Magnetic Grates

Magnetic Grate Separators, also known as grate magnets or hopper magnets, deliver ferrous tramp metal separation in bins, chutes, drawers, hoppers and circular enclosures. We offer both ceramic and rare earth grate magnets.

IMI's Round Style magnetic grates are constructed with one inch diameter magnetic tubes placed on two inch (2") centers in heavy duty 1/8" thick x 2" wide stainless steel framing. The round style magnetic grates are available in 16 standard diameters ranging from 4" to 36". Special sizes are also available. Each round grate magnet can be equipped with diverters. See tech sheet for styles.

IMI's Square Style magnetic grates are constructed with 1" diameter magnetic tubes placed on 2" centers in heavy duty 1/8" thick x 2" wide stainless steel framing. Standard models are available to order online. Request tech sheet or contact IMI for additional ordering options.

Magnetic Tube Configuration Options

Magnetic Grates come standard with our 52 Grade Rare Earth Opti-B™ balanced circuit.

• Opti-B™ Balanced Rare Earth circuit ideal for abrasive applications, featuring a high-performance blend of 9,500 gauss and 16.7 pounds of pull strength on a 1/2” ball
• Opti-G™ Rare Earth Circuit which optimizes magnetic field at 12,000 gauss
• Opti-H™ HACCP International Food Safety Programme Certification-approved Rare Earth circuit averaging over 11,000 gauss and 106 oz. of pull strength on a 1/4” ball
• Opti-L™ Large Tube (3”) Rare Earth Circuit for products prone to have flowability, bridging tendencies; Over 12,000 Gauss
• Opti-M™ Mid Tube (2”) Rare Earth Circuit for products prone to have flowability, bridging tendencies; Over 13,565 Gauss
• Opti-P™ Rare Earth Circuit which boasts 119 oz. of pull strength on a 1/4" ball
• Opti-T™ High Temperature Rare Earth Circuit with high durability and heat tolerance up to 356°F
• Opti-V™ Durable Tube with a Ceramic Circuit for larger tramp metal removal applications

Magnetic Grate Tubes Designs, Applications and Specifications
Configuration	Application	Magnet	1/4" Ball Pull Values	1/2" Ball Pull Values	Gauss	Durability
Opti-B	Balanced	UHI-52™ Rare Earth	95.8 oz. (5.99 lbs.)	267.2 oz. (16.7 lbs.)	9475
Opti-G	High Gauss	UHI-55™ Rare Earth	108.3 oz. (6.77 lbs.)	265.6 oz. (16.6 lbs.)	12000
Opti-H	HACCP	UHI-55™ Rare Earth	106 oz. (6.63 lbs.)	260.8 oz. (16.3 lbs.)	11175
Opti-L	Large Tube	UHI-52™ Rare Earth	106.8 oz. (6.68 lbs.)	448 oz. (28 lbs.)	12385
Opti-M	Mid Tube	UHI-52™ Rare Earth	128 oz. (8.05 lbs.)	448 oz. (28.7 lbs.)	13,565
Opti-P	High Pull	UHI-55™ Rare Earth	119.1 oz. (7.44 lbs.)	316.8 oz. (19.8 lbs.)	10539
Opti-T	High Temperature	Hi-Temp Rare Earth	60.5 oz (3.78 lbs)	188.3 oz (11.78 lbs)	7240
Opti-V	Value	Ceramic	0.5 oz. (0.03 lbs.)	24 oz. (1.5 lbs.)	2320
NOTE: NOTE: All Opti™ Series options are available across Industrial Magnetics' entire lineup of Tramp Metal separation equipment. *The variability of test results is +/- 10%

Third Party Certifications

HACCP International

Our Sanitary Grade Magnetic Grates that utilize the Opti-H™ magnetic tubes are certified by HAACP International and fully conform to HACCP International's Food Safety Standard (0909MAGSEP 1-2010) for direct contact with food product.

USDA AMS

Our Sanitary Grade Magnetic Grates are USDA AMS accepted Dairy, Meat and Poultry magnetic separator processing equipment.