Ko te hama keri puna wai te nuinga e whakamahia ana i roto i te keri, te keri, te hanga huarahi me etahi atu miihini keri poka pupuhi, te whakamarumaru whenua, te whakakaha i te waahi papuni, te punga me etahi atu kohao miihini, te whakamaarama wai, nga rua puna wai me etahi atu mara.
1. Karekau e hiahiatia he ngongo nylon te bit drill, na reira ka whakakorea te raru o nga ngongo nylon kua pakaru, kua pakaru me te uaua na te toronga wera me te whakaheke.
2. Ko te hama DTH kaore he ngongo nylon he iti te kohi hiko, he nui te paanga o te paanga, a ko te tere keri he 15% -30% tere atu i te momo hama DTH me te ngongo nylon.
3. No te mea he tino ngawari te hanganga me te pono o nga waahanga, he ngawari te pupuri i te hama DTH me te roa o te mahi.
| Tawhā Hangarau | |||||
| Tauira | CIR50 | ||||
| Roa(Motiiti iti) | Taumaha (Motiiti iti) | Te diameter o waho | Bit Shank | Awhe Kohao | Miro Hononga |
| 628mm | 5.5kg | φ46mm | CIR50 | φ50-60 | F32X8PIN |
| Te pehanga Mahi | Paanga 0.63Mpa | Tūtohu tere edrotation | Kohi hau | ||
| 0.5Mpa | 0.63Mpa | 1.0Mpa | |||
| 0.5-1.0Mpa | 16.6Hz | 40-55r"'/min | 50L"'/s | 60L"'/s | 75L"'/s |
| Tauira | D56 | ||||
| Roa(Motiiti iti) | Taumaha (Motiiti iti) | Te diameter o waho | Bit Shank | Awhe Kohao | Miro Hononga |
| 668mm | 5.8kg | φ46mm | 56 | φ50-60 | F32X8PIN |
| Te pehanga Mahi | Paanga 0.63Mpa | Tūtohu tere edrotation | Kohi hau | ||
| 0.5Mpa | 0.63Mpa | 1.0Mpa | |||
| 0.5-1.0Mpa | 16.6Hz | 40-55r"'/min | 50L"'/s | 60L"'/s | 75L"'/s |
| Tauira | CIR76A | ||||
| Roa(Motiiti iti) | Taumaha (Motiiti iti) | Te diameter o waho | Bit Shank | Awhe Kohao | Miro Hononga |
| 772mm | 14.7kg | φ68mm | CIR76 | φ76-80 | F48X10PIN |
| Te pehanga Mahi | Paanga 0.63Mpa | Tūtohu tere edrotation | Kohi hau | ||
| 0.5Mpa | 0.63Mpa | 1.0Mpa | |||
| 0.5-1.0Mpa | 16.6Hz | 30-80r"'/min | 55L"'/s | 65L"'/s | 80L"'/s |
| Tauira | CIR90A | ||||
| Roa(Motiiti iti) | Taumaha (Motiiti iti) | Te diameter o waho | Bit Shank | Awhe Kohao | Miro Hononga |
| 796mm | 20.3kg | φ80mm | CIR90 | φ90-130 | F48X10PIN |
| Te pehanga Mahi | Paanga 0.63Mpa | Tūtohu tere edrotation | Kohi hau | ||
| 0.5Mpa | 0.63Mpa | 1.0Mpa | |||
| 0.5-1.0Mpa | 16.6Hz | 30-80r"'/min | 75L"'/s | 95L"'/s | 110L"'/s |
| Tauira | CIR90B | ||||
| Roa(Motiiti iti) | Taumaha (Motiiti iti) | Te diameter o waho | Bit Shank | Awhe Kohao | Miro Hononga |
| 782mm | 19.7kg | φ80mm | CIR90 | φ90-130 | F48X10PIN |
| Te pehanga Mahi | Paanga 0.63Mpa | Tūtohu tere edrotation | Kohi hau | ||
| 0.5Mpa | 0.63Mpa | 1.0Mpa | |||
| 0.5-1.0Mpa | 16.5Hz | 30-80r"'/min | 85L"'/s | 105L"'/s | 120L"'/s |
| Tauira | CIR110A | ||||
| Roa(Motiiti iti) | Taumaha (Motiiti iti) | Te diameter o waho | Bit Shank | Awhe Kohao | Miro Hononga |
| 838mm | 35.86kg | φ101mm | CIR110 | φ110-135 | API23"'/8Reg |
| Pouaka | |||||
| Te pehanga Mahi | Paanga 0.63Mpa | Tūtohu tere edrotation | Kohi hau | ||
| 0.5Mpa | 0.63Mpa | 1.0Mpa | |||
| 0.5-1.0Mpa | 16.2Hz | 25-50r"'/min | 100L"'/s | 130L"'/s | 155L"'/s |
| Tauira | CIR150A | ||||
| Roa(Motiiti iti) | Taumaha (Motiiti iti) | Te diameter o waho | Bit Shank | Awhe Kohao | Miro Hononga |
| 901mm | 68.6kg | φ137mm | CIR150 | φ155-178 | F75*10 Pouaka |
| Te pehanga Mahi | Paanga 0.63Mpa | Tūtohu tere edrotation | Kohi hau | ||
| 0.5Mpa | 0.63Mpa | 1.0Mpa | |||
| 0.5-1.0Mpa | 16Hz | 20-40r"'/min | 220L"'/s | 255L"'/s | 300L"'/s |
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