The Büchi RotaVapor® R-210 is ideal for routine distillation with analog control of rotation speed. Designed for basic distillation needs. Inexpensive, yet fully equipped. For 50 ml to 4,000 ml flasks. Choose from seven glass assemblies (A, V, C, S, E, BR or CR). Listed glassware assemblies have ST 24/40 joints but are also available with ST 29/42 joints, upon request. Two optional digital heating baths (20°C to 180°C) are available (see E1420B). Motorized Quick-action Jack easily raises and lowers glassware. Simply pressing a button activates the Quick-action Jack. Optional Vacuum Controllers communicate with the RotoVapor® and allow rotation to be started/stopped and glassware to be raised/lowered automatically (see E1420A). The sealing system is made of PTFE and glass, which lasts significantly longer than previous vacuum seals. These models are also available with an optional plastic coating on all glass parts except the evaporating flask. All options can be priced at time of request. There are a variety of packages available that pair baths and controllers, as well as other accessories, to this model. Please inquire. Specifications: Rotation Speed: 20 - 280 rpm, Temperature Range: 20° to 180° C, Accuracy: ±1°, Bath Size: 4 Lt, Weight (with bath): 48 Lbs, Weight (w/o bath): 40 Lbs.