... -hardening sand fill in the molding machine, generate sand mould for pouring. Technology process Used-sand reclamation, Used-sand crushing regeneration ... consumption can be saved as well as throwing sand required for the old ,such as transportation costs, and renewable sources of ... , 20t/h, 25t/h, 40t/h, 60t/h, 80t/h resin sand production sand, 10t/h, 15t/h, 20t/h, 25t/h, 40t/h, 60t/h, 80t/h, 100t ...