... 4.easy operation 5.environmental pollution Introduction This production line, to self-hardening sand as material, ... -sand temperature adjustment, New&used sand conveying, Add resin or sodium silicate, etc, Mix sand, Making core ... personnel The specifications as follows:1.Resin sand is a resin binder-type configuration(core)sand.2 ... 25t/h, 40t/h, 60t/h, 80t/h resin sand production sand, 10t/h, 15t/h, 20t/h, ...