Aggregates Manager Digital Magazine
Issue link: https://read.dmtmag.com/i/85660
APPLICATIONS Schotterwerk Moersdorf began to expand its Luxembourg operations in 2008. "This is the perfect stone for our customers," Moersdorf's Managing Director Uwe Bälder says. "It's a cubic stone. This is what we want." While independent laboratory tests had demonstrated that the jaw crusher's unique Quattro Movement would create high-quality, cubical products, Moersdorf's operation offered the opportunity to field prove those results. The unique Quattro Movement is made possible by an up-thrust toggle plate position. This causes a figure-8 motion in the moving jaw, which increases the feeding capacity and produces a post-crush at the crusher outlet. The company's road construction clients, in particular, prefer the cube-shaped fragments. "Cubic stone compacts best," Bälder says. The decision to purchase the PC6 was based on several factors that made it a complete package for Moersdorf's operations, he adds. Cubic stone is in great demand among the operation's customer base, says Uwe Bälder, Moersdorf's managing director. The entire Moersdorf operation was modernized in 2002, and, by 2008, it began expanding the quarry to meet customer needs. The quarry expansion wasn't just about producing more stone. Customers also rely on Moersdorf's high quality and on-time delivery. The company is able to exceed customer ex- pectations through careful quality control. For example, it has its own quality-control monitoring facility, which ensures the product surpasses government regulations and industry stan- dards for building materials. Moersdorf also makes sure it uses the most dependable equipment for the job, including an Atlas Copco Powercrusher PC6. The mobile crushing plant is used to produce six different fraction qualities from the rock. But it is also used for recy- cling of concrete and asphalt, resulting in a final product that is perfect for backfill in construction projects. "We bought it because of how its grizzly screen separates the small fraction from the bigger stones so well," Bälder says. The dou- ble-deck independent grizzly section operates separately from the hopper and efficiently screens out the fine material prior to it enter- ing the crushing chamber. And by using the screen box, the crusher gives operations the ability to produce two sellable products. "Then there's the crusher, the 'Quattro Movement,' which gives good shape to the stones," Bälder says, adding that ease of mainte- nance also played a significant role in the unit's selection. "All three sides are totally 100-percent accessible. And that's a nice thing for maintenance, for service. The competitors do not have this easy access." The crusher is remote controlled by the operator in the excava- tor. Moersdorf's operators, Bälder says, can safely and easily ad- just the position or move the machine to another task. Dependability is key in the competitive rock crushing and con- crete business, Bälder says: "It's reliable. We cannot afford any breakdowns because our customers want to have the product in the time, in the quantity, and quality we have promised them." There have not been any major service or repair issues, but Bälder says he is confident of Atlas Copco's ability to provide ser- vice and 24-hour turnaround on spare parts. For Moersdorf, a company that specializes in shaping rocks for tight compaction, the crusher itself has been a perfect fit. AM Article courtesy of Atlas Copco. AGGREGATES MANAGER DIGITAL EXCLUSIVE September 2012 47B