The PS38 “Combination” series is constructed around Power-Sprays’ robust “multi-roller” 38mm peristaltic pumps driven by powerful 3-phase electric motors and frequency inverter speed controllers . With the “peristaltic pump” no moving parts are in contact with the materials, enabling these pumps to convey a wide range of mixes. Therefore, the PS38 Combination Spray Stations can be used to manufacture Traditional Hand Spray and Spray Premix GRC / GFRC.