Cembre RHU231 Hydraulic Crimp Head Cembre RHU231 crimp head (hydraulic type) featuring a quick automatic coupler for connection to a hydraulic pump with a working pressure of 700bar maximum. Cembre Crimping Head RHU231 Copper Lugs & Splices up to 630sqmm Aluminium Lugs & Splices up to 500sqmm