LM-4E Degausser

The LM-4E degausser combines a set of two unique and very powerful magnet designs with the speed of an industrial conveyor belt. By generating fields in multiple directions, it is possibly your best defense against current Longitudinal Magnetic Recorded (LMR) and future Perpendicular Magnetic Recorded (PMR) hard disk media. Simply turn it on and place the media (magnetic tapes or hard disk drives) on the moving belt. The media is pulled inside the degausser where it passes a shielded permanent magnet that completely sanitizes the media and drops the erased media in a bin for recycling or disposal.


  • Industrial conveyor belt system provides rapid, continuous erasure (up to 1,800 tapes/hard drives per hour).
  • Oversized chamber erases larger HDD form factors, like 3.5” drives measuring up to 1.63” in height.
  • Listed in the "NSA Evaluated Products List – Degausser."

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Degausser Specifications

  LM-4E LM-1 HPM-4E
Made in the USA by Data Security, Inc. Data Security, Inc. Data Security, Inc.
Magnetic Field Technology Permanent Magnet Permanent Magnet Permanent Magnet
Operation Automatic (industrial-grade conveyor belt) Automatic (industrial-grade conveyor belt) Manual (effortless handle)
Disk Coercivity in NSA EPL-D 5000 Oe Longitudinal and Perpendicular Recorded 5000 Oe Longitudinal and Perpendicular Recorded 5000 Oe Longitudinal and Perpendicular Recorded
Tape Coercivity in NSA EPL-D 2800 Oe 2800 Oe 2800 Oe
Max Media Size 1.6” (41 mm) high by 4.3” (109 mm) wide by 6.0”(150 mm) long. 4.3" (109 mm) by 6" (153 mm) by 1" (26 mm) 4.6” (117 mm) by 7” (178 mm) by 1.65” (41 mm)
Erasure Time 2 seconds (adjustable) Seconds per pass (operator dependent) Seconds per pass (operator dependent)
Throughput 1,800 HDDs/hr, 1,800 tapes/hr 1,800 HDDs/hr, 1,800 tapes/hr 900 HDDs/hr, 900 tapes/hr
Mobility Platform included, wheels optional Optional wheeled cart available Cart included
Weight 1,000 lbs (450 kg) 270.5 lbs (123 kg) 450 lbs (205 kg)
Dimensions 67.3” (1710 mm) W by 28” (710 mm) D by 46.5” (1182 mm) H with a loading height of 37.5” (953 mm) 15.9” (404 mm) W by 38.8” (986 mm) D by 16.5” (419 mm) H 49.5” (1258 mm) W by 20” (508 mm) D {25.8” (656 mm) with handle} by 16.7” (424 mm) H {47.4” (1204 mm) w/cart}
Power 120V/8A/60Hz, 208V/4A/60Hz, or 220-230V/4A/50Hz 120V/4A/60Hz or 230V/2A/50Hz No electrical power required, energy provided by human operator

LM-4E Performance

Independent scientific testing confirms this degausser erases Longitudinal Magnetic Recorded (LMR) and Perpendicular Magnetic Recorded (PMR) hard disk media with a coercivity of 5000 Oersteds and tape media with a coercivity of 2800 Oersteds.

*Erasure performance testing on hard disks with coercivities above 5000 Oe and on magnetic tapes 2800 Oe and above in progress.

The LM-4E conveyor system allows operators to degauss one piece of media every two seconds, making it one of the fastest degaussers available. Designed for organizations with large quantities of media and limited manpower, the fast cycle time of the LM-4E adds ease and efficiency to your media sanitization needs.

The patented, dual permanent magnet arrangement of the LM-4E degausser creates multiple magnetic fields working in vertical and horizontal patterns, which results in two extremely powerful magnetic fields. Independent scientific testing confirms the LM-4E erases all current magnetic media, as well as having the potential to erase higher coercivities as they become available, making the LM-4E a smart, long-term choice.

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