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Soft-bearing heavy industry balancer up to 10,000kg, belt+cardan drive


Maximal weight, kg
Maximal diameter, mm
Maximum length, mm


The machine has high accuracy (0,4 gmm \ kg). Accuracy is achieved due to the special design of the spindle and the rig of the machine, as well as a reliable balancing system, PAK-1, which has a high degree of noise immunity. Ease of control allows you to quickly learn how to work on the machine and get to work as soon as possible. When designing the machine, high demands were placed on the functionality and versatility of each node, this made it possible to install absolutely any driveshaft on the machine with a minimum of time.
Characteristic features of soft bearing balancing machines:
The PAK-1 unbalance measuring unit represents the latest generation of measuring complexes for dynamic balancing, combining high precision, stability, and ease of use. It’s designed to tackle a wide range of rotor balancing tasks, from simple to the most complex, requiring precise measurements.

Based on an industrial fanless computer with a touchscreen and a multi-channel measuring unit, the system ensures reliability and a long service life, even under intensive use. The PAK-1 utilizes a universal measuring path and modern component base, allowing for equally high accuracy when working with all types of rotors.
Its intuitive interface, self-calibration capability, and automation of key operations make the complex a convenient tool for both experienced specialists and beginners.
|
Parameter |
Value |
|---|---|
|
Balancing rotors weight range, kg |
100 – 10 000 |
|
Maximum rotor diameter (over the bed), mm |
2500 |
|
Distance between rotor bearing journal centers, mm, min/max |
40 – 5600 |
|
Rotor bearin journals diameter, mm |
30 – 420 |
|
Machine type |
Soft-bearing |
|
Support type |
Rollers |
|
Minimal achievable residual specific unbalance, gmm/kg |
1.0 |
|
Rotor rotation speed range, rpm |
200 – 1300 |
|
Drive type |
Belt + Cardan |
|
Electric motor power, kW |
30 |
|
Power supply parameters |
400V ± 10%, 3 Ph, 50Hz ± 1 |
|
Balancing system |
PAK-1 |
|
Overall machine dimensions (length x width x height), mm |
8000 x 2400 x 1900 |
|
Machine weight, kg |
5000 |

Your questions — our technical solutions
The 9KW719 machine is a solution for heavy industry designed to balance massive between-support rotors. Thanks to its powerful anti-resonance system with a lever suspension, the machine effectively handles:
The combined drive (belt + cardan shaft) allows for balancing both parts with smooth surfaces and assemblies requiring high torque transmission via a cardan shaft.
Yes, 10 tons is the rated working load for the 9KW719 model. The base and support columns feature a reinforced design. The lever suspension system and self-aligning rollers ensure secure positioning and high measurement accuracy, even at maximum load capacity.
The machine’s standard base is designed for large components; however, VTM Group has extensive experience in implementing projects involving extremely long beds (over 5,600 mm). The modular architecture of the 9KW719 machine allows the length of the guideways to be adapted to the specific needs of a given facility, whether for servicing drive shafts or long paper machine rolls, while maintaining the ideal geometric accuracy of the entire system.
Despite handling loads of up to 10 tons, the 9KW719 delivers precision accuracy, achieving a minimum residual specific imbalance of 1 g·mm/kg, which fully meets the requirements of most sectors in heavy machinery manufacturing, the energy industry, and ship repair. This level of accuracy allows for the reliable balancing of 10-ton rotors to high accuracy classes according to ISO 21940 (e.g., G2.5 or G6.3, depending on the rotor’s operating speed).
Yes, the machine is set up for a new product type by the operator using trial runs with calibration weights.
This approach offers several key advantages for B2B production:
Maximum Sensitivity: Calibration allows adapting the measuring system to the specific geometry and mass of the rotor, minimizing error.
Accuracy Control: The operator can verify and confirm measurement accuracy at any time, eliminating the accumulation of errors during long-term operation.
Flexibility: The machine maintains reference-level accuracy even with non-standard or complex parts, as the system is tuned to the actual response of the specific rotor.
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