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Balancing 

Turbo Dynamics are equipped with the latest balancing technology to balance every single turbocharger. Our premises, located in Christchurch, holds a state of the art VSR high speed core machine as well four-plane dynamic balancing machines. Four-plane dynamic balancing technology is used to balance turbochargers using computerised, state of the art machines, with rotor capacities of up to 20kg and 400mm diameter.

Turbochargers are assembled from component parts which are individually balanced using conventional low-speed, hard bearing balancing machines. Typically, both the turbine wheel and the compressor wheel component of a turbo charger are balanced in two planes. 

In plain English, at the turbine end of a turbocharger, the balance is not affected by the assembling into the cartridge.  However, at the compressor end small errors in the wheel, the shaft, the thrust collar and the nose nut can result in an accumulation inaccuracies can result in one very noisy turbocharger and can also cause premature bearing failure.

We can correct an imbalanced turbocharger by running the assembled cartridge at a high speed on a flexible suspension. This allows us to measure vibration responses and allows us to deduct whether components need to be altered at an assembly point, or if the removal of metal material from the nose can establish an acceptable level of balance.

This process usually requires the unit to be run at speeds close to the normal service operating speed, typically 100,000 to 200,000 rev/min, dependant on the wheel size.

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High Speed VSR Balancing for Turbos

The VSR High Speed Machine, calibrated up to 230,000 RPM, looks for, and measures, vibrations during the acceleration and deceleration of the turbocharger core assembly. Our skilled technicians then remove material to bring these levels down. Whilst the VSR balancing machine is predominantly used for turbocharger balancing we also use it for fault diagnosis. The machine runs a constant 4 bar of oil pressure and so allows us to test turbos for oil leakage at various rotor speeds.

In 2013 we were approached by a well-known video games manufacturer to help them record turbo noises for the latest 'Need For Speed' computer game. We used one of our VSR balancers to replicate the rotor speeds and performance most likely to be seen on the road.  

Rotor Balancing of Turbos

We are equipped with four-plane Dynamic Balancing technology with which we balance turbos using computerised state of the art machines with rotor capacities of up to 20kg and 400mm diameter. These machines are the first step in balancing a turbocharger and are used to ensure the rotor assembly (compressor wheel and turbine wheel) are balanced as a pair when assembled. Tiny amounts of material are removed from the rotor assembly to bring the balance to an acceptable level – whilst the exact balance specifications vary between turbos it is worth pointing out that all our balancing specifications call for a smaller level of inbalance than the turbo manufacturers themselves.

If you have any questions or queries regarding our Rotor balancing or other services please don’t hesitate to ask.

If your turbocharger needs balancing then fill out the contact form or call us today on

01202 487497

 

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