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Specifications:
A unique range of spring mountings are designed primarily for building services applications where the control of low frequency vibrations and noise emanating from mechanical plants is of paramount importance. The benefits of a combined rubber and steel housing for the spring have helped establish the Enclosed Spring Isolator mount as an industry standard accepted by specifier, equipment manufacturers and mechanical services installers.

Design Feature:
  • Nitrile rubber (oil resistant) lower spring housing eliminates the possibility of metallic continuity and ensures excellent acoustic performance.
  • Full enclosed captive assembly protects the spring and controls transient motion.
  • All steel components are zinc plated.
  • Nominal 25 & 50 mm deflection colour helical steel springs to BS 1726 Class B
  • Laterally Stable Springs with 50% overload capacity.
  • Simple single screw height adjustment.
  • Ribbed Rubber pads on base.
  • Colour coded for easy identification Spring
  • Stainless Steel and Zinc Electroplated variants available.
Application:
  • Axial and Centrifugal Fans
  • Air Handling Units
  • Chillers and Cooling Towers
  • Rotary and Multi Cylinder Compressor
Enclosed-Spring-Isolator
Product Colour Rated Deflection At Dimension (mm)
Code Code Load (Kg) Rated Load (mm) A B C D E F
SMI-ESI-30 Yellow 30 25 110 70 85 82 M10 10
SMI-ESI-60 Green 60 25 110 70 85 82 M10 10
SMI-ESI-100 Blue 100 25 110 70 85 82 M10 10
SMI-ESI-160 White 160 25 110 70 85 82 M10 10
SMI-ESI-250 Red 250 25 110 70 85 82 M10 10
SMI-ESI-200 Red 200 25 180 95 140 138 M16 14
SMI-ESI-300 Purple 300 25 180 95 140 138 M16 14
SMI-ESI-400 Grey 400 25 180 95 140 138 M16 14
SMI-ESI-500 Orange 500 25 180 95 140 138 M16 14
SMI-ESI-600 Brown 600 25 180 95 140 138 M16 14
SMI-ESI-700 Orange 700 25 180 95 140 138 M16 14
SMI-ESI-800 Black 800 50 180 95 140 138 M16 14
SMI-ESI-100 Yellow 100 50 180 95 140 138 M16 14
SMI-ESI-200 Green 200 50 180 95 140 175 M16 14
SMI-ESI-300 Blue 300 50 180 95 140 175 M16 14
SMI-ESI-400 White 400 50 180 95 140 175 M16 14
SMI-ESI-500 Black 500 50 180 95 140 175 M16 14
Due to policy of continual improvement, the specifications are subject to change without prior notice.
  • Measurements are subject to 5% tolerance.
  • To achieve good sound suppressions do not over load fitting.