Middle-Low Air Pressure DTH Hammers
BRIA,BR2A ndiBR3Mitundu yambiri ya DTH Hammers idapangidwa kuti izigwira ntchito bwino pamayendedwe otsika a mpweya komanso kupanikizika kwapakatikati, pogwiritsa ntchito ma bits a BR.
Zomwe zili zazikulu ndi izi:
1. Kuthamanga kwa mpweya wogwiritsira ntchito kuli pakati pa 0.7Mpa ndi 1.75Mpa.
2. Nyundo zopanda ma valve.
3. Mapangidwe osavuta, osavuta kusonkhanitsa ndi kusokoneza, moyo wautali.
4. Kukhudzika kwakukulu pafupipafupi komanso kuthamanga kwambiri pobowola.
5. kuchepa kwa mpweya komanso kuchepetsa mafuta.Bowo likhoza kubowoledwa pa valavu ya cheki kuti mupereke kutulutsa koyenera kodula.
6. Oyenera makamaka kukumba miyala.
| BR1-DTH Nyundo | |||||
 | |||||
| Ref. | Zigawo | Kulemera | Ref. | Zigawo | Kulemera |
| 1 | Sub | 1.92 kg | 9 | Chikwama Chotsogozedwa | 0.29 kg |
| 2 | "O" mphete | 0.01 Kg | 10 | Onani mphete | 0.1 kg |
| 3 | Onani Vavu | 0.08kg ku | 11 | Retainer Ring | 0.08kg ku |
| 4 | Kasupe | 0.01 Kg | 12 | "O" mphete | 0.01 Kg |
| 5 | Wogawa mpweya | 0.46 kg | 13 | Thamangani Chuck | 0.82 kg |
| 6 | Silinda Yamkati | 0.38 kg | 14 | Drill Bit | |
| 7 | Piston | 1.16 kg | |||
| 8 | Silinda Yakunja | 3.46kg | |||
| Zosintha zaukadaulo | |||||
| Utali (Popanda Pang'ono) | Kulemera | Dipo lakunja | Ulusi Wogwirizana | Bit Shank | Hole Range |
| 698 mfm | 8.8Kg | Φ56 mm | Chithunzi cha RD40 | BR1 | Φ76-Φ90mm |
| Kupanikizika kwa ntchito | Liwiro lozungulira lovomerezeka | Kugwiritsa Ntchito Mpweya | |||
| 1.0Mpa | 1.4Mpa | ||||
| 0.8-1.5Mpa | 30-50 r/mphindi | 2m³/mphindi | 3m³/mphindi | ||
| BR2-DTH Nyundo | |||||
 | |||||
| Ref. | Zigawo | Kulemera | Ref. | Zigawo | Kulemera |
| 1 | Sub | 2.5Kg | 9 | Chikwama Chotsogozedwa | 0.52 Kg |
| 2 | "O" mphete | 0.01 Kg | 10 | Retainer Ring | 0.1 Kg |
| 3 | Onani Vavu | 0.08 Kg | 11 | "O" mphete | 0.01 Kg |
| 4 | Kasupe | 0.05 Kg | 12 | Thamangani Chuck | 1.2 Kg |
| 5 | Mpando wa Valve | 0.5Kg | 13 | Drill Bit | |
| 6 | Silinda Yamkati | 0.6 Kg | |||
| 7 | Piston | 2.3 Kg | |||
| 8 | Mlandu wa Piston | 4.5Kg | |||
| Magawo aukadaulo a BR2 | |||||
| Utali (Popanda Pang'ono) | Kulemera | Dipo lakunja | Ulusi Wogwirizana | Bit Shank | Hole Range |
| 810 mm | 12.5Kg | Φ64 mm | Chithunzi cha RD50 | BR2 | Φ70-Φ90mm |
| Kupanikizika kwa ntchito | Liwiro lozungulira lovomerezeka | Kugwiritsa Ntchito Mpweya | |||
| 1.0Mpa | 1.4Mpa | ||||
| 0.8-1.5Mpa | 30-50 r/mphindi | 3m³/mphindi | 4.5m³/mphindi | ||
| BR3-DTH Nyundo | |||||
 | |||||
| Ref. | Zigawo | Kulemera | Ref. | Zigawo | Kulemera |
| 1 | Sub | 4.4Kg | 9 | Chikwama Chotsogozedwa | 0.9Kg |
| 2 | "O" mphete | 0.01 Kg | 10 | Onani mphete | 0.15 Kg |
| 3 | Onani Vavu | 0.13 Kg | 11 | Retainer Ring | 0.25Kg |
| 4 | Kasupe | 0.02 Kg | 12 | "O" mphete | 0.01 Kg |
| 5 | Mpando wa Valve | 0.76 Kg | 13 | Thamangani Chuck | 2 kg |
| 6 | Silinda Yamkati | 1.45Kg | 14 | Drill Bit | |
| 7 | Piston | 4.7Kg | |||
| 8 | Mlandu wa Piston | 6 kg | |||
| BR3 Technical magawo | |||||
| Utali (Popanda Pang'ono) | Kulemera | Dipo lakunja | Ulusi Wogwirizana | Bit Shank | Hole Range |
| 871 mbm | 21Kg | Φ82 mm | API2 3/8″REG | BR3 | Φ90-Φ115mm |
| Kupanikizika kwa ntchito | Liwiro lozungulira lovomerezeka | Kugwiritsa Ntchito Mpweya | |||
| 1.0Mpa | 1.5Mpa | ||||
| 1.0-1.7Mpa | 30-50 r/mphindi | 4m³/mphindi | 7m³/mphindi | ||
