An increasing number of contractual obligations call for various forms of vibro- compacted concrete for achieving a better and more consistent mixture. 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, which in turn, vibrates the needle at about 10,000 vibrations per minute. (approx. )
Salient Features

• Specifications : Needle Vibrator with a 25mm. diameter x 350mm long needle, a one meter long flexible shaft and a motor drive with a swivel head and on/off switch. Wired for 230 V. Single phase, 50 Hz