Wire rope isolators proved right for vibration and noise reduction

Look at any running equipment, plant, and machinery in the industrial environment and you will find them under the influence of vibration and shock. Irrespective of the fact that it is

anti-vibration mount wire rope isolator

anti-vibration mount wire rope isolator

mechanical, electrical or electronic equipment, vibration and shock tend to shorten the life of the machinery. It is not surprising to find equipment that has been withdrawn from service due to the severe impact of vibrations. A combination of repeated load or fatigue can be detrimental to the health of the machine. Under such circumstances, it is advisable to go in for suitable anti-vibration products like the wire rope vibration isolator.

Noise reduction: Traditionally, the wire rope vibration mounts are used for providing insulation from low-frequency vibrations. The wire vibration isolators are also frequently used for shock isolation applications. Recently a lot of interest has been generated in the use of wire rope vibration isolators for noise reduction within the audible frequency domain. The important parameter here is the stiffness of the wire rope. Thus, going against the popular belief, the wire rope vibration isolator is also suitable for abatement of noise application.

Damping and amplitude: The anti-vibration mount wire rope isolators provide quite a high damping just like rubber isolators. The separate threads of the twisted wire rope generate enough friction and are responsible for the phenomenon. The stiffness is strongly dependent on the frequency but is independent with respect to the vibration amplitudes, within the audible frequency range. The wire rope shock isolators depict a low stiffness for significantly high amplitudes in low-frequency applications. Thus, the behavioral patterns of the wire rope shock mounts are suited for vibration and shock isolation besides noise reduction in the audible frequency domain.

Weather resistance: The wire rope vibration mounts are capable of performing in harsh Tackling vibration, shock, and noise through wire rope mountsconditions. While they operate in a very wide temperature range, they can also withstand corrosion. The material used for the wire rope is stainless steel while the holding bracket is of aluminum and both are almost inert to the corrosive elements like moisture, industrial grease and oil, the ozone layer, and nuclear radiation.

 Characteristics of wire rope isolators:

  • Solid, metallic build
  • Low frequency, highly damped vibration isolation
  • Substantial shock attenuation
  • Can withstand temperatures from -200°F to +650°F
  • Adequately safe application
  • Does not require maintenance

Typical Applications of cable isolators:

  • Avionics and onboard electronics
  • Marine equipment and electronics
  • Telecom and Mobile equipment
  • Disc drives and computers
  • Generators, blowers and ceiling fans
  • Compressors, Motors and Pumps
  • Medical and lab Equipment

Features:  Each cable isolator comes with softened non-linear stiffness. The maximum dynamic displacement is over 70 per cent of the space taken up by the mount. As there is Passive vibration solutions through wire rope isolatorsan increase in displacement the dynamic stiffness of the wire isolator decreases. When you buy wire rope isolators the key lies in the selection of the wire rope. The important features are wire length, number of strands, wire diameter, wire rope twist and number of wire ropes per section. The wire rope shock isolators are capable of providing a damping of around 15 per cent. The wire rope vibration isolators become stiffer as you go in for the maximizing the damping by using larger diameter loops. The basic framework of the cable isolators consists of a heavy duty interwoven stainless steel wire rope and retaining bars made of aluminum alloy. The loops of the wire rope are held tightly by the retaining bars to form a solid build.

Limited space applications: The circular wire rope isolators occupy very little space and are passive in nature. Wherever there is a limitation of space the circular wire vibration isolators are the best bet. The circular wire rope isolators are definitely smaller in size but depict the properties similar to normal wire rope mounts. They also do not require any maintenance and can be termed as “Fit and Forget.”

Andre HVAC International Inc. brings to you the wire rope isolators which possess environmental stability and are suited for the applications that demand the highest level of quality, performance and ruggedness. The AHI wire rope shock mounts have a superior logo1.pngresilience. The systems have the ability and strength to restrain load under unfavorable conditions. They rapidly return to the normal operating position after repeated shocks. The wire rope isolators diminish the shock with minimum dynamic travel. Large deflections are required to bring the impacts of heavy shock loads within acceptable limits. The Andre HVAC wire isolators are having a sturdy design which does buckle under shock loads but does not deform permanently or bottom out.

The compact wire rope isolator unleashed!

The electronic components fitted in machines and panels are very precise and sensitive in nature. When the electronic equipment runs, there are parts that produce the hum and vibrations which can cause serious damage to the surrounding components. The first

anti-vibration mount wire rope isolator

anti-vibration mount wire rope isolator

requirement of the vibration damping needs was met with the elastomer pads. However, the rubber vibration mounts were unable to perform due to temperature variations. Despite having heat dissipation devices installed the electronic components get heated to high temperatures.  The vibration pad was ineffective in the concurrent shock and vibration application. The fans used for cooling the electronic devices were also producing vibrations. The anti-vibration mount wire rope isolators were too big for the electronic applications and hence an alternative was worked out. That is when the circular cable isolators were born. The characteristics: The circular cable isolators have a homogenous design and a single point installation. Thus, they provide multi-axis isolation which is quite consistent. Given the small size, the compact wire rope isolator is well suited for the separation of key fundamental components rather than the complete system. Not only are the compact

compact wire rope isolator

compact wire rope isolator

isolators economical but also are suitable for high-performance design systems. As far as the maximum dynamic displacement is concerned, it utilises 70 per cent of the space taken up by the circular cable isolators. The dynamic stiffness decreases with the increase in displacement. The resilience is shown by the cable isolator in the case of a shock loading. Due to the impact loading the shock isolator does buckle but does not get permanently deformed. It is able to spring back into position once the shock load is removed. The construction: The cable isolators are made up of stainless steel 304 grade wire rope and suitable aluminium alloy retaining bars with T6 heat treatment. The strands of high tensile steel wire are interwoven to construct the vibration isolation wire rope. The

vibration isolation wire rope

vibration isolation wire rope

construction gives the circular cable isolators the desired strength to withstand the shock load and depict resilience. The metallic constituents are unaffected by ozone, chemicals and oils. This is because of the basic inert nature of the raw material used in the construction. In fact, the circular cable isolators can withstand environmentally unfriendly and harsh requirement also.  They also withstand extreme temperatures from -100oC and going up to 250oC. The temperature range covers the majority of applications in the industry today. The load capacity is from 5 to 35 KGs and well suited to the electronic industry. The products also conform to a number of military standards and industry specifications. Additional features: The circular cable isolators depict non-linear attributes in the stiffness characteristics. As compared to the larger shock deflections, the smaller deviations are normally linked with vibration damping which has a different spring rate. The cable isolator’s vibration damping is to the tune of 5 to 15% depending on the size and input level. Since, the compact wire rope isolator is capable of operating on more than one axis; it can withstand compression load, 45o compression load as well as the shear load very easily. The versatility of the design allows the compact wire rope isolators to be used in a number of applications. In the electronic industry, they used for CD-ROM drives and disk drives. These devices have rotating parts which generate vibrations and humming noise. The equipment like centrifuges and medical ventilators make use of the compact design. The varying load and speeds of rotation are well absorbed by the anti-vibration mount wire rope isolators. Then, there are a variety of applications like avionics, sound systems, video displays, audio-visual combinations, small motors and pumps, sensitive lab equipment and electronic devices where the circular wire isolators are deployed. People buy wire rope isolators as they are a versatile piece of equipment offering vibration and shock mitigation solutions. Andre HVAC International Inc. has a number of anti-vibration mount wire rope isolators, circular cable isolators and vibration damping systems in its product portfolio. The shock isolators are well suited for electronic devices and sensitive equipment. As the leading compact wire rope isolator supplier in Canada, they cater to a large number of electronic industry applications and defense requirements. They made a modest beginning in 2003 but with the recent expansions the product range; AHI has a global reach now. The products with technically advanced features can take care of all your anti-vibration requirements. The product selection process has been made easy with the availability of catalogues and tables available on the website. AHI also helps its clients with customized solutions.