You need to pick anti vibration mounting that fits your equipment. It should match your equipment’s needs, vibration type, and where it is placed. If you pick mounts that hold the right weight and absorb vibration, you stop damage to machine parts. You also stop loss of production and keep operators comfortable. For example, if your equipment weighs 400 lbs and uses four anti-vibration mounts, each mount must hold 100 lbs. Check if the vibration mount is good for your use. Think about things like temperature and humidity. Good anti-vibration mounting helps your equipment last longer and work better.
Equipment Weight | Number of Mounts | Load per Mount |
|---|---|---|
400 lbs | 4 | 100 lbs |
Damage to machine parts
Loosening of screws and bolts
Loss of production
Transmitted noise
Damage to floors
Malfunctions with sensitive equipment
Operator discomfort
Shortened lifespan of the machine
Key Takeaways
Pick anti-vibration mounts that fit your equipment’s weight and vibration type. This helps stop damage and makes your equipment work better.
Find the right places to put the mounts. This keeps things balanced and stable. It also lowers noise and vibration.
Look at how your equipment shakes to pick the best isolator. Use tools to check how often and how strong it shakes.
Think about things like heat and wetness when you pick mounts. This makes sure they last long and work well.
Check your anti-vibration mounts often for damage. This keeps your equipment working well and saves money on repairs.
Equipment Specs for Anti Vibration Mounting
Determine Equipment Weight
You must know how much your equipment weighs. First, check the main machine’s weight. Then add any extra parts, like fuel tanks or control panels. This helps you not overload or underload the mounts. If you do, the mounts might break or not work well.
Find out the total weight of your equipment.
Split the weight by the number of anti-vibration mounts you will use.
Make sure each mount can hold its part of the weight.
If the weight is not even, you may need different mounts in some places. Always check that each mount holds the right amount at its spot. This keeps your equipment steady and helps the anti-vibration system work better.
Tip: If all mounts hold the same weight, vibration is less and your equipment lasts longer.
Identify Mounting Points
Finding the right spots for mounting is very important. Look for places that support the center of gravity. The center of gravity should be below the top of the foundation. It should also be within 5% of the smallest side. This keeps your equipment balanced and stops it from moving too much.
Recommended Practice | Description |
|---|---|
Design for allowable deflection | Aim for best results with free-standing mounts. |
Mass ratio of foundation | Use a 1.5:1 ratio for important equipment. |
Flexible connections | Make sure air, water, and electric links can bend. |
Center of gravity | Keep it below the top and within 5% of the smallest side. |
Soil load verification | Check the ground and lower the load for moving equipment. |
Vibration analysis | Test vibration while the equipment is running. |
Compliance with building codes | Follow rules for concrete and steel loads. |
Anchor bolt placement | Put bolts at least 12 inches from the edge or as deep as they go. |
Where you put the mounts changes how well they work. Good spots can lower vibration and noise. Bad spots can make vibration worse, especially if you have more than one machine. Always check and move the mounts if needed to get the best results.
Analyze Vibration Isolation Needs
Assess Vibration Profile
You should know how your equipment shakes before picking a vibration isolator. First, measure how often and how much it vibrates. Use tools like digital frequency meters or oscilloscopes to check the frequency. Vibration analyzers with FFT also help you find the frequency. To see how much it moves, use linear displacement sensors or laser displacement sensors. Accelerometers can also show how much your equipment moves. These tools help you learn how fast and how far your equipment shakes.
Measurement Type | Tools/Methods | Description |
|---|---|---|
Amplitude | Linear Displacement Sensors | Find movement and give digital numbers. |
Laser Displacement Sensors | Measure small moves without touching the machine. | |
Accelerometer Data Interpretation | Figure out amplitude from sensor signals. | |
Frequency | Digital Frequency Meters | Show vibration frequency right away. |
Oscilloscopes | Show wave shapes for finding frequency. | |
Vibration Analyzers with FFT | Break signals into frequencies for checking. |
Machines in factories can shake in different ways. Synchronous vibrations move at the same speed as the shaft. Sub-synchronous vibrations happen slower than the shaft speed. Harmonic vibrations happen at set times based on speed or natural frequency. Non-synchronous vibrations do not match the shaft speed. These can come from natural frequency or electrical problems.
Vibration Type | Description | Causes |
|---|---|---|
Synchronous Vibrations | Move at shaft speed | Unbalanced parts or misalignment |
Sub-Synchronous Vibrations | Slower than shaft speed | Rubbing, gear trouble, or oil problems |
Harmonic Vibrations | Happen at set times based on speed | Blade passing or rotor damage |
Non-Synchronous Vibrations | Do not match shaft speed | Natural frequency or electrical issues |
Tip: Always check vibration while the machine is running for best results.
Check Static Deflection and Durometer
You need to check how much the anti-vibration mount squishes under weight. This is called static deflection. It helps you know the natural frequency of the isolator. Picking mounts with the right static deflection makes vibration isolation work better. How much vibration gets through depends on both natural frequency and static deflection.
The natural frequency comes from static deflection.
Matching static deflection to your machine helps isolation.
Always pick mounts with the right static deflection for best results.
Durometer rating tells you how hard or soft the mount is. A lower durometer means it absorbs more vibration but is not as strong against hits. A higher durometer is stiffer and can take bigger hits.
Durometer Rating | Vibration Damping Performance | Impact Load Resistance |
|---|---|---|
40 Shore A | Absorbs less vibration | Handles the smallest hits |
55 Shore A | Good balance of softness and strength | Handles medium hits |
70 Shore A | Very stiff, absorbs less vibration | Handles big hits |
You must balance how much vibration is absorbed and how strong the mount is. Pick mounts with the right durometer for your machine and where it is used. This helps your equipment stay safe and lowers vibration.
Environment and Anti-Vibration Mount Selection
Evaluate Operating Conditions
You need to think about where you will put your anti-vibration mounts. The place you choose can change how well they work. Hot weather, wet air, and salty air can hurt vibration dampeners. If your equipment is outside or in a humid factory, the mounts may wear out faster. Water can get inside and make the mounts not last as long. Salt in the air, like near the sea, can make the mounts rust and break.
Environmental Condition | Impact on Anti-Vibration Mounts |
|---|---|
Temperature | Changes how the material works |
Moisture Levels | Makes mounts wear out faster |
Salt Exposure | Can cause rust and damage |
You should always check the temperature and wetness where you install mounts. This helps you pick mounts that last longer and keep your equipment safe.
Tip: A cool, dry place helps your anti-vibration mounts last longer.
Consider Chemical and Temperature Exposure
Chemicals like oil, grease, and cleaners can break anti-vibration mounts. Sunlight and very hot weather can also hurt them. If you pick the wrong material, the mounts may not last long. You need to know what your equipment will face every day.
Type of Exposure | Effect on Materials |
|---|---|
Excessive Heat | Makes mounts break down |
Oil | Makes mounts break down |
Chemicals | Makes mounts break down |
UV Radiation | Makes mounts break down |
Different rubber types handle heat in different ways. General rubber works from -30°C to 80°C for a long time. NBR rubber can go up to 120°C, and silicone rubber can take even more heat.
If you pick the right material, the mount lasts longer. Good vibration isolation and the right dampeners keep your equipment safe and working. You also stop your anti-vibration mount from breaking too soon.
Choose the Right Anti-Vibration Mount
Select Mount Type and Material
You need to choose the right anti-vibration mount for your equipment. Start by looking at the main types of anti-vibration mounts. Each type works best for different machines and vibration problems.
Rubber Mountings: Use these for light to medium loads. They last a long time and resist wear.
Springs Isolators: Pick these for heavy-duty machines. They absorb high-frequency vibrations well.
Hangers: Use hangers for equipment that hangs, like fans or HVAC units.
Rubber Pads and Mats: These work for shock force, such as forging hammers. They are easy to install.
Spring Viscous Damper System: Choose this system for complex vibration issues. It combines springs and dampers for critical jobs.
You must compare the materials used in anti-vibration mounts. Rubber, metal, and composite mounts each have special features.
Type | Vibration Isolation Efficiency | Key Features |
|---|---|---|
Rubber | High (85-95%) | Damps vibration well, simple design |
Rubber-Metal | Multi-directional | Combines rubber and metal, high damping |
Composite | Varies | Resists corrosion, fits many uses |
Rubber mounts give you strong vibration isolation efficiency. Rubber-metal mounts work in many directions and handle tough jobs. Composite mounts resist rust and work in wet or salty places.
When you select anti vibration mounts, check these things:
The weight of your machine
The speed (RPM) of your machine
How much the mount will squish under load (static deflection)
The type of vibration (radial or low frequency)
Tip: If you want a suitable anti-vibration mount for your equipment, YNF Rubber offers many choices for different needs.
Calculate Number and Placement
You must figure out how many anti-vibration mounts you need and where to put them. The number of mounts affects how well the weight spreads out and how strong the vibration isolation is.
Heavy equipment needs more mounts to spread the weight.
More mounting points help balance the load and improve anti-vibration.
The center of gravity changes how the weight sits on each mount.
To find the weight on each mount, use these formulas:
Weight on each front mount = W × b / 2 × (a + b)
Weight on each rear mount = W × a / 2 × (a + b)
W = Total weight of the equipment
a = Distance from front mount to center of gravity
b = Distance from rear mount to center of gravity
Place the mounts close to the center of gravity and at points where vibration is lowest. This helps you get even load distribution and better anti-vibration results.
Put mounts the same distance from the center of gravity.
Use mounts with high damping if you cannot use a heavy concrete base.
You should check vibration isolation efficiency charts before you choose the right anti-vibration mount. These charts help you match your equipment’s speed and weight to the best mount.
Find your equipment’s lowest speed (RPM).
Draw a line up to the needed isolation percentage.
Move sideways to see the static deflection or natural frequency you need.
The natural frequency of the mount matters. If your machine runs close to the mount’s natural frequency, vibration can get worse. Always pick a mount with a natural frequency far from your machine’s speed.
Note: Many people make mistakes when they select anti vibration mounts. They ignore load capacity, miscalculate static deflection, or forget about shock forces. Always check your numbers and think about the environment.
If you follow these steps, you will choose the right anti-vibration mount and keep your equipment safe and steady.
You can make your equipment work better by picking anti-vibration mounts step by step. When you choose mounts that fit your equipment’s weight, how it shakes, and where it is used, you get many good things:
Less noise and less shaking
Machines stay steady and last longer
Fewer problems and lower repair costs
Checking your anti-vibration mounts often helps your machines run safely and do their jobs well. You can learn more from guides like How to select an Anti-Vibration Mount – the basics. and A guide to anti-vibration mounts. If you are not sure what to do, ask vibration isolation experts for help so you do not make mistakes and your equipment works its best.
FAQ
What is the main purpose of anti-vibration mounts?
Anti-vibration mounts help stop machines from shaking and making noise. They keep your equipment safe and your workspace better. These mounts also help machines last longer by stopping too much movement.
How do I know which anti-vibration mount to choose?
First, check how much your equipment weighs. Next, think about what kind of vibration it makes and where you will use it. Look at the material and shape of each mount. If you are not sure, YNF Rubber has many choices for different machines.
Can anti-vibration mounts handle outdoor conditions?
Some anti-vibration mounts can be used outside. You need to pick mounts made from materials that do not get damaged by water, sun, or temperature changes. Always read the product details before putting them outdoors.
How often should I check my anti-vibration mounts?
You should look at your anti-vibration mounts every few months. Check for cracks, worn spots, or loose parts. Checking often helps you find problems early and keeps your equipment working well.
Do anti-vibration mounts reduce noise as well as vibration?
Yes, anti-vibration mounts lower both noise and vibration. Using the right mount makes your equipment quieter and more steady. This helps make your work area nicer.
