质勘探、水文水井钻进，以及大口径基础桩工程。

XY - 44 a drilling rig is mainly suitable for core drilling is given priority to with alloy and diamond drilling, can also be applied to engineering geological exploration, water well drilling, as well as the large diameter pile foundation engineering.
 XY-44A型钻机的主要特点：
1.具有较多的钻速级数 （8级），和合理的转速范围，低速扭矩大（最大达8000牛顿.米）,既适合以合金、金刚石岩心钻进，也可用于工程地质勘察，水文水井钻进和基础桩工程施工。
2.立轴通孔直径大（直径93mm）,双轴缸液压给进，行程较长（可达600mm），工艺适应性强，特别适合大直径钻杆绳索取心（上部取心）钻进，有利于提高钻进效率和减少孔内事故。
3.钻进能力大，直径71毫米绳索取心钻杆额定钻进深度可达1000米。
4.重量轻，可拆卸性好，钻机净重2300千克，主机可分解为10个部件（最大可拆卸部件重300千克），搬迁方便，宜于山区工作。
5.液压卡盘采用单向供油，卡盘加持力大，加持稳定。
6.配有水刹车，深孔钻进，下钻平稳安全。
7.采用单联齿轮油泵供油，安装简便，方便使用，功率消耗少，液压系统油温低，工作稳定。系统中装有手摇油泵，当动力机不能工作时仍可用手摇油泵起出孔内钻具。
8.钻机结构紧凑，布局合理，所有部件表露在外，不相互重叠，便于维护、保养和修理。
9.重心低，移车距离长（可达460mm），固定牢靠，高速钻进稳定性好。
10.配有仿震仪表，仪表寿命长，利于掌握孔内情况。操纵手把较少，操作灵活可靠。通用化程度高，该机与XY-4A型钻机通用件达60%，与XY-2型钻机通用件达75%。

The main characteristic of XY - 44 type a rig:
1. With more drilling rate series (8), and reasonable speed range, low speed torque (maximum 8000 Newton. M), suitable for both with alloy, diamond core drilling, also can be used in engineering geological exploration, water well drilling and pile foundation construction.
2. The vertical shaft hole diameter (93 mm) in diameter, biaxial cylinder hydraulic feed, a longer stroke (600 mm), process adaptability is strong, especially suitable for large diameter pipe rope coring (upper) of coring drilling, to improve drilling efficiency and reduce the hole accident.
3. The drilling capacity big, wireline coring drill pipe nominal diameter of 71 mm drilling depth of up to 1000 meters.
4. Light weight, good removable, rig net weight 2300 kilograms, the host can be decomposed into 10 parts (maximum removable parts weighs 300 kilograms), convenient move, like mountain work.
5. Hydraulic chuck used one-way fuel supply, chuck blessing strength and stability.
6. Equipped with water brake, deep hole drilling, drilling a smooth and safe.
7. Using single gear oil pump oil supply, installation is simple, easy to use, less power consumption, low hydraulic oil temperature, stable work.Hand pump, are installed in the system when the engine can't work still manually operated pump up out of the hole drilling tools.
8. Drill compact structure, rational layout, all the parts show in the outside, not overlapping, easy to maintain, maintenance and repair.
9. Low center of gravity, move the car distance (up to 460 mm), fixation, high speed drilling stability is good.
10. Equipped with seismic instrument, instrument long life, to grasp the hole.Manipulation of the handle is less, flexible and reliable operation.Generalization degree is high, the machine type and XY - 4 a drill part of 60%, with XY - type 2 drill part is up to 75%.