rock drilling tools 27mm bits

Type: PDC 2 wings roof drill bit, Size: 27(mm), Ctters: Top PDC cutters, Application: Wide range rock formation, long drill life - details see: https://www.machineto.com/rock-drilling-tools-27mm-bits-10317416
Place of Origin:Shaanxi China (Mainland)Brand Name:JINGWEIModel Number:28mm roof bolt bitType:Drill Bit
Machine Type:Drilling ToolCertification:APIMaterial:CarbideProcessing Type:Forging
Use:Coal MiningDia.:27mmCutting:2wingsThread:M16
Cutters:DiamondApplication:f≤12Weight:0.1kgColor:sliver, black, brown,etc.
Dia. scope:25mm-42mmAdvantage:First choice general purpose bitDelivery term:by sea or air 
rock drilling tools 27mm bits
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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 bitssuitable for soft-medium hard rock(f≤8)
Complete-piece PDC bitssuitable for medium hard rock(f≤8)
Half-piece forced PDC bitsMore integrated and hard rock(f≤12)
Complete-piece forced PDC bitsIntegrated rock(f≤12)

PDC Anchoring bits with

3 wings

Half-piece PDC bitsMore integrated and hard rock(f≤12)
Half-piece forced PDC bitsIntegrated 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!

rock drilling tools 27mm bits
Packaging Detail:100pcs per Carton, or as the customer request.
Delivery Detail:7days

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