ISL - Isolated Systems Limited

Industrial Noise Vibration &
Thermal Management Solutions




Rubber Cap, Single Open Spring Mount, Unrestrained


Single Spring Rubber Cap “NSM-B-Double” Type:

  • Designed to provide both low and high frequency isolation from vibration and shock.
  • Helical Spring Coil encapsulated in Neoprene Caps, to provide further increased high frequency isolation.
  • Springs designed to work at low stress giving long working life.
  • Available in Three colour coded load ranges.
  • Built-in, manual levelling facility.
  • M12 top fixing plus Baseplate equipped version.
  • No maintenance required.
  • May be used free-standing or bolted down.


Typical Applications:

  • Inertia Bases
  • Axial Fans
  • Centrifugal Fans
  • Blowers
  • Compressors
  • Pumps
  • Refrigeration Units
  • Small diesel & Motor Generator Sets


Open Spring “NSM-B-Double” Mount, Performance Overview:

No. of Springs Colour code Load (Max) Optimum Deflection
2 Black 483Kg 20mm
2 Yellow 543Kg 20mm
2 Green 761.7Kg 20mm