Education

Lean Tools to cut waste

TAKT time
Lean Management Systems work on a rhythm. The whole organization works on the rhythm provided by the customer. This rhythm is known as the TAKT time of the system. This is the ultimate pull scheduling system anyone can think about.

Takt time can be first determined with the formula:
T = Ta/Td

Where
TT = Takt time,
Ta = Net time available to work,
Td = Time demand (customer demand),

Net available time is the amount of time available for work to be done. This excludes break times and any expected stoppage time (for example scheduled maintenance, team briefings, etc.).
For example, think you work 8 hrs a day for 5 days a week. For a week you have a demand of 100Pcs. Then your calculation will be as follows.

Takt = 8 x 5 x 60 minutes / 100 Pcs
= 24 minutes

What is the meaning of this? This means that the time given by the buyer to produce a finished PC is 24 minutes. This does not mean that you should produce 2Pcs in every 48 minutes. It doesn't mean that the system should produce an item in less than 24 minutes. Both these scenarios can lead to inefficiencies and wastes in the system.

If we aim to produce 20Pcs a day we have no need to produce an item every 24th minute. In this case the system may not run smoothly. For example, it might produce 12Pcs in the first 7 hours and the remaining 8Pcs in the last hour (of course if they have enough capacity). This is not the aim of a lean manufacturing system. So you can understand that not only the work, but also the way the work is carried out is important in lean management.

If we produce a piece of that particular product in 20 minutes what will be the end result? You will either produce quantities greater than required or you might have an idle time. Over production and waiting are wastes in lean manufacturing. Both will lead to higher WIP accumulation and related problems.
Advantages of sticking to the takt time.

  • It will give you the rhythm in which the system should operate
  • Production is smoothly planned and operations will be carried out without interruptions
  • The system is in synchronization with customer requirement
  • Pull scheduling is enabled
  • No over production
  • No rush hours in work
  • WIP reduced and problems in the system will be revealed

Takt time principle will work very well in cases where the demand can be traced easily. In a system where there is a fluctuating demand the takt will change continuously on the basis of the demand.

Top to the page  |  E-mail  |  views[1]
SocialTwist Tell-a-Friend
 
Other Education Articles
PCJT is the Gold Sponsor for Java World Congress 2010
Colombo University MBA students conduct special presentations
UTS Foundation Studies: Pathway to University in Australia
Imalka - Hospitality's bright star at ICHM
Ten of the best ways to save money at university
ACHIEVERS: THE SHINING STAR OF CIMA
Piano teaching could be a fun activity
SLIM intake students for PCM
AUSTRALIA - MELBOURNE - MONASH
Emphatic Empathy in Customer Service
College students get ratted on water
Marga excels in Statistical Analysis
Kumon unlocks the potential in every child
Lean Tools to cut waste
A solid CIMA foundation with Wisdom
New developments at the English Language Education Centre
GCSE results: Pupils spurn languages for sciences
AOD graduate set to make her mark in Sri Lankan Interior Design
Oxford College: ABE course provider in Sri Lanka
NIBM offers Degree Programmes in IT, Management and HRM
Graduation ceremony at ICBT
With Imperial College learning is an exciting experience
After A/Ls headstart a globally recognized Healthcare Degree at IIHS
University of Sydney: Renowned for excellent learning opportunities
Counselling at Edlocate with a significant difference
Engineering after A/L 2010
BBS offers scholarships for October intake
An agenda for educational reforms
APIIT TANTALIZE 2010: Talent arises and glory awaits…!
ICA: Gateway to a rewarding career as a Chartered Accountant
ESOFT - Sri Lanka's No. 1 for BIT is now more affordable
Barnardo's criticises 'unfair' state school system
CINEC Maritime Campus is the place to be
American International School bags 17 Gold Medals from Australia!
61 World Prize Winners at Edexcel Awards this year
Should I buy the cheapest school uniform?
Boost your self-confidence
CAT 2010: Practice can make the difference
Champion the universal language of sports

 

 
Reproduction of articles permitted when used without any alterations to contents and a link to the source page.
© Copyright 2010 | Wijeya Newspapers Ltd.Colombo. Sri Lanka. All Rights Reserved.| Site best viewed in IE ver 6.0 @ 1024 x 768 resolution