| Model Number | 3/3.5,4,5,6,8,10,12 inches | Certification | ISO CE |
| Drill Rock hardness | F=6-20 | Warranty | 1 Year |
| Condition | New | After-sales Service | 7X24hours available |
| Type | Rotary Drilling Rig | Color | As request |
| Processing Type | Forging | Button shape | Spherical, Ballistic, Semi-ballistic |
| Place of Origin | Beijing, China (Mainland) | Bit face shape | Flat, concave, convex, drop center |
| Brand Name | JCDRILL | Other shanks | COP,DHD,MISSION, SD |
| Usage | Rock drilling | Type | DTH Hammer |
| Material | Carbide | Machine Type | Drilling Tool |
Introduction
DTH Back Hammer BH140 BH170 BH190 BH240 for water well drilling, mining drilling, which help free DTH Hammer and drill pipes that have jammed in the drill hole. It is used widely in DTH air drilling .
The Back Hammer is a tool that can save and re- cover a drill string stuck in a hole, it can be easily fitted in a suitable tube joint between the drill support and the rotation head to provide an effective combination of backward hammering and vibration to loosen stuck drill strings.
DTH back hammers are used for dealing with the stuck drill, hit up to solve the stuck drill problem.
Main model: BH140 BH170 BH190 BH240
| Back Hammer | |||||
| Products | Pressure | Thread | Total Length(mm) | Diameter | KG |
| LBH140 | 8Bar | API 3 1/2" | 510 | 140 | 31 |
| LBH160 | 8Bar | API 3 1/2" | 540 | 160 | 44 |
| LBH190 | 8Bar | API 4 1/2" | 580 | 190 | 63 |
| LBH240 | 8Bar | API 4 1/2" | 600 | 240 | 85 |
| DTH Hammer | ||
| Type | Model | Outer Diameter |
| High pressure DTH Hammer | ||
| 3 inch | JD25A | 71mm |
| 3.5 inch | JD35A/M30 | 82mm |
| 4 inch | JD45A/QL40A/M40/SD4 | 99mm |
| 5 inch | JD55A/QL50A/M50/SD5 | 125mm |
| 6 inch | JD65A/QL60A/M60/SD6 | 142mm |
| 8 inch | JD85A/QL80A/M80/SD8 | 180mm |
| 10 inch | HD100A/SD10 | 225mm |
| 12 inch | JD125A/SD12 | 275mm |
| 14 inch | JD140A | - |
| Middel Pressure DTH Hammer | ||
| 2.5 inch | BR1 | 56mm |
| 3 inch | BR2 | 64mm |
| 3.5 inch | BR3 | 82mm |
| Lower Pressure DTH Hammer | ||
| 3 inch | CIR65 | 68mm |
| 3.5 inch | CIR70 | 76mm |
| 4 inch | CIR90 | 99mm |
| 5 inch | CIR110 | 110mm |
| 6 inch | CIR150 | 150mm |
| 8 inch | CIR170 | 170mm |
| Back Hammer | ||
| 6 inch | BH140 | 155mm |
| 8 inch | BH170 | 190mm |
| 10 inch | BH190 | 220mm |
| 12 inch | BH240 | 190mm |
Picture
| Minimum Order Quantity | N/A |
| Price | |
| Packaging Details | Standard Export Delivery Package |
| Delivery Time | 7days |
| Payment Terms | T/T |
| Supply Ability | Based on Detailed Order |
