A specialty contractor from northern Massachusetts contracted Zimmerman Industries to design and source a unit for one of their divisions. The customer had owned and operated a Zim-Mixer volumetric concrete mixer for several years and used the mixer on various projects for the Massachusetts Turnpike, Department of Transportation, as well as work at the Logan Airport. Due to the success that they had with our equipment and the service Zimmerman provided, they approached us about building a machine that would be built utilizing our basic design, but to their special requirements. Among these were sealed bins, trailer mounting, hydraulically operated loading doors, a self- contained unit stabilizing system, and a digital interface with another piece of equipment. Within days of arrival, the batching unit was put to full working mode. The first day on the job site work saw the production of approximately 100 batches of product, a gypsum based sub-floor material for a large condominium project in Danvers, MA. The unit met all of the customers’ requirements, and exceeded their expectations.