Metal Detectors

Protect Your Products and Equipment from Ferrous and Non-Ferrous Metal Contamination with Versatile, Sensitive Aperture-Type Metal Detectors from Stearns.

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Protection -- Product Purity -- Performance -- Professionalism. Stearns' engineers design your metal detector system to suit your specific application. These systems are complete with metal detector and offer a variety of "material reject" devices and special options.

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Waterproof sanitary inspection heads can be mounted in any position, even at an angle on a steel frame or other support, without loss of sensitivity. Unique spacer blocks separating upper and lower plates permit you to change aperture opening size to accommodate various product sizes or changes in application. Over 350 size variations meet virtually any inspection need. Heads are solid 1-1/2" thick, corrosion-resistant aluminum plate construction. Larger units are 2" and 2-1/2" thick aluminum plate. All inspection heads are of waterproof construction for sanitary cleaning. Temperature and humidity have little or no effect on efficiency.

Our solid state design guarantees reliable performance and high sensitivity. How does it all work? The presence of a metal particle in material conveyed through the inspection aperture causes distortion of the electromagnetic field induced by the lower transmitting head to the upper receiving head. This signal change is amplified in the control cabinet to activate any function: (1) an audible and/or visible warning device, (2) automatic rejection equipment, (3) a marking device, or (4) shut- down of equipment operation.

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Everything for calibrating or monitoring the detector is built into the NEMA 4 control cabinet. Once calibrated, with its digital readout meters, the detector needs no further adjustment. Non-technical personnel can readily verify proper unit operation. These stainless steel cabinets utilize plug-in printed circuit boards for maximum stability and are replaceable in seconds. Self-compensating circuitry automatically adjusts for normal temperature fluctuations.

Electrical Specifications

Input Requirements:

110 or 220 volts AC (specify voltage desired), 50/60 Hertz, Single Phase, Approx. 35 watts.

Indicator Lamps:

Green: Indicates "ready" condition of detector in normal operation.

Red: Indicates detection of metal.

Protective Provisions:

Amber lamp indicates when a proper polarity input voltage is being applied to the equipment and that the unit is properly grounded.

Input voltage is fused for overload protection.

Control Relay:

The detectors have a built-in control relay -- a SPDT design with 1 set of normally open contacts and 1 set of normally closed contacts. The contacts are rated at 10 amps and are for pilot duty only. Power must be applied to these contacts through the provisions of a built-in terminal block in the unit for operating reject devices, external alarms, or equipment shut-down upon detection of metal.

Typical Applications

Metal Detection for Contaminates in Food, Pharmaceuticals, Textiles, Coal and Quarry, Chemicals, Rubber, Tobacco, and Wood and Paper

Features

Waterproof, sanitary inspection heads
Solid state design guarantees reliable performance and high sensitivity
Mount in any position
Change aperture size anytime
Special options:
- Flop gate
- Air blast
- Sweep arm
- Dye marker
- NEMA 4 Alarm bell
- Sequence timer for reject delay
- NEMA 9 Construction
- Belt splice sensor
- Diverter valve
- Belt stop

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Sentinel II Chute System Metal Separator

Metal Detectors for All Industries & Applications. Guard Your Processing Line Against Tramp Metal Contamination.

Manufacturers that work with pellet, flake or granular materials find that Stearns' Sentinel II Metal Detector and Metal Separator System provides a highly effective solution to their contaminate detection challenges.

Stearns' Sentinel II Metal Separator reduces costly machine maintenance and production downtime. Sentinel II metal separators detect both ferrous and non-ferrous metals, and provide rapid discharge of any contaminated product. Harmful tramp metal is rapidly rejected before it can cause damage to equipment or product.

This compact, self-contained unit monitors your free-flowing material and rejects the contaminated product when detected through a discharge chute. A minimum of controls indicate proper operation and detection of unwanted material. The reliable solid-state components which comprise the heart of the detector ensure low maintenance over a long productive service life.

Typical Applications

Metal Detection for Contaminates in Pellet, Powder, Flake and Granular Materials

Features

Adaptable to processing lines, pre-hopper feeding and portable use
Both detection and rapid discharge of metal contaminate
Capacities range from 1,200 to 35,000 lbs. per hour
High degree of adjustable sensitivity to unwanted tramp metal (as small as 0.020")
Compact, self-contained unit, easily connected to processing systems
Reliable solid-state components for long, trouble-free service life
Easy installation; user-friendly operation
Optional spun aluminum feed hopper (12" I.D.)

Model No.	Throughput	Sensitivity	Throat Opening	Overall Dimensions
MS-2	1,200 Lbs./Hr.	0.020"	2"	16-3/4" x 14-3/4" x 6-5/8"
MS-3	2,500 Lbs./Hr.	0.035"	3"	16-3/4" x 14-3/4" x 6-5/8"
MS-X	6,000 - 35,000 Lbs./Hr.	0.060" - 0.125"	4" - 10"	Consult Factory

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To get a customized solution for your specific application, contact the factory or talk with the Stearns rep / dealer nearest you.

Ohio Magnetics, Inc., 5400 Dunham Road, Maple Heights, OH, 44137 - 3687 U.S.A.

phone: 216 / 662 - 8484 or 800 / 486 - 6446, fax: 216 / 662 - 2911 or 216 / 662 - 9526, email: sales@ohiomagnetics.com

standard business hours: 8 AM to 5 PM EST, Monday through Friday