New Arrival China Core Drilling Machine - Rotary Bit for Blast Hole Drilling – TDS
New Arrival China Core Drilling Machine - Rotary Bit for Blast Hole Drilling – TDS Detail:
The Drill Store takes advantages of the latest design technology and manufacturing processes for our roller cutters, wildly used for raise boring, shaft boring and reverse circulating drillings.
The cutters use roller-ball-roller bearing configurations. Premium ball, roller bearings and proprietary grease in creasebearing life and capacity, which leads to the greatly in creased serving life of the cutters. Our Metal face seals use proprietaryo- ring material. These Metal face seals have prove n to in crease bearing life versus our competitors in harsh environments and tough drilling conditions.
Avalibale IADC
Series | Application | Operating Parameters | |
Rotating Speed(RPM) | Weight on Bit-WOB(lb/in) | ||
30 | Very Soft | 70-140 | 1000-4000 |
40 | Soft | 70-140 | 1000-4000 |
50 | Soft to Medium | 50-140 | 2000-5000 |
60 | Medium to Hard | 50-110 | 3000-6000 |
70 | Hard | 50-90 | 3500-7500 |
80 | Extremely Hard | 40-80 | 5000-8000 |
Available Sizes
Bit Size | ||
in | mm | Pin Size |
6 3/4 | 171 | 3 1/2 |
7 7/8 | 200 | 4 1/2 |
8 1/2 | 216 | |
9 | 229 | |
9 7/8 | 251 | 6 5/8 |
10 5/8 | 270 | |
11 | 279 | |
12 1/4 | 311 | |
13 3/4 | 350 |
Product detail pictures:



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abide by the contract", conforms into the market requirement, joins in the market competition by its good quality also as provides a lot more comprehensive and great company for purchasers to let them turn into huge winner. The pursue from the firm, would be the clients' gratification for New Arrival China Core Drilling Machine - Rotary Bit for Blast Hole Drilling – TDS , The product will supply to all over the world, such as: Lithuania, Roman, Belgium, Now we have a excellent team supplying specialist service, prompt reply, timely delivery, excellent quality and best price to our customers. Satisfaction and good credit to every customer is our priority. We have been sincerely looking forward to cooperate with customers all over the world. We believe we can satisfy with you. We also warmly welcome customers to visit our company and purchase our solutions.

Good quality, reasonable prices, rich variety and perfect after-sales service, it's nice!

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