II. DF-Y-42 specification

III. Characteristic

- With eight rotary speeds and reasonable ranges of speed (please see the list of spindle speed). Max.torque 3.5KN·M (2580 lbf·ft) (While with lower rotary speed of spindle).

- With large spindle I.D. 93mm (3.66 inch), the rig is driven by hydraulic double cylinders With much longer stroke up to 600mm (23.62 inch). The rig is suitable for various drilling

technologies to improve drilling efficiency.

- In two reverse speeds, it is suitable to deal with faulties.

- With the features of reasonable power and lower oil temperature, it adopted simplex hydraulic

gear pump for oil supplying.

- Double-action hydraulic chuck in powerful clamping force.

- In light weight, easy disassembling (into nine parts), and convenient for maintenance and

repair, due to the advantages of compact structure and reasonable layout.

- It steadies in the high drilling speed because of its smooth movement and low center of gravity.

- Fitted with measuring scale for your good knowledge of the drilling condition at the bottom of

the hole; every handle can be operated nimbly and reliably.

1. Provide factory cost accessories all year

2. Engineers are available to service machine overseas or free training in factory

3. Online service 24hours*7 days

4. 12 months quality warranty for main body.

How to choose a suitable machine?

1. What will you do using drilling rig?

---For water project, core sample, soil test, mineral prospect or others?

2. The depth you need?

---For water well, generally, 30-200m. For core sample, 30-600m, even more.

3. Any requirements to hole diameter?

---Within a certain range, the smaller diameter, the deeper depth. Mathematically, we call it inversely proportional.

4. Working land condition?

A. soil, sand, weathered land, etc. soft stratum.

B. soil, sand, soft and hard rock stratum, mixed one.

C. Mainly hard rock, like granite.

Based on the above information, experienced engineers will help you recommend suitable machine and price. If you have special demands, please tell us in advance.