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Saturday, 6 August 2011

Winding Efficiency | Factors of Winding Efficiency | Reasons for Lower Efficiency

Winding Efficiency :   The ratio of actual production and calculated production is called winding efficiency. It is expressed  as percentage. The efficiency of a highly automated winding operation is calculated by modification of the mathematical model developed for a similar problem.





Winding efficiency depends on the following factors 
  • Spindle or drum speed: the higher the speed the more is the winding efficiency
  • Yarn Count: yarn count is proportional to winding efficiency
  • Yarn quality: if yarn quality increases then winding efficiency increases
  • Worker efficiency: the more efficient the work is the more efficient the winding will be.
  • Humidity: humidity is reciprocal or inversely proportional to winding efficiency.
  • Work load per worker: If the work load on each worker is less then efficiency of winding will be more.
  • Maintenance and over hauling: if the maintenance and over hauling of the machine is not correct then efficiency of winding will decrease.
  • Power failure: if power failure rate increases the winding efficiency will decrease.
  • Creeling time: the more the creeling time the less is the efficiency.
  • Doffing time: the more the doffing time the less is the efficiency.
  • Capacity utilization: when capacity utilization decreases then efficiency increases.
Reasons for lower efficiency 
  • power failure
  • improper maintenance and over hauling
  • natural disasters
  • less skilled labor
  • labor unrest
  • shortage of machine parts and raw materials
  • strike
  • maintenance problems


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