For Measuring Swelling Index of Coal
| Working range of sample heating | 200°C to 600°C |
| Setting of temperature alarm | 500 - 600°C |
| Accuracy of temperature control | ± 1°C / 10 min |
| Measurement of pistons' shifts | Contactless |
| Retort Pipe Movement | Fully automated |
| Temperature gradient | 3°C /min |
| Dilatation measurement range | 50 to + 400 % (standard samples) |
| Power supply | 230 V, 50 Hz |
| Dimensions | 700 x 250 x 900 mm (with tubes up 1450 mm) |
