Stainless steel chamber with mild steel jacket chamber 1,900mm dia x 1,600 mm deep dish bottom to 70 mm dia outlet mounted on 4 mild steel legs to give 1000 mm ground clearance. Mild steel bridge with stainless steel lid hinged one side of the bridge fixed on the other with various connections, centre mounted gate type stirrer 4 Kw 16 Rpm. Mild steel jacket tested 75 PSI.