The right isolating material for your isolator depends on a system’s ambient conditions and loads. For example, although a high damping solution would provide more control in the region of resonance, isolation performance at higher disturbing frequencies will suffer due to the higher force generated by the damping element. Rubber isolators with increased damping often suffer from high dynamic stiffness, making it difficult to account for the varying performance with varying frequency when selecting the isolator.
Contact us to discuss your requirements of metal rubber damper. Our experienced sales team can help you identify the options that best suit your needs.
Wire rope isolators simultaneously reduce vibration and shock levels, making them highly cost-effective. However, the right isolator depends on the nature of your application.
Here are seven important factors for choosing the correct isolator.
It’s important to know your equipment’s unique requirements before choosing an isolator. Some key specifications to keep in mind include:
Where your equipment is located and the kind of structural support it has can impact which isolator is right for your system. Is your equipment located in the basement or on the roof? Is it mounted on concrete slabs, or do you have rubber mounts? Can the isolator fit into the space without problems? These questions are key considerations for determining which isolator to use.
All types and directions of vibration should be considered. Equipment and environments often generate vibration in multiple directions simultaneously. For example, the rotational frequency forces and couples resulting from reciprocating masses may need to be considered when deciding which isolator is best for your system. These factors directly determine your system’s isolation requirements.
For instance, it’s important to know whether you are trying to isolate vertical or horizontal vibration. The isolator you choose must be able to handle a load in that direction. This specification will significantly narrow down your list of possible isolators.
The environmental factors that will affect the isolator are extremely important considerations for determining the best isolator for your application.
Temperature is the most important environmental factor because elastomeric isolators tend to perform differently in response to different temperatures. In general, elastomeric materials stiffen in lower temperatures and soften at high temperatures. The extent to which this fluctuation affects isolator performance will vary depending on the chosen material.
Fluid exposure is another important factor to consider, if applicable. The level of fluid exposure can impact your isolator, so determine whether your isolator will experience occasional splashes or full immersion.
Your equipment’s installation type is important for choosing the right isolator. A stationary device will usually require a much simpler solution than a mobile one.
For example, a moving vehicle experiences significantly more intense vibration than a stationary vibrating machine in a factory. A captive isolator would be strongly recommended to keep the system intact even when driving over harsh terrain.
The type of building as well as its intended use can significantly impact which isolator is right for you. Different types of buildings have different isolation requirements based on their purpose — for example, a manufacturing plant will have significantly different requirements from a hospital.
Consider how critical a quiet or reduced-vibration environment is for your setting. Will employees be in direct contact with vibrating equipment? Would noise affect customers or patients? Keep these questions in mind as you search for the right model.
Consider any unique characteristics of your system, such as:
Investing in a custom isolation solution can be advantageous for your application because it can address all the unique requirements of your system without sacrificing performance and quality.
As a leading specialist in rubber vibration mounts, we offer our extensive expertise using a step by step guide to help you choose the correct rubber mounts. Read on to read our easy to follow guide to choosing the best anti-vibration mount to suit you.
Anti-vibration mounts are fastened to machines to eliminate vibration and noise. Machinery vibration from equipment can be transferred to the supporting structure and travel large distances to be emitted as noise elsewhere in a building or structure. The mounts are typically made of rubber or a combination of rubber and other materials. Rubber vibration mounts are particularly effective in preventing the transfer of vibrations that machines generate.
Anti-vibration mounts have excellent shock absorption and vibration dampening properties. Pieces of equipment and machinery subjected to noise, shocks and vibrations can be extremely damaged, affecting their lifespan, efficiency and safety. An increased risk of damage can often lead to more frequent repairs and replacements, increasing costs for the company or individual. With this in mind, it’s not surprising that these mounts are so widely used, found in industries ranging from the defence sector to renewable energy and power generation.
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The larger the total weight, the larger the mountings or, the higher the number of mountings needed to reduce the machine vibrations.
For example, if the machinery weighs 340 kg, the equipment would require rubber mounts with a weight of 85 kg each if four mounts were purchased to distribute the weight evenly. Check the centre of gravity to ensure an even distribution of load as different mounts may be required in different locations.
Calculate the normal running speed of the machinery, referred to as the forcing frequency and also the lowest operating speed (normally at idle).
Static deflection is simply the amount that a vibration dampening mount compresses under the weight of the equipment. The more static deflection, the more work the mount has to do. For example, if a spring is 10 cm high when unloaded and compresses to 9 cm when carrying the weight of the equipment, the static deflection is 1 cm. This is how static deflection is calculated.
Take into account specific application requirements and the reduction in vibration required. Graphs showing vibration isolation against deflection can be used to determine the levels of vibration reduction – please contact us for guidance or further details.
Rubber vibration isolation mounts have several benefits and offer great overall value for money. They not only serve to protect the machinery by reducing the impact of machines power but also benefit the life of equipment, vehicles and structures. Without rubber vibration mounts on the machinery, the sheer impact of the vibrations can cause weakening and even result in failure. It is, therefore, crucial to protect not only your equipment but also the well-being of the workers using the machinery with suitable mountings. Vibration damping mounts are easy to install and are available in a variety of sizes, designs and load capabilities.
By utilising the correct type of mount, you can increase the lifespan of machinery whilst reducing the adverse effects of vibration, noise and shock. GMT design, manufacture and supply a wide variety of specialised mounts, offering both stock and custom solutions for a multitude of industrial applications:
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isolators work to reduce any noise transmitted outwards from the machine (active). Isolators can also reduce the number of vibrations travelling to the machine from an external source such as its foundations (passive).Vibration isolators have many applications, such as in machinery for the food and pharmaceutical industries. Specific examples of use include heating and ventilation equipment, fans and power generators.
Unlike vibration isolators, rubber mountings can provide vibration and shock protection in three separate directions. They also provide high levels of resistance to grease and oil, making them a popular choice in both the automotive and marine industry. Rubber vibration mounts are often found in both engines and generators.
Corrosion-resistant and completely manufactured from stainless steel, our specialist selection of wire rope mounts are designed to withstand the toughest environments. They isolate shock and vibrations from all directions and offer a maintenance-free solution to the most demanding tasks.
This resilience makes our range of wire rope mounts ideal for military use, certified to standards MIL-STD-167 for vibration, MIL-STD-810 for environmental conditions and MIL-S-901 for shock. They can be found in rough terrain vehicles, aircraft and vehicle carriers.
Conical mounts are also referred to as rubber cone mounts. With the correct washers, these mounts are suited to both compression and shear loadings. Featuring a failsafe capacity and a high load capacity, they are designed to suit mobile applications for the automotive, commercial vehicle and marine industries.
Machine feet work to reduce vibrations whilst dampening shock loads. With the option of rebound control and a variety of rubber hardness options to suit each application, it isn’t difficult to see why machine feet are used so extensively in industries such as renewable energy, power generation and agriculture and forestry. Common applications include marine mountings, engine mountings and generator mountings.
As a leading specialist in rubber vibration mounts, we have a number of trusted advisers who can help you with finding the best vibration isolation mounts to suit your requirements. If you do need further guidance regarding any of our specialist anti-vibration mountings or to enquire about our bespoke service, please don’t hesitate to get in touch today.
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