Maximal weight, kg
Maximal diameter, mm
Rotor length, mm

Balancing machine for balancing a wide range of rotors weighing 15-1500 kg.

Universal, horizontal, hard bearing.

On such a machine it is possible to balance

  • inter-support and cantilever rotors (armatures, pumps, turbine rotors)
  • rotors on special mandrels (smoke pumps, fans, pulleys, impellers)
  • rotor in own bearings (rollers, shafts)


Our company has a technical support service center. If you have any questions, you can contact us for help.

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    Leave a request, our manager will contact you to clarify the details for a commercial quote.


    The balancing machine 9D717 is used to balance rotors of various structures at repair and production plants. Thanks to narrow stands and the ability to install a combined rotation drive for various technological methods. The 9D717 model machine has a simple, but rather reliable and functional design, which allows you to easily balance the anchors of electric motors of all types, generator rotors and balance parts such as beaters and fan wheels even if they have a large initial imbalance.

    Having the necessary equipment, it is also possible to balance the rotors in their own bearings, which greatly reduces the repair time since replacing the bearings can create many problems and cause damage to the trunnions of the rotor.

    In this way, it is convenient to detect and eliminate imbalances on motor rotors, drums, rolls of metallurgical gears, as well as screw shafts and shafts of printing equipment. The machine has a high degree of versatility, which allows balancing disk-type parts, such as impellers and working wheels of smoke pumps, and eliminating imbalances on shaft-type parts, for example: threshing drums or combine rotor.

    Assemblies such as pumps and blowers often need to be balanced after repair or due to wear of working planes during operation and a balancing machine of the 9D717 series does well in balancing these rotors.


    High balancing accuracy 0,4 gmm/kg = 0,4 µm


    • The special design of the rollers, which are assembled with precision bearings and use the advanced, patented grinding technology “exact barrel” ®.
    • The monolithic design of the supports and base prevents vibration losses during balancing by reducing the number of “oscillation system” elements.
    • High-precision sensors can even detect micro-vibration coming from the rotor.


    • Enables measurement of large initial unbalances without destroying the machine, as well as correction of rotor unbalance directly on the machine.
    • Low natural resonance frequency of the supports allows the balancing of the rotor at low rotational speeds.
    • The width of the support rollers and roller block allow the installation of rotors with very short rotor bearing journals. The modular design allows the mounting of rotors with unusual configurations by means of spacers or tooling.
    • The height of the roller block is adjustable, allowing to balance rotors with different diameters of bearing journals and also making possible to center the rotor during machine setup.
    • The unique “MICRO-TUNING” ® technology eliminates the effects of axial misalignment during rotation.
    • The special design of the supports makes it possible to mount the rotor without regard to length, the only limit is the width of the drive belt or the length of the bed.
    • The “belt drive” has a patented “LONG STROKE” ® design which allows, equipped with only two drive belts, to rotate any rotor.
    • The electric motor has a power reserve, which reduces the acceleration and deceleration time of the part.
    • The electric motor has a power reserve, which reduces the acceleration and deceleration time of the part.
    • Smooth acceleration and deceleration of the electric motor as well as infinitely variable speed control of the rotor is provided by the frequency inverter drive.

    Many unique technical solutions for adjusting and balancing complex rotors, without losing precision in unbalance detection.

    Machine design options

    • Axial drive, which uses a cardan shaft. Capable of transmitting high torque from the electric motor to the rotor. This type of drive is used for parts with high aerodynamic drag or special design features (e.g. augers). The axial drive of all machines of the 9D series is equipped with an extendable spindle.
    • Combined drive – both axial drives and a belt drive on one frame. This machine will be in demand by companies with rotors of various designs.
    • Drilling module for unbalance correction of the rotor without removing it from the machine. Handy for use to increase productivity of the operation.
    • Extended machine bed. The base of the machine can be made for any length of rotor. In our practice we had machines for rotors 12 meters long.


    We make balancing easier – the main advantage characterizing our balancing systems.

    • Ease of use and simple operation do not require special theoretical knowledge from the operator.
    • Displays the balancing process in real time and monitors the unbalance behavior of the rotor on the screen to achieve the best possible result.
    • The maximum sensitivity of the machine at any moment of operation, set-up and calibration of the machine is carried out by the operator himself.
    • Free from the influence of external vibration factors on the measuring result, has a high degree of protection against various types of disturbance.
    • World-leading functionality and accuracy due to 40 years of industry development and application experience.


    Weight range of balanced rotors, кг15 — 1500
    Maximum rotor diameter (above the bedding), mm1800
    Diameter of rotor support necks, mm40 — 230
    Distance between the middles of the rotor support necks, mm, min/max360 — 3000
    Support typeRollers
    Minimum achievable residual specific imbalance,,4
    Rotor speed range, rpm250 — 1200
    Drive typeFrequency-adjustable asynchronous electric drive
    Electric motor power, kW7.5
    Rotor rotation transmission elementBelt
    InstrumentwarePB-02M / PAK-1
    Support length, mm3150
    PackageDrive belts, Rotors Maintenance Manual



    The page lists the characteristics of the basic model of the machine. Almost any parameter(diameter, length, weight, etc.) of the machine can be changed on the customer’s request. When ordering the machine, all parameters of the machine will be agreed additionally.
    We will calculate the tolerances for the permissible residual disbalance according to your drawings. Balance correctly!