S.M. RASHADUR RAHAMANFollowProduct Developer at Li và Fung Limited || 3 chiều Product Design and Development
SMV is the mostly used term in Industrial Engineering. This term is used in every manufacturing industry, since Bangladesh is the country of garment manufacturing industries so SMV is the most familiar term here.
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Industrial engineers are understanding this term very easily cause they are learning this type of terms during their study but the non IE peoples are failing khổng lồ understand clearly and I’m writing few words for those who are willing to learn but failing lớn underst& due lớn complicacy :
• What actually SMV mean ? • What is the use of SMV in Garment Manufacturing Industries ? • How SMV can be determined ?
Out of above 3 questions today I’ll discuss “What actually SMV mean ?”
Abbreviation of SMV is Standard Minute Value which means every specific job is required lớn be completed within a specific period of time. Nobody is allowed lớn take unlimited time to complete a specific job so the value of calculated accepted time for a specific job is basically known as SMV or Standard Minute Value.
When quotation had been asked for Jatrabari Flyover from the contractor it had also been asked how long it would take to lớn complete the project. The contractor informed 1 year time required to complete 5 KM long Jatrabari Flyover with the necessary amount of money. Here a question is coming how contractor determined that 1 year time is required khổng lồ complete this 5 KM long Flyover ?
In the same way if we could calculate how much time is required to make a Shirt or a Pant in a garment manufacturing industries then we can calculate how many Shirt can be made in a line per day and how much time required khổng lồ complete a specific amount of quantity khổng lồ meet buyer’s shipment schedule.
On the other hvà, how much Shirt or Pant required lớn be produced to lớn meet per day per line expenses. That is also required lớn be calculated và cost per minute is calculated through SMV.
So SMV or Standard Minute Value is such an important term which is determining every important process of every manufacturing industry.
The second question was “What is the use of SMV in Garment Manufacturing Industries ?”
• SMV is used for determining Workers Efficiency. • SMV is used for determining Efficiency of Production Line. • SMV is used to lớn for determining what should be the Production Target for the specific operation & for the production line of a specific style. • SMV is used for determining Loss of Time during production and Loss of Productivity. • SMV is used for determining Capacity of Lines as well as full factory or unit. • SMV is used for determining Production Cost.
Above sầu are the major operational functions done with the help of SMV.
The Third question was How SMV can be determined ?
SMV is basically a measurement task of a work nội dung. In garment manufacturing industry every operation is measured until a complete body is ready for shipment.
Estimating SMV in garment manufacturing industries is really an important task. It could be determined by GSD (General Sewing Data) which is a software & can give you more or less accurate calculation very nearer và acceptable result.
GSD (General Sewing Data) is a software which is having data base of various sewing process và accepted average TMU of each process. When data is asked from the GSD let’s say for Shirt and it will ask you some questions lượt thích Formal Shirt or Casual Shirt, European Size or USA kích cỡ, It will also ask whether any special operation is required for that specific styling or not, fabric, SPI, Operation Length ect and based on that, GSD will generate SMV what is more or less accurate và accepted data.
Another process is khổng lồ take data directly from Machine, Operator và from every operation. Every single operation is required to lớn be noted for a specific style. Activities done by the operator like aligning parts, placing in sewing machine, handling curves during sewing ect. required to be noted carefully.
Aligning parts, placing those parts in sewing machine, handling curves during sewing are the process done by the operator và all together these processes are called Operation.
Time taking for the operation is called Cycle Time và the data collected during Process, Operation & Cycle Time are called Synthetic Data. • SMV = Basic time + (Basic time * Allowance) Data for every operation required lớn be noted couple of times to have sầu an average value. Value of data is assessed by TMU (Time Measuring Unit) which is calculated 1 TMU = 0.0006 minute.
Mathematical determination of SMV To proceed with the mathematical determination of SMV, need to lớn know clearly that SMV or Standard Minute Value is the value of TMU or Time Measurement Unit of an operation only.
No other value is added or included with this value. It’s simply an quality value of an operation from starting to lớn complete means Pick-up, Operate và Dispose. In garment manufacturing industry Pairing the Parts, Aligning in the Machine & Sewing are the basic operations. TMU of a specific operation comparing with an acceptable standard is SMV.
To make the calculation more accurate TMU of an operation is taken couple of times which is known as Cycle Time & this Cycle Times are then divided by No. of Cycle khổng lồ have sầu an average value. This average value is then called Observed Time.
Some of the following important things are required lớn be observed during operation & that is the behavior of the operator which means :
Whether the operator working actively ? Whether the operator is working lazily ? Whether operator is careless or careful lớn perform the operation ? Whether the operator is showing his best performance during visit of his trùm ? Whether the operator is afraid during visit of his trùm và trying to perkhung better ? Whether the operator is performing as usual ? Whether the machine is ok khổng lồ perkhung the operation ? Whether the sitting arrangement is comfortable enough lớn persize the operation ? Whether the atmosphere is comfortable enough lớn perform the operation ?
Performance of an operator is depending on above sầu situations và circumstances and all together these situations và circumstances are called Rating. Rating is basically an assessment of activity comparing with a standard. Standard rating of performance is denoted as 100% on performance rating scales.
From above sầu discussion we found following 3 important factors and these are :
Cycle Time Observed Time Rating
These factors are the main element for mathematical calculation of SMV and again we need to lớn come baông chồng khổng lồ the point which is :
TMU of a specific operation comparing with an acceptable standard is SMV.
So we can define in a way that when cycle time of an operation is observed with TMU and value of the same are compared with Rating và result of this is basically SMV .
So according khổng lồ above
SMV = (Total Cycle time / No of cycle) x (Observed Rating * Standard rating) / Standard rating