Extra Roller Cone Rock Reamer

Extra roller cone rock reamer is our new type hole opener. Extra bigger cone size and metal seal offer good ability and longer life of bearing; and sharp-cut teeth offer good efficiency. 28-80 inch rock reamer can be obtained.

(1) Available in sizes from 220mm to1600mm. Any sizes available upon request.
(2) 4Hdd can provide 220-1600mm HDD rock reamer with roller cones.
(3) The roller con reamer fit for all sorts of rock formation.
(4) The cone bearing is desined with metal seal and with IADC217-737 tooth type.
No. REAMER SIZE SHAFT SIZE THREAD TYPE TYPE OF EXTRA CONE NUM OF CONES
1 28″ 203 620-621 ZW-TCI OR MT 4
2 30″ 203 620-621 ZW-TCI OR MT 4/5
3 32″ 203 620-621 ZW-TCI OR MT 5
4 34″ 203 620-621 ZW-TCI OR MT 5
5 36″ 228 620-621 ZW-TCI OR MT 5
6 38″ 228 620-621 ZW-TCI OR MT 5
7 40″ 228 620-621 ZW-TCI OR MT 5
8 42″ 228 620-621 ZW-TCI OR MT 6
9 44″ 228 620-621 ZW-TCI OR MT 6
10 46″ 228 620-621 ZW-TCI OR MT 6
11 48″ 228 620-621 ZW-TCI OR MT 6
12 50″ 228 620-621 ZW-TCI OR MT 6
13 52″ 228 620-621 ZW-TCI OR MT 7
14 54″ 228 620-621 ZW-TCI OR MT 7
15 56″ 228 620-621 ZW-TCI OR MT 7
16 58″ 228 620-621 ZW-TCI OR MT 7
17 60″ 228 620-621 ZW-TCI OR MT 7
18 62″ 228 620-621 ZW-TCI OR MT 8
19 64″ 228 620-621 ZW-TCI OR MT 8
20 66″ 241 620-621 ZW-TCI OR MT 8
21 68″ 241 620-621 ZW-TCI OR MT 9
22 70″ 241 620-621 ZW-TCI OR MT 9
23 72″ 241 620-621 ZW-TCI OR MT 9
24 72″ 241 620-621 ZW-TCI OR MT 9
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