SPECIFICATION
| Specification / Model | Unit | JSB20N | JSB30N | JSB40N | JSB50N | JSB70N |
| Working weight | kg | 1,750 | 2,300 | 3,200 | 3,900 | 5,500 |
| Impact rate(Shot/Long) | bpm | 370~550 | 370~560 | 370~540 | 480~670/370~520 | 410~570/320~430 |
| Operating pressure | bar | 160~180 | 160~180 | 160~180 | 160~180 | 160~180 |
| Pressure relief max. | bar | 200 | 200 | 210 | 210 | 210 |
| Required oil flow | l/min | 120~180 | 160~230 | 180~270 | 230~350 | 280~380 |
| Back pressure max | bar | 5~10 | 5~10 | 5~10 | 5~10 | 5~10 |
| Chisel diameter | mm | 135 | 150 | 160 | 170 | 190 |
| Max. allowed oil temperature | ℃ | -20~+80(℃) | -20+80(℃) | -20+80(℃) | -20+80(℃) | -20+80(℃) |
| Optimum oil temperature | ℃ | +40~+60(℃) | +40~+60(℃) | +40~+60(℃) | +40~+60(℃) | +40~+60(℃) |
| Oil viscosity at perating temp. | cst | 30~60(cSt) | 30~60(cSt) | 30~60(cSt) | 30~60(cSt) | 30~60(cSt) |
| Carrier weight | ton | 20~30 | 25~35 | 35~45 | 45~55 | 55~80 |
*Specifications and features are subject to change without prior notification to better improvement in quality.
