The IMER Silent 300 mixing, pumping and spraying machine is ideal for materials such as grouts, concrete with small aggregate, block filling, spraying mortars, fireproofing and underlayments. The progressive cavity pump can mix up to 6 cu. ft. (170L) of material, while the hopper supplies the pump the previous batch of material. The impressive unit features a Kohler / Lombardini 3-cylinder industrial duty diesel motor which powers an all-hydraulic drive system. With the combination of a powerful motor and a well-designed hydraulic system, the Silent 300 is able to mix, pump, and spray/ place material all at the same time.