TUBEX OVERBURDEN SYSTEM for down the hole drilling
TUBEX OVERBURDEN SYSTEM
Tubex is a cost efficient system leaving less material behind in the hole. Email us Request a quote tubex-specification-sheet-english.pdf (PDF document, 78 kB) Sandvik Tubex is designed for down-the-hole drilling, and enables increased efficiency and productivity, whilst leaving less waste material in the hole.
When simultaneously drilling and casing through loose overburden materials, Sandvik's Tubex system will give you a great result. Tubex is a cost efficient system leaving less material behind in the hole.
Roschen Tubex overburden system is designed for down-the-hole drilling, and enables increased efficiency and productivity, whilst leaving less waste material in the hole.
|Eccentric Casing System ( Eccentric Overburden Drilling System)|
|Type||Casing Recom.Size (mm)||Min Inner Dia.of Casing shoe Dia(mm) D||Reaming Dia (mm) C||DTH HAMMER||Drill Pipe||Part No.|
|Max.OD (A)||Min.ID (B)||Connection Thread||O.D.(mm)||Wrench Flat(mm)|
|ODEX90||115||102||90||123||DHD3.5||API 2 3/8" Reg||76||65||ODEX90-DHD|
|ODEX115||142||128||115||152||DHD340||API 2 3/8" Reg||76||65||ODEX115-DHD|
|ODEX140||171||157||140||187||DHD350R||API 2 3/8" Reg||89||65||ODEX140-DHD|
|ODEX165||196||183||165||212||DHD360||API 3 1/2" Reg||114||95||ODEX165-DHD|
|ODEX190||222||205||190||237||DHD360||API 3 1/2" Reg||114||95||ODEX190-DHD|
|ODEX240||273||260||240||306||DHD380||API 3 1/2" Reg||114||95||ODEX240-DHD|
|ODEX280||327||305||280||370||SD10||API 4 1/2" Reg||114||95||ODEX280-SD|
. Available for casing sizes from 114mm (4 1/2") to 273mm (10¾") diameter Simple two-part design for better transfer of energy to Bit face
. Optimal drilling performance in unstable ground conditions
. The Eccentric Bit can be easily and quickly removed for replacement or refurbishment
. "open and closed" locking arrangement inside the bit holder so nothing can prevent the Eccentric Bit from closing
. The ODS Bit has a positive pilot design which helps guide the Eccentric Bit and produce a straighter hole
It is suitable for drilling water wells, geothermal wells, short mirco piles, medium mini-type grouting hole of building, dam and harbour project.
1. When drilling starts, the reamer swings out and reams the pilot-hole wide enough for the casing tube to slide down behind the drill bit assembly.
2. When the required depth is reached, rotation is reversed carefully, whereupon the reamer swings in, allowing the drill bit assembly to be pulled up through the casing.
3. Casing tubes that are to be left in the drill hole should be sealed at the bottom of the hole by means of cement grout or some other sealing agent.
4. Drilling continues to the desired depth in the bedrock using a conventional drilling.
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ROSCHEN@ HOLDINGS LIMITED
HEFEI ROSCHEN@ TOOL CO., LTD.
ROSCHEN@ GEOLOGICAL TOOL CO.,LTD.
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ROSCHEN@ GEOLOGICAL INSTRUMENTS CO., LTD.
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