9A712
Universal, belt-driven balancer for lightweight rotors up to 10 kg
Maximal weight, kg
Maximal diameter, mm
Improved performance for demanding balancing applications
Lightweight balancing machine 9A712 is used to balance rotors of various designs, the mass of which does not exceed 10 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.
- HIGH BALANCING ACCURACY 0,4 GMM/KG
- REAL TIME DISPLAYED IMBALANCE MEASURING
- ALL-METAL SUPPORTS FOR ROTORS WITH HIGH INITIAL UNBALANCE
- ROLLER CARTRIDGES ALLOW BALANCING OF ROTORS WITH “NARROW” BEARING JOURNALS
- SPHERICAL ROLLERS ENSURE STABILITY OF PARAMETERS AND ACCURACY OF MEASUREMENT
- 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
- ETHERNET CONNECTION FOR DIAGNOSIS
- 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
Small Series Production Design
- Rapid changeover capability – Support and drive system designs minimize setup time between different rotor configurations for efficient small batch production. The quick-change features maximize machine utilization in diverse manufacturing environments.
- Versatile rotor configuration accommodation – Design flexibility enables balancing of diverse light rotor types including precision instruments, small motors, fans, and specialized components. The adaptable configuration maintains measurement precision across varied applications.
- Minimal center distance capability – Support design accommodates rotors with extremely short distances between bearing journals down to 20mm minimum. This capability enables balancing of compact precision components with challenging geometric constraints.
- Hard-bearing design optimized for small rotors – Structural configuration provides optimal measurement characteristics for light rotor applications with option for soft-bearing support upon request. The hard-bearing approach maximizes measurement sensitivity for lightweight components.
- Innovative technical solutions integration – Multiple design innovations simplify balancing operations and make precision measurement accessible to operators without specialized training. The user-friendly design approach reduces operational complexity while maintaining measurement accuracy.
High Precision Measurement
- High-precision vibration sensor for light rotors – Sensor configuration optimized for lightweight rotor micro-vibration detection with exceptional sensitivity. The mounting design provides maximum measurement precision throughout the light rotor operational envelope.
- Precision roller assembly with advanced bearings – Rollers manufactured using patented “exact barrel”® grinding technology with high-precision bearing integration optimized for light rotor applications. The specialized bearing configuration provides exceptional sensitivity and rotational accuracy for small component balancing.
- Compact monolithic support and base construction – Integrated framework minimizes oscillation system elements to eliminate vibration losses for precision light rotor measurement. This structural design ensures consistent accuracy across the 0.1-10kg lightweight rotor capacity range.
- Extended speed range capability – Drive system enables operation up to 2000 rpm for light rotor applications requiring high-speed measurement capabilities. The extended range accommodates diverse light rotor balancing requirements including high-speed precision components.
Support and Mechanical Structure Design
- Dual support configuration capability – Interchangeable roller and prism support systems provide optimal mounting solutions for diverse light rotor geometries. The dual configuration approach accommodates both bearing-mounted and shaft-type lightweight components.
- Quick-change roller-to-prism conversion – Support design enables rapid replacement of roller units with prism units to minimize changeover time between different rotor types. This modular approach maximizes machine utilization efficiency in small batch and custom production environments.
- Enhanced roller accessibility design – Support geometry provides excellent access to roller assemblies for rapid rotor installation and removal operations. The accessible design reduces setup time and improves operator efficiency during frequent rotor changes.
- Adjustable support height mechanism – Variable height system accommodates rotor bearing journals from 20-100mm diameter with precise centering capability for small components. The adjustment range enables setup flexibility for miniature to small rotor geometries with high precision requirements.
- Compact monolithic support and base construction – Integrated framework minimizes oscillation system elements to eliminate vibration losses for precision light rotor measurement. This structural design ensures consistent accuracy across the 0.1-10kg lightweight rotor capacity range.
- Foundation-independent installation design – Self-contained structural design eliminates special foundation requirements, enabling installation on standard concrete floors. This design characteristic reduces installation costs and enables flexible machine placement in existing facilities.
Lightweight-Optimized Drive System
- Compact frequency-controlled asynchronous drive – 0.75kW electric motor optimized for light rotor acceleration and deceleration cycles with minimal power consumption. Frequency inverter provides smooth speed control across 200-2000 rpm range with infinitely variable adjustment capability for diverse light rotor applications.
- High belt tensioning repeatability system – Belt drive mechanism incorporates micro-tuning function for precise belt tension adjustment and exceptional repeatability during rotor changeovers. This design feature ensures consistent rotational characteristics across multiple measurement cycles.
- Variable belt tension micro-adjustment – Integrated micro-tuning capability allows fine adjustment of belt tension forces to optimize drive characteristics for different rotor weights and configurations. The adjustment system maintains measurement precision across the light rotor weight spectrum.
Functions and features of the PB-02M balancing system:
The machine is easy to maintain and has a high repairability thanks to its design and availability of components used in the market, besides its parts are unified and used in different models of machines that is why we always have them in stock.
Calculation of the “maximum allowable imbalance” and “reference” weight will eliminate the need to do mathematical calculations;
Vector based averaging improves the balance accuracy and reduces the measuring cycle;
Graphical and numerical information display makes it easy for anyone to analyze and work;
Balance history allows a quick assessment of the balance progress by returning to the previous measurement results;
Display of acceptable imbalance allows you to instantly understand whether the imbalance of the balanced cardan is in the acceptable limits;
Intuitive interface with tips for beginners to quickly learn how to operate the machine and eliminate the possibility of committing errors.
|
Parameter |
Value |
|---|---|
|
Balancing rotors weight range, kg |
0.1 – 10 |
|
Maximum rotor diameter (over the bed), mm |
700 |
|
Distance between rotor bearing journal centers, mm, min/max |
20 – 700 |
|
Rotor bearin journals diameter, mm |
10 – 50 |
|
Machine type |
Hard-bearing |
|
Support type |
Rollers |
|
Minimal achievable residual specific unbalance, gmm/kg |
0.4 |
|
Rotor rotation speed range, rpm |
200 – 2000 |
|
Drive type |
Belt |
|
Electric motor power, kW |
0.75 |
|
Power supply parameters |
400V ± 10%, 3 Ph, 50Hz ± 1 |
|
Balancing system |
PB-02M |
|
Overall machine dimensions (length x width x height), mm |
1460 x 1240 x 1450 |
|
Machine weight, kg |
300 |
- 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.