The automated pre-stunning and pre-chilling system is engineered for high intensity operations on ocean-going processing vessels. After massive catch loading during net hauling, high-efficiency electrical stunning renders crabs unconscious within one second, completely eliminating pre-processing muscle stress and self-mutilationinduced limb loss.Coordinated with precision chilled seawater pre-chilling system at 0~-1°C, it rapidly induces a low-metabolic dormant state in crabs. This blocks the release of stress hormones at the source. It not only greatly improves meat yield in subsequent automated cutting processes, but also perfectly preserves the firm texture and native water-holding capacity of crab meat.

After crab-leg clusters complete continuous cooking in an enclosed high-pressure / atmospheric-pressure cooker, products are instantly transferred into a dual-stage high-efficiency RSW chilling tank to rapidly remove core residual heat. This thoroughly prevents tough meat texture, shrinkage and shell-meat adhesion from over-cooking.