PDC Drill Bit

PDC drag bit is composed of a series of blades, usually three or four in number, which produce a shearing action when rotated. It is suitable for drilling in soft and soft-medium formations with fast penetration rate and high efficiency, and special for the large diameter holes drilling.

They are comparatively inexpensive due to the lack of moving parts and they can penetrate softer formations such as stiff clays and mudstones very quickly.

Available Sizes: 

Recommended Applications:

Coal mining

Water well and hole drilling

Masonry and geotechnical drilling

Construction rock drilling

PDC anchor shank bit is the most basic part of roadway support in coal mines. It can bound the surrounding rock of roadway together, and make the surrounding rock to support itself. Roofbolt drill bit is a kind of drilling tool for fixing anchor bolt of coal mine. 

The two wings of our PDC roofbolt drill bit adopt PDC (Polycrystalline Diamond Compact) as the cutting tooth, the application of PDC has greatly improved the drilling efficiency of roofbolt drill bit, and is taking the place of tungsten carbide roofbolt drill bit gradually.

Specifications:

• Bit diameter: φ26, φ27, φ28, φ30, φ32, φ42

• Thread shank: M14, M16, R17, R22

• PDC shape: Flat or Dome

Features

• With the perfect stability in penetration and hole drilling of PDC, it will not easy to be collapsed.

• The service life of this drill bit is 10-30 times longer than normal alloy bits when drilling the same rock formation.

• No need to sharpen. This bit can lower work intensity and save man-hour.

 

PDC core bits use slot face discharge hole type. It's often adopted in pdc bit, TSP bit, and has bigger flow capacity, which minimizes the occurrence of discharge hole blockage. It's suitable for drilling in fractured formations where there is much flushing fluid and rock debris.

PDC core bit is mainly used in the soft formation, and it has high speed footage and anti-wearesistance.

Available Sizes:

Features

• PDC cutters are set on the crown of the bits.

• With long working life, fast penetration and high percentage core recovery.

• Ideal to set it on high powered drill rigs operating at relatively low rotation speeds.

• The life and penetration is much better than surface setting bits.

 

Recommended Applications:

Geological prospecting

Environmental investigation

Mineral exploration