In Shaper machine tool is having reciprocating motion and work piece is clamped on table which is stationary. It is mostly suitable for light duty operation.In Shaping large cutting force is transferred to tool.
In Planer machine tool is having stationary and work piece is clamped on table which is reciprocating motion. It is mostly suitable for Heavy duty operation. In planner large cutting force is transferred to table.

Shaper occupies smaller work area.
Planner occupies larger work area.
Initial cost of Shaper is cheap,whereas for Planner its costly.

Shaper occupies smaller work area.
Planner occupies larger work area.
Initial cost of Shaper is cheap,whereas for Planner its costly.

In Shaper machine tool moves and workpiece is stationary and it is used for light workpieces.Whereas in Planner machine the tool is stationary and workpiece movesand it is used for heavy workpieces.

Shaper occupies smaller work area.
Planner occupies larger work area.
Initial cost of Shaper is cheap,whereas for Planner its costly.

In shaper the ram holding tool reciprocates where as in planer the table holding work piece reciprocates but both were used to plane the surfaces. . .

in addition to above points the above points a shaper does the operation in a forward stroke whereas its contrary in case of a planer.

planer the table holding work piece reciprocates.
shaper the ram holding tool reciprocates.

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