Petrol Concrete Needle Vibrator

Immersion or Needle Vibrators are most commonly used vibrator for concrete. It consists of a steel tube (with one end closed and rounded) having an eccentric vibrating element inside it. This steel tube called poker is connected to an electric motor or a diesel engine through a flexible tube.They are also referred to as immersion, poker or needle vibrators. They essentially include an energy unit and a long flexible tube on the top of which a vibrating head is attached. Power is furnished by means of an electric powered motor, compressed air or petrol engine.The needle vibrator is recommended for vibro- compaction of test cylinders and beams at site and in the laboratory. This instrument can also be used at small construction sites. A motor fitted on a swivel base drives a flexible shaft.