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Symmetric Casing Drilling

Robit Ring Bit Casing System

Robit dring casing ring bit are designed to drill and case a hole simultaneously through unstable ground conditions.
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Robit Ring bit casing drilling by DTH Hammer

KINGDRILLING professionally produce Robit casing drilling by DTH hammer which designed to drill and case a hole simultaneously through unstable ground conditions.


Product feature:

Rock Drill Bits Advantages:

1. Less torque is required.

2. Minimize disruption to the drilled hole

3. Varied ring bit diameters to suit different casing requirement

Specification

MAX OD of reamer bit

MAX OD of pilot bit

MAX ID OF Casing shoe

Data

168-DHD350 Robit Casing bit

186

155

138

Casing tube OD168mm,,wall thickness 6mm,casing shoe and reamer ring is integrated. Match HD360 hammer

152-DHD340 Robit Casing bit

168

139

120

Casing tube OD152mm,,wall thickness 6mm,casing shoe and reamer ring is integrated. Match HD340 hammer

140-DHD340 Robit Casing bit

156

122

102

Casing tube OD140mm,,wall thickness 8.8mm,casing shoe and reamer ring is integrated. Match HD340 hammer

133-DHD340 Robit Casing bit

146

120

101

Casing tube OD133mm,,wall thickness 6mm,casing shoe and reamer ring is integrated. Match HD340 hammer

133-CIR110 Robit Casing bit

146

120

101

Casing tube OD133mm,,wall thickness 6mm,casing shoe and reamer ring is integrated. Match CIR110 hammer

114-HD35 Robit Casing bit

132

104

87

Casing tube OD 114mm,,wall thickness 4.5mm,casing shoe and reamer ring is integrated. Match HD35 hammer

114-CIR90 Casing bit ROBIT

132

104

87

Casing tube OD114mm,,wall thickness 4.5mm,casing shoe and reamer ring is integrated. Match CIR90 hammer

140-T45, T51 Robit Casing bit

156

122

102

Casing tube OD140mm,,wall thickness 8.8mm,casing shoe and reamer ring is integrated. Match HD340 hammer


How to order:

Casing Tube OD & ID + Reamer Bit Diameter + Minimal Casing Shoe ID + Hammer Shank Style


How to choose the suitable head face of the DTH drill bit?

a. Concave:

Suitable for all kinds of formation, especially for deep well drilling, perpendicularity of the hole is wonderful.

b. Convex: 

Suitable for the formation of moderate hardness stratum, drilling efficiency is good, borehole perpendicularity is moderate.

c. Flat:

Suitable for special hard formation stratum, especially for fracture, crack spacing and complex formation drilling effect is very good, has the good perpendicularity of the borehole.

 

FAQ:

1. Can I expect a quality products?

A: Yes. mature production technology ensuring the quality satisfy international request.


2. How to check the product are the exact one you want?

A: If possible, please attach one reference picture to avoid any misunderstanding or any links from ou website for a better understanding.


3. Fast delivery time:

A: Usually it takes 25 days for production.only 3 or 5 days if we have stock of your request size.


4. Shipping way:

A: Sample order: we suggest Courier express delivery such as DHL/UPS/TNT/FEDEX or by air

Bulk order: by air or by sea we suggest.


5. Competitive price:

A:KINGDRILLING factory can supply you the lowest price due to direct sale to customers without distributor!


6.What is the materials?

Steel is TIMKEN, Alloy is from T6 from Element Six.

 

 

 

 


Hot Tags: robit ring bit casing system, China, manufacturers, price, in mining, made in China
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