Mincon 4HR Hammer
The Mincon 4HR 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.
SpecificationsMetricImperialHammer Outside Diameter97mm3.82"Hammer Length (Less Bit, Backhead Shoulder to Chuck)956mm37.6"Backhead Spanner Flat Size64mm2.5”Drill Bit Shank TypeDHD340AMinimum Bit Size110mm4.33"Hammer Weight (Less Bit)38.6Kgs85LbsDrill Bit Weight (120mm/4 3/4")10.9Kgs24LbsPiston Weight7.7Kgs17LbsBackhead Stand Off0.75mm0.030”Make up Torque4050-5425 NM3000-4000 FT LbsWear Sleeve Reverse LimitNon ReversibleWear Sleeve Discard Limit87mm3.425”Recommended Minimum Air Package118 l/s @ 10.3 Bar250 cfm @ 150 psi
| Item # | Part Number | Description |
| MD401AS05 | Mincon 4HR(2 3/8" A.P.I. Reg. Pin) | |
| 1 | MD401BH03 | Backhead (2 3/8" A.P.I. Reg. Pin) |
| 2 | MD424OR01 | O Ring |
| 3 | MB506CH01 | Choke Blank |
| 4 | MB502CV01 | Check Valve |
| 5 | MB503SP01 | Spring |
| 6 | MD404SM01 | Steel Make-Up Ring |
| 7 | MD405LR01 | Lock Ring |
| 8 | MD407DR03 | Air Distributor |
| 9 | MD421OR01 | O Ring |
| 10 | MD422OR01 | O Ring |
| 11 | MD409SR01 | Seating Ring |
| 12 | MD408IC02 | Inner Cylinder |
| 13 | MD410PN03 | Piston |
| 14 | MD411WS04 | Wear Sleeve |
| 15 | MD412PR01 | Piston Retaining Ring |
| 16 | MD416BS01 | Bit Retaining Spacer |
| 17 | MD413BR06 | Bit Retaining Ring |
| 18 | MD420OR01 | O Ring |
| 19 | MD414CK03 | Chuck (DHD340A) |
| 20 | MD426SK01 | Service Kit |
| MD426SK01 | Service Kit | |
| 3 | MB506CH01 | Choke Blank |
| MB506CH02 | Choke 1/8” (3.2mm) | |
| MB506CH03 | Choke 3/16” (4.8mm) | |
| 5 | MB503SP01 | Spring |
| MD425OK01 | O Ring Kit | |
| MD425OK01 | O Ring Kit | |
| 2 | MD424OR01 | O Ring |
| 9 | MD421OR01 | O Ring |
| 10 | MD422OR01 | O Ring |
| 18 | MD420OR01 | O Ring |