100% Virgin Material Long Life Cemented Carbide Mining Drilling
Button
Cemented Carbide Button Instruction For Use
Bits need to be sharpened and serviced like any other cutting tool.
The sharper the carbide inserts are, the faster the penetration
rate will be. Also, the percussive energy from the hammer or
drifter will be transferred into the rock rather than be reflected
back into the drill string. This will save excessive "wear and
tear" on the drill string components and the drilling machine.
Rockmore International recommends re-sharpening bits when the
carbide buttons attain flats that are 1/4 (one quarter) of the
major diameter.
Drill operators should monitor the condition of the carbides
regularly, and frequently. If they do this, they will notice that
the machine runs smoother and that the penetration rates are higher
with a well maintained bit. Carbide buttons can be sharpened with
either portable or stationary grinding machines using grinding pins
(cups) or grinder wheels.
Grade List
| Shape &Code | Picture | Drawing | Size |
| D(mm) | H(mm) | h(mm) |
| Ballistic compact |  |  | 7.4-29.7 | 10.0-32.0 | 3.7-13.0 |
| Spherical compact |  |  | 4.4-28.6 | 6.0-38.0 | |
| Conical compact |  |  | 5.4-25.4 | 7.0-42.0 | |
| scoop compact |  |  | 8.3-32.6 | 13.0-52.0 | 4.7-22.5 |
| Ballistic Wedge compact |  |  | 8.0-30.5 | 10.0-40.0 | 3.5-16.3 |
| Ballistic Wedge compact |  |  | 18.4-25.4 | 30.0-42.0 | 11.7-18.0 |
| aerofoil compact |  |  | 10.0-22.8 | 15.0-35.0 | 4.8-9.2 |
| special head preform |  |  | 11.15-12.84 | 13.7-16.2 | 8.5-10.4 |
| special head preform |  |  | 11.15-14.35 | 13.5-10.7 | 7.5-19.7 |
| special head preform |  |  | 10.2 | 14.6 | 9.4 |
| special head preform |  |  | 18.0-24.0 | 10.0-35.0 | 22.0-30.0 |
| Grade | Co% | Density (g/cm²) | Hardness (HRA) | TRS (N/mm²) | Application |
| XD20A | 9.0 | 14.53-14.73 | 89.0-90.0 | ≥2400 | For making buttons for tri-cone drill bits with both high wear
resistance and toughness. |
| XD20A | 9.5 | 14.44-14.60 | 87.0-88.5 | ≥2400 | For making buttons for tri-cone drill bits with both high wear
resistance and toughness. |
| XKH20 | 10.0 | 14.45-14.60 | 87.5-89.5 | ≥2600 | For making gauge row buttons of various tri-cone drill bits. |
| XD20B | 10.0 | 14.43-14.63 | 88.8-89.5 | ≥2300 | For making buttons for tri-cone drill bits with both high wear
resistance and toughness. |
| XD30 | 10.0 | 14.43-14.63 | 88.1-89.1 | ≥2000 | For making buttons for tri-cone drill bits with both high wear
resistance and toughness. |
| XD40 | 10.0 | 14.10-14.60 | 87.2-88.2 | ≥2900 | Used in buttons for bits drilling in medium hard to soft rock
formations. |
| YG11C | 11.5 | 14.25-14.45 | 86.5-88.0 | ≥2400 | Coarse grade, used for inserts for bits drilling in medium hard to
hard rock formations. |
| XD45 | 12.0 | 14.23-14.43 | 86.8-87.7 | ≥2500 | Medium coarse grade, used for inserts for bits drilling in hard
rock formations. |
| YG13C | 13.0 | 14.15-14.35 | 85.5-87.0 | ≥2450 | Mainly used for making cemented carbide buttons for drilling medium
hard and hard rock formations. |
| XD50 | 14.8 | 13.95-14.10 | 85.2-86.1 | ≥2200 | Medium coarse grade, used for inserts for bits drilling in hard
rock formations. |
| XKH60 | 16.0 | 13.85-14.00 | 85.0-87.0 | ≥2700 | Used for buttons for inner rows in bits drilling in medium hard to
soft rock formations. |
| XD60 | 16.0 | 13.85-14.00 | 85.0-86.5 | ≥2500 | Used for buttons for inner rows in bits drilling in medium hard to
soft rock formations. |
Details For Spherical Rock Drill Bits
| Type | Dimensions (mm) | Angles |
| D | H | SR | θ° | α° | βº |
| Z0710H | 7.25 | 10.75 | 2.8 | 70 | 20 | 26.5 |
| Z0711 | 7.25 | 11 | 2.8 | 70 | 20 | 26.5 |
| Z0812 | 8.25 | 12.2 | 3 | 70 | 20 | 26.5 |
| Z0915A | 9.25 | 15 | 3 | 55 | 20 | 26.5 |
| Z1016 | 10.25 | 16.2 | 4 | 70 | 20 | 27.5 |
| Z1116 | 11.3 | 15.9 | 4 | 52 | 20 | 26.5 |
| Z1117 | 11.3 | 17 | 4 | 60 | 20 | 27.25 |
| Z1118 | 11.3 | 18 | 4 | 52 | 20 | 26.5 |
| Z1218A | 12.35 | 17.9 | 4.8 | 55 | 20 | 27.5 |
| Z1218B | 12.35 | 18 | 4 | 55 | 20 | 26.5 |
| Z1320B | 13.35 | 19.9 | 4 | 55 | 20 | 27 |
| Z1420A | 14.38 | 20 | 5 | 55 | 20 | 14.5 |
| Z1422A | 14.38 | 21.9 | 5 | 55 | 20 | 14.5 |
| Z1424 | 14 | 24 | 3 | 67 | 20 | 14.5 |
Product Application Scene
Production Process
FAQ
Q1: How can I place order?
A1: You can contact us by email about your order details, or place
order on line.
Q2: How can I pay you?
A2: After you confirm our PI, we will request you to pay. T/Tl,
Western Union are the most usual ways we are using.
Q3: What’s the order procedure?
A3: First we discuss order details, production details by email or
TM. Then we issue you an PI for your confirmation. You will be
requested to do pr -epaid full payment or deposit before we go into
production. After we get the deposit, we start to process the
order. We usually need 7-15 days if we don’t have the items in
stock. Before production has been finished, we will contact you for
shipment details, and the balance payment. After payment has been
settled, we start to prepare the shipment for you.
Q4: How do you take care when your clients received defective
products?
A4: replacement. If there are some defective items, we usually
credit to our customer or replace in next shipment.
Q5: How do you check all the goods in the production line?
A5: We have spot inspection and finished product inspection. We
check the goods when they go into next step production procedure.
