Anti-Vibration Mounts And Isolation Feet

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Reduce Vibration, Shock Loads and Structure-Borne Noise

Anti-vibration mounts and feet are isolation supports used to reduce vibration transfer from mechanical equipment into its supporting base. They sit between the machine and the floor, frame or support points, absorbing movement before it spreads into the surrounding construction. Rubber and elastomeric mount types also help damp shock loads, which can reduce noise, limit mechanical wear and support stable equipment operation.


DECIBEL anti-vibration mounts are used under pumps, fans, motors, compressors, generators and production machinery where vibration must be controlled at the source.
Black rubber bumper stop.
Black rubber bumper stop.
Close-up of HVAC unit with vibration dampeners.
Close-up of HVAC unit with vibration dampeners.
Metal HVAC duct suspended from ceiling with vibration isolation mounts.
Metal HVAC duct suspended from ceiling with vibration isolation mounts.
Gray suspended commercial air conditioner with metal rods and nuts.
Gray suspended commercial air conditioner with metal rods and nuts.
Industrial ventilation system with metal ductwork.
Industrial ventilation system with metal ductwork.
Close-up of a white Samsung air conditioner unit with a circular fan grill, mounted on shock absorber feet.
Close-up of a white Samsung air conditioner unit with a circular fan grill, mounted on shock absorber feet.
Vibro-R

A rubber-metal vibration mount designed to reduce medium-frequency vibration generated by rotating machinery and equipment. Its compact construction provides dependable damping while helping minimise transmitted vibration and noise.

€4,78
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Vibro-EM.2
Vibro-EM.2
Vibro-EM.2
Vibro-EM.2
Vibro-EM.2
Vibro-EM.2
Vibro-EM.2
Vibro-EM.2
Vibro-EM.2
Vibro-EM.2
Vibro-EM.2
Vibro-EM.2
Vibro-EM.2
Vibro-EM.2
Vibro-EM.2
Vibro-EM.2
Vibro-EM.2
Vibro-EM.2
Vibro-EM.2
Vibro-EM.2
Vibro-EM.2
Vibro-EM.2
Vibro-EM.2
Vibro-EM.2
Vibro-EM.2
Vibro-EM.2
Vibro-EM.2

An elastomeric vibration mount developed for general machinery isolation across a wide range of industrial applications. It provides effective vibration damping while supporting stable and reliable equipment operation.

€36,26
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Vibro-EM.3
Vibro-EM.3
Vibro-EM.3
Vibro-EM.3
Vibro-EM.3
Vibro-EM.3
Vibro-EM.3
Vibro-EM.3
Vibro-EM.3
Vibro-EM.3
Vibro-EM.3
Vibro-EM.3
Vibro-EM.3
Vibro-EM.3
Vibro-EM.3

A heavy-duty elastomeric mount designed for machinery requiring enhanced vibration damping and load capacity. It helps reduce mechanical stress, structure-borne vibration, and unwanted equipment movement.

€43,63
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Vibro-MPF
Vibro-MPF
Vibro-MPF
Vibro-MPF
Vibro-MPF

A robust elastomeric mount engineered to perform under both compression and shear loading conditions. It delivers effective vibration isolation where machinery generates forces in multiple directions.

€23,21
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Metal vibration isolator with bolt and rubber.
Metal vibration isolator with bolt and rubber.
<tc>Vibro-3D</tc>
<tc>Vibro-3D</tc>
Wall-mounted black speaker with silver bracket.
Wall-mounted black speaker with silver bracket.
Wall-mounted black loudspeaker.
Wall-mounted black loudspeaker.
Industrial pump and motor on vibration isolators.
Industrial pump and motor on vibration isolators.
Black pipe with a gray valve connected to a wall with a silver bracket.
Black pipe with a gray valve connected to a wall with a silver bracket.
Ceiling-mounted metal ductwork with support rods and various utility pipes.
Ceiling-mounted metal ductwork with support rods and various utility pipes.
Black industrial pump and motor mounted on vibration isolators.
Black industrial pump and motor mounted on vibration isolators.
Vibro-3D

A specialised vibration mount designed to provide effective isolation in all three axes of movement. It is ideal for equipment exposed to complex vibration patterns, shock loads, or multi-directional forces.

€64,91
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Vibro-Brick
Vibro-Brick
Vibro-Brick
Vibro-Brick
Vibro-Brick
Vibro-Brick
Vibro-Brick
Vibro-Brick
Vibro-Brick
Vibro-Brick
Vibro-Brick
Vibro-Brick
Vibro-Brick

A suspended vibration isolator developed for equipment mounted above floor level or attached to building structures. It helps reduce vibration transfer through ceilings, pipework, ductwork, and suspended services.

€19,81
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Which Mounts or Feet Are Right for Your Application?

Each anti-vibration mount is developed for a different load range, vibration type and installation condition. Use the table below as a quick selection guide. It connects common equipment requirements with the most suitable DECIBEL option, helping you move from vibration problem to specification faster.

If you are looking for:

Choose:

A versatile anti-vibration mount for pumps, fans, motors, and HVAC equipment

Vibro-R

A rubber-metal mount for demanding industrial or outdoor environments

Vibro-EM.2

Higher load capacity and improved machine stability

Vibro-EM.3

A failsafe mount that combines vibration isolation with equipment restraint

Vibro-MPF

Foundation isolation for heavy machinery and equipment bases

Vibro-Brick

Multi-directional vibration and shock control

Vibro-3D

Common Applications for Elastomeric Vibration Isolators

HVAC, Building Services and Heat Pump Systems

Anti-vibration mounts and feet are used across HVAC systems and building services where rotating equipment creates continuous vibration and operational noise.


They help reduce vibration transfer from pumps, fans, heat pumps and packaged plant into floors, walls, pipework and the surrounding building fabric. Rubber mounts are often useful for medium- and high-frequency vibration because they provide damping as well as support.


Typical applications:

  • Air handling units (AHUs)
  • Ventilation units and fans
  • Pumps and circulation systems
  • Heat pumps
  • Refrigeration equipment
  • Air conditioning systems
  • Rooftop HVAC equipment
  • Building service plant rooms
  • Residential heat pumps
  • Air conditioning condensers
  • Domestic ventilation systems
  • Mechanical service equipment
  • Water treatment systems
  • Commercial HVAC installations

Generators, Rotating Equipment and Critical Infrastructure

Generators, motors and compressors can create vibration that affects equipment stability, bearing wear and structure-borne noise.
 

Anti-vibration feet and mounts help control this movement at the support points while keeping the machine stable during operation. Rubber and elastomeric mounts are useful where damping and shock absorption are needed, especially on equipment exposed to regular start-up forces or changing load conditions.


Typical applications:

  • Generators and generator sets
  • Diesel and gas engines
  • Compressors
  • Blowers and industrial fans
  • Electric motors
  • Pumps and pumping stations
  • Mechanical drives and gearboxes
  • Reciprocating machinery
  • Test benches
  • Data centres
  • Utility and energy facilities
  • Technical rooms and infrastructure installations

Industrial Machinery and Manufacturing Equipment

Anti-vibration mounts support industrial machinery at the base, frame or fixing points where dynamic loads enter the floor.


They help reduce vibration transfer from production equipment while keeping the machine stable during operation. This is useful where shock forces, mechanical stress and limited installation height all need to be managed within a compact support detail.


Typical applications:

  • CNC machines and machining centres
  • Metalworking and fabrication equipment
  • Packaging and processing lines
  • Injection moulding machines
  • Conveyor systems
  • Industrial mixers and agitators
  • Printing and textile machinery
  • Production and assembly equipment
  • Process machinery
  • Workshop and manufacturing equipment

Residential, Commercial and Specialised Equipment

Vibration-damping feet and mounts are used on smaller mechanical systems where vibration can disturb nearby occupied spaces.


They help reduce hum, buzz and structure-borne noise from equipment installed in homes, offices, treatment rooms and light commercial areas. Their compact format also suits applications where access is limited and the support detail must remain simple to install.


Typical applications:

  • Swimming pool pumps
  • Water booster systems
  • Residential HVAC equipment
  • Commercial heat pumps
  • Small generators
  • Home workshop machinery
  • Light commercial mechanical plant
  • Research and laboratory equipment
  • Acoustic enclosures
  • Vibration-sensitive equipment
  • Specialist engineering installations
  • Technical equipment supports

Key Performance Criteria for Anti-Vibration Mounts and Isolation Feet

An anti-vibration mount or foot must match the equipment load and the vibration it needs to control. The criteria below explain what affects real performance, including load capacity, material stiffness, damping behaviour, shock absorption and environmental durability.

Load Capacity

Load capacity is the working load each anti-vibration mount or foot can support while still reducing vibration transfer.


In practice, small equipment supports may work around 8 to 50 daN per point. Heavier machine mounts can sit in the 200 to 500 daN range, while larger spring-based systems may support several hundred kilograms per mounting point. The load must be checked at each support, not only as the total machine weight.
 

If the mount is underloaded, it may stay too stiff to isolate properly. If it is overloaded, excessive compression can reduce movement range, increase stress and shorten service life.
 

The calculation should include the operating weight of the equipment and any dynamic force from start-up or shock loading. 

Rubber Hardness (Shore A)

Rubber hardness applies to elastomeric anti-vibration mounts and is measured on the Shore A scale.


As a guide, 20 to 40 Shore A is usually a softer rubber range, 40 to 60 Shore A is medium hardness, and 60 to 80 Shore A is harder rubber. Softer compounds can give more deflection under lighter loads, while harder compounds give more stability under heavier loads.


The selected hardness must match the real load at each support point. If the rubber is too hard, the mount may transmit vibration. If it is too soft, the equipment can settle, rock or lose alignment.

Vibration Damping Characteristics

Damping describes how well an anti-vibration mount absorbs vibration energy instead of letting movement continue through the support system.


Elastomeric mounts provide inherent damping through the rubber compound. As a guide, rubber and elastomeric isolators may have damping ratios around 0.1 to 0.5, while undamped spring isolators are often below 0.05.


Higher damping can help control resonance, start-up movement and vibration build-up during operation. It is useful for pumps, fans, motors and compressors where equipment stability matters as much as vibration reduction.

Compression and Shear Performance

Compression is the vertical load pressing down on the mount. Shear is sideways force through the mount.


Many machines create both forces during start-up, shutdown and normal operation. Pumps, motors and compressors may push down into the support points while also creating side movement through the frame.


For rubber-based mounts, dynamic stiffness can be around 1.1 to 1.4 times the static stiffness. This means the mount can feel stiffer when the machine is running than it does under standing weight.


The selected mount must suit the load direction as well as the equipment weight. If shear force is ignored, the machine can move, stress the fixings or pass vibration into the support frame.

Shock Absorption Capability

Shock absorption is the ability of an anti-vibration mount to control sudden force, not only continuous vibration.


Impact loads can come from start-up, shutdown, reciprocating movement or intermittent production cycles. The mount must have enough movement range and stiffness to reduce the force passed into the floor, frame or support points.
 

For shock-prone equipment, static load alone is not enough for selection. The specification should also check peak force, movement limits and any restraint needed to stop excessive travel during operation.

Dynamic Stiffness

Dynamic stiffness describes how an anti-vibration mount behaves under operating conditions rather than under static load alone. It influences:

  • Vibration isolation performance
  • Equipment stability
  • Resonance behaviour
  • Shock response

Mounts with lower dynamic stiffness generally provide improved vibration isolation, while higher stiffness often delivers greater equipment stability.

Environmental Resistance

Environmental resistance means the mount or foot can keep its support and vibration control performance under site exposure.


Outdoor plants may face moisture, UV exposure, ozone and temperature change. Industrial equipment may also expose the mount to oil, fuel, cleaning chemicals or process contamination.


Material choice matters here. For example, some rubber compounds are better suited to weather exposure, while others are selected for oil or fuel resistance. If the environment is ignored, the mount can harden, crack, swell or lose load capacity over time.

Corrosion Protection and Metal Components

Corrosion protection matters when an anti-vibration mount includes steel plates, covers, frames or threaded fixings.


DECIBEL uses galvanised metal components in several mount types, such as the galvanised steel sheet cover on Vibro-EM.2 and the galvanised cover used on Vibro-MPF. Vibro-EPMS also uses a galvanised steel cover to protect the isolation element and spread load more evenly.


For heavier plant, steel spring mounts may need corrosion-resistant coatings because the metal frame carries both the equipment load and restraint forces. This is important on rooftop HVAC units, outdoor pumps and machinery exposed to moisture or cleaning agents.

Equipment Stability and Restraint

Equipment stability means the mount must control movement as well as reduce vibration.


Generators, compressors and rotating machinery can rock, tilt or shift during start-up, shutdown or shock loading. In these cases, restrained or fail-safe mount designs help limit excessive travel while keeping the equipment supported.


Some mounts are designed for vertical and lateral restraint. Others control movement in compression, tension and shear, which is important where the machine is exposed to dynamic loads, wind pressure or seismic requirements.


If restraint is ignored, the equipment can move out of alignment, stress the fixings or create new vibration paths through the frame.

If you are unsure which elastomeric mount is best for your application, start by identifying the equipment weight, operating speed, mounting arrangement, and environmental conditions. These factors will help determine the most suitable vibration isolation solution and ensure reliable long-term performance.

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Who Are These Products For?

Building Services Teams

HVAC engineers, mechanical and electrical contractors and building services professionals need anti-vibration mounts that are easy to specify and dependable during commissioning. 


The right mount helps prevent vibration problems being discovered only after plant is connected to pipework, ductwork or lightweight support frames.

Industrial Equipment Teams

Industrial engineers, original equipment manufacturers and manufacturing facilities need vibration control that works within the machine base and support layout. 


Correctly selected mounts help protect alignment, reduce stress at fixing points and keep machinery support details compact where floor space or frame height is limited

Critical Facilities and Infrastructure Operators

Facilities managers, infrastructure operators and critical environment teams need isolation that reduces vibration risk without making essential systems harder to maintain. 


Stable mount performance helps protect sensitive equipment, limit vibration-related faults and avoid repeated adjustment after generators, pumps or technical plant are in service.

Residential and Light Commercial Users

Homeowners, installers and light commercial property owners need compact vibration control that solves nuisance noise close to occupied rooms. 


A correctly loaded mount can reduce hum and buzz from heat pumps, air conditioning condensers, booster pumps or workshop equipment without requiring a major structural change. 

Why Choose DECIBEL for Elastomeric Anti-Vibration Mounts?

Expert Engineering Support

DECIBEL helps customers select anti-vibration mounts around real equipment behaviour, not weight alone. The guidance considers load, operating speed, restraint needs and site exposure, so the mount can support the equipment safely and correctly. 

Comprehensive Product Range

DECIBEL supplies anti-vibration mounts for building services, machinery and specialist technical equipment. Our range includes compact elastomeric and spring options where damping and low installation height are important.

Fast Delivery

Many of our most popular mount vibration isolators are available from stock, enabling fast and reliable delivery throughout Europe and beyond. Dependable availability helps reduce delays during installation, maintenance, and equipment upgrades. 

Proven Performance

We have completed more than 5,000 soundproofing and acoustics bespoke designs in over 40 countries around the world. That engineering experience supports practical vibration control for residential, commercial and industrial projects alike. 

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Relevant Standards, Codes and Compliance Requirements

Anti-vibration mounts and rubber feet are not usually certified against a single project standard. They are specified as part of a wider compliance strategy where vibration control affects mechanical stability, acoustic performance, equipment protection or structure-borne noise. The references below show the main standards and guidance that may influence mount selection.

Machinery Safety and Equipment Performance

Machinery safety requirements can influence anti-vibration mount selection where equipment stability, alignment and dynamic behaviour affect safe operation.

Relevant frameworks can include:

  • Machinery Regulation (EU) 2023/1230
  • EN ISO 12100, Safety of Machinery
  • EN 60204-1, Safety of Machinery, Electrical Equipment of Machines
  • CE Marking requirements

The specification should define the working load, movement limits, damping requirement and fatigue resistance of the mount. It should also consider fixings, guarding, operator exposure and environmental durability, especially where machinery creates shock loads or repeated vibration during operation.

HVAC, Building Services and Mechanical Plant

Anti-vibration mounts are specified in HVAC and building services projects where equipment vibration can affect acoustic performance, mechanical stability and connected services.

Relevant frameworks can include:

  • EN 378, Refrigeration Systems and Heat Pumps
  • EN 1886, Air Handling Units
  • Eurovent performance guidelines
  • REHVA design recommendations

Project documentation should identify the supported equipment, operating speed, load per mounting point and restraint requirement. For rooftop plant, heat pumps and air handling units, the specification should also address corrosion resistance, weather exposure and any movement limits required by the installation detail.

Heat Pumps and Residential Mechanical Equipment

Heat pump and residential equipment specifications often need to address vibration transfer from outdoor units into foundations, walls, terraces and lightweight support bases.

Relevant frameworks can include:

  • EN 378, Refrigeration Systems and Heat Pumps
  • National noise regulations
  • Local planning requirements

Project documentation should define the unit weight, mounting arrangement, support base and exposure conditions. It should also confirm any noise or vibration limits linked to planning approval, especially where outdoor units are installed close to bedrooms, neighbouring properties or shared terraces.

Building Acoustics and Structure-Borne Noise Control

Building acoustic requirements can apply where vibration from mechanical equipment affects occupied rooms, neighbouring properties or shared parts of a building.

Relevant frameworks can include:

  • EN ISO 12354, Building Acoustics
  • Environmental Noise Directive 2002/49/EC
  • National acoustic regulations
  • Local planning requirements

The acoustic assessment should trace how vibration can travel from the equipment into the supporting construction. Fixings, pipework and service connections need particular attention, because one rigid bridge can bypass the isolators and compromise the intended acoustic separation.

Industrial Equipment and Shock Control Applications

Industrial equipment with repeated shock loads should be assessed in relation to machinery safety, vibration behaviour and equipment manufacturer requirements.

Relevant frameworks can include:

  • Machinery Regulation (EU) 2023/1230
  • EN ISO 12100, Safety of Machinery
  • ISO 20816, Measurement and evaluation of machine vibration
  • CE Marking requirements
  • Equipment manufacturer requirements

For machinery with start-up forces, reciprocating movement or intermittent impact loads, the mount cannot be specified from static weight alone. The support detail needs to account for how the machine moves in operation, how far it can safely travel and how the fixing points remain secure over time.

Critical Infrastructure and Technical Facilities

Technical facilities often need vibration control to support equipment uptime, measurement accuracy and acceptable vibration levels inside the building.

Relevant frameworks can include:

  • ISO 4866, Vibration of fixed structures
  • ISO 20816, Measurement and evaluation of machine vibration
  • BS 6472-1, Human exposure to vibration in buildings
  • CIBSE Guide B4, Noise and vibration control for building services systems
  • Project-specific structural and equipment manufacturer requirements

In these projects, the mount and feet specification is usually linked to the supported equipment and the building services design rather than one isolated product certificate. It should be clear how vibration will be assessed, what movement is acceptable and how the support detail protects reliable operation over time.

UK-Specific Requirements

For projects located in the United Kingdom, elastomeric vibration mounts may contribute to compliance with:

  • BS 8233 – Guidance on Sound Insulation and Noise Reduction
  • Approved Document E – Resistance to the Passage of Sound
  • CIBSE Design Guidance
  • BSRIA Design Recommendations

In these applications, vibration dampening performance, equipment stability, and structure-borne noise reduction are often key design criteria when selecting vibration isolation systems for mechanical equipment.

North American Requirements

In the United States and Canada, anti-vibration mounts are usually specified through the mechanical design, building code requirements and equipment manufacturer’s documentation.

Relevant frameworks can include:

  • ASHRAE guidance for HVAC noise and vibration control
  • International Building Code (IBC)
  • SMACNA Seismic Restraint Manual
  • ANSI-accredited engineering standards
  • Local building and acoustic codes
  • Manufacturer vibration and equipment specifications

The mount detail should account for operating speed, load distribution and expected movement at each support point. In seismic or wind-exposed locations, restraint becomes part of the compliance route, not a separate installation preference.

If your project specification references a particular European, UK, North American, or industry standard, our engineers can help identify the most appropriate elastomeric vibration isolation solution and recommend products that align with your technical, operational, and compliance requirements.

Frequently Asked Questions

What is the difference between rubber mounts and spring isolators?

Rubber-based mounts provide support and damping through the material itself. Spring vibration isolators are usually used where lower natural frequency is needed, especially on larger plant or slower vibration sources. The right choice depends on load, operating speed, movement control and the supporting construction.

Can the wrong mount make vibration worse?

Yes. If the mount is too stiff for the equipment load, it may not compress enough to isolate properly. If it is too soft or overloaded, the machine can rock, settle or lose alignment, which can increase vibration at the support points.

Are AV mounts suitable for outdoor use?

Outdoor use depends on the material and metal protection. Mounts exposed to rain, UV, oil, cleaning chemicals or coastal air should be selected with suitable rubber isolation compound, coating, galvanised steel or stainless steel components where required.

Can elastomeric mounts reduce noise as well as vibration?

Yes. Many equipment noise problems are caused by vibration being transferred into floors, walls, foundations, and building structures. Vibration damping mounts help reduce this structure-borne noise by absorbing vibration at the source before it can spread throughout the building. This can significantly improve acoustic comfort.

What is the difference between cylindrical mounts and rectangular mounts?

Cylindrical mounts are often used where compact point support is needed under smaller machines or brackets. Rectangular mounts can suit wider base frames where the load needs more bearing area. The correct choice depends on the support layout and the direction of movement.

Can one mount act as a shock absorber as well as a vibration isolator?

Yes, but the mount must be selected for both duties. A shock absorber has to control sudden force, while vibration damping mounts deal with repeated movement during normal operation. Equipment exposed to start-up impact, stopping forces or intermittent loading needs both conditions checked.

Which mounts are used for heavier machines?

Machines with high load ratings need mounts that can support the weight without losing movement range. Marine propulsion mounts, heavy-duty rubber-metal mounts and spring-based systems may all be considered depending on the load, speed and installation detail. Low frequency vibrations usually need a different isolation approach from lighter equipment hum.

Are rubber bumpers and silent rubber absorbers suitable for machine vibration?

Rubber bumpers are mainly used to limit impact, protect contact points or prevent hard collisions. Silent rubber absorbers can help reduce small vibration paths, but they should not be treated as a full isolation system for heavy rotating equipment. The load and movement direction still need checking.

Can elastomeric mounts absorb shock loads?

Anti-vibration mounts often last around 5 to 10 years in normal building services or machinery vibration control, but harsh conditions can shorten this to around 3 to 5 years. Outdoor exposure, oil, fuel, heat, chemical contamination or overload can all accelerate ageing.

 

Replacement is usually driven by condition, not a fixed expiry date. Cracking, hardening, swelling, permanent compression, corrosion or increased vibration transfer are signs that the mounts should be inspected and replaced where needed.

Can DECIBEL support custom anti-vibration requirements?

Yes. DECIBEL can help with custom anti-vibration selection where the standard mount layout does not match the machine base or site conditions. This can apply to automotive equipment. It can also apply to aerospace test rigs or agricultural equipment where vibration, shock and fixing details are project-specific.

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Get in touch by sending us a message, or book a free consultation to discuss your project with one of our experts.

We'll be happy to answer your questions and help you find the right solution.
Thanks for contacting us. We'll get back to you as soon as possible.

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