We, SUNGWON Heavy Machinery, have been manufacturing and supplying rock,
soil drilling equipment and tools of DTH Hammers, Hammer Bits and Auger
Machines in Korea.


28” DTH Hammer
SWH640L

| Hammer Model | |
|---|---|
| Bit Shank Type | SUNGWON |
| Atlas | |
| Sandvik | |
| Numa | |
| Bit Dia. | mm |
| Hammer Dia. | mm |
| Cylinder Bore | mm |
| Piston Stroke | mm |
| Piston Weight | Kgs |
| Length(Less Bit) | mm |
| Weight(Less Bit) | Kgs |
| Connection Type | |
| Air Consumption CFM(m3/min) |
100 psi 7.0 Kg/cm2 |
| 150 psi 10.5 Kg/cm2 | |
| 200 psi 14.0 Kg/cm2 | |
| 250 psi 17.6 Kg/cm2 | |
| 300 psi 21.0 Kg/cm2 | |
| 350 psi 24.1 Kg/cm2 | |
| SWH640L |
|---|
| SWH640 |
| 700~1175 |
| 635 |
| 475 |
| 150 |
| 732 |
| 2025 |
| 3820 |
| Hexagonal Joint |
| 2300(65) |
| 3400(96.2) |
| 4800(135.8) |
| 5635(159.4) |
| 6829(193.2) |
| 7845(222) |