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Selecting Rubber Isolators for Heavy Machinery

Selecting Rubber Isolators for Heavy Machinery

A Comprehensive Guide to Selecting Rubber Isolators for Heavy Machinery: Factors, Ranges, and Product Highlights

Effective vibration control is a cornerstone for the efficient and safe operation of heavy machinery in industrial environments. While metal isolators are frequently recognized for their superior load-bearing capacities, rubber isolators offer a range of unique benefits that warrant consideration. This exhaustive guide aims to first explore the essential variables for choosing rubber isolators, complete with real-world machinery examples for each range. Subsequently, we’ll introduce you to some of the most dependable rubber isolators, including hybrid models, available at Buildtec Acoustics.

Detailed Considerations for Opting for Rubber Isolators

Before delving into specific product recommendations, understanding the key factors that guide the selection of rubber isolators for heavy machinery is vital.

Importance and Ranges of Load Capacity

Load capacity is a fundamental metric that indicates the maximum weight or pressure that an isolator can effectively manage. An incorrect match between the machinery’s load and the isolator’s capacity can lead to premature wear, reduced efficiency, and even equipment failure. Therefore, it is crucial to accurately assess the load requirements of your specific machinery and match it with an isolator that can handle that load.

  • Low Load (0.2 N/mm² or 20 t/m²): Best for smaller machinery like backup generators in residential settings or air compressors in auto repair shops.

    anti vibration pads for heavy machinery

  • Medium Load (0.6 N/mm² or 60 t/m²): Ideal for mid-range machinery such as conveyor belts in retail distribution centers or CNC machines in metal shops.
  • High Load (1.0 N/mm² or 100 t/m² and above): Tailored for heavy-duty machinery like earthmovers in mining operations or industrial presses in automotive manufacturing. 

Significance and Ranges of Vibration Frequency

Different machinery operates at varying rotational speeds, generating vibrations across a spectrum of frequencies. The effectiveness of an isolator is closely tied to its ability to dampen these specific frequencies. Choosing an isolator that doesn’t align with the machinery’s operational frequency can result in inadequate vibration control, impacting both performance and safety.

  • Low Frequency (<500 RPM): Suitable for machinery like large-scale mixers in the food industry or paddle mixers in sewage treatment plants.
  • Medium Frequency (500-1500 RPM): Fits machinery like centrifugal pumps in water treatment facilities or gearboxes in manufacturing plants.
  • High Frequency (>1500 RPM): Required for high-speed machinery like turbines in energy production or high-speed CNC spindles in precision manufacturing.

Environmental Conditions and Special Requirements

Environmental factors like temperature and chemical exposure can significantly influence the performance and longevity of rubber isolators. For instance, rubber materials may degrade quickly under high temperatures or corrosive conditions, necessitating isolators specially designed to withstand such environments.


  • Standard Conditions: Suitable for normal indoor environments like assembly lines or standard workshops
  • High-Temperature Environments: Required for hot conditions like glass furnaces or steel forging operations
  • Chemical Exposure: Necessary for corrosive environments like chemical processing plants or oil refineries.

Ease of Installation

The complexity of installing isolators can vary, affecting both initial setup costs and future maintenance. Some isolators are designed for easy installation, coming in rolls or pre-cut sizes, which can save time and labour costs. On the other hand, more complex machinery may require specialized isolators that are more labour intensive to install.

  • Pre-Cut Sizes: Products like our Anti-Vibration Pads are perfect for quick installations in locations such as small machine shops or quick-service auto garages.
  • Complex Installations: More intricate machinery like industrial automation systems may require specialized installation procedures.

Highlighted Rubber Isolators from Buildtec Acoustics

Megamat Anti-Vibration Pads

  • Load Capacity: Exceptional with a load-bearing capacity ranging from 0.10N/mm2 to 2.0 N/mm². Ideal for AHUs, Chillers, HVAC, lathes, grinding mills, mallets and impulse presses.

Anti-Vibration Mounts

  • Material: Made of both rubber and steel, offering a balanced set of advantages.
  • Special Features: Theanti vse mounts provide excellent vibration control coupled with a broad spectrum of load capacities. Ideal for machinery AHUs, Chillers and HVAC.


Selecting the right rubber isolator involves a nuanced understanding of multiple considerations such as load capacity, vibration frequency, environmental conditions, and ease of installation. With this in-depth guide and the robust selection of rubber isolators available at Buildtec Acoustics, you’re fully equipped to make an informed choice.

For a broader selection of rubber isolators tailored to meet various industrial needs, visit our Vibration Isolation category.

For additional assistance or specific inquiries, our knowledgeable team at Buildtec Acoustics is ready to help.

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