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Introduction

This manual details the proper steps for installing, operating and maintaining  
the Eriez Rota-Grate

®

 and Automated Rota-Grate Magnetic Separator.

Careful attention to these requirements will assure the most efficient  
and dependable performance of this equipment.

If there are any questions or comments about the manual, please  
call Eriez at 814-835-6000 for Rota-Grate assistance.

 

CAUTION ‑ STRONG MAGNET

This equipment includes one or more extremely powerful magnetic circuits. 
The magnetic field may be much stronger than the Earth’s background field 
at a distance several times the largest dimension of the equipment.

• If you use a heart pacemaker or similar device you must never 

approach the equipment because your device may malfunction in  
the magnetic field, with consequences up to and including death.

• To avoid serious pinch‑type injuries caused by objects attracted to the 

magnet, keep all steel and iron objects well away from the equipment. 

Do not allow hands, fingers, and other body parts to be caught between 

the equipment and nearby steel or iron objects.

• Keep credit cards, computer disks, and other magnetic storage 

devices away from the equipment because magnetically stored 
information may be corrupted by the magnetic field.

• Keep electronic devices, such as computers or monitors, away from

 

the equipment because exposure to the magnetic field may result in  
malfunction or permanent damage to such devices.

Contact Eriez if you have a question regarding these precautions.

 CAUTION
Safety labels must be affixed to this product. Should 
the safety label(s) be damaged, dislodged or removed, 
contact Eriez for replacement.

©

 2018 ERIEZ MAGNETICS       ALL RIGHTS RESERVED

Summary of Contents for ROTA-GRATE

Page 1: ...agnetic Separators Installation Operation and Maintenance Instructions ERIEZ WORLD HEADQUARTERS 2200 ASBURY ROAD ERIE PA 16506 1402 U S A WORLD AUTHORITY IN SEPARATION TECHNOLOGIES SM 221 RotA grate automated rota grate magnetic separators ...

Page 2: ...ay malfunction in the magnetic field with consequences up to and including death To avoid serious pinch type injuries caused by objects attracted to the magnet keep all steel and iron objects well away from the equipment Do not allow hands fingers and other body parts to be caught between the equipment and nearby steel or iron objects Keep credit cards computer disks and other magnetic storage dev...

Page 3: ...A grate automated rota grate magnetic separators GENERAL DESCRIPTION 4 INSTALLATION 4 grate position 5 discharge chute 5 pneumatic hook up 5 wiring 5 motor wiring 5 OPERATION 6 cleaning MAINTENANCE 6 REPAIR ALTERATION 7 FACTORS THAT AFFECT MAGNET PERFORMANCE 7 replacement parts 8 ...

Page 4: ...ed to the retracted magnets to assure complete removal of the ferrous material The magnet tubes then return to the product area and product flow can resume Automated Rota Grates include a control so the cleaning cycle can be adjusted The entire cleaning operation takes approximately ten seconds Installation Rota Grate Magnetic Separator These units may be installed at the discharge of either open ...

Page 5: ...e should be located upstream from the Rota Grate to prevent potentially destructive material backup Discharge Chute Space must be provided so that iron discharge can fall clear of the discharge chute and not back up into the unit Continuation of the 45 degree discharge chute to a collection point is the most common method of eliminating this waste Pneumatic Hook Up An 80 psi 5 3 bar air supply is ...

Page 6: ...Examine each magnet tube for wear during your cleaning operation 5 Regulator pressure has been preset at the factory However there may be conditions during material separation sticky or wet material heavy tramp iron load that will prevent the magnetic tubes from moving out of product flow for automatic cleaning If the Automated Grate experiences slow operation adjust the regulator to increase the ...

Page 7: ...n of the trip lever or adjust the roller arm length or both Minor contact between the support channel and mechanical safety stop is normal 4 Unit is automated not self maintaining Clean inside the pneumatic drive housing on a regular schedule depending upon the environment and the material processed It s important that no product be allowed to build up caused by dusting or material passing through...

Page 8: ...018 PRINTED IN USA Note Some safety warning labels or guarding may have been removed before photographing this equipment Eriez and Eriez Magnetics are registered trademarks of Eriez Manufacturing Co Erie PA Replacement Parts PNEUMATIC DRIVE HOUSING PRODUCT AREA SUPPORT CHANNEL 9 8 2 1 10 3 5 6 ITEM DESCRIPTION QUANTITY 1 Tubescraper Disc 1 2 Bearing Strips UHMW 2 3 Clutch Plate 1 4 Air Cylinder 2 ...

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