web analytics

Rubber vs Metal Isolators in Heavy Machinery

Rubber vs Metal Isolators in Heavy Machinery

Rubber vs Metal Isolators in Heavy Machinery: A Detailed Examination


In heavy machinery operations, managing vibrations is a critical factor that significantly impacts the operational efficiency and longevity of the equipment. Among various solutions, rubber and metal isolators are prevalent choices, each with its distinct set of advantages. At Buildtec Acoustics, we offer a spectrum of vibration isolation products tailored for a multitude of applications. This article unfolds a comparative analysis between rubber and metal isolators, spotlighting their advantages alongside examples from our product range.

Rubber Isolators

Rubber isolators are known for their superior vibration damping and shock absorption properties, making them a preferred choice in scenarios demanding significant noise and vibration reduction.

  • Advantages:
    • Vibration Damping: Rubber’s inherent damping properties are instrumental in absorbing and dissipating vibrational energy.
    • Shock Absorption: The elasticity of rubber facilitates effective shock absorption, thereby protecting machinery from potential damage stemming from sudden impacts.
    • Corroanti vibration mountssion Resistance: Unlike metal, rubber is resistant to corrosion, which translates to a longer lifespan in challenging environments.
    • High Load Capacity: Rubber isolators are capable of withstanding significant loads, for example, the Magamat ME900 has a load-bearing capacity of 1.5 N/mm², or 150 t/m².
  • Examples from Buildtec Acoustics:
    • Anti-Vibration Pads: These pads excel in reducing vibration and noise in heavy machinery, engineered to endure varying loads while delivering excellent stability.
    • Megapoint Vibration Pad: With its versatile design, the Megapoint Vibration Pad is apt for a broad spectrum of heavy machinery applications, ensuring effective vibration control.

Metal Isolators

On the flip side, metal isolators are renowned for their strength, stability, and higher load-bearing capacity, rendering them suitable for heavy-duty machinery applications.

  • Advantages:
    • High Load Capacity: When it comes to exceptionally high load-bearing capacities, metal isolators often have the upper hand. These isolators can handle loads up to 10,000 pounds or more, making them particularly suitable for extremely heavy-duty industrial applications. To put it in the commonly used metric units, this high load capacity can often translate to well above 2 N/mm² or 200 t/m²..
    • Stability: They provide a stable base, ensuring the machinery remains securely positioned even under rigorous conditions.
    • Temperature Resistance: Metal isolators can endure higher temperatures, often withstanding up to 300°C without compromising their structural integrity.

Hybrid Solution: Rubber-Metal Isolators

Bridging the advantages of both materials, Buildtec Acoustics offers hybrid solutions like the Anti-Vibration Mounts which encapsulate the advantages of both rubber and metal isolators. These mounts are designed to provide optimal stability and vibration control in heavy machinery, significantly mitigating operational noise and vibration.

  • Technical Data:
    • Acoustic Performance: Our hybrid anti-vibration mounts are adept at reducing structure-borne noise, a common issue in heavy machinery operations.
    • Product Thickness: The product thickness is meticulously engineered to ensure effective vibration control and load distribution.
    • Load Bearing Capabilities: The amalgamation of rubber and metal in these mounts enhances the load-bearing capacity, ensuring they remain resilient under high-load scenarios.


The discerning choice between rubber, metal, or hybrid isolators hinges on the distinct requirements of your machinery application. Rubber isolators excel in vibration damping and shock absorption, metal isolators offer higher load capacity and stability, whereas hybrid solutions like our Anti-Vibration Mounts encapsulate the merits of both. Explore our vibration isolation category to unearth the impeccable solution for your project.

Employing the right type of isolators congruent with your machinery’s operational exigencies will significantly augment its efficiency and operational lifespan.

Scroll to Top

Request a Callback

Fill in your details and we’ll get back to you asap.