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皮马(Pima)矿山位于阿利桑那州的土桑西南20哩,在墨西哥边境以北45哩。从它所处位置的山侧可俯瞰土桑,故全厂基本上可利用重力自流。1965年4月扩建,这样将三倍于现在矿山的产量达18000吨。按这种速度,估计有足够用20年的矿量。扩建将包括一个新的破碎厂。该厂将有一台1350毫米旋迥破碎机,2台西蒙斯标准圆锥破碎机和5台西蒙斯短头圆锥破碎机。在旋迴破碎机与第二段破碎机中间设置24000吨的原料堆。
The Pima mine is 20 miles southwest of Tucson, Arizona and 45 miles north of the Mexican border. From the mountain side of its location overlooking Tucson, so the whole plant can basically use gravity gravity. Expansion in April 1965, so that it will triples the current mine output to 18,000 tons. At this rate, it is estimated that there will be enough ore for 20 years. The expansion will include a new crushing plant. The plant will have a 1350 mm rotary crusher, two Simmons standard cone crushers and five Simmons short head cone crushers. In the gyratory crusher and the second paragraph crusher set up 24000 tons of raw materials.