大同铸石厂在原有热压铸石托辊基础上,又试制成功了一种新产品——SBA 铸石托辊。它采用耐磨的热压铸石管体、国内最先进密封型式、优质材料(锂基润滑脂、尼龙密封件等)先进制造工艺,使托辊质量大为提高。SBA 铸石托辊各项性能经煤炭科学院上海研究所托辊试验室测定,均比 TD75型托辊有了较大提高,其中某些性能已达到或接近国外托辊。(见附表) Datong stone factory in the original hot cast stone roller, based on the successful trial of a new product - SBA cast stone roller. It is made of wear-resistant hot-dip tube, the most advanced sealing type, high-quality materials (lithium-based grease, nylon seals, etc.) advanced manufacturing technology, the roller quality greatly improved. SBA cast stone roller by the Shanghai Institute of Coal Research Institute of the roller test room, than the TD75-type roller has been greatly improved, some of which have reached or approached the foreign roller. (See Schedule)