The manufacturing principle is same as that of ordinary PDC. Spherical insert , conical insert , wedge insert , eccentric wedge insert , flat insert are available.But the shape of diamond layer is different for different application.
1. Spherical insert
Mainly for roller bit for petroleum drilling, can also for small and medium-sized button bit, DTH bit. With good wear ability and better impact toughness, it can be for percussion drilling.
Parameter table
|
Size |
Diameter(mm) |
Height(mm) |
Radius of sphere top(mm) |
|
ZMS1117 |
11.2 |
17 |
6.2 |
|
ZMS1218 |
12.2 |
18 |
6.8 |
|
ZMS1318 |
13.2 |
19 |
7.2 |
|
ZMS1624 |
16 |
24 |
10 |
2. Conical insert
Mainly used for gage protection or as main cutting teeth of roller bit for petroleum drilling. Can also for DTH bit requiring high efficiency.
Parameter table
|
Size |
Diameter(mm) |
Height(mm) |
Height of column(mm) |
|
ZMC1016 |
10.2 |
16.5 |
9 |
|
ZMC1118 |
11.2 |
18.5 |
10 |
|
ZMC1217 |
12.2 |
17 |
8 |
|
ZMC1318 |
13.2 |
18 |
8.5 |
|
ZMC1419 |
14 |
19 |
12 |
|
ZMC2428 |
24 |
28 |
16 |
3. Wedge insert
Mainly used for gage protection or as main cutting teeth of roller bit for petroleum drilling.
Parameter table
|
Size |
Diameter(mm) |
Height(mm) |
Height of column(mm) |
|
ZMW1016 |
10.2 |
16.5 |
9 |
|
ZMW1118 |
11.2 |
18.5 |
10 |
|
ZMW1217 |
12.2 |
17 |
8 |
|
ZMW1219 |
12 |
19 |
11 |
|
ZMW1318 |
13.2 |
18 |
8.5 |
4. Eccentric wedge insert
Mainly used for gage protection or as main cutting teeth of roller bit for petroleum drilling.
Parameter table
|
Size |
Diameter(mm) |
Height(mm) |
Height of column(mm) |
|
ZME1016 |
10.2 |
16.5 |
9 |
|
ZME1118 |
11.2 |
18.5 |
10 |
|
ZME1217 |
12.2 |
17 |
8 |
|
ZME1219 |
12 |
19 |
11 |
|
ZME1318 |
13.2 |
18 |
8.5 |