The heat exchanger is formed by a tube bundle inside a shell. The product flows inside the tubes of the tube bundle and the service fluid outside. Product flow can be in single or multiple pass. The Inner tubes are smooth and seamless with good internal surface finish. All inner tubes include moving bars that support the scraping and mixing elements, which keep all the heat exchanger surface clean of fouling and agitate the flow to boost the overall heat transfer coefficient by reciprocating (unlike conventional scraped surface heat exchangers that move in rotation). The heat exchanger can be drained after use.

The unit is kept pressure tight by means of hydraulic seals. Units are 6 or 3 meters long and it has very few spare parts (there are no mechanical seals, etc.) The design of the units are patented.