Rotary Speed: 10-180 r/min. Rotary Motor Power: 30 Watts. Alcohol Evaporating Speed: 20 mL/min. Temperature Range: 99 – 199 °C. Water Bath Boiler Power : 1.5 kW. Elevating Stroke : 100-150 mm. Vacuum Sealing: Double sealing rings made of Teflon/Teflon and Teflon/Viton materials. Achievable Vacuum: 399.9 Pa.