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Separation Systems

Industrial separation systems


 

Overbelt magnet systems


The most important application for overbelt magnet systems is ferrous metal separation from materials on conveyor belts. To do this, they are installed over the conveyor belt. The magnetic system lifts the ferrous particles from the material flow passing underneath and then drops them into a collection bin when they leave the magnetic field.

The working surface of the magnets is protected by a stainless steel plate which absorbs any wear. This type of ferrous separation system is often used in industry to prevent ferrous particles damaging production machines such as shredders. A growing application area is the recycling  industry often in combination with Eddy Current non-ferrous metal separators. The overbelt magnet systems are supplied in two main types, one using permanent magnets and the other electromagnets. Last mentioned for effective field depth > 500 mm.

This type of ferrous separation system is equipped with a powerful permanent magnet.
The standard drive for the overbelt magnet system (up to and including the 320 series) is a drum motor. On the 400 and 500 series, the standard drive is by means of a shaft-mounted reduction motor. If required, the belt on the 220 series can also be equipped with the same
sort of motor (add "/21" to the article number). The overbelt systems are equipped with a belt tensioner and because of the concave shape of the drums, the belt is self centring. The belt is made from synthetic rubber with vulcanised idlers. The electrical connections conform
to standard IP 54 or, if required, IP 65 and the standard power supply required is 3 x 380 V 50 Hz. Systems are available for other voltages if necessary. Some types can be supplied in a 'stretch' version. In these, a transport pole is added as a continuation of the main pole. This transport pole produces a change in the magnetic field which causes the ferrous particles on the belt to move so that any non-ferrous particles which had been hold by the iron articles can drop back into the material flow. This means there are fewer impurities in the ferrous collection. The 'stretch' versions can only be installed with the belt running in the same direction as the conveyor belt. In the 400 and 500 series, the rubber conveyor belt has a wear-resistant layer (Correx blue 45° shore) between the idlers.

  Overbelt magnet system mounted transversely over the conveyor belt.

  Overbelt magnet system mounted longitudinally over the end roller of the conveyor belt.


Effective depth of magnetic field - overband magnets
Article no. Bar
Ø5x25
Bar
Ø5x75
Nut
M16
BM 28.001 bis BM 28.003 165 225 130
BM 28.101 bis BM 28.111 255 370 180
BM 28.130 bis BM 28.140 260 380 195
BM 28.010 bis BM 28.014 295 430 225
BM 28.020 bis BM 28.024 315 460 240
BM 28.030 bis BM 28.035 335 480 250
BM 28.040 bis BM 28.047 360 500 275


Overbelt magnet systems with ceramic magnet system



Series 135
Article no. Dia. drum B E* G* H* Power motor Weight
mm mm mm mm mm kW kg
BM 28.001 135 955 520 310 130 0,55 153
BM 28.002 135 1155 720 310 130 0,55 197
BM 28.003 135 1355 920 310 130 0,55 242
*Magnet dimensions

Series 220
Article no. Dia. drum B E* G* H* Power motor Weight
mm mm mm mm mm kW kg
BM 28.101 220 1050 430 505 180 1,1 335
BM 28.102 220 1150 530 505 180 1,1 375
BM 28.103 220 1250 635 505 180 1,1 420
BM 28.104 220 1355 735 505 180 1,1 470
BM 28.105 220 1455 835 505 180 1,1 515
BM 28.106 220 1555 935 505 180 1,1 560
BM 28.107 220 1655 1040 505 180 1,1 600
BM 28.108 220 1755 1140 505 180 1,1 650
BM 28.109 220 1860 1250 505 180 1,1 695
BM 28.110 220 1960 1350 505 180 1,1 740
BM 28.111 220 2060 1450 505 180 1,1 785
BM 28.130 220 1050 430 810 180 1,5 470
BM 28.131 220 1150 530 810 180 1,5 545
BM 28.132 220 1250 635 810 180 1,5 620
BM 28.133 220 1355 735 810 180 1,5 695
BM 28.134 220 1455 835 810 180 1,5 765
BM 28.135 220 1555 935 810 180 1,5 840
BM 28.136 220 1655 1040 810 180 1,5 915
BM 28.137 220 1755 1140 810 180 1,5 990
BM 28.138 220 1860 1250 810 180 1,5 1060
BM 28.139 220 1960 1350 810 180 1,5 1140
BM 28.140 220 2060 1450 810 180 1,5 1210
*Magnet dimensions

Series 320
Article no. Dia. drum B E* G* H* Power motor Weight
mm mm mm mm mm kW kg
BM 28.010 320 1705 835 610 247 2,2 734
BM 28.011 320 1910 1040 610 247 2,2 891
BM 28.012 320 2120 1250 610 247 2,2 1048
BM 28.013 320 2320 1450 610 247 2,2 1250
BM 28.014 320 2520 1650 610 247 2,2 1363
BM 28.020 320 1705 835 810 247 2,2 930
BM 28.021 320 1910 1040 810 247 2,2 1136
BM 28.022 320 2120 1250 810 247 2,2 1342
BM 28.023 320 2320 1450 810 247 2,2 1548
BM 28.024 320 2520 1650 810 247 2,2 1754
*Magnet dimensions

Series 400
Article no. Dia. drum B E* G* H* Power motor Weight
mm mm mm mm mm kW kg
BM 28.030 400 1885 835 810 350 2,2 1336
BM 28.031 400 2090 1040 810 350 2,2 1622
BM 28.032 400 2300 1250 810 350 2,2 1789
BM 28.033 400 2500 1450 810 350 2,2 2194
BM 28.034 400 2700 1650 810 350 2,2 2491
BM 28.035 400 2900 1850 810 350 2,2 2767
*Magnet dimensions

Series 500
Article no. Dia. drum B E* G* H* Power motor Weight
mm mm mm mm mm kW kg
BM 28.040 500 2085 835 900 410 2,2 1758
BM 28.041 500 2290 1040 900 410 2,2 2135
BM 28.042 500 2500 1250 900 410 2,2 2512
BM 28.043 500 2700 1450 900 410 2,2 2819
BM 28.044 500 2900 1650 900 410 3,0 3266
BM 28.045 500 3100 1850 900 410 3,0 3642
BM 28.046 500 3300 2050 900 410 3,0 4019
BM 28.047 500 3500 2250 900 410 3,0 4369
*Magnet dimensions

Overbelt magnet systems with  neodymium magnet system


Effective depth of magnetic field - overbelt magnets
Article no. Bar
Ø5x25
Bar
Ø5x75
Nut
M16
BM 28.070/ND bis BM 28.074/ND 323 408 256
BM 28.075/ND bis BM 28.079/ND 418 541 313



Article no. Dia. drum B E* G* H* Power motor Weight
mm mm mm mm mm kW kg
BM 28.070/ND 215 1453 800 483 161,5 2,2 660
BM 28.071/ND 215 1653 1000 483 161,5 2,2 750
BM 28.072/ND 215 1853 1200 483 161,5 2,2 840
BM 28.073/ND 215 2053 1400 483 161,5 2,2 930
BM 28.074/ND 215 2253 1600 483 161,5 2,2 1020
BM 28.075/ND 215 1453 800 843 161,5 2,2 915
BM 28.076/ND 215 1653 1000 843 161,5 2,2 1065
BM 28.077/ND 215 1853 1200 843 161,5 2,2 1215
BM 28.078/ND 215 2053 1400 843 161,5 2,2 1365
BM 28.079/ND 215 2253 1600 843 161,5 2,2 1515
*Magnet dimensions

Overbelt magnet systems multipole for longitudinally discharge


400 execution:
drive: geared motor, manufacturer SEW, power: 2,2 - 4 kW (depending on model)



Article no. Dia. drum A B
mm mm mm
BM 28.400/LD 400 800 1000
BM 28.401/LD 400 800 1200
BM 28.402/LD 400 1000 1000
BM 28.403/LD 400 1000 1200
BM 28.404/LD 400 1000 1400
BM 28.405/LD 400 1200 1200
BM 28.406/LD 400 1200 1400
BM 28.407/LD 400 1200 1600
BM 28.408/LD 400 1400 1400
BM 28.409/LD 400 1400 1600
BM 28.410/LD 400 1400 1800
BM 28.411/LD 400 1600 1600
BM 28.412/LD 400 1600 1800
BM 28.413/LD 400 1600 2000


500 execution:
drive: geared motor, manufacturer SEW, power: 3 - 5,5 kW (depending on model)



Article no. Dia. drum A B
mm mm mm
BM 28.500/LD 500 800 1000
BM 28.501/LD 500 800 1200
BM 28.502/LD 500 1000 1000
BM 28.503/LD 500 1000 1200
BM 28.504/LD 500 1000 1400
BM 28.505/LD 500 1200 1200
BM 28.506/LD 500 1200 1400
BM 28.507/LD 500 1200 1600
BM 28.508/LD 500 1400 1400
BM 28.509/LD 500 1400 1600
BM 28.510/LD 500 1400 1800
BM 28.511/LD 500 1600 1600
BM 28.512/LD 500 1600 1800
BM 28.513/LD 500 1600 2000
















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