AUTOMOBILE TUBES (ALL RANGES OF TUBES)

In  the  manufacture of inner tubes the  plant  required  is fairly  simple  and inexpensive, the principal outlay  being  for wrapping machines and mandrils.  It is essentially a trade  which can  be embarked upon in a large way.  It is necessary to  go  in for  the  business thoroughly if it is desired  to  compete  with established  manufacturers, who turn out thousands of  tubes  per week.   The work should be so arranged that the  various  process
are  continuous,  as it is only by this method  that  the  lowest labour  costs can be obtained.  The operators are cutting  strips from  sheet, building up on the mandrils, wrapping,  vulcanizing, stripping,  bevelling,  fitting valves and  making  joints.   One particular  machine  worth  installing  is  the  tube  bevelling, grinding  and  buffing  machine  made  by  a  well-known   rubber
machinery  manufacturing  firm.   It  is  capable  of  all  three operations, does not take up much room, and is not too expensive.  Rubber  machine makers would also probably supply polished  steel mandrils for inner tubes, but as previously pointed but these are too  heavy for handling, aluminium is far more suitable  for  the purpe  mentioned.  With regard to the pump for blowing  up  the tubes,  this we think would facilitate matters if it were  driven by  a  small  electric  motor,  fitted  with  a  pressure  gauge,
registering up to, say 100 lb. per square inch.  The presence  of any  grit,  dust or dirt in the compound will certainly  be  very detrimental  to  the finished tubes, and  precautions  should  be taken up to seet that the operations are carried out under  clean conditions.   All tables and benches should be covered with  zinc or aluminium sheet in order to prevent wood splinters, etc., from entering the compound.

PROJECT REPORT COVERS:

•     Introduction
•     Uses and Applications
•     Properties
•     Market Survey with future aspects
•     Present Manufacturers
•     B.I.S. Specifications
•     Manufacturing Process with Formulae
•    Cost Economics with Profitability Analysis
•     Capacity
•     Land & Building Requirements with Rates
•     List & Details of Plant and Machinery with their Costs
•     Raw Materials
•     Details/List and Costs
•     Power & Water Requirements
•     Labour/Staff Requirements
•     Utilities and Overheads
•     Total Capital Investment
•     Turnover
•     Cost of Production
•     Break Even Point
•     Profitability
•     Land Man Ratio
•     Suppliers of Plant & Machineries and Raw Materials.