En
Down-the-hole (DTH) hammers are precision-engineered pneumatic tools designed for deficient rock drilling in mining, construction, and geotechnical applications. These hammers operate by forcing compressed air down the drill string to the hammer, where it energizes a piston delivering powerful blows to the drill bit, facilitating fast and effective penetration into hard rock formations.
The JH DTH hammer with foot valve is a new high pressure hammer developed by our company.
Features
◆High impact frequency ensures smooth operation.
◆Parts made from high quality special steel with hardened surfaces for better durability.
◆Simple structure ensures reliability, easy disassembly, and convenient maintenance.
| Hammer mode | Dth bit shank | Foot valve | Thread connection | Hammer OD(mm) | Rec.hole size(mm) | Length without bit(mm) | Piston (kg) | Hammer weight(kg) | Working pressure(bar) |
| JH3.5D | DHD3.5 | Yes | API23/8"REGpin | 80 | 90-105 | 863 | 4.1 | 23 | 14-20 |
| 4"Hammer | |||||||||
| JH4H | DHD340 | Yes | API23/8"REGpin | 99 | 105-130 | 952 | 9.4 | 38 | 16-25 |
| JH4S | SD4 | Yes | API238"REGpin | 99 | 105-130 | 998 | 9.4 | 38.8 | 16-25 |
| JH4X | QLX40 | Yes | API23/8"REGpin | 99 | 105-130 | 950 | 9.4 | 37 | 16-25 |
| JH5H | DHD350 | Yes | API238"or API312" | 126 | 140-152 | 1070 | 15.5 | 68.5 | 16-28 |
| JH5S | SD5 | Yes | API23/8"or APl312" | 126 | 140-152 | 1070 | 15.5 | 69.4 | 16-28 |
| JH5L | QL50 | Yes | API23/8"or APl31/2" | 126 | 140-152 | 1069 | 15.5 | 69 | 16-28 |
| JH6H | DHD360 | Yes | API312"REGpin | 148 | 155-190 | 1163 | 25.4 | 101.5 | 16-30 |
| JH6S | SD6 | Yes | API31/2"REGpin | 148 | 155-190 | 1180 | 25.4 | 99 | 16-30 |
| JH6L | QL60 | Yes | API312"REGpin | 148 | 155-190 | 1109 | 25.4 | 98 | 16-30 |
| JH8H | DHD380 | Yes | API412"REGpin | 185 | 203-245 | 1305 | 42 | 173 | 16-30 |
| JH8S | SD8 | Yes | API41/2"REGpin | 185 | 203-245 | 1273 | 42 | 173 | 16-30 |
| JH8L | QL80 | Yes | API412"REGpin | 185 | 203-245 | 1285 | 42 | 180 | 16-30 |
| JH10N | Numa100 | Yes | API51/2"or API65/8" | 225 | 245-305 | 1522 | 73 | 302 | 16-35 |
| JH10S | SD10 | Yes | API512"orAPI65/8" | 225 | 245-305 | 1503 | 73 | 295 | 16-35 |
Notice: There is a chance that SHANDIKE may make changes on above-mentioned information. Product pictures and parameters about models, data, performances and specifications on this website are for reference only.
