Wednesday, October 2, 2019

Concepts of Total Productive Maintenance -Topic - 3 : Difference between TQM and TPM Concepts

Difference between TQM and TPM

Total Quality Management and Total Productive Maintenance are often used interchangeably. However, TQM and TPM share a lot of similarities, but are considered as two different approaches in the official literature.

Focus of Total Quality Management Concept

TQM attempts to increase the quality of goods, services and concomitant customer satisfaction by raising awareness of quality concerns across the organization.
TQM is based on some specific corner-stones:
Design excellence,
Product excellence,
Process excellence,
Marketing excellence,
Customer experience,
The organizational environment,
Leadership commitment that guides the organization, and
Commitment to excellence throughout the organization at all levels.

Focus of Total Productive Maintenance Concept : 

TPM focuses on operational excellence through achievement of 4 Zeroes such as
Zero Breakdowns
Zero Defects
Zero Accidents and
Zero Losses
TPM is aimed at the overall pursuit of production efficiency, improvement to its maximum extent. By preventing equipment break-down, improving the quality of the equipment and by standardizing the equipment (results in less variance, so better quality), the quality of the products increases.

The basic difference between these two programs can be sighted in a summarized tabulated form as  shown below : 
Table. 1.  Difference between the approaches - TQM   and TPM

Apart from differences TPM and TQM program also carries certain similarities between them : 

    • Both the management improvement programs uses tools like employee engagement and employee engagement, benchmarking, target setting, data capturing and trend reviewing, systematic management review mechanisms and fact/ data based decision making etc.
    • Both the programs demands highest degree of top management commitment for their success.
    • Training of employees and engaging them with small grouped activities related to continuous improvement. Both the programs adopts reward and recognition mechanism to ignite employee enthusiasm for participation in improvement initiatives.
    • Both the programs are long term vision oriented, takes quite a good time (approximately 3 to 5 years) for their implementation, call for a higher level of accountability and commitment from the regular employees, beyond their job responsibility. Once implemented bothe the programs are to be practiced for life time to  be able to receive continuous results.
TQM and TPM can both result in an increase of quality, performance, and productivity and customer orientation and both the concepts if deployed holistically in any organization, the organization receives immense amount of benefit out of it. However, the way of persuasion towards both concepts  are different different. But from experience I must say TPM can be seen as a way to help achieving the goals of TQM.

In my next blog I will talk about concepts of 12 step TPM Implementation Program ( Link:12 Steps of TPM Implementation Program) and  TPM pillars. ( Link : 8 Pillars of TPM)



Amazon link of some TPM referance books: 
1. "Introduction to TPM: Total Productive Maintenance" Book by Seiichi Nakajima :  https://www.amazon.com/Introduction-TPM-Productive-Maintenance-Preventative/dp/0915299232
2. " TPM in Process Industries (Step-By-Step Approach to TPM Implementation) by Tokutaro Suzuki : https://www.amazon.com/Process-Industries-Step-Approach-Implementation/dp/1563270366

3. " TPM for supervisors (The Shopfloor  Series)" : https://www.amazon.com/TPM-Supervisors-Shopfloor-Productivity-Press/dp/1563271613

Tuesday, October 1, 2019

Concepts of Total Productive Maintenance - Topic - 2 : A Brief History of Total Productive Maintenance


A Brief History of Total Productive Maintenance


Long time after first industrial revolution (initiated in Great Britain, in the mid of 18th century, in between 1820 to 1840), the manufacturing process based industries from Europe, United States, Germany Russia and most of the other countries realized that the continuous manufacturing processes required for mass production are completely dependent on a synchronous interaction of human and machine. It is in did, needless to mention that with the evaluation and advancement of automation, equipment dependency also increases. Overall productivity thus, is a result of high performing machine operated by a skilled operator.



Figure 1. A Roberts loom in a weaving shed in 1835. Textiles were the leading industry of the Industrial Revolution, and mechanized factories, powered by a central water wheel or steam engine. (Picture collected from Wikipedia link : https://en.wikipedia.org/wiki/Industrial_Revolution)

After Second World War was concluded in Sep’1945, Japan also focused to turn around their economy by strengthening business networks around the world. They were supported by United States and a good amount of knowledge exchange between Japan and US was visible at that period. Many industrial experts, statistician s and subject matter experts travelled form US to Japan and Japan with its unique managerial expertise adopted all the concepts and developed unique Japanese management systems, most popular among are Total Quality Management and Total Productive Maintenance.


When the concepts of maintenance first entered in Japan from United States approximately around 1950 -51 it was used to mean preventive maintenance. Earlier the concept of breakdown maintenance (i.e. repairing the machine after breakdown occurs) was quite popular. In between 1950 s to till 1960 s various other aspects of maintenance were also introduced in Japan, namely Productive Maintenance (PM), Corrective Maintenance (CM), Maintenance Prevention (MP), Reliability Engineering (RE), Maintainability Engineering etc. along with which idea of Preventive Maintenance form Unitd States became quite popular among Japanese manufacturing experts. Nippondenso was the first company to introduce plant wide preventive maintenance in 1960. Preventive Maintenance is the concept wherein, operators produced products using machines and the maintenance group was dedicated with work of maintaining those machines. But with the automation of Nippondenso, maintenance became a problem as more maintenance personnel were required. So the management decided that the routine maintenance of equipment would be carried out by the operators themselves. Thus modern maintenance concepts were brought in to existence by modifying the American traditional idea of  Preventive Maintenance combining it with unique Japanese perspective and then tailoring it to the Japanese ways of management.

From 1960 s through 1970s concepts of traditional maintenance underwent numerous modifications which added value and gradually the concepts of Total Productive Maintenance came into picture.
Nippondenso which already followed preventive maintenance also added Autonomous Maintenance which was taken-up  by production operators. The maintenance personnel’s  went in the equipment modification for improving machine reliability, thus paving the ways to  the concepts of Maintenance Prevention. Preventive Maintenance along with Maintenance Prevention and Maintainability Improvement brought Productive Maintenance principals. The target of Productive Maintenance now was to deliver plant and equipment effectiveness to achieve optimum life cycle cost of machineries. Concepts of Productive maintenance combining with total employee involvement, management focus towards effective production process and management structure was framed as TPM or Total productive maintenance. Nippondenso Co. Ltd. , a TOYOTA group company, because of it’s unique initiatives in the path of enriching TPM, was awarded the distinguished plant prize for developing and implementing TPM, by the Japan Institute of Plant Engineers ( JIPE ), for the 1971 fiscal year. Being able to recognize the value of TPM   practices for the coming era of automation since 1970 s to till date Japan Institute of Plant Engineers and Japan Institute of Plant Maintenance are promoting the concepts of TPM. The TPM Awards are promoted by the Japan Institute of Plant Maintenance (JIPM) and approximately 2,000 plants have received TPM Awards both in Japan and outside since the inception of the awards.

Some of the remarkable events are listed below (Following details are taken from the reference Link: https://www.jipm.or.jp/en/company/history/ ) : 

1961
The Japan Management Association (JMA) establishes a Plant Maintenance Committee.
1964
A system for awarding PM Awards is established.
1969
The Plant Maintenance Department is dissolved and the Japan Institute of Plant Engineers is established.
1971
The concept of plant maintenance with total participation (Total Productive Maintenance) is proclaimed.
1981
The Japan Institute of Plant Maintenance is launched, following approval from the Ministry of International Trade and Industry as charitable corporation.
1989

  • The definition of TPM is revised.
  • The Society of Plant Engineers Japan is established.

1990
The Japan Association of Maintenance and Service Contractors is launched.
2005
JIPM Solutions company limited is separated and transferred from JIPM as a profit-seeking corporation.
2012
JIPM was approved as a public interest incorporated association by the prime minister.



Amazon link of some TPM referance books: 
1. "Introduction to TPM: Total Productive Maintenance" Book by Seiichi Nakajima :  https://www.amazon.com/Introduction-TPM-Productive-Maintenance-Preventative/dp/0915299232
2. " TPM in Process Industries (Step-By-Step Approach to TPM Implementation) by Tokutaro Suzuki : https://www.amazon.com/Process-Industries-Step-Approach-Implementation/dp/1563270366
3. " TPM for supervisors (The Shopfloor  Series)" : https://www.amazon.com/TPM-Supervisors-Shopfloor-Productivity-Press/dp/1563271613