On-Site Fan & Blower Balancing

We offer complete maintenance, troubleshooting, and repair services on most types of industrial fans. We have the knowledge and experience required to troubleshoot and correct all fan problems. We work with fan manufacturers and reps when necessary to provide innovative solutions and quick response to the needs of customers in a wide array of industries.

All fans require regular maintenance to give optimal and dependable service. Proper lubrication and periodic inspection will increase the reliability of your fan and is especially important if a failure can shut down your operation.

EMX Industrial Repair’s state of the art Field Balancing Systems are designed to perform measurements of vibrations and calculations within the existing assembly. This allows machinery to be left in place, on-site, at your facility, which reduces overall downtime and associated labor costs, and at times may improve balancing accuracy, as the rotating component is spun on it’s originally designed axis and bearing housings. Some examples of machinery balanced in-place, are typically Fans, Blowers and Turbines, because of the designed rotor access enables the ability to add or remove weights to rotating element. The balancing application measures the running speed (1X) filtered vibration amplitude and relative phase with a reference mark in the rotor to allow full balancing correction. All Balancing results will be performed to the level specified by the customer. In the absence of a requested level, dynamic balancing to balance quality grade G2.5 (ISO 1940/1) should enable the machine to meet final vibration limits. A Balance weight or weights are secured to rotor and will be located so that they do not interfere with other machine components. Good documentation is important in balancing. It is a record of who performed the balancing, when it was done and how well it was done. All work is electronically documented and a machine balancing report, with balancing data, as well as original and final results is generated upon completion of job.

Dynamic Balancing

EMX Electro-Mechanical’s state of the art Balancing Systems are designed to perform measurements of vibrations and calculations within horizontal shop balancing machines as well as, in the field. The application measures the running speed (1X) filtered vibration amplitude and relative phase with a reference mark in the rotor to allow full balancing correction. All Dynamic Balancing results will be performed to the level specified by the customer. In the absence of a requested level, dynamic balancing to balance quality grade G2.5 (ISO 1940/1) should enable the machine to meet final vibration limits. A Balance weight or weights are secured to rotor and will be located so that they do not interfere with other machine components.

Why Balance?

Rotating components experience significant quality and performance improvements when balanced. Balancing is the process of aligning a principal inertia axis with the geometric axis of rotation through the addition or removal of material. By doing so, the centrifugal forces are reduced, minimizing vibration, noise and associated wear. Virtually all rotating components experience significant improvements when balanced. Balancing can contribute to more efficient, more powerful,quieter, smoother running and longer lasting equipment and is one of the most cost effective means of providing value to our customer.

Think of imbalance as an imaginary heavy spot on a rotating shaft. This heavy spot is pulling the shaft and the center of rotation of the center line off the shaft on every rotation. The force of the imbalance is transferred to the bearing and case of the machine causing heat, friction, lubrication failure, and bearing faults. Extreme imbalance can cause looseness in the machine train. There are many reasons for imbalance to be present in a rotor. Deposit and build-up causes imbalance as deposits of dirt and grime build up on a rotor and its parts over time. The build-up of these deposits may be gradual, but not necessarily equal and can cause an imbalance condition. While the build-up may be gradual, the deposits will break away at an uneven rate causing a more serious imbalance. This can be especially true of fan blades. Fan blades will tend to collect deposits in a linear fashion, but the deposits will not come off at the same rate. They will come off in unequal pieces causing serious imbalance. Make cleaning of rotor, rotating parts and fan blades a regular part of your scheduled inspection and preventative maintenance. Rotors can also be damaged when exposed to abrasive or corrosive materials. This will cause uneven wear and an imbalance condition. When you choose products, make sure their rotors are made from materials that can withstand corrosion and abrasion over long periods of time. Eccentricity exists when the true or geometric centerline of a part does not coincide with its rotating center. This can be a manufacturing defect. Eccentricity can also be caused by out of roundness of the shaft, variations in electrical properties or uneven heating.