Description: 1.XY-44 is a core drilling machine, more rational rang of rotating is available and its rotating speed has 8 grades. With powerful drilling capacity, the rated drilling depth comes up to 1,400m with wire line 80mm drill rod. 2.The drill is aligned a water brake for steady and smooth deep hole drilling. 3.Supplying oil with a simplex gear pump, it is easy for installation and operation;The hand-operated oil pump can be put in use to hoist the drilling tools in hole upon the power engine failing to operate. 4.With large spindle I.D.80mm, the rig is fed with double hydraulic cylinders with longer stroke up to 600mm. With strong technological adaptability, the rig can be adapted on many field, especially on large diameter drill rod drilling, with wire line coring (upper part coring). Thus its more effective in improving drilling efficiency with less incidents in hole. 5.It is easy to get to know the conditions in hole with an antivibration meter. Less…