Grinding Machines and Equipment


Horizontal Spindle Surface Grinder

Horizontal Spindle Surface Grinder

Horizontal Spindle Surface Grinder

Horizontal Spindle Surface Grinder

Horizontal Spindle Surface Grinder

  • Surface grinder with direction and control of movements indicated by arrows. Wheel “A” controls downfeed “A”.  Large wheel “B” controls table traverse “B”. Wheel “C” controls crossfeed “C”

Electro-magnetic chuck for surface grinder. The stop strips at the back and left side are adjustable for height and can be used to align work.

  • Top surface of chuck must be reground when remounted.  N.B. Chuck must be switched on.

Periodic deburring of the chuck with a fine grit oilstone, is a good practice.

Vacuum chucks such as this one are considered good for thin and non-ferrous work.

Using a laminated vee-block to grind the angular surfaces on a Vee-block.

The Coolant

  • The coolant used for grinding is often water based.
  • Coolant must be kept clean with ‘cyclonic’ or other filtering equipment.  Dirty coolant may produce ‘fish-tail’ marks on the ground surface.
  • Coolant must be kept free of hazardous bacteria.

Vertical Spindle or “Blanchard” Grinder.

Vertical Spindle or “Blanchard” Grinder.

Vertical Spindle or “Blanchard” Grinder.

Cylindrical Grinder

  • Two dead centers are  better than revolving or live centers when precision cylindrical grinding.
Cylindrical Grinder

Cylindrical Grinder

Cylindrical form grinding.

  • Typical application of the angular center-type grinding machine, showing angled grinding wheel finishing both diameter and shoulder.
  • Sketch of traverse grinding with interrupted surfaces. Wheel should always be wide enough to span two surfaces or more at once.
  • Straight plunge grinding, where the wheel is usually wider than the length of the workpiece feature.
  • Taper grinding with the workpiece swiveled to the desired angle.
  • Angular plunge grinding with shoulder grinding. Note the dressing of the grinding wheel.

 Principle of internal cylindrical grinding.

internal cylindrical grinding

internal cylindrical grinding

 How do we grind round parts without centres?

  • The Process of ‘Centerless Grinding’ allows us to grind cylindrical workpieces without centres.  The workpiece revolves between two wheels.  One wheel is called the ‘regulating wheel’ the other is the ‘grinding wheel’.
  • Principle of the centerless grinder – The grinding wheel travels at normal speeds, and the regulating wheel travels at a slower speed to control the rate of spin of the workpiece.
centerless grinder

centerless grinder

3 Basic Methods of Centerless Grinding

  • Through-feed – Long bars
  • In-feed – Parts with shoulders
  • End-feed – Tapers

Through-feeding of long bars: The regulating wheel is set at a small tilt angle to feed the bar between the wheels.

In-feeding in the centerless grinder: The regulating wheel is also set at a small tilt angle to keep the workpiece against the end stop

Principle of internal centerless grinding.

Principle of internal centerless grinding.

Principle of internal centerless grinding.

Universal tool and cutter grinder.

Universal tool and cutter grinder.

Universal tool and cutter grinder.

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3 Responses to Grinding Machines and Equipment

  1. gauravengineeringworks says:

    I appreciate your current great effort a lot. It helped us in a great many ways. The knowledge anyone provide is extremely supportive.

  2. Grinding machine is very helpful to the mechanical engineer to give a finishing touch to the things.

  3. Pingback: Thought Newer Marlins were getting better! - Page 2

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