EQUIPMENT SPOTLIGHT | JUNE 2023 Magnets

by MARY M. THORNTON

Allied Market Research projects the global construction and demolition (C&D) waste recycling market to reach just over $149 million by 2027. In the C&D process, a variety of equipment is used in the recovery of recyclable materials such as steel, wood, drywall, plaster, brick and clay tile, asphalt shingles, concrete, and asphalt concrete. Magnets are commonly used to lift out large and small metals components and magnets are available in a variety of configurations due to the varying stages of recovery that may be involved.

Dings Co. Magnetic Group

Dave Smith, product manager at Dings Company Magnetic Group, reports that the firm has engineered and manufactured magnetic separation equipment since 1899. “C&D recyclers rely on Dings for durable, reliable electro and permanent overhead magnets and magnetic pulleys. Our self-cleaning Dura-Belt product, equipped with stainless steel plates and cleats, meets the specific needs of C&D recyclers processing crushed concrete with rebar. This unique self-cleaning belt design prevents damage to the belt caused by rebar being pulled to the magnet and damaging the rubber self-cleaning belt in the process. The Dura-Belt feature eliminates the cost and down time associated with replacing standard rubber self-cleaning belts that have been pierced by rebar,” Smith explained.He also commented that increased national spending for infrastructure is driving demand for aggregate and increasing the volume of concrete being recycled. “These aggregate producers and concrete recyclers need high quality, durable magnetic separation equipment to ensure consistent material production and to prevent downtime due to equipment damaged by metal in the production stream. During the past two and a half years we’ve seen fewer supply issues and have also managed to return to our desired manufacturing rate too, so this has improved lead times in product delivery. The trend in national infrastructure spending will likely sustain strong market demand and pressure to increase the production of material. High quality magnetic separators shipped from U.S. manufacturing facilities like ours will certainly play a large role in supplying the quality products required to meet market demand.”

Sennebogen

Sennebogen has been manufacturing purpose-built material handling equipment for over 70 years and offers a variety of lifting magnets designed to maximize performance and production for their customers. These magnets range in size from 30” (762 mm) to 84” (2,134 mm). Also, in order to support specific applications, Sennebogen has developed custom lifting magnets. “Our magnets are optimized for true duty cycle operation to meet the demanding workload our customers experience daily. As a manufacturer, it’s crucial we listen to our customers and design products that enhance their operations,” said Constantino Lannes, president & chief executive officer. He added, “To address some of the challenges for lifting magnets, such as deterioration, damage to magnet surface, and decreased lifting capacity over time, Sennebogen magnets incorporate a wear-resistant layer of hard facing on pole shoe surfaces and a standard high alloy steel chain. Additional standard features include Class “H” insulations, an easy access terminal box, and water-resistant construction. Our products are engineered to achieve optimal lift-to-weight ratios and duty cycle. All sizes use deep field aluminum wound coils and deliver continuous cycle throughput, providing users with extended magnet service life without sacrificing strength and durability.” Sennebogen also offers optional features such as special voltages and other customer-specified requirements.
Lannes said the Sennebogen series of lifting magnets complete the line of 4-tine and 5-tine scrap grapples and mag-grapples. These industry leading grapples are widely used in scrap and recycling operations globally. Sennebogen attachments are designed to maximize the lifting capacity of the material handling equipment as well as service life. They are built to meet the processing capacity, material densities, and duty-cycle profile of each customer’s specific operation.

SIEB Sales & Engineering, Inc.

SIEB Sales & Engineering, Inc. specializes in manufacturing magnet systems for the scrap, steel and railroad industries. “Our circular, 230 VDC electro-lifting magnets range in size from 30” in diameter, up to 78” in diameter. All are heavy duty fabricated housings designed for wear and long life. Features include 75 percent duty cycle coils with high strength tested alloy steel chains coupled to the magnet with double ears and chain pins for greater safety. We have been in the magnetic material handling business since 1967,” said Ronald Sieb, president.

Sieb added, “Bear in mind, there is much more to hanging a magnet off the end of a crane than some may realize. A lifting magnet is typically used in very rigorous conditions and demands steady, reliable voltage and the controls to match, depending on the application variables involved. We have industry leading experience in working with all types of magnetic material handling systems. Tell us about your specific requirements. Then we will provide suggestions that ensure your machine is equipped with the most productive and cost-effective system, specifically designed for your needs. Once you have what you need in place, our service expertise will be available to you as well. We offer unmatched technical support and stock parts for all manufacturers and types of magnet system equipment. Superior customer service is an integral part of who we are.”

Published in the June 2023 Edition of American Recycler News