In Situ Balancing Services

In-situ balancing is the process of balancing a rotor in its own bearings and support structure, in assembled conditions.

Our specialised in-situ balancing service helps carry out accurate balancing of rotors in the plant without removing them. Accurate results are achieved within required tolerance within short period of time.

Balancing is the process by which the mass distribution of a rotor is checked and, if necessary, adjusted to ensure that the residual unbalance or the vibrations of the journals/bearing supports and/or forces at the bearings are within specified limits.

Many rotors are balanced in specially designed balancing facilities prior to installation into their bearings on site. However, if remedial work is carried out locally or a balancing machine is not available, it is becoming increasingly common to balance the rotor in situ.

In Situ Balancing Services
In-Situ Balancing Services

The aim of balancing is to reduce the vibration level at the rotational frequency of a rotating machine.

This procedure involves improving the distribution of rotor masses so as to reduce the eccentricity of the centre of gravity and thereby the resulting centrifugal forces. Generally, unbalance is corrected by adding or removing compensating masses to the rotor at prescribed locations in order to counter the effect of the initial unbalance.

On site balancing procedure

The balancing procedure involves testing the effect of masses on the balancing planes defined by us (flange of a wheel, fan blades, predicted balancing holes or slopes, etc.) in order to determine the number and location of the correction masses using our calculation software.

This procedure reduces production losses on site as the machine does not need to be disassembled.

In-Situ Balancing can be performed in Single Plane & Two Planes depending on the Job.

Insitu Balancing Services

Benefits of In-situ Fan Balancing

Eliminates the requirements to completely dismantle and reassemble plant equipment to enable balancing of machine components

Improves product quality

Can be planned into scheduled short time outages e.g. machine mould or process changes

Reduces downtime, labour and material costs

Extends bearing and machine life

Reduces the possibility of catastrophic failures

Increases safety





Pump impellers

Motor rotors

Fans and blowers

Process rolls

Air Pulleys and sheaves

Bearing spindle assemblies

Printing drums



High-speed tooling

Cutting tools

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