case packer/unpacker can handle different plastic cases and carton cases. they are available in double four-linkage type and translational type. movement of four-linkage type is driven by motor with braking. the unique double four-linkage mechanism ensures accurate and smooth lifting and lowering of bottles. movement of transltional type is driven by servo mtor with braking. interlocked forward/backward and up/down movement ensures accurateand smooth lifting and lowering of bottles. cases are positioned one by one to secure alignment of gripper head with bottle mouth.