Saving potential of small diameter
spindle wharves
by Dr. H.R. Sheikh,
Professor Emeritus, Textile Institute of Pakistan.
Survival of a company and market success is proportional to the
confidence and satisfaction of the customer who has the right to
demand quality. Quality is timely compliance to defined
requirements.
Accordingly, the spinning mills perform the task of
manufacturing yarn conforming to the quality and performance
criteria of the end-user at a commercially competitive and
industrially profitable output rate.
In order to manufacture yarn at competitive price, the
spinning mills must control the product cost. In fact the
component of the product cost over which the spinning mills
exercise effective control is the conversion cost.
The details of the conversion cost of a typical spinning mill
comprising of 19200 spindles are given in Annexure-1.

It should be noted that the cost of utilities, i.e. electric
power is the highest at 41.17% as compared to other components.
Savings in the cost of electric power can be achieved by the use
of small diameter spindle wharves as calculated below:
1. Saving in Electric Power Cost
Electric Power consumed per day machines =
25×24×0.80×0.85=408 KWH
Assuming Power Tariff @ Rs 11.0 / KWH
Cost of Electric power consumed per machine per day:
408×11= Rs= 4488

Saving in Electric Power cost per LB. of yarn = Rs 1.15
Saving per 40 machines (19,200 spindles) /
day: 1.15×1084.4×40 = Rs 49,882.40
Saving in conversion cost
On account of higher spindle achieved with small diameter
spindle wharve, the machine production also increases resulting
in saving of the conversion cost as calculated below:

Summary
Saving in electric power cost / day = Rs 49,882.40
Saving in conversion cost / day = Rs 264,593.60
Total savings per day = Rs 314,476
Total savings per annum / 300 working day = Rs 94,342,800.
In conclusion, it may also be mentioned that the thin walls
of the small diameter wharve are not a disadvantage. The
manufacturers use high and adequate quality steel for
maintaining durability and prevention of wear by spindle tapes.

Conversion Cost
Approximate total project cost of a typical spinning mill
comprising of 19,200 spindles is assumed at Rs 700 million.
Financial Plan at debt / Equity ration of 60/40 works out as
follows:
Debt = Rs 420 million
Equity = Rs 280 million
Supplier Credit= Rs 300 million
Sponsors Contribution = Rs 140 million
LMM loan = Rs 50 million
Bridge loan = Rs 140 million
LT-TFC = Rs 70 million.
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