VSR balance stand

VSR-Balance Stand for Turbochargers

We at Turbo-Expert aim to offer the highest quality and services to our customers!

For this purpose, the best requires the best machines, equipment, base and specialists - And we can provide it to YOU! After a long time of hard work, developments in cooperation with international companies such as G3, EVB, Redat, etc. we have developed our own VSR balance, which is in no way inferior to world leaders such as Turbo Technics, but we did not stop there in order to be able to offer 100%, so we equipped ourselves with more machines so that even with the slightest doubt we can subject everything to a Two-stage inspection and reduce defects, problems and risks to a minimum. For this purpose, we purchased one of the most modern VSR Balance machines, namely EVB TURBO SYNTHESIS 2019, which is recognized worldwide and provides extremely accurate and precise data and allows the balancing of turbochargers for Cars, Trucks, Tractors, etc. and we do not stop there, but also the components of the turbocharger such as the compressor impeller, the working shaft separately and together!

Here are the two machines that guarantee that we will carry out the process 100% correctly without errors and minimal risk because any doubt can be verified. On the left is the VSR Balance machine Turbo-Expert and on the right is the EVB TURBO SYNTHESIS !

EVB TURBO SYNTHESIS itself is divided into two, on the right is the High Speed ​​Balance, and on the left is the Low Speed ​​and Medium Speed ​​Balance.

EVB TURBO SYNTHESIS on the right tests the turbocharger at set speeds for an unlimited time and also has a test for oil leakage from the hot or cold part through a 3-step test! The three-step test of the turbocharger is a function available only on this machine which is expressed in a test of low, medium and high speeds for a set time to guarantee the tightness of the turbocharger, in this way we can test one for a certain time at speeds set by us and if the turbo consumes oil, it will certainly be seen and it will be clear whether it is at low, medium or high speeds which guarantees that even if we check your turbo for defects before repair we will be able to more easily identify the defects and whether the oil consumption comes from the turbo or elsewhere whether at idle or at high load, etc. and only WE can offer this. Our machines are the only ones that can test if the turbocharger is leaking oil from where and why and at what rpm and in this way we can understand if there is an additional problem with the engine besides the turbocharger. Our machines and equipment allow us to balance and test All turbochargers And our machine is the ONLY one that offers High Speed ​​VSR balancing of Heavy Duty Vehicles. During the balancing, the turbo stand supplies the turbocharger with preheated engine oil to the specified degrees, under the required pressure which can be regulated, thus ensuring the safety of the bearings and the test is carried out in conditions resembling the working process. The oil flow begins shortly before the turbine rotation and ends shortly after the blades have completely stopped.

EVB TURBO SYNTHESIS on the left is used for low-speed and medium-speed balance. In this method, adjustments are made to both the compressor blade (cold) and the turbine blade (hot blade). This is a mandatory component that provides a guarantee that there is no defective hot blade/shaft or compressor blade because only our machine offers a test of the components separately that provides information whether the components that will be inserted are not defective or bent, and if everything is fine, then we have a Guarantee for a quality high-speed balance.

EVB TURBO SYNTHESIS on the right is used for high-speed balancing. The final stage in the balancing process is the high-speed balancing, where vibrations (imbalance) are registered using modern VSR (Vibration Sorting Ring) technology. Magnetic sensors capture the finest vibrations, at this stage the turbocharger is spun up to its maximum achievable speed or that safely set by the manufacturer (in some cases up to 300,000 rpm). Corrections are made only in the compressor part of the turbo (the cold part), as our machines allow double balancing not only by removing material from the nut but also in the periphery of the compressor wheel, which reduces the imbalance to a minimum. Most balancing machines on the market can only work with the most common turbine sizes (around 75-80mm turbine blade diameter), which means that larger turbochargers cannot be balanced at high speed and this is detrimental to any turbocharger, here we can offer even more because our machines support up to 20kg. Core (CHRA) and compressor blades over 150mm and working shafts/axles over 100 to 150mm which is UNRIVALED. There are hardly many machines even on a global scale that can provide THIS to their customers. We have 2 of them because we value professionalism.

In practice, this allows us to test and balance all possible turbochargers in the world:

* Test and balance of larger turbochargers
Large turbochargers for trucks, buses, construction and agricultural machinery are everywhere balanced only at low speeds or not balanced at all. This leads to their rapid wear and tear and damage. With our stands, we guarantee a perfect balance of any size turbine because we can achieve high-speed balance for these turbochargers from 30,000 to 100,000 rpm, which puts us not one step but several steps ahead of others in terms of quality and capabilities.

* Test and balance of racing and hybrid turbochargers (motorsport)
The other advantage we offer through our equipment is with hybrid and turbochargers for power units. Extremely large turbochargers used in competitions, practically no one or extremely rarely anyone has the equipment to test them and guarantee the balance in Bulgaria and not only BUT we can now offer this to everyone, because according to the model of the turbocharger and its purpose we can reach and test its maximum and guarantee that up to that point it has perfect performance!

The characteristics of the Turbo-Expert VSR and EVB TURBO SYNTHESIS machines that we have are:

Speed ​​of low-speed and medium-speed balance - from 1000 to 40,000 rpm.

Maximum speed of high-speed dynamic balance for cars and racing/hybrid turbochargers - 300,000 rpm. For Turbo-Expert VSR balance and 250,000 rpm for EVB TURBO SYNTHESIS

Maximum speed of high-speed dynamic balance for trucks, buses, construction and agricultural turbochargers – 20,000 – 100,000 rpm. For Turbo-Expert VSR balance and 30,000 – 100,000 rpm for EVB TURBO SYNTHESIS 2019

Maximum weight of the central body of the turbo - 20 kg.

Minimum residual imbalance - 0.01 gmm for Turbo-Expert VSR and 0.01 for EVB TURBO SYNTHESIS

Maximum oil pressure - 7 bar for Turbo-Expert VSR and 6 bar for EVB TURBO SYNTHESIS

Air pressure during measurement - 10 bar for both machines allowing repeated tests and trials.

The air volume we have available for measurement - 1000 l/min for both machines, allowing for repeated tests and trials.

Two-sided Balancing guarantees 100% better results than One-sided, which guarantees a smaller remaining imbalance and thus reduces stress on the working components and extends the life of the turbocharger.

Both Turbo-Expert VSR balance and EVB TURBO SYNTHESIS machines are calculated extremely precisely as a machine-turbocharger weight ratio so that there is no resonance that could negatively affect the results.

We leave nothing to chance!