89mm kubowola chitoliro pobowola madzi chitsime ndi API IF ulusi
Chitoliro chobowola chamadzi ichi, mawonekedwe ofupikitsa a chitoliro chobowola dzenje, ndi mtundu wa ndodo yakunja yobowola.Amagwiritsidwa ntchito kwambiri pobowola rotary percussive yomwe imakhala ndi mpweya ndi zakumwa.Zigawo zake zazikulu ndi chitoliro (ndodo) thupi ndi olowa.
Chitoliro chathu chobowola pansi chimapangidwa motengera miyezo ya API.Ndipo malinga ndi zofunikira zenizeni, timaperekanso mtundu uwu wa DTH kubowola chitoliro muzinthu zosiyanasiyana zaku China ndi America.
Ponena za ubwino wake, ili ndi mawonekedwe olimba kwambiri, mphamvu yosindikiza bwino, mawonekedwe akunja akunja, ndi torque yochepa ndi kukana pamene ikuzungulira.
Ponena za kulongedza, mtolo wa mapaipi obowola a DTH adzadzazidwa ndi seti imodzi yachitsulo, ndipo mtolo udzakhala ndi mapaipi 30 mpaka 40 obowola.
Magawo Aukadaulo a DTH Drill Pipe (Ndodo Yakunja Yobowoleza):
| Diameter | Utali | Ma Wrench Flats | Ulusi |
| 50-194 mm | 500-10700 mm | 40,57,65,75,83,95 mm pa | F42 × 10 F48 × 10 2 3/8''API REG |
| 2 7/8''API REG 3 1/2''API REG 2 3/8''API IF | |||
| 3 1/2 "BECO 4 "BECO 4 1/2 "BECO | |||
| 5 1/4 "BECO |
