Diesel Needle Concrete 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.The Laboratory needle vibrator having 350mm long X 25mm dia Needle is used in vibrating concrete test cylinders and beams in the eld or laboratory. It is also widely used in making laboratory specimens, in making concrete products, in experimental works, and in small scale construction project.the compaction of concrete in congested reinforcement. They are also called immersion, poker or needle vibrators. They essentially consist of a power unit and a long flexible tube at the end of which a vibrating head is attached. ... The frequency of the vibrator is about 700 cycles per minute.