Get the right vibration and shock isolation for your equipment

Wherever there is a working equipment or machinery there are vibrations. They may appear harmless to a visitor or may go unnoticed by the people around depending on the intensity and noise generated. The vibrations are however very harmful to your machines and infrastructure. The surrounding equipment and supports also have their own natural frequency of vibration. The vibrations from a working machine are transmitted to the support causing them to vibrate sympathetically. The phenomenon of resonance occurs when the sympathetic vibration frequency matches the natural frequency of the support infrastructure. A loud noise is produced and the supports may vibrate violently causing damage. Thus, it is essential to go in for rubber vibration isolators in order to safeguard your equipment and machines.

  • The rubber vibration isolators are used to limit the amount of vibration energy transfer to the supports
  • The products are suitable for both stationary and dynamic applications.
  • Choice of size, application, and load bearing capacities are available in the product range.

Mount the equipment: The rubber isolation mounts have the elastomer element, which is responsible for the damping of vibrations. The mechanical energy is absorbed by the rubber vibration damper and dissipated in the form of low-level heat. The amount of damping is dependent on a number of factors like the frequency of vibration, weight of the equipment, and the surface area. The selection of the rubber mounts for vibration has to be done carefully by taking into consideration all the contributing factors.

Shapes and types: There are a variety of shapes and sizes available for the rubber vibration isolators and the selection is based on the application requirements. The shapes include cylindrical, hexagonal, and two-piece etc. In addition to the shape, the rubber isolation mounts are available as center metal bonded type and grommet type etc. to name a few. For applications where the equipment is to be suspended from the ceiling, the spring hanger mount vibration isolators are used.

Suspension of equipment: For the HVAC equipment, ducting, and pipes extensive use of spring hangers is done. The spring provides the deflection to take care of the load while the elastomer element provides the vibration damping. The suspended equipment and the support structure are isolated from each other by virtue of the elastomer which does not permit metal to metal contact. The spring hanger supports are used for ease of mounting. The air conditioning units which generate a lot of vibrations when the compressor works can be mounted on the rooftops by using the rubber isolation mounts while the entire ducting in the building can be suspended from the ceilings or support structure using the spring hangers.

Shock Vibrations: When there is an explosion or an earthquake strike, a shock pulse may be generated which results from a sudden acceleration. This form of shock vibration is highly destructive and damaging. Since an earthquake or a terrorist strike is not a routine phenomenon, it used to be ignored earlier. However, as people are becoming more aware they are concerned about seismic restraints and shock vibration control as well. The shock isolators are now being used extensively for the protection of buildings and sensitive high-cost equipment. They are highly recommended for vehicles used by the armed forces on land, sea and in air. The poor road conditions and situations arising out of collisions are “no match” for the shock isolators. Similarly, they are effective in turbulence, rough landings, high-velocity winds and sea storms.

Shackle mounts with an elastomer element between the metal plates are used as an effective anti-vibration product. The shock impacts are suitably absorbed by the rubber vibration damper in tough conditions. A wide variety of shackle mounts is available in varying shapes and sizes. These include the mounting plate and threaded stud type, square plate with corner holes type, and cap plates with elastomer type.

Andre HVAC International Inc. entered the anti-vibration arena way back in the year 2003. From a modest beginning then, AHI is present today in the majority of the anti-vibration products available in the market. The hallmark has been the consistent quality and customer service. The firm provides assistance to its clients on the various aspects of vibration control at the design stage itself. The customers also find AHI to be a one-stop solution for their anti-vibration needs because of the wide variety of products and selection support documentation. Whether it is a rubber isolation mount or a spring hanger, you can be almost sure of finding the suitable type at AHI Inc.

 

Get rid of the vibrations with wire rope isolators and rubber mounts

The vibration and noise emitting from the machines and equipment in operation may appear to be harmless on the surface. The people may get perturbed by the noise but may get used to working in the noisy industrial environment over a period of time. However, vibration and noise are the most destructive agents in the industrial environment and their effects are known in the form of machine breakdowns, fatigue failures, and health deterioration in human beings. By the time we realize these damages it is already too late. Products in the form of vibration wire rope isolators and rubber vibration dampening mounts are available today to stem the vibrations and prevent them from causing damage. Let us look at these products.

Wire cable isolators: The vibration isolation wire rope plays the crucial role in the selection of the right kind of isolator for the equipment. If you choose the right wire

Wire cable isolators

Wire cable isolators

characteristics like the wire diameter, number of strands, wire length, wire twist, and the number of strands per section you can get the wire isolator that is most suited for your requirement. Sufficient literature is available onsite to help you make this choice. It is right to call them as wire rope insulators as they shield the equipment from the harmful effects of vibration. As a passive vibration insulation system, the wire isolators require no maintenance, occupy little space, and perform even in changing temperature conditions and harsh environments.

The benefits of the wire rope isolators can be summarized as:

  • Solid metallic build
  • Fail safe design
  • No maintenance; fit and forget
  • Low-frequency vibration isolation
  • Large operating temperature range from -130oC to 350oC

Rubber mounts and isolators: The rubber mounts for vibrations are crucial components in the machinery and equipment, and help in dampening the noise levels and vibrations while safeguarding the sensitive parts from the impact of the external vibrations.

Rubber mounts with studs: These types of rubber vibration absorbers are compact and highly effective in applications like compressors, pumps, motors, generators, and air conditioners. The stud type rubber vibration dampers can be used for load applications in both compression and shear.

Rubber shock mounts: The shock mount type rubber vibration isolator is designed to absorb shock for static equipment. Another product in the rubber vibration isolation mounts category is suitable for the marine application such as propulsion engines and diesel generator sets where damping of low frequencies is required.

Rubber vibration bushings: The cylindrical metal to rubber bonded bushings are used where shock absorption, noise reduction, and elimination of lubrication is required. Some of the applications include wheel suspensions and vibratory feeders.

As a leading rubber mount manufacturer, Andre HVAC International Inc. has led the way to develop solutions to isolate vibrations and reduce noise over the past 13 years. They not only have a wide range of wire rope ISO mounts and rubber vibration isolation mounts but also partner with you in developing a new application or capitalizing on their existing technology. You can be sure of finding the answer to your vibration damping needs from them.