Suitable for

Suitable for belt width

Advised max. installation height

Ferrite overband magnets

Cost effective solution. Suitable for thin to thick layers and do not require a control box. Very reliable and available in many belt widths. Available in transverse or in-line versions for installation above your conveyor belt or end pulley.

  • Cross or inline version
  • For belt width 400-1600 mm
  • Easy to install
  • Permanent magnet
  • Max. installation height 450 mm
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Ferrite overband magnets examples Goudsmit offers various types and sizes in order to fit your requirements, see below for full range of products.

3 variants

Suitable for belt width : 400 mm

Price on request

ROP-F1-C-040-M-D-L-B-B-B-NA
Article number SAPB040520
Stock 0
Advised max. installation height 230 mm
Suitable for Cross mounting
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Suitable for belt width : 1200 mm

Price on request

ROP-F5-C-120-W-G-L-B-B-B-NA
Article number ROFC120350
Stock 0
Advised max. installation height 400 mm
Suitable for Cross mounting
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Suitable for belt width : 1600 mm

Price on request

ROP-F6-I-160-W-G-L-B-B-B-NA
Article number ROFI160360
Stock 0
Advised max. installation height 450 mm
Suitable for Inline mounting
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Application

An overbelt magnet is suitable for removal or separation of high volumes of iron or steel and hangs above a flat- or trough-shaped conveyor. This type of magnet is self-cleaning and continuously separates (ferromagnetic) Fe parts from material streams. The iron removal efficiency of overband magnets ranges from 70 to 90%. This depends on magnet design, product flow and placement. Automatic self-cleaning overband magnetic separators are suitable for both the recovery (recycling) of ferrous parts and the removal/elimination of impurities (iron contaminants).

These magnets are mainly suitable for coarser fractions with pieces larger than 10 mm. Thanks to the robust, reliable technology, these magnets have applications in many industries. Putting a permanent overbelt magnet in service requires nothing more than four suspension points, sufficient space and power to drive the conveyor belt.

Operation

Conveyor belt speed:

to remove ferrous or iron parts from a material flow, they must remain in a magnetic field for between approximately 0.3 and 0.5 seconds, where they are magnetized. To achieve maximum separation, it is important to optimally match the size of the magnet block (main pole) and the belt speed. This means that with a narrow overband magnet the conveyor belt beneath it must run at lower capacity (m/s) than with a wider magnet at the same suspension height. The following formula provides an indication of the maximum conveyor belt speed:

 

Maximum conveyor belt speed (b) = block magnet width (a) / 0.3 (sec.)

 

Recommended conveyor belt speed (b) = block magnet width (a) / 0.5 (sec.)

overband magnetic separator | Goudsmit Magnetics

Placement

The distance between a magnet and the conveyor belt must be as small as possible. The magnetic force decreases exponentially with increasing distance. There is, however, a minimum distance required so the rubber cleats safely remove all the ferrous parts from the material flow. There are two methods for use/placement of overband magnets: transverse and in-line. Goudsmit has a specific, optimum magnet configuration for both mounting options.

 

Transverse ('Cross') - cross belt magnetic separator

In practice, transverse placement is most common, because it is easier to install in an existing line. An additional advantage is a ferrous discharge to the side, which from the logistical perspective is easier to process.

 

'In-line'

If you have the option to place your overband magnet in line with the conveyor belt, this is always preferred. The advantage of this is that the transported material ‘breaks open’ at the end of the belt (head roller) and is therefore suspended in mid-air for several milliseconds. As a result, the magnet can easily pull the ferrous metal out of the product flow.

Overband magnet | Goudsmit Magnetics

Non magnetic zone

When positioning the magnet, the construction below the magnet such as the frame, bearing rollers and end rollers must be made of non-magnetic material. This is because steel parts will become magnetized, which will adversely affect the separation performance of the overband magnet.

 

For more information and the rule of thumb, see: Non-magnetic-zone.

overband magnetic separator | Goudsmit Magnetics

Ecoline ferrite overband magnets The Ecoline magnets have a fast delivery of 1-2 weeks, integrated drum motor and stainless steel frame. Therefore they are very robust, easy to install and very reliable.

6 variants

Suitable for belt width : 400 mm

Price on request

ROP-F1-C-040-M-D-L-B-B-B-NA
Article number SAPB040520
Stock 0
Advised max. installation height 230 mm
Suitable for Cross mounting
More info..
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Suitable for belt width : 600 mm

Price on request

ROP-F1-C-060-M-D-L-B-B-B-NA
Article number SAPB060520
Stock 0
Advised max. installation height 230 mm
Suitable for Cross mounting
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Suitable for belt width : 800 mm

Price on request

ROP-F1-C-080-M-D-L-B-B-B-NA
Article number SAPB080520
Stock 1
Advised max. installation height 230 mm
Suitable for Cross mounting
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Suitable for belt width : 1000 mm

Price on request

ROP-F1-C-100-M-D-L-B-B-B-NA
Article number SAPB100520
Stock 1
Advised max. installation height 230 mm
Suitable for Cross mounting
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Suitable for belt width : 1200 mm

Price on request

ROP-F1-C-120-M-D-L-B-B-B-NA
Article number SAPB120520
Stock 1
Advised max. installation height 230 mm
Suitable for Cross mounting
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Suitable for belt width : 1400 mm

€ 9.612,00

ROP-F1-C-140-M-D-L-B-B-B-NA
Article number SAPB140520
Stock 0
Advised max. installation height 230 mm
Suitable for Cross mounting
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Cross mounted ferrite overband magnets Transverse or cross mounted overband magnets with different magnet strengths in order to get the right suspension height for your product flow.

19 variants

Suitable for belt width : 650 mm

Price on request

ROP-F3-C-0650-W-G-L-B-B-B-NA
Article number ROFC065330
Stock 0
Advised max. installation height 280 mm
Suitable for Cross mounting
More info..
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Suitable for belt width : 800 mm

Price on request

ROP-F3-C-080-W-G-L-B-B-B-NA
Article number ROFC080330
Stock 0
Advised max. installation height 280 mm
Suitable for Cross mounting
More info..
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Suitable for belt width : 1000 mm

Price on request

ROP-F3-C-100-W-G-L-B-B-B-NA
Article number ROFC100330
Stock 0
Advised max. installation height 280 mm
Suitable for Cross mounting
More info..
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Suitable for belt width : 1200 mm

Price on request

ROP-F3-C-120-W-G-L-B-B-B-NA
Article number ROFC120330
Stock 0
Advised max. installation height 280 mm
Suitable for Cross mounting
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Suitable for belt width : 650 mm

Price on request

ROP-F4-C-065-W-G-L-B-B-B-NA
Article number ROFC065340
Stock 0
Advised max. installation height 320 mm
Suitable for Cross mounting
More info..
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Suitable for belt width : 800 mm

Price on request

ROP-F4-C-080-W-G-L-B-B-B-NA
Article number ROFC080340
Stock 0
Advised max. installation height 320 mm
Suitable for Cross mounting
More info..
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Suitable for belt width : 1000 mm

Price on request

ROP-F4-C-100-W-G-L-B-B-B-NA
Article number ROFC100340
Stock 0
Advised max. installation height 320 mm
Suitable for Cross mounting
More info..
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Suitable for belt width : 1200 mm

Price on request

ROP-F4-C-120-W-G-L-B-B-B-NA
Article number ROFC120340
Stock 0
Advised max. installation height 320 mm
Suitable for Cross mounting
More info..
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Suitable for belt width : 1400 mm

Price on request

ROP-F4-C-140-W-G-L-B-B-B-NA
Article number ROFC140340
Stock 0
Advised max. installation height 320 mm
Suitable for Cross mounting
More info..
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Suitable for belt width : 1600 mm

Price on request

ROP-F4-C-160-W-G-L-B-B-B-NA
Article number ROFC160340
Stock 0
Advised max. installation height 320 mm
Suitable for Cross mounting
More info..
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Suitable for belt width : 800 mm

Price on request

ROP-F5-C-080-W-G-L-B-B-B-NA
Article number ROFC080350
Stock 0
Advised max. installation height 400 mm
Suitable for Cross mounting
More info..
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Suitable for belt width : 1000 mm

Price on request

ROP-F5-C-100-W-G-L-B-B-B-NA
Article number ROFC100350
Stock 0
Advised max. installation height 400 mm
Suitable for Cross mounting
More info..
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Suitable for belt width : 1200 mm

Price on request

ROP-F5-C-120-W-G-L-B-B-B-NA
Article number ROFC120350
Stock 0
Advised max. installation height 400 mm
Suitable for Cross mounting
More info..
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  • Request a quote or order

Suitable for belt width : 1400 mm

Price on request

ROP-F5-C-140-W-G-L-B-B-B-NA
Article number ROFC140350
Stock 1
Advised max. installation height 400 mm
Suitable for Cross mounting
More info..
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Suitable for belt width : 1600 mm

Price on request

ROP-F5-C-160-W-G-L-B-B-B-NA
Article number ROFC160350
Stock 0
Advised max. installation height 400 mm
Suitable for Cross mounting
More info..
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Suitable for belt width : 1000 mm

Price on request

ROP-F6-C-100-W-G-L-B-B-B-NA
Article number ROFC100360
Stock 0
Advised max. installation height 450 mm
Suitable for Cross mounting
More info..
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Suitable for belt width : 1200 mm

Price on request

ROP-F6-C-120-W-G-L-B-B-B-NA
Article number ROFC120360
Stock 0
Advised max. installation height 450 mm
Suitable for Cross mounting
More info..
  • Specification
  • Accessories
  • Videos
  • Downloads
  • Request a quote or order

Suitable for belt width : 1400 mm

Price on request

ROP-F6-C-140-W-G-L-B-B-B-NA
Article number ROFC140360
Stock 0
Advised max. installation height 450 mm
Suitable for Cross mounting
More info..
  • Specification
  • Accessories
  • Videos
  • Downloads
  • Request a quote or order

Suitable for belt width : 1600 mm

Price on request

ROP-F6-C-160-W-G-L-B-B-B-NA
Article number ROFC160360
Stock 0
Advised max. installation height 450 mm
Suitable for Cross mounting
More info..
  • Specification
  • Accessories
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  • Downloads
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Inline mounted ferrite overband magnets Inline or parallel mounted overband magnets with different magnet strengths in order to get the right suspension height for your product flow.

8 variants

Suitable for belt width : 800 mm

Price on request

ROP-F3-I-080-W-G-L-B-B-B-NA
Article number ROFI080330
Stock 0
Advised max. installation height 280 mm
Suitable for Inline mounting
More info..
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  • Request a quote or order

Suitable for belt width : 1000 mm

Price on request

ROP-F3-I-100-W-G-L-B-B-B-NA
Article number ROFI100330
Stock 0
Advised max. installation height 280 mm
Suitable for Inline mounting
More info..
  • Specification
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  • Request a quote or order

Suitable for belt width : 1000 mm

Price on request

ROP-F4-I-100-W-G-L-B-B-B-NA
Article number ROFI100340
Stock 0
Advised max. installation height 320 mm
Suitable for Inline mounting
More info..
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Suitable for belt width : 1200 mm

Price on request

ROP-F4-I-120-W-G-L-B-B-B-NA
Article number ROFI120340
Stock 0
Advised max. installation height 320 mm
Suitable for Inline mounting
More info..
  • Specification
  • Accessories
  • Videos
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  • Request a quote or order

Suitable for belt width : 1200 mm

Price on request

ROP-F5-I-120-W-G-L-B-B-B-NA
Article number ROFI120350
Stock 0
Advised max. installation height 400 mm
Suitable for Inline mounting
More info..
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Suitable for belt width : 1400 mm

Price on request

ROP-F5-I-140-W-G-L-B-B-B-NA
Article number ROFI140350
Stock 0
Advised max. installation height 400 mm
Suitable for Inline mounting
More info..
  • Specification
  • Accessories
  • Videos
  • Downloads
  • Request a quote or order

Suitable for belt width : 1400 mm

Price on request

ROP-F6-I-140-W-G-L-B-B-B-NA
Article number ROFI140360
Stock 0
Advised max. installation height 450 mm
Suitable for Inline mounting
More info..
  • Specification
  • Accessories
  • Videos
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  • Request a quote or order

Suitable for belt width : 1600 mm

Price on request

ROP-F6-I-160-W-G-L-B-B-B-NA
Article number ROFI160360
Stock 0
Advised max. installation height 450 mm
Suitable for Inline mounting
More info..
  • Specification
  • Accessories
  • Videos
  • Downloads
  • Request a quote or order

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Suitable for thin to thick layers and do not require a control box. Very reliable and available in many belt widths. Transverse or inline installation above your conveyor belt.

Ferrite overband magnet in mobile application

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