Drilling Tools

168mm Recycle Ring Bit Casing Drilling by DTH Hammer

  • Standard:SGS
  • Material:Carbon Steel
  • Transport Package:Wooden Case
  • Trademark:MING
  • Origin:Made in China

Base Info

  • Model NO.:MRING168
  • HS Code:8207199000
  • Production Capacity:5000PCS,Year


Basic Info.

Model NO. MRING168 HS Code 8207199000 Production Capacity 5000PCS/Year

Product Description

168mm Recycle ring bit casing drilling by DTH Hammer

Casing O.D.: 168mm
Casing Wall Max: 13mm
Ring Bit I.D.: 125mm
Ring Bit O.D.: 185mm
Pilot Bit O.D.: 140mm
DTH Hammer: 5''
DTH Pipe: 76mm, 89mm

Rock drilling tools factory KINGDRILLING professionally produce casing drilling system by DTH hammer which designed to drill and case a hole simultaneously through unstable ground conditions. The system consists of a driver bit,integrated ring with casing shoe.The internal flushing grooves together with the built-in casing shoes gives a good seal to the button of the drilling hole, and thus mini missing the disruption of the surrounding of the drill hole.

Application Range:
It is suitable for geothermal wells, drilling water wells, micro piles ,medium mini-type grouting hole of building , dam and harbor project .

How to work:
1. Ring bit and casing shoe assembly is welded to casing prior to drilling. Lock the assembly into pilot bit with DTH (Down the Hole) or top hammer. The upper shoulder of pilot bit engages the shoulder of casing shoe.
2. DTH or Top Hammer's percussive energy is transferred through the pilot and ring bits, crushing rock. Some part of impact energy advances casing.
3. On completion of drilling and casing, the drill string with pilot bit is retrieved by a slight reverse rotation to unlock the bayonet coupling. The ring bit stays in the hole, and can also be recovered only if the casing is retrieved.
4. Drilling continues to the desired depth in the bedrock using a conventional drilling.

Casing drill Bits Advantages:
  1. Full face head design for faster penetration and straighter hole,
  2. Less torque is required.
  3. It can drill in vertical, horizontal or any direction
  4. Minimize disruption to the drilled hole
  5. Varied ring bit diameters to suit different casing requirement

Our Service
1.Pre-sale service:
If demand, assist clients to get rich and generous returns on their investments.Select DTH tools model.Design and manufacture down the hole products according to client's requirement.
2.Services during the sale:
Assist clients to draft solving plans.
Pre-check and accept Rock drill products ahead of delivery .
3.After-sale services:
Our sales team will response for your question within 24 hours (Holidays Excluded)
Technical Support will be available in any time.
Free replacement can be provided once the failure confirmed caused by our product quality.
168mm Recycle Ring Bit Casing Drilling by DTH Hammer