Specifications

1.Outside Diameter:108~508

2.Application:mining ,water well drilling,oil drilling,machinery etc.

3.Technique:hot rolled

Application Range

Drilling of water wells,geothermal wells,short micro piles,medium mini-type frouting hole of building ,dam and harbour project,etc.

Advantage

Brief structures,simple operation,reliable quality,stable performance,long service life

Operation Procedure

1.When drilling starts,the reamer opens and enlarges the hole to drive the casing shoe and casing tube down,

2.When the drilling in overburden formation is finished,reserve the rotation to close the reamer,then the assembly can be pulled up through the casing tube.

3.The casing tube can be left in the hole,or can be pulled out by means of frout sealing material.

4.Use the normal drilling tools to drill and achieve to the desired depth.

Description	Size
2 3/8(NC26)	Φ80*220
2 7/8	Φ90*240
3 1/2(NC31,NC35)	Φ110*280
4 1/2(NC38,NC46)	Φ140*300
5 1/2(NC50)	Φ170*320
6 5/8	Φ180*350
7 5/8	Φ220*350
8 5/8	Φ250*360

Adapters

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