Answer added by: Ahamed Shareef Divisional Head - Quality Assurance 2 years ago
Efficiency of measure of resource utilization ratio. In simple terms it is Outputs/Inputs.
It can be any resource - Time, Material, Manpower, Machine, etc.
Depending the resource you are measuring and unit you are using, you should be able to measure the efficiency. In production also, you should be able to measure -
Good product / Mateial used (Units can be Kgs, Nos, etc)
Equipment utilization = No of hours produced / No of hours available
OEE is a parameter, which helps production department to understand overall effectiveness - This covers Quality, Maintenance, Production parameters and gives one index.
This can be measured for single machine as well as for the overall plant.
Answer added by: Kuldeep Tanwar Sr. Manager - Engineering & Development 2 years ago
This is with example hope give you better clearity.
OEE – Overall Equipment Efficiency is Comparison between “actual output” and “should-be output”.
Availability Rate X Productive Rate X Quality Rate
i.e Scheduled Loading Time =60 Min X8 Hrs –40 Min =440 Minutes
(40 Minute is break time)
Available Time =440 –80 Minute =360 Minutes
80 Minutes lost due to changeover (45 min), Breakdown & Repair (25 min), Broken Tool Replace (10 Min)
Productive Rate =420 pcs produced X40 Sec/pc
(40 sec/pc is engineered cycle time) =16800 sec /60 =280 Min of Productive Time
Availability Rate = (Available Time / Scheduled Time) =360 /440 =0.82 =82 %
Productive Rate = (Productive Time / Available Time) =280 /360 =0.78 =78 %
Quality Rate = (Acceptable Quantity / Total Quantity) = (420 -30) /420 =390 /420 =0.93 =93 %
OEE =0.82 X0.78 X0.93 =0.5848 =59.48 %
Answer added by: mohamed sabeen Senior HSE 2 years ago
In order to calculate a production line efficiency you need to obtain data of the number of pieces and the number of hours worked. In addition, you will also need to obtain the piece/min data by conducting a time study at the front and end of line (ensure that they are equal). Following the collection of this data you can approach it in this manner: Number of pieces total / number of minutes of production= Avg. pieces per min Now... take your (Avg pieces per min/actual piece per min count) x100= efficiency percentage
Answer added by: Sachin Gupta Assistant Manager in Plastics Division 2 years ago
It can be calculated with the following key factors.
1. Machine availability = Actual Hours / Planed hours
2. Quality = Accepted Pcs/ Total Production
You will get production efficiency.
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