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.


18” DTH Hammer
SWH410N, SWH410S

| 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 | |
| SWH410N | SWH410S | 
|---|---|
| SD18 | |
| N180 | |
| 460~660 | 460~660 | 
| 410 | 410 | 
| 310 | 310 | 
| 150 | 150 | 
| 273 | 273 | 
| 1993 | 2040 | 
| 1832 | 1861 | 
| API 7 5/8 Reg.Pin | API 7 5/8 Reg.Pin | 
| 1420(40.1) | 1420(40.1) | 
| 2140(60.5) | 2140(60.5) | 
| 3000(85) | 3000(85) | 
| 3920(110.9) | 3920(110.9) | 
| 4534(128.3) | 4930(139.5) | 
| 4930(139.5) | 5510(155.9) |