Mincon 8DH Hammer
The Mincon 8DH hammer is designed around proven technology to perform at the top end of the performance scale compared to other tools on the market. These tools are excellent for all types of drilling applications including residential geothermal, production quarry drilling, seismic drilling and small construction drilling.
Key Features and Benefits
Key Features and Benefits
- Patented features maximize energy output and reduce service requirements.
- Fewer internal components minimize service requirements.
- Valveless, high frequency design ensures smooth operation.
- Hardened wear sleeve for optimum wear resistance even in the most abrasive conditions.
- Multi-start threads on backhead and chuck ensure easy coupling/uncoupling of hammer.
- Unique internal mount system eliminates the need for wear shims and special assembly tools.
- All critical internal components are heat treated under strict control to maximize tool longevity.
| Specifications | Metric | Imperial |
| Hammer Outside Diameter | 181mm | 7.15" |
| Hammer Length (Less Bit, Backhead Shoulder to Chuck) | 1186mm | 46.7" |
| Backhead Spanner Flat Size | 140mm | 5.5” |
| Drill Bit Shank Type | DHD380 | |
| Minimum Bit Size | 203mm | 8.0" |
| Hammer Weight (Less Bit) | 173.2Kgs | 381Lbs |
| Drill Bit Weight (216mm/8 1/2”) | 52.2Kgs | 115Lbs |
| Piston Weight | 39Kgs | 86Lbs |
| Backhead Stand Off | 0.75mm | 0.030” |
| Make up Torque | 8135-10850 NM | 6000-8000 FT Lbs |
| Wear Sleeve Reverse Limit | 172mm | 6.770" |
| Wear Sleeve Discard Limit | 169mm | 6.650” |
| Recommended Minimum Air Package | 425 l/s @ 24.1 Bar | 900 cfm @ 350 psi |
| Item # | Part Number | Description |
| MD801AS01 | Mincon 8DH (4 1/2" A.P.I. Reg. Pin) | |
| 1 | MD801BH01 | Backhead (4 1/2" A.P.I. Reg. Pin) |
| 2 | MD822OR01 | O Ring |
| 3 | MB506CH01 | Choke Blank |
| 4 | MD802CV01 | Check Valve |
| 5 | MB503SP01 | Spring |
| 6 | MD805LR01 | Lock Ring |
| 7 | MD804SM01 | Steel Make-Up Ring |
| 8 | MD807DR01 | Air Distributor |
| 9 | MD821OR01 | O Ring |
| 10 | MD820OR01 | O Ring |
| 11 | MD809SR01 | Seating Ring |
| 12 | MD808IC01 | Inner Cylinder |
| 13 | MD810PN01 | Piston |
| 14 | MD811WS01 | Wear Sleeve |
| 15 | MD812PR01 | Piston Retaining Ring |
| 16 | MD814BR01 | Bit Retaining Ring |
| 17 | MD821OR01 | O Ring |
| 18 | MD815CK01 | Chuck (DHD380) |
| 19 | MD826SK01 | Service Kit |
| MD826SK01 | Service Kit | |
| 3 | MB506CH01 | Choke Blank |
| MB506CH02 | Choke 1/8” (3.2mm) | |
| MB506CH03 | Choke 3/16” (4.8mm) | |
| 5 | MB503SP01 | Spring |
| MD825OK01 | O Ring Kit | |
| MD825OK01 | O Ring Kit | |
| 2 | MD822OR01 | O Ring |
| 9 | MD821OR01 | O Ring |
| 10 | MD820OR01 | O Ring |
| 17 | MD821OR01 | O Ring |