What is the primary application of platform/pan vibrators?

They are used for surface compaction of shallow concrete elements such as floor slabs, road pavements, and flat precast products.

What is the minimum operating frequency for a platform vibrator?

The standard specifies a minimum frequency of 3000 vibrations per minute (VPM).

What is the maximum effective depth for compaction using this equipment?

Platform vibrators are generally effective only up to a concrete depth of about 150 mm.

IS 3366

: 1965

Concrete Vibrators, Platform Type - Specification

CurrentSpecializedSpecificationStructural Engineering · Scaffolding, Formwork and Construction Equipment

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This standard lays down the requirements for materials, sizes, construction, and performance of platform-type (pan) concrete vibrators used for the surface compaction of shallow concrete placements.

Specifies requirements for platform type concrete vibrators.

Quick Reference Values

Minimum frequency of vibration3000 vibrations per minute (VPM)

Maximum effective compaction depth150 mm

Practical Notes

Platform vibrators are highly effective for consolidating stiff concrete mixes in shallow placements (up to 150mm thick).

For concrete depths exceeding 150mm, platform vibrators should be used in conjunction with internal (needle) vibrators to ensure full-depth consolidation.

Do not leave the vibrator stationary in one spot for too long, as it will draw excess cement paste to the surface and cause scaling or segregation.