Tha an Roller Reamer air a dhealbhadh airson diofar obrachadh reaming ach gu sònraichte airson adhbharan seasmhachd nuair a bhios e a’ drileadh ann an cumaidhean fìor sgrìobach. Bidh e a’ freagairt air meudan tuill bho 4 5/8 gu 26inch.
Tha trì seòrsaichean eadar-dhealaichte (T, F agus B) de luchd-gearraidh air an tabhann:
Seòrsa T: Air a bleith, air a innealachadh le fiaclan biorach cruaidh airson cumaidhean bog.
Seòrsa F: Air a bleith, air a innealachadh le fiaclan còmhnard le aghaidh cruaidh, airson cumaidhean cruaidh meadhanach.
Seòrsa B: Uidheamaichte le putanan carbide tungsten air am brùthadh a-steach, airson cumaidhean cruaidh.
Meud toll (òirleach/mm) | Ceangal. API | Amhach OD (òirleach/mm) | Trast-thomhas gearraidh (òirleach / mm) | Fad gearraidh (òirleach/mm) | Fad iomlan (òirleach/mm) |
28" (711.2) | 7 5/8 REG | 9 1/2" (241.3) | 7" (178) | 15 3/4" (400) | 112 7/8" (2867) |
26" (660.4) | 7 5/8 REG | 9 1/2" (241.3) | 7" (178) | 15 3/4" (400) | 118 7/64" (3000) |
24" (609.6) | 7 5/8 REG | 9 1/2" (241.3) | 6 7/32" (158) | 15 3/4" (400) | 110 15/64" (2800) |
22" (558.8) | 7 5/8 REG | 9 1/2" (241.3) | 6 7/32" (158) | 15 3/4" (400) | 105" (2667) |
17 1/2" (444.5) | 7 5/8 REG | 9" (229) | 5 1/2" (140) | 12" (304) | 88 39/64" (2200) |
12 1/4" (331.2) | 6 5/8 REG | 8" (203) | 3 15/16" (100) | 11 13/16" (300) | 74 13/16" (1900) |
8 1/2" (215.9) | NC50 (4 1/2 REG) | 6 1/2" (165) | 2 13/16" (71) | 7 7/8" (200) | 68 7/64" (1730) |
6" (152.4) | NC38 (3 1/2 REG) | 4 3/4" (121) | 2" (50.6) | 7 7/8" (200) | 55 1/8" (1400) |
5 7/8" (149.2) | NC38 (3 1/2 REG) | 4 3/4" (121) | 1 13/16" (46.2) | 7 7/8" (200) | 55 1/8" (1400) |