Portable trolley mounted stainless steel variable speed (inverter) rotary pumps with flexible impeller; particularly suitable for transfer of delicate, fragile and viscous fluids, also with solid parts in suspension. Pumps can be also remotely controlled. Our pumps are widely used in the OENOLOGICAL field (wine, must, must and stemmed grapes), in FOOD processing (beer, fruit pulp and juice, honey, liquid sugar, syrups, glucose, milk, melted butter, yoghurt, liquid eggs, oil, tomatoes pulp and juice , brine, etc.), in CHEMICAL INDUSTRY(starch, water based glues, emulsions, glycerine, wax, detergents, rubber latex, photographic processing liquids, polyelectrolyte, paints, ink, industrial discharges, etc.), in COSMETIC and PHARMACEUTICAL production (liquid soap, cleaning lotion, cream, shampoo, etc.).