Oil-Cooled Conveyor Iron Removal

Oil-Cooled Self-Unloading Suspended Electromagnetic Separator

Use this Corvelan separator on dry conveyor lines that regularly carry unwanted iron or steel. These unwanted pieces are often called tramp iron. A moving cleaning belt removes the captured metal automatically.

Request a Configuration ReviewSee Which Option Fits

We do not choose the separator from conveyor width alone. The key distance is from the magnet face to the iron piece that is hardest to reach. We call this the working distance.

Good Fit ForDry belt conveyors with regular iron or steel contamination where frequent manual cleaning would stop production.
Choose Another Separator ForPrimary aluminum or copper removal, liquid or slurry separation, or fine weakly magnetic mineral recovery.
Most Important MeasurementMagnet face to the iron piece that is hardest to reach inside the material.
Cleaning MethodA driven cleaning belt carries captured iron away from the magnetic zone automatically.
Difficult ConditionDeep material plus high belt speed needs a capture test before we confirm the final setup.
Before ProductionConfirm the installation drawing, electrical requirements, selected setup and agreed test method.
Coverlan oil-cooled self-unloading suspended electromagnetic separator with cleaning belt and drive assembly
Corvelan oil-cooled self-unloading suspended electromagnetic separator with cleaning belt, drive-side assembly and suspension frame.

Quick Engineering Answers

What should you choose for common conveyor conditions?

Start with the operating condition, not the product name. These quick rules show which separator type to check first.

Iron appears oftenChoose a self-unloading separator so captured iron can leave the magnetic area without repeated manual cleaning.
Iron is rareA manual-clean suspended magnet may be enough when planned safe stops are acceptable.
Deep material + fast beltUse an electromagnetic separator and run a capture test at the real working distance.
No oil-filled system is allowedChoose an air-cooled electromagnet and check that it can handle the required operating duty.
A permanent magnet reaches the targetUse the permanent magnet instead of adding electrical excitation you do not need.
Aluminum or copper is the main targetUse an eddy-current or other non-ferrous separator instead of this suspended electromagnet.
The process is wet or slurry-basedUse a wet magnetic separator instead of a dry-belt suspended unit.
The area is hazardous or explosiveDo not use a standard separator. Confirm the required certified design before selection.

Quick Fit

Is this separator right for your conveyor?

Choose this separator when your process is dry, conveyor-fed and needs to remove iron or responsive steel. It fits best when the metal appears often enough to make manual cleaning disruptive. Use another option if your process does not match these conditions.

Choose Self-Unloading Electromagnetic

Use self-unloading when iron appears often and production should keep running. We then size the magnetic reach for the real material depth and target position.

Choose Manual Clean Instead

Use a manual-clean suspended magnet when iron appears only occasionally. Choose it only when planned stops are acceptable and the magnet can be cleaned safely.

Choose Another Separator When

Use another separator for aluminum or copper, liquid or slurry processes, or fine weakly magnetic mineral recovery.

Oil cooling and self-unloading solve different problems. Oil cooling manages heat from the electromagnet. The cleaning belt removes captured iron. We choose both from the real operating duty and cleaning need.

Choose the Right Separator

Which separator should you use?

Choose the separator type from the real operating condition first. Then choose the exact machine size. The table shows what to use and what information to send us.

Your SituationUse ThisAvoid ThisWhat to Send Us
Iron appears often and the line should keep runningOil-cooled self-unloading electromagnetManual cleaning as the normal methodBelt speed, material depth, target iron, iron frequency, discharge side and collection area.
Iron appears only occasionally and planned stops are acceptableManual-clean suspended magnetAutomatic cleaning when the process does not need itTarget iron, safe cleaning access and the normal stop schedule.
Material is shallow, belt speed is moderate and iron is easy to catchCompare a suspended permanent magnet firstElectromagnet without a reach or duty reasonWorking distance, target iron and belt speed.
Material layer is deepElectromagnetic separatorChoosing from conveyor width or air gap aloneMaximum normal material depth and the deepest target position.
Belt speed is highElectromagnetic separator + capture testUsing a static pickup test as the only checkBelt speed, working distance and the iron piece that must be removed.
Material is deep and belt speed is highElectromagnetic separator + capture testChoosing the final machine from a catalog table aloneMaximum material depth, belt speed, target iron and target position.
Small important iron can sit at the bottomElectromagnetic separator with enough magnetic reachTesting only the largest and easiest pieceSmallest required iron, bottom position and real working distance.
Iron pieces are large or heavyHeavy-duty electromagnetic separatorChoosing from magnet-face Gauss aloneIron size, shape, mass, position and discharge path.
A lot of iron arrives frequentlySelf-unloading separatorChecking magnetic pickup without checking dischargeIron frequency, iron amount, chute, bin and collection space.
Iron is sharp or highly abrasiveProtected or heavy-duty cleaning beltStandard belt without an impact checkIron photos, shape, mass, impact path and discharge drop.
Electromagnet runs long hours or under demanding dutyOil-cooled electromagnetChoosing cooling from the product name aloneOperating hours, ambient condition, dust, moisture and service access.
The site does not allow an oil-filled cooling systemAir-cooled electromagnetOil-cooled electromagnetOperating hours, ambient condition, airflow and service space.
No electrical supply is available, or the site wants the simplest magnetic sourceSuspended permanent magnet if it reaches the targetElectromagnet unless reach or duty requires itWorking distance, target iron and belt speed.
Aluminum or copper is the main unwanted metalEddy-current or other non-ferrous separatorSuspended electromagnet as the main separatorMetal type, particle size and how it appears in the product.
The process is liquid or slurryWet magnetic separatorDry-belt suspended separatorSlurry details, solids content, particle size and separation goal.
The goal is fine weakly magnetic mineral recoveryHigh-intensity or high-gradient separatorStandard tramp-iron electromagnetMineral sample, particle size and required separation result.
Stainless steel is the targetTest the actual grade and conditionAssuming all stainless responds the same wayA real sample, grade if known, size and process condition.
There is no side space for cross-belt dischargeChange discharge direction, location or separator typeStandard cross-discharge layoutSide-view drawing, available space and the planned collection point.
The existing conveyor has low headroomCheck the general arrangement (GA) drawing firstChoosing the magnet before checking spaceHeadroom, material depth, support steel and maintenance space.
This is a new conveyor lineReserve separator space during conveyor designAdding the separator after the steelwork is fixedConveyor GA, support position, headroom, chute and collection area.
This is an existing-line retrofitCheck the existing conveyor firstCopying a new-line layoutHeadroom, nearby steel, support, power, service access and discharge space.
The area is hazardous or explosiveDedicated certified hazardous-area designStandard separator setupArea classification and the required certification scope.
This is a food or hygienic processDedicated hygienic or food-compatible designStandard mining or aggregate setupContact materials, cleaning method and required certifications.

Example Selection

Example: frequent iron on a continuous limestone conveyor

This configuration example shows how iron frequency, conveyor conditions and cleaning requirements affect equipment selection.

Choose an oil-cooled self-unloading electromagnet. Frequent iron makes repeated manual cleaning a production problem, so automatic discharge becomes part of the machine choice.

MaterialCrushed limestone
Conveyor1,200 mm belt at 2.1 m/s
Material DepthAbout 180 mm during normal operation
IronBolts, plate fragments and crusher wear pieces
FrequencySeveral pieces during each operating hour
Operating Time18 hours per day

Why Self-Unloading?

The line should not stop several times each shift just to clean the magnet.

What We Check

Working distance, iron amount, belt running, discharge direction and the collection area.

What We Need From You

Conveyor data, material depth, iron photos, iron frequency and the proposed installation point.

Material & Metal Fit

What materials and metal pieces can this separator handle?

Use this equipment for iron or steel pieces that respond strongly to a magnet in dry bulk material on a belt conveyor. Choose the separator from the hardest metal piece you still need to remove, not from the material name alone.

Use It For

Typical dry conveyor streams include ore, aggregate, coal, bulk fuel, clinker-related material, recycling feed, wood and biomass. The unwanted metal should be iron or responsive steel.

Do Not Treat All Metals the Same

Use a non-ferrous separator for aluminum or copper. Test stainless steel using the actual grade and condition. Use another separator for slurry or weakly magnetic mineral work.

Smallest Iron That Must Be RemovedThe smallest important piece may control the final choice.
Typical Iron PieceUse the common piece to plan normal discharge and collection.
Largest or Heaviest Iron PieceUse it to check impact, belt protection and the discharge path.
Where the Iron SitsIron at the top, middle and bottom is not equally easy to catch.
The hardest iron piece to catch is not always the largest one. A smaller piece buried at the bottom may be harder because it is farther from the magnet.

Working Principle

How does an oil-cooled self-unloading suspended electromagnet work?

The energized coil creates a magnetic field above the conveyor. Iron or steel is pulled from the material toward the magnet. A driven cleaning belt carries the metal out of the strong magnetic zone, where it drops into the collection area. Oil cooling carries heat away from the electromagnetic assembly.

1

Material Moves Below the Magnet

The conveyor carries the material under the suspended magnet. The material layer on the belt is often called the burden.

2

The Magnet Pulls Out Iron

The magnetic field must be strong enough at the iron position to pull the piece from the moving material.

3

The Cleaning Belt Carries It Away

The cleaning belt moves captured metal away from the product stream.

4

The Metal Drops Into the Collection Area

After the metal leaves the strong magnetic zone, it drops into the chute, bin or other collection area.

Oil cooling manages heat. It does not by itself prove magnetic reach, pull force or capture performance.
Coverlan self-unloading suspended electromagnetic separator showing cleaning-belt path and rollers
Corvelan separator showing the cleaning-belt path, rollers and discharge direction.

What Affects Capture

What makes iron easier or harder to remove?

Start with the real working distance. Then check material depth, belt speed, iron size and position, how much iron appears and nearby steel. Do not choose the separator from belt width or magnet-face Gauss alone.

Measure the Distance to the Hardest Iron Piece

Do not measure only the empty space above the material. Measure from the magnet face to the iron piece that is hardest to reach inside the material.

Use the Deepest Normal Material Layer

Do not use the average material depth if the conveyor regularly runs deeper. Use the deepest normal layer the separator must protect. Engineers often call this burden depth.

A Faster Belt Gives the Magnet Less Time

As belt speed rises, the magnet has less time to pull the iron out. For fast belts, test the required iron at a similar speed and working distance.

Choose for the Hardest Piece to Remove

Define the smallest required piece, typical piece, largest or heaviest piece, and the deepest position that still needs protection.

A Lot of Iron Can Overload the Discharge System

If captured metal builds up faster than the cleaning system removes it, the belt, chute or bin becomes the bottleneck.

Nearby Steel Can Affect the Installation

Show us support steel, chutes, guards and rollers near the magnet. Move or redesign steel that blocks the magnetic zone or service access.

Deep material + high belt speed = run a capture test before we confirm the final model. Test the required iron at the real working distance and a similar belt speed.
Gauss ≠ pull force ≠ capture performance ≠ separation efficiency. Gauss is magnetic flux density at a defined point. A high number on the magnet face does not prove moving capture at the real working distance.

Example Selection

Example: deep material on a fast conveyor

This example shows the selection method. The numbers are not Corvelan model ratings or a published customer result.

Use an electromagnetic separator and run a capture test at the real working distance. Deep material moves the iron farther from the magnet, while a fast belt gives the magnet less time to catch it.

MaterialIron ore
Conveyor1,400 mm belt at 3.0 m/s
Maximum Normal Depth350 mm
Critical Iron0.8 kg steel tool fragment
Hardest PositionNear the bottom of the material layer
First CheckMagnet face to bottom-position target distance

What to Test

Use the required iron piece at the agreed distance and a movement condition close to the real belt speed.

If It Does Not Catch the Iron

Move the magnet closer, reduce material depth, use a stronger setup, change the installation point or change separator type.

What Not to Do

Do not replace the real test with an easy plate placed close to the magnet just to get a pass.

Choose the Magnetic and Cooling Type

When should you choose oil-cooled, air-cooled or permanent?

Choose the magnetic and cooling type from running duty, required reach and site limits. Do not choose from the product name alone.

Choose Oil-Cooled Electromagnetic

Choose oil-cooled when the electromagnet runs for long periods or works under demanding duty. It is also the first option to review for deep material or longer magnetic reach when oil cooling fits the site.

Choose Air-Cooled Electromagnetic

Choose air-cooled when you still need an electromagnet but do not want an oil-filled cooling system. The selected design must still handle the required duty and site conditions.

Choose a Suspended Permanent Magnet

Choose a permanent magnet when it can catch the required iron at the working distance without electrical power. If it can do the job, there is no reason to add an electromagnet only for complexity.

What We Need for an Oil-Cooled Separator

  • Whether the conveyor runs continuously or in batches.
  • Operating hours per day.
  • Ambient temperature and surrounding conditions.
  • Space for checking and servicing cooling parts.
  • Site rules for oil inspection and leak response.

Oil Cooling Does Not Automatically Mean Stronger Magnetism

Oil cooling manages heat. It does not tell you by itself how much iron the separator can catch. Magnetic performance still depends on the coil, magnetic circuit, working distance and the iron you need to remove.

Choose the Cleaning Method

When should you choose self-unloading instead of manual cleaning?

Choose self-unloading when iron appears often enough to make manual cleaning interrupt production. It also makes sense when access is difficult or too much metal would build up on the magnet. Choose manual cleaning only when iron is truly occasional.

  • Frequent iron: use self-unloading and make sure the discharge path can handle the real amount of metal.
  • Occasional iron: manual cleaning can be simpler when safe access and isolation are available.
  • Sharp or heavy iron: check belt protection, impact handling and the discharge path before using a standard belt.
  • No side discharge space: change the separator direction, installation point or separator type before final selection.
  • Collection bin too small: increase capacity or change the handling method. Captured iron must not fall back into the product stream.
Check both magnetic capture and mechanical strength. Catching the iron is only the first part. The belt, chute and bin also have to survive and remove it.
Coverlan self-unloading electromagnetic separator cleaning belt and roller system
Corvelan self-unloading belt and roller arrangement for continuous iron discharge.

How Corvelan Chooses the Final Setup

How does Corvelan choose the final setup?

We start with the problem you need to prevent. Then we check the hardest iron piece, working distance, iron amount, magnetic and cooling type, discharge system, installation space, electrical requirements and test method. Conveyor width alone is never enough.

1. Define the Problem to PreventFor example: crusher damage, product contamination or damage to downstream equipment.
2. Define Three Iron PiecesDefine the smallest required piece, typical piece and largest piece. Also tell us where each one can sit in the material.
3. Confirm the Conveyor and SpaceConfirm belt width and speed, normal and deepest material level, magnet position, headroom and nearby steel.
4. Choose the Magnet and Cooling MethodChoose oil-cooled, air-cooled or permanent based on duty and the required magnetic reach.
5. Choose Cleaning and DischargeChoose self-unloading or manual cleaning, discharge side, chute or bin, belt protection and service access.
6. Agree How the Machine Will Be CheckedAgree the approved drawing, dimensions, running checks, any magnetic measurement and any capture test needed for difficult conditions.

The Outside Layout Can Change With the Final Setup

Corvelan separators can use different frames, rollers and drive layouts to match the selected size and installation. The project drawing confirms the final belt path, frame, drive side, maintenance space and suspension points.

We confirm magnetic performance, power, oil details and final dimensions in the project technical documents. Do not read these values from product photos.

Coverlan suspended electromagnetic separator structure with belt rollers and support frame
Corvelan product structure showing the cleaning belt, rollers, support frame and suspended magnetic body.

What We Confirm Before Production

What must be confirmed before production starts?

Do not start production until the main conveyor, magnetic, cooling, cleaning, installation and electrical details are confirmed. These items control whether the separator fits and how we check it.

Item to ConfirmWhat We ConfirmDo Not Start Production If
Conveyor detailsBelt width, belt speed, material profile, normal and maximum material depth, travel direction and separator position.The conveyor layout or material depth is still only an estimate.
Iron pieces to removeSmallest required, typical and largest or heaviest piece, plus where each piece can sit in the material.Only the easiest visible steel piece has been checked.
Working distanceMagnet face to the hardest iron piece at the deepest normal material condition.Only the empty air gap to the material surface has been measured.
Magnetic requirementAgreed magnetic measurement or capture requirement at a defined condition.The requirement is only an undefined “high Gauss” statement.
Oil-cooling setupCooling type, included parts, running duty and service access.Oil type, oil volume or thermal limits are being guessed from photos.
Self-unloading systemBelt path, drive, discharge direction, protection, guards and collection area.Captured metal has no safe place to discharge.
Support and clearanceSuspension points, headroom, nearby steel, maintenance space and lifting access.The machine cannot be serviced safely.
Electrical and controlsSite power supply, electromagnet controls, cleaning-belt drive, interlocks and plant connections.Voltage or control responsibility is still unclear.
Test methodDrawing check, dimension check, function check, magnetic measurement and/or capture test.The pass/fail method has not been agreed.

When You Should Choose Another Separator

When is this separator the wrong choice?

Do not use this separator for a process that needs a different separation method, special certification or a different installation layout. Choose another option when any condition below applies.

Use This Separator When

  • Dry bulk material moves on a belt conveyor.
  • The main unwanted metal is responsive iron or steel.
  • Iron appears repeatedly and automatic discharge is required.
  • An energized suspended magnetic field is needed for the working distance.
  • The site has enough support, headroom, discharge space and maintenance access.

Choose Another Separator When

  • Aluminum or copper is the main target → use a non-ferrous separator.
  • The process is liquid or slurry → use wet magnetic separation.
  • The goal is weakly magnetic mineral recovery → use high-intensity or high-gradient separation.
  • Hazardous or hygienic service needs a special certified design → do not use the standard setup.
  • The hardest iron piece is beyond the proven magnetic reach → use a stronger setup, reduce the distance, move the separator or choose another type.

Check the Installation Before You Order

What must be checked before the installation is approved?

Do not treat installation as a final drawing formality. Do not approve the layout until headroom, working distance, support, nearby steel, maintenance access and the metal discharge path all work together.

What to CheckGoodIf It Does Not Work
HeadroomMagnet, cleaning belt and support fit at the required working distance, with maintenance space.Change the installation point, support or separator type.
Discharge spaceCaptured iron can enter the chute or bin without falling back into the product stream.Change the discharge side, direction or collection layout.
Nearby steelSupport steel, chutes and guards do not block the magnetic zone or service access.Move or redesign conflicting steel before installation.
Maintenance accessDrive, take-up, belt, guards and cooling or electrical service points are accessible.Redesign the layout if routine service cannot be done safely.
Material clearanceThe deepest normal material and normal surges do not hit the magnet or cleaning belt.Increase clearance or control the material profile.
SupportThe suspension and load path are shown on the project drawing.Do not install until the responsible project team checks the support design.
Send these drawings: a side view and top view showing the belt line, normal and maximum material depth, proposed magnet face, headroom, support steel, nearby steel, travel direction, discharge side, chute or bin, and maintenance space.

Existing Conveyor Example

Example: adding a separator where installation space is limited

This is an installation example, not a published customer project.

Check the conveyor drawing before choosing the machine size. On an existing line, headroom, nearby steel, discharge space and maintenance access can rule out a layout before magnetic size is finalized.

Existing Conveyor1,200 mm belt
Available Headroom850 mm
Nearby StructureSteel beams above the conveyor
Discharge SpaceLimited on one side
First DocumentSide-view or general arrangement (GA) drawing
First GoalConfirm that the machine can fit and discharge iron safely

If Headroom Is Too Low

Move the separator, change the layout or choose a different machine arrangement before ordering.

If Side Discharge Does Not Fit

Change the discharge direction, move the separation point or use another separator layout.

If Steelwork Is Too Close

Change the support layout before the machine is approved for installation.

Cleaning, Maintenance & Safety

What should you check during routine service?

Check the cleaning belt, drive, electrical system, oil-cooling parts and suspension separately. Stop the machine if the belt tracks badly, the drive is abnormal or oil leaks. Also stop for damaged electrical parts or unsafe suspension.

Cleaning Belt and Drive

Check belt tracking, tension, wear, scraper or cleat condition, pulleys, bearings, drive, guards and the full metal path.

Cooling and Electrical

Check oil-cooling parts, connections, enclosure and electrical components for leaks, unusual heat, dirt or damage.

Structure and Access

Check suspension points, fasteners, guards, clearance and material buildup. Do not run with damaged suspension or blocked discharge.

Before maintenance: isolate the electromagnet and cleaning-belt drive with the site-approved lockout procedure. Secure the equipment against movement. Follow the final equipment manual and site safety rules.
Coverlan suspended electromagnetic separator drive side for maintenance inspection
Drive-side Corvelan product view showing the cleaning-belt drive and service-side layout.

Before Shipment

How do we check the separator before production and shipment?

We agree the required checks before production starts. If the order includes a magnetic value or capture test, the test position, distance, target and pass condition are defined before the test.

Does the Machine Match the Drawing?

Check the main dimensions, suspension points, discharge direction and other project dimensions against the approved drawing.

Does the Cleaning Belt Run Correctly?

Run the belt and check direction, tracking, drive operation and the path used to discharge captured iron.

Is the Magnetic Value Measured at the Right Position?

If a magnetic value is part of the order, define the test point and distance first. Record the result at that same position.

Can It Catch the Required Iron?

For difficult jobs, use the agreed iron piece at the agreed distance. Use a moving test when belt speed is part of the problem.

Does the Finished Machine Match the Order?

Check the machine setup, electrical information, visible assembly and any test records included in the order before packing.

What Makes a Capture Test Useful?

Write down the iron piece, target position, working distance, material condition, movement condition and what counts as a pass.

If the capture test fails, do not make the test easier just to get a pass. Find the reason. Reduce the working distance or material depth, move the separator, use a stronger magnetic setup, improve material leveling, or choose another separator type. Then test the new agreed condition again.
Do not accept the separator from one easy number alone. A high handheld Gauss reading on the magnet face does not replace a defined test at the real working distance. The cleaning belt and discharge path also need to work correctly.

Actual Corvelan Product

What can you check on the actual Corvelan separator?

The product photos show the suspended body, cleaning belt, rollers, drive-side parts and suspension frame. Use the approved GA drawing for project dimensions and connection points. If the order includes a magnetic measurement or capture test, the test record should show the agreed condition and result.

Coverlan oil-cooled self-unloading suspended electromagnetic separator product view
Corvelan oil-cooled self-unloading suspended electromagnet showing the external frame, cleaning belt and drive layout.
Product PhotosShow the actual machine structure and outside arrangement.
Approved General Arrangement (GA) DrawingShows the project dimensions, suspension points and connection positions.
Magnetic MeasurementShows the field value at the agreed position when this check is included in the order.
Capture TestShows whether the agreed iron piece can be removed under the written test condition.

What to Send Corvelan

What should you send us?

Start with the material, iron you need to remove, conveyor data and installation space. For the final machine choice, also send the hardest iron piece, deepest normal material layer and working distance.

Start With These Four Things

  • Material being conveyed.
  • Iron or steel pieces that must be removed, and why they matter.
  • Throughput or conveyor loading information.
  • Photo or side-view drawing of the proposed separation point. A general arrangement drawing, or GA drawing, is also useful.

For the Final Machine Choice, Also Send

  • Belt width and belt speed.
  • Normal and maximum material depth.
  • Smallest required, typical and largest or heaviest iron pieces.
  • Expected iron position: top, middle or bottom.
  • How often iron appears and how much arrives.
  • Headroom, support steel, nearby iron or steel, discharge side and collection space.
  • Operating hours, ambient conditions, dust or moisture, power supply and control requirements.
  • Required checks: machine and installation, magnetic measurement and/or capture test.

What happens after you send your conveyor data?

1. We check the applicationWe confirm that this separator type matches the material, target iron and dry-conveyor process.
2. We choose the machine setupWe choose the magnetic type, cooling type, cleaning method and discharge arrangement.
3. We check the installationWe check working distance, headroom, support steel, service access and discharge space.
4. We confirm the drawingWe confirm the project dimensions, suspension points and electrical requirements before production.
5. We agree how the machine will be checkedIf the order needs a magnetic value or capture test, we write down the test condition before production.
6. We build and inspect the machineBefore packing, we check the finished separator against the approved project details and checks written into the order.

Before Production Starts

Confirm the separator type, machine setup, installation drawing, electrical requirements, cooling type, discharge direction and any test written into the order.

Before Shipment

Check the finished separator against the order and approved drawing. Check the cleaning-belt direction and running condition, visible assembly, electrical functions in scope, and any magnetic or capture test included in the order.

Send Your Conveyor Details

FAQ

Oil-Cooled Self-Unloading Suspended Electromagnetic Separator FAQ

When should I choose an oil-cooled self-unloading suspended electromagnet?

Choose it for a dry conveyor that regularly carries iron or steel and needs automatic discharge. It is a strong option when the job also needs an energized suspended magnet and oil cooling fits the running duty.

When should I choose air-cooled instead?

Choose air-cooled when you still need an energized magnet and automatic discharge, but the site does not want an oil-filled cooling system. The selected air-cooled design must still handle the required duty and site conditions.

When is a manual-clean suspended magnet enough?

Use manual cleaning when iron appears only occasionally and planned safe stops are acceptable. If cleaning would stop production repeatedly, use self-unloading.

When should I compare a permanent magnet?

Compare a suspended permanent magnet when it can catch the required iron at the working distance without electrical power. Use an electromagnet when the required reach or operating duty needs it.

How high should the separator be above the conveyor?

Do not choose the separator from a generic suspension height. Measure from the magnet face to the hardest iron position inside the deepest normal material layer. That is the working distance we use.

Does a higher Gauss value mean better iron removal?

No. Gauss is magnetic flux density at one defined point. A high Gauss number does not by itself prove pull force or moving capture at the real working distance. For critical protection, define the iron piece and test the real condition.

What if the material is deep and the belt is fast?

Deep material and high belt speed make capture harder. Do not choose the final separator from a catalog table alone. Test the required iron at the agreed distance and a similar belt speed.

What if the iron is sharp or very heavy?

Do not choose the cleaning belt from magnetic pickup alone. Tell us the iron shape and mass. Then check belt protection, impact path, guards, chute and collection system too.

Can this separator remove aluminum or copper?

No. Use a non-ferrous separator, such as an eddy-current separator, for aluminum or copper. Test stainless steel by its actual grade and condition because magnetic response can vary.

What must be confirmed before production starts?

Confirm the conveyor details, required iron pieces, deepest normal material layer and working distance. Also confirm the magnet and cooling type, discharge layout, support, maintenance space, electrical requirements and test method.

When is a capture test required?

Use a capture test for deep material, high belt speed, small critical iron, heavy iron or crusher protection. Use it whenever actual capture matters more than a static magnetic reading.

What happens if the capture test fails?

Do not make the test easier just to get a pass. Reduce the working distance or material depth, move the separator, use a stronger magnetic setup or choose another separator type. Then test the new agreed condition again.

How do you check whether the separator can catch my iron?

For difficult applications, define the iron piece, target position, working distance and movement condition before the test. Then use those same conditions during the capture test.

What documents and test records can I receive with the machine?

The project package can include the approved drawing and the checks written into the order. If the order includes a magnetic measurement or capture test, the corresponding test record should show the agreed condition and result.

Next Step

Send Your Separation Requirement

Send the material, belt width, belt speed, normal and maximum material depth, smallest, typical and largest iron pieces, headroom and a side-view drawing or photo. We will use these details to choose the separator type, define the machine setup and agree how it will be checked for quotation.

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