The Cflow is a plastometer manufactured from Zwick Roell. It is developed as a stand alone device used for speedy monitoring of melt mass flow rate. It is mainly used for goods inwards checks at plastics procedure plants where extrusion tests are worked on a variable basis. The product features temperature control of the heating elements, heating chamber and barrel are all accurately co-ordinated. The temperature is produced where it is used, assuring accurate temperature distribution over the whole barrel height from the outset.