Product Name: 206mm MK5E193 Overburden Eccentric Casing Drilling Bits Hammer With DHD360 Shank For Construction

Product category: Overburden eccentric casing bit

Matched casing pipe OD: 193mm

Matched hammer: Hammer DHD360

MK5E eccentric casing bit feature:

When drilling in soft and loose ground with scattered boulders, the soil and clay are caved in, which creates drilling difficulty to withdraw the DTH drilling equipment and lowers the drilling speed.

To overcome this problem, KINGDRILLING Eccentric Type Overburden Casing Drilling System to enable drilling and lowering the casing simultaneously. This prevents the soil from collapsing into the drilled hole.The systems are designed to drill the hole diameters bigger than the casing diameter. When reaching the required drilled depth, the DTH hammer and Overburden Drill System can be withdrawn from the hole. If the bed-rock level is reached and further drilling is needed, you can simply change the bit to a conventional DTH bit.

The MK5E eccentric casing bit is designed with a hardened surface treatment that ensures a longer operating life and excellent anti-wear properties. Its simple structure not only minimizes the chances of structural failure but also provides a convenient operation experience.

MK5E eccentric casing drilling bit technical data

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

Kingdrilling overburden casing bit advantage:
1. Hardening treatment of the part’s surface:with longer operating life and excellent anti-wear properties.

2. Structural optimization:Strengthen the structural strength, easy to operate
3. Superior performance:Stable and reliable performance, high drilling speed

FAQ:

1. What is the purpose of surface casing?

Surface casing is set to provide blowout protection, isolate water sands, and prevent lost circulation. It also often provides adequate shoe strength to drill into high-pressure transition zones.

2. How much PSI do I need for air tools?
Between 70 and 90 PSI

The majority of air tools require 70–90 PSI. Ninety PSI can be easily reached by any light-to-medium duty air compressor, but you should always have the compressor producing more flow than is required. Expert Advice: Never disregard a PSI rating. Insufficient air volume will cause the tool to function improperly.

3. Where does overburden go during a mining operation?

Road and building construction aggregate, reprocessing, and contouring are some uses for overburden. Reclaimed mine tailings are used to make concrete, glass, tiles, and clay. After being cleaned, mine water is used as a coolant, in industry and agriculture, and to control dust and particulates.

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