Fan or Pump Active Ring Balancers

Our balancing systems have been installed in a number of industries including:

1. Cement
2. Chemical
3. Foundries
4. Glass
5. Paper
6. Steel
7. Utilities
8. Waste Water

The use of our balancing systems has helped to improve our customer's reliability, production capability and quality, while reducing maintenance and manufacturing costs.

Features & Benefits

1. Improved Production Uptime
2. Reduces unplanned downtime/emergencies due to balance related vibration problems
3. Extends planned maintenance intervals
4. Reduces start-up time
5. Optimisation of Equipment Life
6. Compensates for variable balance conditions: RPM, thermal changes, and material build-up
7. Eliminates multiple starts by easing equipment through criticals during start-up and shutdown
8. Reduces wear-and-tear on equipment
9. Maximise Asset Availability
10. Continuous monitoring/diagnostics
11. Proactive analysis of potential balance problems
12. Remote analysis capabilities

Fan Product Information

Balancers for Centrifugal Induced Draft/Forced Draft and Axial-Van Fans
Balancing systems are comprised of sensors, a controller and one or more balancers that make trim balance corrections to reduce fan vibration while the fan is running, at any operating speed or load. The system is able to compensate for variable balance conditions due to material build-up, temperature variations and changing process conditions. Balance corrections are made automatically or manually, minimising vibration caused by unbalance in seconds.

Features & Benefits

Cost Effective – reduces downtime and increases productivity. Trim balances equipment while operating, without a forced shutdown. Eliminates multiple starts and stops necessary for manual balance correction. Provides rapid payback on balancing system and installation cost.

Efficient – optimizes equipment life (bearings, motors, seals, etc.).

Adaptable – fits with existing condition monitoring systems. Operates in either automatic or manual modes.

Versatile – maximizes asset availability.

Reliable – performs continuous monitoring and diagnostics, on-site or remote. Eliminates unscheduled maintenance.

Fail-Safe – maintains last correction, even if power is lost.

How the Balancing System Works

One or more balancers are permanently fixed on the rotating shaft, and each balancer is surrounded by a stationary coil used to transmit power into the balancer(s). Sensors monitor vibration levels and transmit information to the controller. When vibration levels exceed a preset high-limit, the controller signals the coil(s) to pulse power to the balancer(s) to make a balance correction. The correction is made by the repositioning of two counterweighted rotors relative to each other, located inside the rotating balancer(s). Vibration levels are reduced as the rotors are moved, until the controller senses that vibration levels have dropped below a preset low-limit. The rotors are repositioned in seconds to complete the trim balance correction, while the fan continues operating without a forced shutdown.

RING Balancers for Turbo-Machinery

Our high-speed, turbo-machinery balancers are elegantly simple in operation. Counterweighted rotor assemblies mount permanently at balance planes on the shaft. A smart controller senses vibration and determines the best counterweight position. Rotor assemblies move electro-magnetically to their appointed places, minimising vibration in seconds.

Features & Benefits

1. Balances-corrects multiple planes in seconds while your equipment is running
2. Dramatically reduces equipment startup time
3. Balances automatically or manually
4. Reduces equipment wear and tear, downtime and maintenance costs
5. Diagnoses equipment vibration response
6. Makes different corrections above and below critical speeds
7. Retrofits in coupling planes where field trim balancing often takes place
8. Accesses vibration inputs from existing monitoring equipment, e.g. Bently Nevada
9. Records all corrections automatically
10. Protects bearings, seals and other components during ramp-up

The Controller

The EM-2000 controller automatically controls and tracks all balancer operation. It senses vibration, determines the optimum balance corrections, and sends signals to the balancer. The controller can also interface to the machine control using either PLC I/O or an RS232 serial port.

The Balancing Ring

The operation is elegantly simple. The patented counterweight rotor assemblies mount permanently to the spindle shaft or rear of the chuck. A coil assembly mounts to the spindle housing. When a balance correction is required, power pulses sent to the coils electromagnetically step the rotors to the desired position in just a few seconds.

Non-Contact Power Transfer

Since the coils induce a magnetic field across an air gap, contact is not needed between the rotating and stationary parts. Therefore, there are no traditional motors, gears, slip rings or other wear parts — it is virtually maintenance-free!

The Software

With our Control Interface for Windows™ software, you'll have simple point-and-click control of the balancing system and manual control of the counterweight positions. This easy-to-use software provides detailed data and graphical displays that give you real-time information about your equipment and its vibration characteristics. You'll have spindle speed, synchronous vibration magnitude, phase angle, counterweight positions, alarm and fault signals right on your desktop.

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