Mudhun bolongan dth sd misi 6 "pethel lan rega bit
Ing aplikasi liyane, kayata pengeboran pondasi, palu DTH bisa digunakake kanthi ukuran bolongan siji nganti .750 mm (30″).Kanthi pirang-pirang unit palu CD (Cluster drills) bolongan pengeboran nganti 70 ″ utawa 1778 mm.
Minangka aturan jempol, diameter bolongan paling cilik sing bisa dikebor palu DTH yaiku ukuran nominal.Palu 4 inci bakal ngebor bolongan 4 inci (102 mm).Faktor sing mbatesi yaiku diameter njaba palu, amarga, nalika diameter bolongan suda, aliran udara diwatesi.Ukuran bolongan maksimal kanggo pengeboran produksi yaiku ukuran palu nominal ditambah 1 inci, dadi kanggo palu 4 inci ukuran bolongan maksimal yaiku 5 inci (127–130 mm).
Milih palu tengen umume ditemtokake dening ukuran bolongan lan jinis tatanan rock.Saenipun, ukuran palu kudu cocog karo ukuran bolongan sing dibutuhake sabisane, mung ninggalake papan sing cukup kanggo potongan kanggo ngevakuasi bolongan kasebut.
Model | Sambungan Utas | OD (mm) | Ukuran Lubang Rec | Gaya Shank | Tekanan Kerja (Bar) |
CD35 | API 2 3/8" Reg | φ82 mm | φ90-φ105 | DHD3.5 CD35 | 1.0-1.5Mpa |
CD45 | API 2 3/8" Reg | φ99 mm | φ110-φ135 | Cop44 DHD340 CD45 | 1.0-2.5Mpa |
CSD4 | API 2 3/8" Reg | φ99 mm | φ110-φ135 | SD4 CSD4 | 1.0-2.5Mpa |
CQL40 | API 2 3/8" Reg | φ99 mm | φ110-φ135 | QL40 CQL40 | 1.0-2.5Mpa |
CD55 | API 2 3/8" Reg API 3 1/2" Reg | φ125 mm | φ135-φ155 | Cop54 DHD350R CD55 | 1.0-2.5Mpa |
CSD5 | API 3 1/2" Reg | φ125 mm | φ135-φ155 | SD5 CSD5 | 1.0-2.5Mpa |
CQL50 | API 3 1/2" Reg | φ125 mm | φ135-φ155 | Cop54 QL50 CQL50 | 1.0-2.5Mpa |
CD65 | API 3 1/2" Reg | φ148 mm | φ155-φ190 | Cop64 DHD360 CD65 | 1.0-2.5Mpa |
CSD6 | API 3 1/2" Reg | φ148 mm | φ155-φ190 | SD6 CSD6 | 1.0-2.5Mpa |
CQL60 | API 3 1/2" Reg | φ148 mm | φ155-φ190 | Cop64 QL60 CQL60 | 1.0-2.5Mpa |
CD85 | API 4 1/2" Reg | φ185 mm | φ195-φ254 | Cop84 DHD380 CD85 | 1.0-2.5Mpa |
CSD85 | API 4 1/2" Reg | φ185 mm | φ195-φ254 | SD8 CSD8 | 1.0-2.5Mpa |
CQL80 | API 4 1/2" Reg | φ185 mm | φ195-φ254 | QL80 CQL80 | 1.0-2.5Mpa |
CSD10 | API 4 1/2" Reg API 5 1/2" Reg API 6 5/8" Reg | φ225 mm | φ254-φ311 | SD 10 CSD10 | 1.0-2.5Mpa |
CN100 | API 6 5/8" Reg | φ225 mm | φ254-φ311 | NUMA100 CN100 | 1.0-2.5Mpa |
CSD12 | API 6 5/8" Reg | φ275 mm | φ305-φ445 | SD 12 CSD12 | 1.0-2.5Mpa |