I.   Application

DF-Y-42 is a kind of core drill driven With tungalloy-carbide-tipped bit and diamond-bit, small

diameter. It is mainly suitable for exploration of metal or non-metal solid mineral ore bed. It is widely applied in the field of geology, metallurgy, coal mine, hydrological and engineering drilling. It can also be used in the fields of superficial-zone petroleum and natural gas mining, mine workings ventilation and water discharge tunnel drilling as well as foundation pile construction in large diameter.

II. Characteristic

1, 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).
2,  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.
3,  In two reverse speeds, it is suitable to deal with faulties.
4,  With the features of reasonable power and lower oil temperature, it adopted simplex hydraulic gear pump for oil supplying.
5, Double-action hydraulic chuck in powerful clamping force.
6,  In light weight, easy disassembling (into nine parts), and convenient for maintenance and repair, due to the advantages of compact structure and reasonable layout.
7,  It steadies in the high drilling speed because of its smooth movement and low center of gravity.
8,  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.

III.  Specifications

  Wheel mounted core drilling rig

Working site of DF-Y-42

 Please kindly tell us your detailed requirement then our professional engineers will give 

you the most suitable suggestions.

1. What kind of projects you will work for?
---Water well, Borehole, Exploration coring, Foundation Piling, Blast holes, Geothermal 
air-conditioner holes or others?
2. The Max. depth of drilling you hope to achieve?
---For DF-Y series, it can reach 300-4000m with different models.
3. The Min. and Max. hole diameter you want?
---Usually 96-118mm.
4. Condition of the environment?
---Soft ground like soil, mud, sand. 
---Hard ground like hard rocks .
---Or mixed.

  DERY Service
1.Professional technical support pre-sale, sale and after-sale .
2.Your problems can get feedback in 8 hours and solved in 24 hours.
3.Machine can be customized as per your requirement.
4.One year quality warranty.
5.Training: operation manual and DVD operation video, overseas installation is also 
available.
6.Spare parts are available in our factory at cost price for former customers.

Zhengzhou Defy Mechanical & Electrical Equipment Co., Ltd. has more than 40 years experience of production and development of drilling rig equipment.Our drilling rigs are widely applicable for water well, farm irrigation, geological prospecting, small pile foundation, geothermal

air-conditioner and so on, capable and functional. Our professional engineer and sales teams, offering technical support and useful advice whenever you need.

Thanks for browse our products information. If you have any question, or want to know more about drilling rig, Pls contact me directly:

Nora

Skype/MSN: nora-drillingrig @

Phone/WhatsApp: +86-15286806707

Email: nora @

Tel: 86-371-55819257

Fax: 86-371-66770722