Beltless magnetic conveyor handles 10 million lbs. of scrap

Conveyor handles high volume, steep incline

By Magnetic Products Inc.

February 1, 2011

A Midwestern stamper installed a new press with an unusually high drop from the passline of the press to the scrap removal conveyor. The stamper determined that a magnetic conveyor could handle the challenges presented.

Situation

Several years ago a Midwestern manufacturer decided to install a new press with an unusually high drop from the passline of the press to the scrap removal conveyor. This presented several challenges:

1. The conveyor had to keep up with an extremely high volume.
2. Each piece of scrap was more than 1 ft. long.
3. The angle of incline had to be extremely steep to accommodate the plant’s deep pit.

The company debated the merits of a steel hinge conveyor versus a magnetic conveyor. In this case, it was determined that the magnetic conveyor was the right choice for cost and performance.

Resolution

The manufacturer contacted Magnetic Products Inc., a provider of magnetic and nonmagnetic material handling systems. After extensive testing in its in-house research facility, MPI recommended its series 1200 beltless magnetic conveyor.

The conveyor—at the time the largest beltless magnetic conveyor ever built by MPI—operates on a 24/7 schedule. Permanent magnets are conveyed below a nonmagnetic stainless steel slider bed to move and convey ferrous metal objects. The conveyor has processed 6.5 lbs. of scrap per stroke for seven years, equating to more than 10 million lbs. of scrap.

Five years after the initial installation, the same manufacturer required a conveyor that could handle 8 lbs. of scrap per stroke. The company chose another MPI beltless magnetic conveyor, this one measuring 24 in. wide, 35 ft. long, and 20 ft. tall with an 18-ft. infeed. The conveyor features ceramic 8 magnet material; an internal oil reservoir for continuous lubrication; a reinforced impact bed; a self-adjusting chain tensioning system; 7-ga. stainless steel slider beds; and a 7.5-HP, 230-/460-V, three-phase motor with gear reducer and torque limiter.