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Lifting Magnets

 

In 1999, we started our Lifting Magnet Division. Primarily serving the steel industry in our geographic region, this segment of our company has grown into an international venture, making CMT the best and most competitive choice in the market. Over the years, we have built a reputation by demonstrating our expertise on countless lifting magnets being rebuilt, remanufactured or completely engineered new to meet today’s industrial demands.

CMT’s lifting magnets are often used for material handling by steel companies. This includes moving ingots, reclaiming scrap, loading furnaces, and so on with the help of crane brakes, limit stops, crane controls, and take-up reels. We are experienced in the design, rewind, manufacture and service of any material handling magnet or separator roll. Overseen in our 17,000 square foot state-of-the-art facility dedicated solely to lifting magnets, our proprietary processes and custom designed equipment ensure consistent quality and provide you with the most reliable repair or newly manufactured industrial magnets available.

As one of North American’s most technically advanced magnet production facilities, we offer:

  • Conductor straightening and reprocessing
  • Electrified core magnet rewinding
  • Rotating and linear automated welding
  • CNC machining and flame cutting
  • Automated magnet operational load testing of each magnet serviced
  • Magnet repair and new manufacture
  • Magnetic chucks, rolls and stationary magnet rebuilding

Magnet Repair & Remanufacture

At CMT, we offer exceptional magnet repair and remanufacture services for used lifting magnets. Prior to repair, all magnets are thoroughly inspected and evaluated. If necessary, a 112-inch vertical boring mill is used for precise machine opening. This is the preferred method of opening to protect case integrity and produce a consistent weld zone for easy reassembly. This process also enhances efficient magnetic flux transfer once the magnet is reassembled.

CMT has invested heavily in shop equipment to ensure we can meet all of your lifting magnet manufacturing and rebuilding needs. Aside from the 112-inch vertical boring mill, we have a variety of other high-tech equipment pieces in-house to help us do our job. For quick turn-around, we use a 200-ton puller press to make disassembly and reassembly of large lifting magnet components easy and efficient.

When it comes to fast conductor processing, we utilize three fully adjustable machines. With these, we are easily able to process copper and aluminum conductors up to six inches wide and from 0.005 inches to 0.125 inches in thickness. An auxiliary reel is available for use on electrified core style magnets.

For electrified core magnet rewinding, our versatile equipment can easily adapt to changing technologies. Magnets are rewound on three constant torque, constant tension machines using Class H fiberglass and Nomex materials. All of our winding equipment has been custom designed, as well as our proprietary conductor straightener and camber control device that salvages crushed conductor, to provide our customers unparalleled products and services in the industry.

Lifting Magnet Design & Manufacturing

Lift Magnet Manufacturing from CMTIf you’re looking to design and manufacture an industrial lifting magnet for your facility, CMT is also a top choice in the industry. From large rectangular lifting magnets to scrap magnets and more, we have the versatile equipment to complete the job accurately and efficiently.

All of our magnets are thoroughly baked, purged and epoxy potted in a 99.8% moisture-free environment. We guarantee and monitor this through our specialized vacuum pressure impregnation process. Through the use of heat, vacuum, and pressure, all magnets are hermetically sealed with a proprietary Class H epoxy resin. This seals the assembly and provides resilient support and a void-free heat conduction bridge to the case.

As with our magnet repairs, we conduct a full operational test on every magnet we manufacture. Tests performed include: step-surge, impedance, resistance, thermal turn differential and high potential ground. Our attractive force analyzer is capable of measuring the theoretical lift of a magnet in cold or hot operating ranges up to 900,000 pounds. Lifting magnets are also automatically cycle tested at their rated duty cycles to assure maximum performance in the field. Results from these are provided in a computerized report, which is a valuable tool in assessing future performance.

For a detailed peak into our Lifting Magnet Division and snapshots of the additional equipment we utilize, check out our Facebook page.

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