
Home » Products » Universal Balancing Machine » Horizontal Balancing Machine » 9A713
Universal, belt-driven balancer for lightweight rotors up to 30 kg


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


Lightweight balancing machine 9A713 is used to balance rotors of various designs, the mass of which does not exceed 30 kg. The high sensitivity of the machine allows you to work with unbalances of very small magnitudes.
The main advantage of this machine is its unbalance detection accuracy and high productivity. Due to the simplicity of design and reliability, it can be used in single or small-scale production.
All machines of this series have a high accuracy of determining imbalance – 0.4 g ∙ mm / kg, (by special order 0.1 g ∙ mm / kg can be made). This accuracy is a combination of many factors, including the merit of machine design features:
Special features of this machine include very narrow supports (42 mm support width), which allows balancing of complex configuration parts such as crankshafts of cars, ship and railway turbochargers, turbochargers of cogeneration plants, etc. At the same time, these machines can be used for other simpler parts in terms of configuration such as electric motor rotors, all sorts of fans. This machine is also often used for balancing wood-cutting tools during their production.
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> |
0.3 – 30 1122_37898a-2c> |
|
Maximum rotor diameter (over the bed), mm 1122_c68955-0c> |
700 1122_0238f4-de> |
|
Distance between rotor bearing journal centers, mm, min/max 1122_6640fb-e8> |
10 – 700 1122_3921f4-1b> |
|
Rotor bearin journals diameter, mm 1122_90f436-d1> |
10 – 50 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 – 2000 1122_51538c-da> |
|
Drive type 1122_2f831e-97> |
Belt 1122_16c9ab-44> |
|
Electric motor power, kW 1122_78cfa4-15> |
0.75 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> |
1460 x 1240 x 1450 1122_e9e9f6-a7> |
|
Machine weight, kg 1122_5333dc-f2> |
300 1122_89f16a-93> |



Your questions — our technical solutions
The 9A713 is a universal lightweights-class machine designed to balance a wide range of parts:
Low-power electric motor rotors.
Turbocharger rotors (marine, railway, and cogeneration units).
Woodworking tools.
Small spindles.
Disc-shaped parts (fans, pulleys) with a diameter up to 700 mm.
Yes, the 9A713 works effectively with parts weighing up to 30 kg. This is its maximum rated limit. The support design is engineered for such loads, ensuring stable resonance response and operator safety while maintaining high measurement accuracy.
The maximum distance between support centers for the standard 9A713 version is 700 mm. If the total length of your rotor exceeds this value, but the bearing journals (contact points with the machine rollers) are located within 700 mm of each other, balancing is possible. If the distance between the journals exceeds 700 mm, an extended bed version of the machine will be required, which we can manufacture upon your request.
The 9A713 ensures high balancing accuracy with a minimum achievable specific residual unbalance of 0.4 g·mm/kg. This allows for the successful balancing of parts according to accuracy classes G1 and G2.5 per ISO 21940, which fully covers the needs of most general mechanical engineering and equipment repair sectors.
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.
Leave a request and our manager will contact you to answer questions via your preferred messenger.