
Home » Products » Universal Balancing Machine » Horizontal Balancing Machine » 9D719
Heavy industry balancer up to 10,000kg, belt+cardan drive, industrial grade


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


9D719 is an universal dynamic balancing machine with horizontal axis of rotation type. Generally, It is possible to balance the following kinds on such a machine:
Thanks to the narrow stands and belt drive, the balancing machine 9D719 is used for balancing of rotors of various structures at repair and production plants.
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.
The width of the support rollers and roller cartridges allows the rotor to be installed with a very short length. Highly located “roller cassettes” allow you to create products with different overall dimensions, and the modular design allows you to increase the standard dimensions of the machine due to spacers and accessories.
The support has the ability to adjust the “roller block” in height, this allows you to balance the rotor with different diameters of the support journals, and also allows you to center the rotor when setting up the machine.
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 1122_cabfa7-a2> |
Value 1122_017417-51> |
|---|---|
|
Balancing rotors weight range, kg 1122_f82dfe-c5> |
100 – 10 000 1122_37898a-2c> |
|
Maximum rotor diameter (over the bed), mm 1122_c68955-0c> |
2500 1122_0238f4-de> |
|
Distance between rotor bearing journal centers, mm, min/max 1122_6640fb-e8> |
500 – 5600 1122_3921f4-1b> |
|
Rotor bearin journals diameter, mm 1122_90f436-d1> |
50 – 300 1122_761e74-f7> |
|
Machine type 1122_910ad2-81> |
Hard-bearing 1122_7111d0-8d> |
|
Support type 1122_d354b0-71> |
Rollers 1122_4d53fc-7c> |
|
Minimal achievable residual specific unbalance, gmm/kg 1122_a73821-f5> |
0.4 1122_fa2dbd-4a> |
|
Rotor rotation speed range, rpm 1122_39a0e8-c3> |
200 – 1000 1122_51538c-da> |
|
Drive type 1122_2f831e-97> |
Belt 1122_16c9ab-44> |
|
Electric motor power, kW 1122_78cfa4-15> |
30 1122_da0455-28> |
|
Power supply parameters 1122_c871ee-4a> |
400V ± 10%, 3 Ph, 50Hz ± 1 1122_88905d-cf> |
|
Balancing system 1122_cba250-79> |
PAK-1 1122_8a1b0b-32> |
|
Overall machine dimensions (length x width x height), mm 1122_ffc7fa-e8> |
7000 x 2300 x 1700 1122_e9e9f6-a7> |
|
Machine weight, kg 1122_5333dc-f2> |
6000 1122_89f16a-93> |



Your questions — our technical solutions
The 9D719 is a powerful stationary complex designed for servicing critical heavy industrial equipment. Featuring a combined drive (belt + cardan) and a massive swing over bed (2500 mm), it is used for:
Large-scale Energy: Low and high-pressure steam turbine rotors, hydro turbine shafts.
Mining Sector: Heavy hoist drums, crusher and grinding equipment shafts.
Metallurgy: Rolling mill rollers, main drive shafts.
Ventilation and Gas Cleaning: Smoke exhauster impellers and fans with a diameter of up to 2.5 meters.
Shipbuilding: Intermediate and propeller shafts for large vessels.
Yes, the machine is specifically designed for workloads up to 10 tons. The hard-bearing measuring system in this configuration possesses an enormous structural safety margin, allowing for the balancing of rotors with massive initial unbalance. The machine supports are equipped with special roller carriages capable of withstanding extreme pressure without compromising rotation accuracy.
In the standard version, the machine bed supports parts up to 5600 mm in length. However, considering the dimensions of turbine and propeller shafts, a bed extension option is provided for this model. VTM Group can manufacture guide rails of the required length, allowing the customer to balance rotors of practically any length while maintaining the reference rigidity of the entire system.
Despite handling extra-heavy loads, the machine ensures a precision level of balancing with a specific residual unbalance as low as 0.4 g·mm/kg. This guarantees compliance with accuracy classes G1 or G2.5 (according to ISO 21940), which is a mandatory requirement for the safe operation of multi-ton rotors at high operating speeds.
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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