Inertia Bases

Type TIB

An inertia base is normally required when vibrating plant is required to be isolated with high deflection mounts, typically above 10mm deflection. If plant, such as a pump, is placed on springs without a frame base, it will be unstable.

An inertia base is a frame base into which concrete is poured, which increases the mass of the base, consequently damping down the inertial forces of the plant. The increased mass of the concrete in the base also lowers the centre of gravity of the combined structure, decreasing the base dimensions required to achieve stability. The height of the frame of the base must be at least of the longest dimension between supporting mounts.

Type TIB Inertia bases comprise a frame section manufactured from folded steel sheet typically mm thick. Mounting plates are manufactured from 10mm thick plate. Reinforcing bars are fitted into the bases. The base would normally be finished with grey or red primer ‐ other finishes can be applied as required. Concrete would be supplied and poured into the bases by others.

The base should be placed on a fixed former prior to pouring. Following curing of the concrete, the base should be lifted and the mounts fitted. Height adjustment and levelling of the base can be achieved by adjusting the fixed nut on the mounts, maintaining a minimum dimension of 25mm between the bottom of the base and the supporting structure. We would recommend that the base is temporarily fixed solid by chocks between the bottom of the base and the supporting structure prior to installation of equipment on the base. Following fitting of the supported equipment the chocks should be removed and the base levelled. The bases may be fitted with open springs, restrained springs or neoprene mounts.

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Dimension & Weight Table

 150mm
High Base
  200mm
High Base
  300mm
High Base
 
Width
mm
Base
Length
mm
Weight
kg
Width
mm
Base
Length
mm
Weight
kg
Width
mm
Base
Length
mm
Weight
kg
450450100N/AN/AN/AN/AN/AN/A
450600125N/AN/AN/AN/AN/AN/A
450900165450900190N/AN/AN/A
45012002104501200270N/AN/AN/A
600600160600600200N/AN/AN/A
600900200600900260N/AN/AN/A
60012002606001200340N/AN/AN/A
60015003206001500420N/AN/AN/A
900900275900900350900900540
900120036090012004809001200715
900150042090015005709001500885
9001800520900180070090018001055
120012005001200120066012001200975
1200150062012001500820120015001215
1200180074512001800885120018001460
12002100840120021001115120021001670
12002400970120024001285120024001920
15001500970150015001015150015001510
15001800930150018001225150018001820
150021001080150021001425150021002120
150024001240150024001640150024002430
180018001120180018001475180018002190
180021001300180021001715180021002545
180024001490180024001990180024002915
210021001520210021001900210021002850
210024001740210024002130210024003250
240024001980240024002615240024003880

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