The MB100 is a modular & transportable system that combines precise low-speed balancing and rotor machining capabilities in a single machine, built in compliance with EU 2023/1230 standards.
It is designed and supported by ex-OEM engineers to enable low speed balancing of steam turbine, gas turbine and electrical generator rotors, weighing up to 100 tons.
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Featured Case
One more MB100 has successfully passed its Factory Acceptance Test and has now been delivered to Doosan Power Systems Arabia in KSA. This machine handles rotors up to 100 tons and 4.5 m diameter, operating at 100–250 rpm for precise balancing quality grade G1.0 according to ISO 21940-11, powered by a 66 kW motor delivering up to 25,000 Nm torque.
The soft-bearing system suspends the rotor on flexible supports. The rotor behaves as if “floating,” allowing the system to measure its natural motion directly.
Balancing is performed at frequencies above the suspension’s resonance point, offering key advantages:
You can balance rotors at much lower and safer speeds, unlike rigid systems that require high speeds to generate sufficient detectable force.
You don’t require a massive, rigid foundation. You only need a level surface that supports the combined weight of the rotor and machine. This dramatically reduces installation costs.
You can move the equipment without affecting its calibration, unlike hard-bearing machines that require recalibration after each relocation. This is critical for multi-site operations.
A single system can handle an expanded range of rotors simply by changing suspensions and rollers, without needing multiple machines or complex configurations.
Each rotor is balanced using the trial weight method, meaning the system self-calibrates for each specific rotor, guaranteeing precision regardless of variations.
The gimbal design allows rollers to rotate and automatically align with the rotor, minimizing journal damage. Rigid systems use crowned rollers that concentrate pressure and can damage surfaces over time.
Although rotors with extreme initial unbalance may require additional techniques (such as static balancing or pedestal locking), the system is designed to handle these situations from the ground up.
Ensuring traceable, verifiable balancing accuracy at every step.
The system can be deployed nearly anywhere, with flexible work supports providing natural isolation from nearby activity.
One machine handles diverse applications without major reconfiguration.
This technology has been validated through decades of industrial use and adopted by multiple OEMs for both fixed and transportable applications. Our operational track record demonstrates a 100% success rate in achieving residual unbalance values within ISO G1.0 tolerances across diverse rotor types (contact us to learn more about balance quality grade G1.0 according to ISO 21940-11).