Principle and Working of SHAPER MACHINE


Introduction: The shaper is a machine tool used primarily for:

1. Producing a flat or plane surface which may be in a horizontal, a vertical or an angular plane.

2. Making slots, grooves and keyways

3. Producing contour of concave/convex or a combination of these

Working Principle: The job is rigidly fixed on the machine table. The single point cutting tool held properly in the tool post is mounted on a reciprocating ram. The reciprocating motion of the ram is obtained by a quick return motion mechanism. As the ram reciprocates, the tool cuts the material during its forward stroke. During return, there is no cutting action and this stroke is called the idle stroke. The forward and return strokes constitute one operating cycle of the shaper.


Construction: The main parts of the Shaper machine is Base, Body (Pillar, Frame, Column), Cross rail, Ram and tool head (Tool Post, Tool Slide, Clamper Box Block).

Base: The base is a heavy cast iron casting which is fixed to the shop floor. It supports the body frame and the entire load of the machine. The base absorbs and withstands vibrations and other forces which are likely to be induced during the shaping operations.

Body (Pillar, Frame, Column): It is mounted on the base and houses the drive mechanism compressing the main drives, the gear box and the quick return mechanism for the ram movement. The top of the body provides guide ways for the ram and its front provides the guide ways for the cross rail.

Cross rail: The cross rail is mounted on the front of the body frame and can be moved up and down. The vertical movement of the cross rail permits jobs of different heights to be accommodated below the tool. Sliding along the cross rail is a saddle which carries the work table.

Ram and tool head: The ram is driven back and forth in its slides by the slotted link mechanism. The back and forth movement of ram is called stroke and it can be adjusted according to the length of the workpiece to be-machined.

38 Responses to “Principle and Working of SHAPER MACHINE”

  1. göksu

    good job. Thank you for that..

  2. khuram shehzad

    very nice dear your whole workingis apprisheaidable

  3. addy dixit

    nice n easily defination!!!!!!11

  4. raymond

    i didn’t get enough dah

  5. chalkoo

    i need some more and basic knowledge about the machine ,,,,,,,,
    that’s not enough for me

  6. bhushan

    thats not enough u shuld tell how it works nd abt the mechnism
    gears nd all



  8. Devesh Ranjan

    Nice article there.
    I think this video might help people understand the mechanism of the machine better.

    It is a 3-D animation of the shaper mechanism.

  9. royalmech vicky

    very nice…



  11. Niteesh kumar

    good job.but i want to ask u that what is the reason behind that ‘their is no cutting in return stroke of ram’.

  12. sitaram

    nice thery.

  13. karthick raja.v

    i like this, please add the applications this machines

  14. gevendra

    Define very simple word.very useful for techanical field

  15. gevendra

    Very useful.

  16. admin


  17. Olara Roney Lakuc

    The machine requires attentions when operating and accuracy depend on feeding on the work piece.

  18. kapil dodiya

    thank you
    for providing such a wonderful site for us

  19. admin


  20. Haridharan

    Add tha Size and specifications of shaper

  21. admin


  22. Anyewi George

    a powerful machine

  23. Ashok gupta

    A powerful note

  24. avijite chowdhury

    Why water is not use in saper machine

  25. parwej Hussain

    Very nice


    WOW !

  27. Kuldip patel

    Working principle is not given satisfactory… thanks

  28. admin

    will try to improve.


  29. ankit kumar

    this site is very good site
    here available any type of question related to ENGINEERING

  30. bashoma

    explain how you would correct shaper which feeds on the cutting stroke

  31. Resss


  32. Charles Maganda

    Tank u ippreciated it bt ineed more information and questions about machine

  33. anil jangra

    hello friends, in return stock , shaper machine lift up tool that’s the reason why tool dont cut in return stock

  34. suraj nargawe

    very nice simple word working principle % for that thans$

  35. pawan kumar


  36. lokesh

    good and limited explaination of the topic

  37. Shweta Chavda


    Nice article and different contents use this post.
    Thanks for sharing this post.

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