Push and Pull Essay

5885 Words Nov 9th, 2007 24 Pages
University Of Windsor
Course Name - Production Systems Analysis
Course # 91-413

Pull and Push Systems: An In-depth Look

Jegapiragasam Jyapiraharan 100 799 376
Mohanty Abhishek 101 421 155
Farsed Ibrahim 100 646 715
Yan Zhang 100 995 363
This report examines the different production planning methods being used in the current manufacturing environment. The report focuses on Push and Pull systems. The report discusses the advantages and disadvantages of each method and also looks at JIT and MRP as examples of Pull and Push systems respectively. The report also discusses two real world scenarios where these systems have been implemented successfully. In conclusion this
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2. Sequential pull system – Sequential Pull Systems are also called B-type pull systems and are used when there are too many part numbers to hold a separate inventory or supermarket for each. Products are made to order and the entire inventory is minimized. The production control department schedules the production of each part by using a Heijunka board. A First In First Out production sequence is maintained for each product. This type of pull system requires a lesser amount of inventory and produces a lot less waste than Supermarket pull systems, but it also requires high process stability, short lead time and a strong management to function correctly.
3. Mixed Supermarket and Sequential Pull systems – In this kind of pull system, supermarket and sequential pull systems are used side by side. A mix system maybe used when small number of part numbers account for majority of the production volume and a large mix of part number form maybe 20% of the production volume. In mix system it is really difficult to balance the work load and implement kaizen activities; therefore it requires a great amount of discipline to work with a mixed system.
The objectives of a pull system are –
1. Control and balance the flow of material and resources.
2. Eliminate material wastage.
3. Eliminate the wastage of space.
4. Eliminate excess

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