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Type: PCD coal mine roof drill bit, Size: 42mm, Ctters: Forced, Application: Wide range rock formation, sandstone, long life - details see: https://www.machineto.com/42mm-pcd-coal-mine-roof-bolt-bits-for-sandstone-10317410

About PDC:

Polycrystalline Diamond is a diamond complex produced by diamond sintered with bond under high temperature and high pressure. It has very high wear ability and high thermal stability. It’s the ideal material for mining and geological drilling bits, while the PDC drillbits have high drilling efficiency and longer life.

Characteristics:

Type: 2 wings PDC roof bolt bit

Size: φ25-φ42(mm)

Application: It is suitable for different rocks, applicable rock formation: f≤12. The drill is of a long lifespan and stable performance. The drilling efficiency of medium hard rock (sand rock) could be greatly improved.

XI’AN J.W. ROOF BOLT DRILL BITSdivided into 2 kinds, one kind is double wings roof bolt bits, and the other kind is triple wings. All suitable for drilling the anchor-network support holes in the coal mine. No sinkhole and high successful hole rate. It could greatly improve the drilling efficiency for the medium-hard (i.e. sand rock).

Choose and Application of PDC Bits

The reference table of PDC Anchoring bits suitable for rock formation

Type		Rock formation to be suited to
PDC Anchoring bits with 2 wings	Half-piece PDC bits	suitable for soft-medium hard rock(f≤8)
	Complete-piece PDC bits	suitable for medium hard rock(f≤8)
	Half-piece forced PDC bits	More integrated and hard rock(f≤12)
	Complete-piece forced PDC bits	Integrated rock(f≤12)
PDC Anchoring bits with 3 wings	Half-piece PDC bits	More integrated and hard rock(f≤12)
	Half-piece forced PDC bits	Integrated rock(f≤12)

Our products advantages:

a/Our diamond cutters are the hardest and most durable in the industry. The diamond thickness varies depending on the requirements if the project.

b/We manufacture PDC drillbits in many different types and size to meet the specific of any drilling application.

c/We have an excellent technical team and they are good at research and development ability.

d/We have 15yrs production experience in PDC drillbits manufacture field.

e/ We promise the good quality, fast delivery and well after-sales.

Photos of our PDC roof bolt bit:

Your any request are welcome!