Anti-Vibration Spring Mounts

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Reduce Vibration Transfer, Structure-Borne Noise and Equipment Wear

Industrial machinery, HVAC systems, generators, compressors, and rotating equipment generate low-frequency vibration that travels through floors, foundations, steelwork, and building structures, increasing noise levels, accelerating equipment wear, reducing operational accuracy, and contributing to structural fatigue. Anti-vibration spring mounts isolate vibration at the source using high load capacities and low natural frequencies, making them ideal for mechanical plants, industrial equipment, rooftop chillers, air handling units, generators, compressors, and production machinery while improving performance, minimising vibration transfer, and creating quieter, more stable operating environments.
A blue spring, sandwiched between a black platform and a silver disk.
A blue spring, sandwiched between a black platform and a silver disk.
Close-up on rooftop HVAC unit supports with spring isolators.
Close-up on rooftop HVAC unit supports with spring isolators.
Several large, white industrial air conditioning units sitting on concrete blocks on a flat roof.
Several large, white industrial air conditioning units sitting on concrete blocks on a flat roof.
Industrial air conditioning unit.
Industrial air conditioning unit.
Air conditioning unit with spring mounts on a concrete floor.
Air conditioning unit with spring mounts on a concrete floor.
Exterior rooftop mechanical equipment with spring vibration isolators.
Exterior rooftop mechanical equipment with spring vibration isolators.
Silver coil spring with threaded bolt, washers, and black rubber base.
Silver coil spring with threaded bolt, washers, and black rubber base.
VIBRO-AM Spring mount dimensions
VIBRO-AM Spring mount dimensions
Vibro-AM

A free-standing spring isolator designed to reduce low-frequency vibration generated by machinery and mechanical equipment. It provides reliable vibration isolation for light to medium loads while helping protect surrounding structures from transmitted vibration.

€45,90
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A gray shock-absorption spring mount.
A gray shock-absorption spring mount.
Several large air conditioning units resting on vibration isolation mounts on a tiled surface.
Several large air conditioning units resting on vibration isolation mounts on a tiled surface.
An air conditioning unit sits on vibration isolators.
An air conditioning unit sits on vibration isolators.
Close-up of air conditioning units on a metal frame, each supported by a black rubber mount with a visible bolt.
Close-up of air conditioning units on a metal frame, each supported by a black rubber mount with a visible bolt.
Multiple large, blue air conditioning units sitting on concrete blocks on a roof.
Multiple large, blue air conditioning units sitting on concrete blocks on a roof.
Vibro-AMR

A restrained spring isolator that combines effective vibration control with additional equipment stability. It is well-suited to machinery that may be exposed to movement, start-up forces, or changing operating conditions.

€74,27
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Metal frame containing two blue springs, bolt on top, black rubber feet.
Metal frame containing two blue springs, bolt on top, black rubber feet.
Close-up of a vibration isolator consisting of a spring held inside a steel bracket, supporting a piece of mechanical equipment on a metal frame.
Close-up of a vibration isolator consisting of a spring held inside a steel bracket, supporting a piece of mechanical equipment on a metal frame.
Large white industrial generator with black spring vibration isolators mounted on gray steel I-beams on a concrete roof.
Large white industrial generator with black spring vibration isolators mounted on gray steel I-beams on a concrete roof.
Industrial machinery supported by anti-vibration mounts on concrete pads.
Industrial machinery supported by anti-vibration mounts on concrete pads.
Large, red industrial machinery supported by grey spring vibration isolators on a concrete foundation.
Large, red industrial machinery supported by grey spring vibration isolators on a concrete foundation.
Industrial equipment with black, shock-absorbing mounts on a tiled floor.
Industrial equipment with black, shock-absorbing mounts on a tiled floor.
Industrial HVAC system with vibration isolation mounts.
Industrial HVAC system with vibration isolation mounts.
Rows of blue industrial pumps and green pipes with orange connectors in a mechanical room.
Rows of blue industrial pumps and green pipes with orange connectors in a mechanical room.
Vibro-SMR

A heavy-duty restrained spring isolator developed for larger equipment requiring both vibration reduction and structural stability. It helps control low-frequency vibration while limiting excessive equipment movement during operation.

€255,53
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Vibro-SMRV
Vibro-SMRV
Vibro-SMRV
Vibro-SMRV
Vibro-SMRV
Vibro-SMRV
Vibro-SMRV
Vibro-SMRV
Vibro-SMRV
Vibro-SMRV
Vibro-SMRV

A damped spring isolator engineered to reduce vibration while helping control resonance and transient movement. It is ideal for applications where operating conditions can create fluctuating dynamic forces.

€879,84
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Vibro-SS
Vibro-SS
Vibro-SS
Vibro-SS
Vibro-SS

A spring isolator designed to reduce low-frequency vibration generated by hanging machinery and mechanical equipment. It provides reliable vibration isolation for light to medium loads while helping protect surrounding structures from transmitted vibration.

€15,55
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Blue springs between square metal plates with a black trim.
Blue springs between square metal plates with a black trim.
Industrial equipment on spring mounts.
Industrial equipment on spring mounts.
Close-up of industrial equipment with metal springs.
Close-up of industrial equipment with metal springs.
Industrial equipment with springs on tiled surface.
Industrial equipment with springs on tiled surface.
Industrial air conditioning unit mounted on springs on a rooftop.
Industrial air conditioning unit mounted on springs on a rooftop.
Two blue springs between speckled grey metal plates with a black rim.
Two blue springs between speckled grey metal plates with a black rim.
Vibro-MS

A low-profile multi-spring isolator designed for installations where space is limited but effective vibration control is required. Its compact design delivers reliable low-frequency isolation without increasing installation height.

€99,79
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Vibro-MSH

A heavy-duty multi-spring isolator built for machinery with high operating loads and demanding performance requirements. It provides excellent vibration isolation while supporting very heavy equipment safely and efficiently.

€655,75
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Gray metal machinery spring.
Gray metal machinery spring.
Air conditioning unit on vibration isolation mounts.
Air conditioning unit on vibration isolation mounts.
Outdoor HVAC system with black cable secured by zip tie.
Outdoor HVAC system with black cable secured by zip tie.
Close-up of industrial HVAC unit with metal frame.
Close-up of industrial HVAC unit with metal frame.
Several large, gray LG air conditioning units atop concrete bases on a flat roof.
Several large, gray LG air conditioning units atop concrete bases on a flat roof.
Close-up of a green metal furniture leg resting on a black vibration-dampening mount with visible springs, set on a concrete floor against a soundproof wall.
Close-up of a green metal furniture leg resting on a black vibration-dampening mount with visible springs, set on a concrete floor against a soundproof wall.
Several air conditioning units are installed on concrete blocks on a flat, white surface.
Several air conditioning units are installed on concrete blocks on a flat, white surface.
Close-up of black machinery supported by vibration isolation mounts on a tiled surface.
Close-up of black machinery supported by vibration isolation mounts on a tiled surface.
Close-up of industrial machine on vibration dampening mounts.
Close-up of industrial machine on vibration dampening mounts.
Rooftop HVAC equipment mounted on concrete pads with vibration isolators.
Rooftop HVAC equipment mounted on concrete pads with vibration isolators.
Vibro-MSR

A restrained multi-spring isolator that combines low-frequency vibration isolation with enhanced multi-directional restraint. It is suitable for equipment requiring both vibration control and additional protection against movement.

€142,34
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Which Spring Mount Is Right for Your Application?

While all spring vibration isolators are designed to control low-frequency vibration, each product has been developed for different load requirements, installation conditions, and equipment stability needs. Understanding the key differences between the spring mount families below will help you identify the most suitable solution for your project.

If you are looking for:

Choose:

A general-purpose spring mount

Vibro-AM

Seismic or wind-load protection

Vibro-AMR

Heavy machinery isolation

Vibro-SMR

Additional damping and resonance control

Vibro-SMRV

A compact multi-spring solution 

Vibro-MS

Very high load capacity

Vibro-MSH

Critical infrastructure and restrained installations

Vibro-MSR

Suspended equipment, pipework and ductwork isolation 

Vibro-SS

Common Applications for Spring Vibration Isolators

HVAC, Building Services and Heat Pump Systems

Spring vibration mounts are widely used throughout commercial, industrial, and residential HVAC systems where low-frequency vibration can travel through floors, walls, ceilings, ductwork, pipework, and structural elements. By isolating both floor-mounted and suspended mechanical equipment from the building structure, spring mounts help reduce structure-borne noise, improve occupant comfort, and support long-term equipment performance.


Typical applications:

  • Air handling units (AHUs)
  • Chillers
  • Cooling towers
  • HVAC rooftop equipment
  • Ventilation units and fans
  • Pumps and circulation systems
  • Heat pumps
  • Refrigeration equipment
  • Building service plant rooms
  • Residential heat pumps
  • Air conditioning condensers
  • Domestic ventilation systems
  • Suspended air handling units
  • Pipework systems
  • Ductwork and ventilation networks

Generators, Rotating Equipment and Critical Infrastructure

Generators, engines, compressors, and other rotating equipment produce dynamic forces that can cause excessive vibration, resonance, and structural fatigue if not properly controlled. Spring vibration isolators help minimise vibration transfer into supporting structures while improving equipment stability and operational reliability. They are commonly specified in power generation facilities, data centres, utility infrastructure, and technical buildings where critical equipment must operate reliably while maintaining low vibration levels.


Typical applications:

  • Generators and generator sets
  • Diesel and gas engines
  • Compressors
  • Turbines
  • Blowers and industrial fans
  • Electric motors
  • Reciprocating machinery
  • Test benches and mechanical equipment
  • Data centres
  • Utility and energy facilities
  • Technical rooms and plant platforms
  • Critical infrastructure installations

Industrial Machinery and Manufacturing Equipment

Manufacturing equipment often operates continuously under dynamic loads that generate vibration and mechanical stress. Spring mounts help protect machinery foundations, improve operational stability, and reduce the transmission of vibration to surrounding structures. Their ability to support high loads while delivering effective low-frequency isolation makes them suitable for a wide range of industrial applications where performance, reliability, and precision are essential.


Typical applications:

  • CNC machines and machining centres
  • Metalworking and fabrication equipment
  • Presses and stamping machines
  • Injection moulding machines
  • Packaging and processing lines
  • Conveyors and material handling systems
  • Industrial mixers and agitators
  • Textile and printing machinery
  • Production and assembly equipment

Residential, Commercial and Specialised Equipment

Spring vibration isolators can also be used in smaller-scale applications where vibration reduction, noise control, and equipment protection are important. From residential mechanical systems to specialised technical installations, spring mounts help minimise vibration transfer and improve comfort in occupied spaces. They are particularly useful where equipment is located close to living areas, offices, hotels, healthcare facilities, or vibration-sensitive environments.


Typical applications:

  • Swimming pool pumps
  • Water booster pumps
  • Backup generators
  • Home workshop machinery
  • Light commercial HVAC systems
  • Research and laboratory equipment
  • Acoustic enclosures and technical installations
  • Small mechanical plant
  • Vibration-sensitive equipment
  • Suspended technical services
  • Specialist engineering applications

Key Performance Criteria for Anti-Vibration Spring Mounts

Selecting the correct spring vibration isolator involves more than simply matching the weight of the equipment. Factors such as load capacity, natural frequency, static deflection, equipment restraint, and installation method all influence performance, whether the equipment is floor-mounted or suspended from the building structure.


Understanding the specifications below will help you choose the most suitable spring mount for your HVAC equipment, generators, compressors, pumps, industrial machinery, and building services installations.

Load Capacity

Load capacity is one of the most important factors when selecting a spring mount. Every isolator is designed to operate within a specific load range, allowing the spring to deflect correctly and deliver its intended vibration isolation performance.


If the applied load is too low, the spring may not compress sufficiently to achieve effective isolation. If the load exceeds the mount's rated capacity, excessive compression can reduce performance and shorten service life.


When selecting spring mounts:

  • Determine the total operating weight of the equipment, including fluids, pipework, and accessories.
  • Divide the load evenly across all mounting points.
  • Check that each spring mount operates within its recommended load range.
  • Consider dynamic loads caused by start-up, shutdown, torque reactions, or changing operating conditions.

Proper load distribution is particularly important for generators, chillers, compressors, and other heavy mechanical plant.

Natural Frequency

Natural frequency is often considered the most critical specification for spring vibration isolators.


Every spring mount has a natural frequency, measured in Hertz (Hz), which determines how effectively it can isolate vibration. For effective performance, the natural frequency of the isolator should be significantly lower than the operating frequency of the equipment.


As a general guideline:

  • A frequency ratio of at least 3:1 is recommended.
  • Larger frequency separations provide higher isolation efficiency.
  • Low-speed machinery often requires spring mounts with very low natural frequencies.
  • Equipment operating close to the isolator's natural frequency can experience resonance.

Because spring mounts typically achieve lower natural frequencies than rubber mounts, they are particularly effective for HVAC systems, generators, compressors, and other low-speed rotating equipment.

Static Deflection

Static deflection refers to the amount a spring compresses under its working load. This specification provides a simple indication of how effectively a spring mount can isolate low-frequency vibration.


In general:

  • Greater static deflection results in a lower natural frequency.
  • Lower natural frequencies provide better low-frequency isolation.
  • Larger spring isolators typically offer higher deflection values.
  • High-deflection spring mounts are often preferred for heavy plant and slow-running machinery.

For applications such as chillers, cooling towers, large pumps, and generator sets, static deflection plays a major role in overall vibration isolation performance.

Vibration Isolation Efficiency

Isolation efficiency describes how much vibration is prevented from entering the supporting structure. Typical performance levels include:

  • 80–90% isolation for general mechanical equipment.
  • 90–95% isolation for most HVAC and industrial applications.
  • Over 95% isolation for sensitive installations and low-frequency machinery.

Actual performance depends on the relationship between equipment speed, spring natural frequency, load distribution, and installation conditions.


Properly selected spring mounts can dramatically reduce structure-borne vibration, helping to minimise noise transmission and improve equipment stability.

Damping Characteristics

While spring mounts provide excellent low-frequency isolation, damping is often required to control transient movement and resonance. Many spring isolators incorporate damping elements that help:

  • Control excessive spring movement.
  • Reduce resonance during start-up and shutdown.
  • Improve stability under changing operating conditions.
  • Limit vibration amplification near critical frequencies.

Applications involving variable-speed equipment, fluctuating loads, or frequent cycling often benefit from damped spring isolators.

Restraint Requirements

Some equipment requires additional restraint to control movement while maintaining vibration isolation. This is particularly important for equipment exposed to:

  • Wind loading
  • Seismic forces
  • Start-up torque
  • Emergency stop conditions
  • Dynamic horizontal movement

Restrained spring mounts combine vibration isolation with mechanical restraint, making them suitable for rooftop HVAC equipment, generators, compressors, and critical infrastructure installations.

Restraint requirements may also apply to suspended systems where movement of pipework, ductwork, or ceiling-mounted equipment must be controlled while maintaining effective vibration isolation.

Corrosion Protection & Environmental Conditions

Spring mounts are frequently installed in challenging environments where long-term durability is essential. Key environmental considerations include:

  • Outdoor weather exposure
  • Moisture and humidity
  • Corrosive industrial environments
  • Coastal and marine conditions
  • Temperature fluctuations
  • UV exposure

For rooftop HVAC systems, cooling towers, heat pumps, and outdoor plant, galvanised or corrosion-protected components can significantly extend service life.

Equipment Stability

In addition to vibration control, spring mounts must provide adequate equipment stability.


Large mechanical systems often generate forces that can cause rocking, tilting, or uneven loading if the mounting system is not properly designed. Selecting the correct spring configuration and load distribution helps maintain equipment alignment, improve operational reliability, and prevent excessive movement during operation.

Suspension Loads & Hanging Equipment

Not all spring isolators support equipment from below. Suspended equipment such as ductwork, pipework, air handling units, ceiling-mounted machinery, and mechanical services often require spring hangers specifically designed to support loads from above while maintaining effective vibration isolation.


When selecting spring hangers:

  • Determine the supported load at each suspension point.
  • Consider both static and dynamic loads.
  • Allow for pipework expansion and contraction where applicable.
  • Verify sufficient spring travel and movement capability.
  • Ensure the hanger is suitable for the equipment's operating environment.

For suspended HVAC systems and building services, correctly selected spring hangers help prevent vibration from travelling into ceilings, walls, and structural elements.

If you are unsure which spring mount is best for your application, start by identifying the equipment weight, operating speed (RPM), number of mounting points, and installation environment. These factors will determine the most appropriate spring isolator and help ensure maximum vibration reduction, lower noise transmission, and long-term equipment reliability.

Who Are These Products For?

HVAC Engineers, M&E Contractors and Building Services Professionals

Spring vibration isolators are widely specified by HVAC engineers, M&E contractors, and building services consultants responsible for controlling low-frequency vibration from chillers, air handling units, cooling towers, pumps, heat pumps, rooftop plant, and ventilation systems. By reducing structure-borne noise and vibration transmission, spring mounts help improve occupant comfort, protect building structures, and support compliance with acoustic performance requirements in commercial, industrial, and residential developments.

Industrial Engineers, OEMs and Manufacturing Facilities

Manufacturing plants, industrial operators, and equipment manufacturers use spring mounts to improve machinery stability, reduce mechanical stress, and protect supporting structures from dynamic vibration forces. Their ability to support high loads while delivering excellent low-frequency isolation makes them ideal for generators, compressors, production machinery, test benches, process equipment, and a wide range of industrial applications where reliability and operational performance are critical.

Facilities Managers, Infrastructure Operators and Critical Environments

Facilities managers and infrastructure operators rely on spring vibration isolators to protect essential equipment and maintain stable operating conditions. From data centres and utility facilities to hospitals, laboratories, technical rooms, and energy infrastructure, spring mounts help minimise vibration transfer, reduce maintenance requirements, extend equipment lifespan, and improve overall system reliability in vibration-sensitive environments.

Homeowners and Light Commercial Property Owners

Spring vibration mounts are also suitable for residential and light commercial applications where mechanical equipment is installed close to occupied spaces. Homeowners, property managers, and installers use them to reduce vibration and noise from heat pumps, air conditioning condensers, domestic pumps, backup generators, workshop equipment, and small mechanical plant. By isolating vibration at the source, spring mounts help create quieter, more comfortable indoor and outdoor environments while protecting surrounding structures from long-term vibration exposure.

Why Choose DECIBEL for Anti-Vibration Spring Mounts?

Expert Engineering Support

Choosing the correct spring vibration isolator requires more than matching equipment weight alone. Factors such as operating speed, natural frequency, static deflection, load distribution, restraint requirements, and installation conditions all influence performance. Our specialists can help identify the most suitable spring mount solution for HVAC equipment, generators, compressors, pumps, industrial machinery, and other low-frequency vibration applications.

Comprehensive Product Range

DECIBEL offers a comprehensive range of anti-vibration spring mounts and spring hangers for machinery, HVAC systems, and building services. Our portfolio includes standard and restrained spring mounts, damped isolators, heavy-duty multi-spring systems, low-profile solutions, and spring hangers for suspended services, delivering effective low-frequency vibration control across a wide range of mechanical installations.

Fast Delivery

Many of our most popular spring vibration isolators are available from stock, allowing for fast and reliable delivery throughout Europe and beyond. This helps engineers, contractors, installers, and facility managers keep projects on schedule while reducing delays during installation, maintenance, and equipment upgrades.

Proven Performance

Our spring mounts are used in commercial buildings, industrial facilities, power generation plants, data centres, technical rooms, and residential heat pump installations worldwide. Designed to deliver effective low-frequency vibration isolation, they help reduce structure-borne noise, protect supporting structures, improve equipment reliability, and extend service life in even the most demanding operating environments.

What Do Our Customers Think?

Relevant Standards, Codes and Compliance Requirements

Anti-vibration spring mounts are widely specified in projects where controlling low-frequency vibration, reducing structure-borne noise, and protecting building structures are critical design requirements. While spring isolators themselves are not typically certified against a single project standard, they often play an important role in helping engineers, consultants, and contractors meet vibration, acoustic, and mechanical performance objectives.

Machinery Safety and Equipment Performance

Throughout the European Union, machinery manufacturers and industrial operators are required to consider equipment stability, vibration exposure, and long-term operational reliability. If your project falls under:

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

look for spring mounts with suitable load capacities, static deflection characteristics, and long-term fatigue resistance. Properly selected spring isolators can help minimise vibration transfer, reduce mechanical stress, improve equipment stability, and contribute to safer machinery operation.

HVAC, Building Services and Mechanical Plant

Spring vibration isolators are among the most commonly specified solutions for controlling vibration from large HVAC equipment and building services installations. Their low natural frequency makes them particularly effective for slow-running mechanical plant where rubber mounts may not provide sufficient isolation.

For projects designed in accordance with:

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

consider spring mounts selected according to operating frequency, equipment weight, static deflection, and expected vibration levels. Spring isolators are frequently used beneath chillers, cooling towers, rooftop plant, air handling units, large pumps, and heat pump systems.

Heat Pumps and Residential Mechanical Equipment

As residential and commercial heat pump installations continue to grow across Europe, vibration isolation is becoming increasingly important for both acoustic performance and occupant comfort.

For projects designed in accordance with:

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

spring mounts can help minimise vibration transmission from outdoor units into walls, foundations, and surrounding building structures. Correctly selected isolators can reduce structure-borne noise, improve equipment stability, and support long-term system performance.

Building Acoustics and Structure-Borne Noise Control

Many commercial, residential, and mixed-use developments include acoustic performance requirements designed to minimise noise transmission between occupied spaces. Where compliance is required with:

  • EN ISO 12354 – Building Acoustics
  • Environmental Noise Directive 2002/49/EC
  • National acoustic regulations and local planning requirements

low-frequency vibration control often becomes a key design consideration. In these applications, spring mounts are commonly selected for their ability to achieve lower natural frequencies and higher static deflections than many alternative isolation technologies, helping to minimise structure-borne noise transmission throughout the building.

Structural Protection and Critical Infrastructure

Technical buildings and critical facilities often require additional protection against vibration-induced structural loading and long-term fatigue. For projects involving:

  • Data centres and technical rooms
  • Energy production facilities
  • Utility infrastructure
  • Research laboratories
  • Hospitals and healthcare facilities
  • Industrial production environments
  • Suspended air handling units
  • Pipework systems
  • Ductwork networks

look for spring isolators offering high load capacities, low natural frequencies, and reliable long-term performance. Restrained spring mounts are often specified where equipment movement must be controlled while maintaining effective vibration isolation.

Seismic, Wind and Equipment Restraint Requirements

Certain installations require equipment restraint in addition to vibration isolation. Projects involving:

  • Rooftop HVAC equipment
  • Critical infrastructure
  • High-rise buildings
  • Seismic design zones
  • Emergency power systems

may require restrained spring isolators capable of limiting excessive movement while maintaining isolation performance. These systems are commonly used to satisfy engineering requirements relating to seismic activity, wind loading, torque reactions, and equipment stability during operation.

UK-Specific Requirements

For projects located in the United Kingdom, spring vibration isolators 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, natural frequency, static deflection, and vibration isolation efficiency are often key design criteria when selecting spring mounts for mechanical plant and building services equipment.

North American Requirements

In the United States and Canada, spring vibration isolators are widely specified as part of mechanical, acoustic, and seismic design requirements.  Where compliance is required with:

  • ASHRAE Guidelines for HVAC Noise and Vibration Control
  • International Building Code (IBC)
  • SMACNA Seismic Restraint Manual
  • ANSI-accredited engineering standards
  • Local building and acoustic codes

look for spring mounts selected according to operating speed, load distribution, seismic requirements, and equipment movement limitations. Restrained spring isolators are commonly specified for chillers, generators, pumps, cooling towers, and other critical mechanical systems where both vibration isolation and equipment restraint are required.


For hospitals, laboratories, educational facilities, commercial developments, and data centres, low natural frequency spring mounts are frequently used to minimise structure-borne vibration while maintaining compliance with acoustic and mechanical performance requirements.

What Specifications Matter for Compliance?

When selecting spring vibration isolators for compliance-driven projects, focus on the performance characteristics most commonly referenced during engineering design and project approval:

  • Load capacity
  • Natural frequency
  • Static deflection
  • Vibration isolation efficiency
  • Spring travel and movement limits
  • Suspended load capacity
  • Equipment restraint capability
  • Seismic and wind-load resistance
  • Corrosion protection and environmental durability

If your project specification references a particular European, UK, North American, or industry standard, our engineers can help identify the most suitable spring mount solution and recommend products that align with your technical, acoustic, and compliance requirements.

Frequently Asked Questions

What are anti-vibration spring mounts used for?

Anti-vibration spring mounts are designed to isolate low-frequency vibration generated by HVAC equipment, generators, compressors, pumps, industrial machinery, and rotating equipment. By preventing vibration from transferring into floors, foundations, steelwork, and building structures, they help reduce noise, protect equipment, and improve operational reliability.

How do I calculate the correct spring mount load capacity?

Start by determining the total operating weight of the equipment, including fluids, accessories, and connected components. Divide this weight by the number of mounting points and select spring mounts that operate within their recommended load range. Proper load distribution is essential for achieving the expected vibration isolation performance.

Are spring vibration isolators suitable for HVAC equipment?

Yes. Spring vibration isolators are widely used beneath chillers, air handling units (AHUs), cooling towers, rooftop HVAC equipment, pumps, heat pumps, and refrigeration systems. Their ability to control low-frequency vibration makes them one of the most effective solutions for reducing structure-borne noise in commercial and residential buildings.

Do I need spring hangers for ductwork and pipework?

Where vibration from fans, pumps, air handling units, or mechanical plant can be transmitted through suspended services, spring hangers are often recommended. Products such as Vibro-SS help isolate vibration in ductwork, pipework, and suspended equipment, reducing the transfer of structure-borne noise into ceilings, walls, and occupied spaces. They are commonly specified in commercial buildings, plant rooms, healthcare facilities, hotels, and residential developments.

Can anti-vibration spring mounts be used for residential heat pumps?

Absolutely. Spring mounts are increasingly used beneath residential heat pumps and outdoor air conditioning units to reduce vibration transmission into the building structure. This helps improve acoustic comfort, minimise noise complaints, and protect surrounding walls, floors, and foundations from continuous vibration.

When should I choose spring mounts instead of rubber mounts?

Spring mounts are typically recommended for heavier equipment and applications involving low-frequency vibration. Because they provide lower natural frequencies and greater static deflection than rubber mounts, they are often used for chillers, cooling towers, generators, compressors, air handling units, and large mechanical plant where maximum vibration isolation is required.

What is natural frequency and why is it important?

Natural frequency is the frequency at which a spring isolator naturally vibrates. For effective vibration isolation, the mount's natural frequency should be significantly lower than the operating frequency of the equipment. Lower natural frequencies generally provide better isolation performance, particularly for slow-running machinery and HVAC systems.

Can spring vibration isolators be used for suspended equipment?

Yes. Not all spring isolators are designed for floor-mounted equipment. Spring hangers such as Vibro-SS are specifically designed to isolate vibration from suspended mechanical systems including ductwork, pipework, ceiling-mounted air handling units, ventilation equipment, and other building services. By isolating vibration before it reaches the building structure, spring hangers help reduce structure-borne noise and improve occupant comfort.

Are restrained spring mounts necessary for rooftop equipment?

In many cases, yes. Rooftop HVAC equipment may be exposed to wind loads, seismic forces, or movement during operation. Restrained spring mounts provide effective vibration isolation while also limiting excessive movement, making them a common choice for chillers, cooling towers, air handling units, and rooftop plant installations.

How do I choose the right spring vibration isolator?

The most important factors are equipment weight, operating speed (RPM), number of mounting points, installation environment, and isolation performance requirements. If you are unsure which solution is best, our engineers can help you select the most suitable spring mount based on your equipment specifications and project requirements.

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