What are the requirements for the operator handles?

Handles must be at least 100mm long with a grip diameter between 25mm and 40mm to ensure a secure hold during operation (Clause 3.2).

Does this code cover vibrators with electric motors?

It covers the mechanical safety aspects. For electrical safety, it cross-references other standards like IS 732 (Wiring) and IS 996/IS 325 (Motors).

What information must be marked on the vibrator?

The equipment should be marked with the manufacturer's name/trademark, model number, power in kW, and rated frequency in Hz (Clause 7.2).

IS 12159

: 1987

Concrete Vibrators - Mechanical Poker Type - Safety Requirements

CurrentSpecializedSafety CodeGeneral · Scaffolding, Formwork and Construction Equipment

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This standard specifies the safety requirements for the design and construction of mechanically-driven, poker-type concrete vibrators. It covers the power unit, flexible shaft, and poker head to ensure operator safety from mechanical, thermal, and electrical hazards during use.

Lays down safety requirements for mechanical poker type concrete vibrators.

Quick Reference Values

Minimum length of handle100 mm

Handgrip diameter range25 mm to 40 mm

Max surface temp of exhaust system150 °C

Typical rated frequency range100 to 200 Hz

Practical Notes

Before operation, always verify that safety guards for all rotating parts, particularly at the engine and shaft connection, are securely in place.

Regularly inspect the flexible shaft's outer casing for damage or excessive wear to prevent exposure of the rotating inner core.

This standard is crucial for equipment manufacturers and procurement managers to ensure the purchased equipment complies with basic safety norms.