9K718M
Soft-bearing balancer for heavy-weight rotors up to 8000 kg, belt+cardan drive
Maximal weight, kg
Maximal diameter, mm
Specialized for heaviest rotor balancing needs
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:
- Self-aligning rollers.
- Frequency-controlled asynchronous electric drive.
- The presence of jacks for smooth and shock-free installation of the rotor.
- The possibility of using the machine without installation on a special foundation.
- 2 end stops included.
- HIGH BALANCING ACCURACY 0,4 GMM/KG
- REAL TIME DISPLAYED IMBALANCE MEASURING
- SOFT-BEARING SYSTEM ENSURING LINEAR SENSITIVITY AND HIGH PRECISION ACROSS ALL SPEEDS
- SELF-ALIGNING ROLLER BLOCKS AUTOMATICALLY ADJUST TO THE ROTOR ON TWO AXES
- CYLINDRICAL ROLLERS HAVE A WIDE CONTACT AREA TO PREVENT ROTOR SURFACE DAMAGE
- LONG STROKE BELT DRIVE
- INFINITELY VARIABLE SPEED CONTROL OF THE ROTOR IS PROVIDED BY THE FREQUENCY INVERTER DRIVE
- OWN ADVANCED MEASURING SYSTEM
- SELF-DIAGNOSTICS FUNCTION
- ENGLISH INTERFACE
- CUSTOMISED PRINT OUT OF BALANCE DATA
- DATA STORAGE TO INTERNAL FLASH MEMORY AND USB MEMORY STICK
- 17-INCH TOUCH SCREEN MONITOR
- OPERATION & SERVICE PERSONALIZED MANUALS
- INTUITIVE SIMPLE OPERATIONING
- HIGH PRODUCT RELIABILITY
- SAFETY OPTIONS MODIFICATIONS
- LOW-COST SPARE PARTS
- OEM AND AFTERMARKET REPAIRS
- 12 MONTHS WARRANTY
Advanced Heavy-Duty Self-Aligning Support Systems
- Self-aligning roller cassette design – Roller cassettes automatically adjust to rotor positioning in two axes, reducing setup time and eliminating rotor surface damage from misalignment on the heaviest components. The self-aligning feature minimizes operator skill requirements while ensuring optimal rotor-to-roller contact geometry for maximum loads.
- Extra-wide cylindrical roller configuration – Roller width specifically designed to support the heaviest rotors up to 8000kg for extended periods without surface “knurling” effects on rotor bearing journals. The extra-wide contact surface with radius chamfers distributes maximum loads evenly to preserve rotor surface integrity.
- Quick-change roller system for maximum capacity – Specialized roller cassette design enables roller replacement within two minutes using additional roller sets optimized for the heaviest rotor applications. The quick-change capability maximizes machine utilization by minimizing downtime during maximum-capacity rotor changeovers.
- Hardened roller surface treatment for heavy loads – Rollers manufactured with 52-56 HRC surface hardness ensuring extended service life under maximum loading while maintaining optimal contact characteristics. The hardness specification balances durability with heavy rotor surface protection requirements at maximum capacity.
Mechanical Structure Design
- Soft-bearing pendulum suspension system – Heavy-duty pendulum-mounted support structure provides exceptional measurement sensitivity with visual resonance detection for the largest rotors up to 8000kg. This advanced soft-bearing design enables unmistakable identification of resonance frequency range and tactile residual vibration assessment for the heaviest industrial applications.
- High-movement pendulum suspension for maximum applications – Suspension design provides exceptional sensitivity for micro-vibration detection with operator “feel-based” assessment capability after balancing the heaviest rotors. The high-movement characteristic enables tactile verification of balance quality complementing electronic measurement for maximum-capacity components.
- Maximum-capacity modular design architecture – MODULAR DESIGN® system enables interchange of tooling and machine characteristics including diameter adjustments and cassette modifications for the heaviest rotor applications. The modular approach maximizes machine adaptability across diverse heavy industrial rotor types without equipment replacement.
- Extended height-adjustable roller cassettes – Variable height mechanism accommodates rotor bearing journals from 20-400mm diameter while maintaining precise alignment and support characteristics under maximum loads. The extended adjustment range enables flexibility across the largest industrial rotor geometries.
- Patented “MOVING ROLLER”® axial stops for maximum capacity – Enhanced axial positioning system prevents rotor displacement and flyout of the heaviest rotors while minimizing balancing errors through specialized contact design. The patented stops provide maximum safety for substantial rotor masses without compromising measurement accuracy.
- Heavy-duty support arrestor mechanism – Integrated arrestors enable single-plane balancing operations and support fixing during resonance frequency passage with maximum capacity for the heaviest rotors. The arrestor system provides operational flexibility while maintaining measurement precision across operating ranges under maximum loads.
- Superior vibration isolation for heavy industrial environments – Soft-bearing design provides exceptional isolation from external vibrations while maintaining sensitivity to rotor-generated unbalances from the heaviest industrial components. This isolation ensures accurate measurements in the most demanding heavy industrial environments.
High-Power Heavy-Duty Drive System
- High-capacity frequency-controlled drive – 22kW electric motor with substantial power reserve reduces acceleration and deceleration times while ensuring adequate torque for the heaviest rotor configurations up to 8000kg. Frequency inverter provides smooth speed regulation across 200-1300 rpm range with motor protection and stepless control capability.
- Patented “LONG STROKE”® maximum-capacity belt drive – Advanced belt drive design with wide tension adjustment range utilizes only two belt sizes to accommodate all heavy rotor requirements up to maximum capacity. The patented system enables rapid belt changes and precise tension adjustment critical for soft-bearing measurement accuracy under maximum loads.
- Heavy-duty adjustable tension pulley mechanism – Variable tension system allows precise belt force adjustment to optimize soft-bearing measurement characteristics while preventing over-tensioning effects on the heaviest rotors. The adjustment capability ensures optimal drive characteristics across diverse rotor weights and configurations up to 8000kg.
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.
Features of the PAK-1 System:
- High-precision dynamic balancing for rotors of any configuration.
- Industrial fanless PC with touchscreen and multi-channel measuring unit.
- Setup using trial runs with calibration weights on production rotors.
- Self-calibration by the operator, eliminating annual service adjustment costs.
- Calculation of permissible unbalance values, even without technical documentation.
- Determination of control weight mass to simplify setup for a specific rotor.
- Real-time display of unbalance magnitude and angular position, including “highlighting” of the correction zone.
- Automatic measurement start upon reaching a set speed and automatic stop after cycle completion.
- Display of unbalance magnitude in grams, gmm, gcm, gmm/kg.
- Vector and exponential averaging for working with moving elements and in noisy conditions.
- Additional functions that significantly simplify the balancing process and expand the technological capabilities of the balancing machine.
- Generation and printing of balancing reports directly from the system.
- USB ports and Ethernet interfaces for connecting a printer, data storage, and integration into a local network.
Parameter 1122_cabfa7-a2> |
Value 1122_017417-51> |
---|---|
Balancing rotors weight range, kg 1122_f82dfe-c5> |
80 – 8000 1122_37898a-2c> |
Maximum rotor diameter (over the bed), mm 1122_c68955-0c> |
2600 1122_0238f4-de> |
Distance between rotor bearing journal centers, mm, min/max 1122_6640fb-e8> |
400 – 5000 1122_3921f4-1b> |
Rotor bearin journals diameter, mm 1122_90f436-d1> |
30 – 420 1122_761e74-f7> |
Machine type 1122_910ad2-81> |
Soft-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 – 1300 1122_51538c-da> |
Drive type 1122_2f831e-97> |
Belt 1122_16c9ab-44> |
Electric motor power, kW 1122_78cfa4-15> |
22 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> |
6000 x 2300 x 1700 1122_e9e9f6-a7> |
Machine weight, kg 1122_5333dc-f2> |
3500 1122_89f16a-93> |
- 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.
- Drive belt – 2 pc.

Extended machine base

Rotor jacks
