Difference between Planer and Slotter Machines [PDF]

Planer and slotter machines are used in manufacturing and machining processes. They are used to cut and shape materials. In this article we will understand the difference between planer and slotter machines. We will learn about which machine is preferred in manufacturing industry.

What is Planer Machine?

A planer machine is a tool designed to produce a plane and a flat surface on a workpiece that is too large or too heavy. The workpiece is securely fixed on a table called platen, and it reciprocates horizontally against a single-edged cutting tool. The surface machined may be horizontal, vertical or at an angle.

planer machine definition

What is Slotter Machine?

The slotter machine is a reciprocating machine tool in which, the ram holding the tool, reciprocates on a vertical axis and the Cutting action of the tool is only during the downward stroke. They are used to cut slots and grooves from materials such as metal, wood, and plastics.

slotter machine definition

Difference Between Planer Machine and Slotter Machine

Planer MachineSlotter Machine
These are the heavier, larger and costlier machine.These are lighter, smaller and cheaper machines.
High machining accuracy.Low machining accuracy.
The rate of power consumption is high.The rate of power consumption is low.
In planer, it is possible to make deep cuts and heavy feedsIn slotter machine, it is not Possible to take deep cuts and heavy feeds.
This is intended for large jobs.This is intended for small jobs.
It requires a large floor space.It requires less floor space.
The tool is stationary and work is moving.The tool is moving and work is stationary.
Multiple tools are used for machining.Only one tool is used for machining.
Tools used are heavier, stronger and larger.The tools used are lighter and smaller.
Work setting requires more skill and more time.Work setting requires less skill and less time.


What materials can be cut with a slotter machine?

Steel, aluminum, brass, and plastic can be easily cut with slotter machines.

What is the difference between a Slotter and a shaper?

The major difference between a slotter and a shaper machine is that a slotter cuts slots and grooves while a shaper cuts flat surfaces.


In summary, planer machines are best for larger and costlier projects. Slotter machines are good in smaller tasks. I hope you found this article informative. Feel free to comment down if you have any questions.

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