The Rapidmix 400CW twin-shaft continuous mixing plant is also Continuous Weigh (CW). It has been designed to be totally mobile and completely self-contained with its own power source. It is also completely self erecting, using the hydraulic system to change the plant from its travel mode into a fully operational plant in a few hours. The 400 CW model is capable of mixing up to 400 tons per hour depending on application.