API-M Type

Description Key Features Applications Downloads

Acrefine Pad Isolator

Modular Rubber Vibration Isolation Pad

Acrefine API-M type modular rubber pad is designed to minimize vibration and noise transmission from equipment to structures. Modules are made of 50x50x10 mm (2”x2”x3/8”) rubber and are connected to each other by a thin rubber web that can be easily cut with a simple box knife. API-M pad blocks are manufactured in 357×357 mm (14”x14”) size and can be cut to any combination of 50 mm (2”) dimension sizes.

Each module has a Ø9 mm (Ø0.35”) diameter through hole. This hole can be increased to Ø17 mm (Ø0.67”) by cutting the thin rubber web. The design also allows for holes to be cut for any combination of modules.

Key Features
  • Modular design
  • Through-bolt hole in each module for easy installation
  • Bolting hole can be cut for any size and combination
  • Can be stacked with steel plates to achieve high deflection
  • Can be easily cut with box knife to required size
  • No need to stock pre-cut pads
  • 50 Shore A Hardness

Acrefine API-M type vibration isolators are suitable for floor mounted mechanical equipment that generates high frequency vibration i.e. pumps, chillers, compressors, centrifugal fans, blower-coil units, vent sets, low pressure packaged air-handling units, etc.

API-M type vibration isolation pads are available with up 1.44 mm (1/16″) deflection and 90 kg (198 lb) load capacity for a single module. If higher deflections are required the pads can be stacked with steel plates between layers.


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