German based Hazemag has been in existence for 75 years, making it the oldest impact crusher manufacturer in the world. The company’s mineral processing division, Hazemag and EPR, specializes in horizontal flow impactors. These crushers are with units that can handle feed sizes ranging from 40-inch X 40-inch to those boasting a feed size of 7-feet x 7-feet. According to Ed Kelleher, vice president of sales for Hazemag and EPR’s US division, while the company makes various sized units, all machines are ordered and built based on exact specifications and requirements for the customer. “Based on the feed size (opening requirements), the tonnage required and feeding method, we can make our machines larger or smaller and change up components to accommodate any application,” Kelleher told NAQN. “Some are built to be fed by smaller front end loaders while some can handle up to 250-ton trucks.” Production capacities also run the gamut — from 400 tph up to 3,000 tph, he added.  | The easy mobility of the Hazemag (formerly branded the DBT) crushing plant allows the crusher to be brought to the material, rather than having to haul the material to the plant. |
When Kelleher set out to supply a horizontal impactor for the limestone division of The East Fairfield Coal Co. (EFCC), of North Lima, Ohio, the first thing he did was ask the company’s general manager Hugh Gunn, for a list of requirements. Gunn replied with two main needs-ease of feeding and low overhead height. “We have two underground limestone mines and needed a crusher that was capable of being operated in small spaces,” said Gunn. “We also needed to make sure that the crusher could keep up with the amount of rock we blast each day. That includes some larger pieces that we did not want to have to reduce before feeding into the machine.” Mobility was another need. The previous crusher used by EFCC was a stationary unit. Therefore, it resulted in a significant amount of down time when the unit had to be relocated closer to the blasting site. That process took around two days to complete. The Hazemag 1318 that Kelleher recommended was a tracked crusher that can quickly and easily be pulled deeper into the mineshaft in a matter of minutes. The low maintenance characteristic of the Hazemag 1318 was another selling point. The crusher is a self-greasing crusher with a series of sensors built into the bed and tail that are designed to shut the machine off in the event of a processing problem. A programmable logic control automatically operates the entire system, freeing up EFCC’s employees to focus on mining and feeding limestone into the unit. EFCC was so impressed with the functionality of the Hazemag crusher, it purchased the powerful unit shortly after seeing a demo in 2005. Two years later, they added a second 1318 horizontal impact crusher at a second mine. “As more customers like The East Fairfield Coal Co. have come to experience the quality of Hazemag’s machinery, we have focused on making on going upgrades and improvements,” said Kelleher. “Our next introduction will improve tonnage dramatically — in excess of 3,000-tons per hour,” he explained. “In the future, we plan to make even more equipment for members of the coal and aggregate industries with an emphasis on more mobile units.” To comment on this story or for additional details click on the related button above. |