High quality immersion vibrators : high centrifugal force, stable speed and high amplitude ensure excellet concrete vibration with fewer dips. Long life of the needle thanks to hardened steel caps, easy to repair because the caps are not welded. Highly reliable tool thanks to the use of self-lubricating bearings and cooling through the addition of oil that also avoids condensation. Waterproof hose connection thanks to the use of a cable gland. Repairs possible on the vibrator head. Electronic box has the following safety systems: protection against short circuits between phase and phase output, protection against short circuits between phase and ground output, protection against overheating, load limitation circuit output.