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    Universal balancing machine with variable speed model 9D716V

    The 9D716V balancing machine is a versatile machine with a balancing accuracy of 0.4 g*mm/kg, widely used in a variety of industries. Easily adaptable to any part weighing up to 500 kg, popular in repair shops. Quick changeover for work with different products. Infinitely variable speed control eliminates balancing of the rotor at its resonant frequency, providing accurate measurement results.

    The machine includes two vibration mounts with a set of “axial stops” and a “speed sensor” bracket, as well as an electric drive and a frame. The supports and drive can move along the bed by means of a chain drive, which simplifies the adjustment for parts of different lengths. It is controlled by a control panel that is part of a freestanding electrical cabinet.

    The electrical cabinet contains industrial electrical equipment including a frequency converter for continuously variable speed control of the drive. The electric drive can be a belt drive (“belt drive”) or a cardan drive (“axial drive”). The machine can have one or both drives, which makes it more versatile and reliable because the drives will duplicate each other.


    The Model 9D716V Universal Balancing Machine can handle these types of parts :

    • Inter-supported “shaft” type (the center of mass of the part is between the supports);
    • Cantilever type (most of the part’s mass is located on one side behind the supports);
    • Disc type part (if the part does not have its own bearing journals, a mandrel is used for balancing);
    • A part on its own bearings.

    To detect unbalance, force sensors located in the vibrating supports and a velocity sensor controlling the rotation of the part are used. The force sensors convert the vibration of the unbalanced part into digital signals. The rotational frequency of the part is also converted into electrical pulses. The information from the sensors is processed by the balancer’s computing unit and displayed in a convenient format on an output device such as a computer or a microprocessor screen.

    When ordering a machine, the customer can choose one of two ready-to-use balancing systems: PB-02M (microprocessor-based system) or PAK-1 (industrial computer-based system). We can also design a special custom balancing system with the features you suggest.

    • The bearing rollers are manufactured using a patented “exact barrel” grinding technology, high-precision bearings and a unique assembly technology that guarantees an unbalance detection accuracy of 0.4 gmm/kg (or even 0.1 gmm/kg by special order);
    • Infinitely variable speed control of the part speed provides the ideal conditions for optimum balance;
    • “MODULAR DESIGN” patented machine design with high modularity, allowing easy change of equipment characteristics when changing modules;
    • Safe handling of large workpieces is ensured by the design and height of the supports and roller cassettes;
    • Roller position adjustment and belt tension adjustment provide a perfect grip on the workpiece and high machine accuracy;
    • The axial drive gives a rigid grip on the workpiece, ignores errors due to aerodynamic drag and allows fast acceleration/deceleration, reducing the balancing cycle. The “axial drive” quill simplifies and speeds up the balancing cycle, providing greater ease of adjustment;

    Functions of the PAK-1 hardware and software package:

    • Calculation of “allowable unbalance,” “drilling depth,” and “test weight” simplifies balancing by eliminating complex mathematical calculations;
    • “Vector averaging” improves machine accuracy in balancing by combining multidirectional unbalance vectors;
    • “Tooling eccentricity accounting” mathematically cuts off “parasitic” tooling vibration from the part being balanced;
    • Distribution of unbalance on the n-plane of correction optimizes the use of available space for installation of correction weights;
    • Distribution of correction weights to structurally determined points (e.g. blades, slots, holes);
    • Creating, storing and printing balance reports helps to eliminate “quality of work” issues.

    Main Specifications

    Parameters 9D716V
    Balancing rotors weight range, kg 5 – 500
    Maximum rotor diameter (over the bed), mm 1300
    Rotor bearin journals diameter, mm 30 – 180
    Distance between rotor bearing journal centers, mm, min/max 200 – 2000
    Support type
    Minimal achievable residual specific unbalance, gmm/kg 0,4
    Rotor rotation speed range, rpm 300 – 1500
    Drive type Frequency-controlled asynchronous electric drive
    Electric motor power, kW 2,2
    Drive gear type Belt
    Equipment Balancing device
    Bed length, mm 1600

    * The parameter can be changed as per the customer’s request





    The operation manual on the machine with acceptance tests reports and the basic electric circuit 1 pc.
    The operation manual on balancing system 1 pc.



    High universality

    Service in the EU

    Short time measurement

    Low-cost maintenance

    Reliable and productive

    Quick payback time

    Design features of the machine

    The unique micro-tuning mechanism ® technology eliminates the “thread” effect (when the rotor moves axially) on the variable speed balancing machine 9D716V.

    The supports are set relative to the bed with a chain mechanical drive, this simplifies the setup process.

    The special design of the supports allows you to install the rotor without paying attention to its length, the only limitation is the width of the “drive belt” and the length of the bed. (By special order, the bed can be made under the rotor of any length).

    The “belt drive” has the patented LONG STROKE ® design which allows with just two drive belts to balance any rotor.

    An alternative to a “belt drive” is an “axial drive”, which uses a cardan shaft that is capable of transmitting large torque from the electric motor to the rotor. Such a drive is used for parts with high aerodynamic drag. The axial drive of all machines of the 9D series is equipped with a full-fledged quill.


    By special order, it is possible to order a combined version of the machine (with two drives: axial and belt).

    Belt drive provides versatility of the machine, large travel of tension pulley allows only one or two belts to be used. Belt installation does not require disassembly of the unit.

    All electrical equipment is located in the cabinet, the outer cables are in metal hose. The assembly matches CE standarts.

    Preconfigured frequency-controlled asynchronous electric drive allows control of the rotor speed, acceleration and deceleration process.

    Safe working conditions on the machine are provided by rigid stops, protective covers of the drive belt and rotating pulleys, safety interlocks, ergonomic controls, etc.

    Crankshaft Balancer 9D715US
    Crankshaft Balancer 9D715US
    Crankshaft Balancer 9D715US


    Digital system is based on an industrial fanless computer with a touch screen and a measuring unit.

    Set-up mode by “triple start-ups” method with the use of calibration weights on the serial rotors with initial unbalance.

    Calibration of the machine is made by the operator enabling to reach the maximum sensitivity of the machine, thus exempting from the duty to pay annual calibration fees.

    • Calculation of the balance tolerance values in default of technical documentation for the balancing product.
    • Value calculation of the correction test weights to simplify the tuning process for the balancing rotor.
    • Real-time balancing display, i.e. if there is any defect or a hindrance of a rotor, it’s visible immediately as fluctuation in measurement result.
    • View of unbalance value in grams, gmm, gsm, gmm / kg optionally.
    • Taking into account the eccentricity of the balancing mandrel.
    • Unbalance distribution on n-planes correction
    • Calculation of hole depth for correction of unbalance.
    • Possibility of decomposition of correcting weights into structurally conditioned anchoring points (blades, fans, slots).
    • Rotor balancing report creating and printing.
    • USB port for printer connection, USB-flash memory, port for connecting to local network and Ethernet network.
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