Internal vibration is accepted as being the most effective maximum strength and consistent quality in the preparation of concrete structure. The CEC range of poker vibrators have been designed to undertake this duty with maximum efficiency and minimum cost. Ease of operation, lightness and reliability combined with a high effective range ensure faster working and increased output. CEC Mechanical Vibrator with Petrol Engine Robin 5.5 HP 4-stroke petrol engine on tubular square frame bonded to a convex cushioned base of exclusive CEC design. This unique mounting allows the drive unit to swivel easily following the direction of the flexible shaft whilst the tough rubber base absorbs engine vibrations and limits creep. Fitted with square cage type tubular steel frame affording complete protection for the engine and convenient carrying handles for transportation. The engine is fitted with an instantaneous coupling to accept the standard plug in connector. CEC Mechanical Vibrator with Diesel Engine Robin Air cooled diesel engine mounted on the CEC patent Steel /rubber bonded base with tubular steel frame as fitted to model CEC DY-23 the engine is fitted with as instantaneous coupling to accept the standard plug in connector. CEC Mechanical Vibrator Electric Motor Electric power unites are also available fitted with instantaneous couplings to accept the standard plug in connector and complete with starters. Comes in 220V - 380v