Mance: Quarry Industry of Southern Indiana 



145 



no figures as to cost till a stated project is laid before us and our engineering 

 department has gone into the matter. If you care to fill out the enclosed 

 blank we will gladly make an estimate. 



The blanks were filled out and sent and the following data 

 were submitted, including a plan of a 10-ton per hour plant: 



Dear Sir: 



The machinery required will be as follows, together with weights and 

 prices : 



Equipment 



Pounds 



Cost 





23,000 

 4,000 

 1,700 

 1,600 



$1,134 

 1,000 

 201 

 350 

 90 

 23 

 55 



$2,853 



One fine crusher 



One 10x6 bucket elevator 38 ft. 6 in 



Pulleys. 5 in all 



Shafts, boxes, and set collars 





Belts, 4 in all 





Total cost of plant without buildings and bins, 





These figures lack the freight, cost of installation, and the work of build- 

 ing plant and bins. To the above figures should be added the following: 



Freight $ 205 



Building 850 



Installation 300 



Bins 250 



Total $4,458 



This would be a fair estimate on a small plant that would handle about 

 100 tons per day. The power necessary to drive such a plant would be about 

 40 to 45 horse-power. The cost of crushing in such a plant should not ex- 

 ceed the following figures: 



Interest and depreciation, 6 per cent and 9 per cent respectively. .$ 668.70 



Taxes and insurance, 2 per cent 89. 16 



Labor 2,230.00 



Power at 2 cents per kilowatt hour 1 , 848 . 00 



Wear and repairs 420 . 00 



Oil and waste 35 . 00 



Total year's operating expense $5 , 290 . 86 



With a total year's output of 30,800 tons the cost per ton of the product 

 turned out of the mill should be about 17.5 cents. To this must be added the 

 cost of advertising, and of the office and sales force. With these put at 

 30 cents per ton, it still brings the cost of the product well under 50 cents 

 per ton. 



XO 



