Man Machine Chart

By | December 15, 2021

Man machine charts are used to improve productivity. A man-machine chart displays relationship between manual work performed by operators and machine involved in a manufacturing process graphically. You can create Man-Machine Chart in MS Excel.

The worker and machine process chart (Man-machine chart) is used to study, analyze, and
improve one workstation at a time. The chart shows the exact time relationship between the working cycle of the person and operating cycle of the machine. These facts lead to utilization of both worker and machine time, and a better balance of the work cycle.

Man-Machine Chart operations consist of three main steps:

  1. GET READY, such as putting material in the machine.
  2. DO (Doing the work), such as drilling a hole.
  3. IDLE (Waiting for an operation to be completed or being idle or having no job to do).

Man-Machine Chart Excel Template:

Man Machine Chart can be easily created in MS-Excel without any skills. You can create Man and Machine template charts by watching demo below:

Man-Machine Chart Pdf

Download pdf about this topic from here

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Examples of Man Machine Chart:

Worker-Machine Chart for a Coffee Store

The customer, the clerk, and the coffee grinder (machine) involved in this operation. It required 1 minute and 10 seconds for the customer to purchase a pound of coffee in this particular store. During this time the customer spent 22 seconds, or 31 percent of the time, giving the clerk his order, receiving the ground coffee, and paying the clerk for it. He was idle during the remaining 69 percent of the time.

The clerk worked 49 seconds, or 70 percent of the time, and was idle 21 seconds, or 30 percent of the time. The coffee grinder was in operation 21 seconds, or 30 percent of the time, and was idle 70 percent of the time.

Example of Worker Machine Charts

Summary

Example of Worker Machine Charts

Worker-Machine Chart in printing press:

A workshop engaged in printing patterns on plastic matt. The work done according to customer orders. The shop has two identical printing equipments that can print only one side of a matt at a time. The matt have dimension of 60×40 cm. A customer demands 3 matt’s with identical patterns on both sides.

The printing process is simple; the matt placed in the machine and 30 minutes allowed to print the pattern. If the matt kept in the machine less than 30 minutes then the colors fade. If kept more than 30 minutes; then the colors are too strong.

The necessary operations and the required times shown below.

Placing one side of a matt ………………………………… 15 minutes
Printing either side. ………………………………………… 30 minutes
Turning the matt. ………………………………………….. 5 minutes
Removing the matt. …………………………………………15 minutes

By the help of Man-Machine charts, show the best way for completing the printing of 3 matt’s.

A method can be as follows:

Man-Machine Chart Excel

The best working method is as follows:

Man-Machine Chart Excel