Engineering & Mining Journal

JUN 2018

Engineering and Mining Journal - Whether the market is copper, gold, nickel, iron ore, lead/zinc, PGM, diamonds or other commodities, E&MJ takes the lead in projecting trends, following development and reporting on the most efficient operating pr

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80 E&MJ • JUNE 2018 www.e-mj.com COMPANY PROFILE-PAID ADVERTISEMENT The Hilliard Corporation was founded in 1905 by designing and manufacturing a friction clutch which revolutionized the machine tool industry. Since then, The Hilliard Corporation has evolved from a single product business into an industry leader in both Motion Control Products and Filtration Systems, serving a wide array of industries. Our products are designed, manufactured, and sold according to our customer's applications. As a result, we have a large portfolio of custom engineered products that can be modified to meet new applications. With over 500,000 square feet of manu- facturing space and hundreds of highly skilled employees, Hilliard has continued the tradition of engineering and improving products to serve our customers around the globe. One such product improvement/development was the Hilliard Braking System line of brakes. The concept of caliper disc brakes has been around since the late 1800's The first automobile caliper braking system was patented in 1902, however Hilliard specializes in larger industrial braking technology. For more than 30 years, the company has been supplying braking systems for draglines, electric shovels, conveyors, mine hoists, mills, workboats and elevators. During that time, we have been able to analyze potential product improvements and modifications that would increase longevity and decrease maintenance costs for the end users. One such prod- uct enhancement centers around the mounting configurations on our "arm style" line of brakes. The footprint of these brakes are the same as current competitive lines, however Hilliard's design replaces a designated thruster/actuator arm and an adjuster arm with one standardized arm. These new systems are interchangeable with existing systems, however the Hilliard system offers continuity of parts for quicker repairs, less downtime for maintenance, and reduced parts inventory for the end user, ultimately leading to increased profitability. The next development for the brake series came in the form of the thrusters or actuators. These are the true unsung heroes of any caliper brake system. Hilliard engineering realized that the thrusters that were available in the market place were designed with only a couple of heavily compressed springs inside the housing. Ultimately this design made them practically impossible to repair onsite, so the customer was left with very few options, such as carrying extra inven- tory or taking it out of service completely while the thruster/actuator was repaired. Hilliard's brake engineers designed our thrusters to be fully repairable without specialized tooling by the customer. They have placed a series of nested springs inside the thruster housing which will also allow our customers to change torque settings on spring applied applications easily by adding or removing springs. By designing our thrusters this way, it makes replacing commons seals and O-rings a rather simple task, as opposed replacing the thruster or taking it out of services for hours or days. Continuing the development of our brake line, we turned our attention to the modular series. Modular brakes offer a split caliper design to achieve greater braking torques which is commonly needed within the industry. Due to the experience we have in braking systems across many different industries we realized that failures can occur, and most brake applications operate in harsh environments with extremely high loads. Most mines push their braking systems to max- imum limits and eventually seals begin to leak and brakes can fail. In order to prevent a shutdown of operations from a seal failure, the design team created our modular series with a unique spring applied actuating capsule feature for our M900 series. These capsules allow our customers to keep the brake in service because the brake can operate utilizing only 1 off the two actuating capsules while the nec- essary repairs are being made. These modifications were designed to improve maintenance and eliminate catastrophic failures. As bulk material handling machinery designs become more powerful and increasingly efficient, braking system designs must also progress to satisfy the demand to con- trol speed and stop machines in routine and, most important- ly, during emergency stopping events. At The Hilliard Corporation, we pride ourselves on working for our cus- tomers' needs across of our product lines including our plate brakes, rail brakes, and full line of back- stop clutches. Hilliard Braking Systems are made in America and Built for the World. The Hilliard Corporation

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