering.

HANFA GROUP have exported to more than 60 countries,our customers applaud the manufacture quality.We welcome the friend who come from all parts of the world sincerely, we will make great efforts to offer better products to customer.HANFA GROUP also welcome our friends to visit our factory and inspect our products.Cooperation or not,you still our friend,you will feel you just stay at home when you come to our factory.Welcome your coming!

Hanfa Group established in 1998 is a key enterprise in the industry of geological exploration and water well field, with the ability to research, manufacture and market.Now, the Group pursues high standard manufacturing and qualified products. It has more than 20 species such as  water well drilling rig,core drilling rig,DTH drilling rig,rotary drilling rig,engineering drilling rig, hydraulic underground drilling rig, full hydraulic directional drilling rig,etc.  These machines are mainly used in geological prospecting, exploration of railway and highway engineering, mining, SPT, water well, geothermal well etc. Some of them won the Scientific and Technical Advance Prize or the National Scientific Research Achievement Prize. All the products have passed the quality system certification of ISO9001:2000 and are national inspection-free products.

Our products has been authorized and certified by TUV and ISO9001:2008. We guarantee the quality of the machines for one year after the trial run (excluding the wearing parts), but not exceeding 15 months from the date on which machines leave the factory.