The
most commonly constructed and used machine foundations are of four types, which
are as follows:
1. Block type: comprises of a pedestal resting base on a footings. This sort of
foundation consists of a large mass and comparatively small natural
frequency.
2. Box type: comprises of a hollow concrete blocks. The mass of this sort of
foundations are comparatively lesser than the block type, however the
natural frequency is found increased.
3. Wall type: comprises of a pair of walls featured with a top slab. The
machine is laid to rest on the top portion of slab.
4. Framed type: comprises of vertical columns consisting a horizontal frame at
their tops. The machine is laid and supported within the frame.

**Suitability of use of machine foundations:**The machines that produce
periodical and impulsive loading/forces/vibrations at lower speeds are
principally offered or constructed with the block type machine foundations.
Framed type machine foundations are principally employed or constructed for the
machines functioning or running at higher speeds and also for rotating types.
However, those machines with negligibly minute dynamic forces/vibrations like
for lathes do not require to be provided with machine foundations. They can be
simply directly bolted or fastened on the floor.