Transport with MagnetsLifting capacity of load Lifting Magnets The air gap between magnet pole and workpiece surface, as well as shape, surface quality and type of material of the

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TechnologyTechnologyTechnologyFull ofFull ofFull ofAttractionAttractionAttraction

ClampingPlates

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Transport with Magnets

Non-Ferrous Separators

Wagner Magnete GmbH & Co. KGObere Straße 15D-87751 HeimertingenPhone: +49 (0) 8335 980-0 Fax: +49 (0) 8335 980-270www.wagner-magnete.dee-mail: [email protected]

Transport with Lifting Magnets

Electro Lifting MagnetsElectro Permanent Lifting Magnets For the transport and handling technology,

we have the electropermanent and electromagnetic systems in our program for various applications. We deliver from the smallest robot gripper magnet to heavy duty magnets for docks and steel works. They can be equipped with fi xed or removable suspension brackets and chains. In addition, we offer complete units such as cross heads with lifting magnets, magnetic systems, backup batteries and control systems.

for the transport of:• pipes, shafts• plates, slabs • thin plates• profi les, beams, molded parts• other parts

Permanent Lifting Magnets

The iron core in electropermanent magnets is replaced by permanent magnetic material. This material can be magnetized by means of a short current pulse from the ambient excitation winding. Here, a permanent magnetic (continuous) holding force is generated which holds the component also without further current supply. Thus, these systems are absolutely safe load handling devices in handling technology with very little power consumption. Even in case of power failure or cable break, the full holding force in maintained.

The magnet is switched off by triggering an opposite demagnetizing pulse. To operate the electroperma-nent lifting magnet, a pole-reversal control unit is required.

Electro Lifting Magnets

Permanent Lifting Magnets

Electro Permanent Lifting Magnets

Types 518, 535

The magnetic fi eld is created by the DC-coil in the magnet system, as every current carrying wire is surrounded by a magnetic fi eld. The coil encloses an iron core which is connected with both yoke and arm. By this, north and south pole are generated. Depending on the type, very high holding forces with high magnetic fi elds can be obtained.

Electro magnets hold parts only as long as DC current is supplied to the magnet. After switching off or in case of power failure, the parts fall off.

If the lifting magnet is not only used in secured areas, a backup battery and an automatic warning device to signal any power failure are required acc. to EN13155.

Due to the installed permanent magnet system, the permanent lifting magnets can be used without electric control and complex wiring.In addition the permanent magnet design provides suffi cient magnetic force at any time. The magnet system can be easily switched on/off using the control lever. If the magnet is switched on this status is secured by a locking system.

Types 0519

Types 5180N, 5190N

Lifting capacity of load Lifting MagnetsThe air gap between magnet pole and workpiece surface, as well as shape, surface quality and type of material of the goods to be transported have substantial effects on the load bearing capacity of the magnet.

Special tests have been carried out for the Wagner load lifting magnets during which the pull-off strength (measured according to EN 13155) depending on air gap, material thickness and material type is determined.

Air gap effectsThe distance between pole face of the lifting magnet and the surface of the good to be transported is called air gap. The size of the air gap is decisive for the lifting capacity of the load lifting magnet. The larger the air gap the smaller the lifting capacity of the magnet. Air gaps can be created inter alia by uneven surfaces, coatings, packing material, dirt as well as snow and ice.

Effects of the workpiece dimensionsThe cross section of the transport material through which the electric fl ux lines fl ow determine the strength by which the material is stuck to the magnet. The magnetic fl ux of the lifting magnet requires an appropriate cross section, which is mainly defi ned by its height (thickness).

If length and width of the transport material larger than the dimensions of the lifting magnet, thin materials may sag, and an air gap is created between lifting magnet and load. This reduces the load bearing capacity of the lifting magnet. Excessively long parts must therefore be picked by multiple magnets.

To obtain full magnetic force, the magnet has to have full direct contact over the complete pole surface. Only partial contact of the pole surface is not permitted.

Effects of the surface qualityThe load bearing capacity is also reduced if the transport material is either coated, shows signs of rust, scales or dirt, or has any other coating. All this will have the effect of an air gap.

The same applies to the surface quality of the magnet. Rough or uneven surfaces will create air gaps that will reduce the load bearing capacity of the magnets.

Effects of the material compositionThe smaller the carbon content in the steel, the higher its magnetizability. Alloyed steel or steel with high carbon content offer poor magnetizability, which means, that the holding force of the magnet is reduced.

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100

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Additionally, the magnetization of work pieces is infl uenced by heat treatment as this changes the physical structure of the material. Hardened work pieces are less effective magnetic fl ux conductors.

Magnetizability Material

100% technically pure iron

approx. 95% 1.0037 (St 37-2) unalloyed structural steel

approx. 80% 1.0050 (St 50-2) unalloyed structural steel

approx. 60% 1.2379 (X155CrVMo12-1) cold work tool steel

approx. 30% EN-JL (GG) lamellar graphite cast iron

Electro Lifting Magnet Electro Permanent Lifting Magnets

Operation only in secured area or with backup battery (hold period > 10 Min.)

Requires only current pulse for clamping and unclamping

Types 518, 535 Types 5180N, 5180 Type 5190N

Use • Handling systems and robots in secured area

• Crane systems with backup battery

• Crane systems • Crane systems and manipula-tors

• Handling systems and robots

Special features

• Universal handling• Variable magnet dimensions • High load capacities despite air gap• Variable depth effect (sheet-metal transport)• Very short cycle times possible• Demagnetizing of parts possible• Magnet heats up

• Safe transport without backup battery

• High load capacities• Max. material temperature

60°C

• Compact dimensions• Slender design (for rod-shaped

parts)• Transport of cylindrical parts on

the circumference possible by using pole shoes

• Max. material temperature 80°C

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Options:• Different suspension brackets

• Transport holes at rear side

• Special lengths

• Continuous center pole

• Pole plate to protect the pole surface in case of rough applications

• Complete magnet cross bars

• Rectifi er and demagnetizing switch for simple demands

• Pole-reversal control units used as DC supply and pole reversal units

• Control units to operate pole-reversal control units and rectifi ers

Electro Lifting Magnet

Electro Lifting Magnets of type 518 are used in docks, steel works and shipyards. They are used for handling and transport of various steel products.

The magnetic fi eld is created by the DC-coil in the magnet system. The coil encloses an iron core which is connected with both yoke and arm. By this, north and south pole are generated.

Due to the different widths of the magnets with different depth effect, special applica-tions are possible such as single transport or package transport of metal sheets.

The optimized structure of the magnet housing allows high holding forces even with large air gaps. The continuous center pole allows the picking-up of mass parts up to the outermost sections over the complete length of the magnet.

If the Electro Lifting Magnet is not only used in secured areas, a backup battery and an automatic warning device to signal any power failure are required. This ensures that the transported parts are held safely and emergency measures can be taken. After switching off or in case of power failure, the parts become loose instantly or slightly delayed, depending on the material and weight.

The body of the magnet consists of special steel with high magnetic conductivity. The coil area can be protected using a pole plate (for rough applications). The winding is made of highly insulated copper or aluminum wire, which is tightly encapsula-ted into the magnet housing, and protected

against any vibration or moisture. The electrical connection on the back side of the magnet is covered by a massive steel cover to protect against any damage.

Dimensions and technical data:

measured acc. to EN13155, at air gap = 0.5 mm calculated with double safety for pull-off strength at operating temperature, with regard to air gap specifi cation approx. width magnet / 300 acc. to EN13155 for lifting capacity design

• Power supply: If the lifting magnet is not only used in secured areas, a backup battery and an automatic warning device to signal any power failure are required. This backup battery provides power to the magnet which allows holding the load for at least 10 minutes. We offer magnet control units which include the backup batteries required acc. to EN13155 (not necessary in secured areas).

• Nominal voltage: 110 / 220 Volt DC• Protection class: IP 64• rel. operating time: 60 to 100 %• Other dimensions available upon request.

Type Widthb

[mm]

Lengtha

[mm]

Heightc

[mm]

Output

[Watt]

Pull-off-strength

[daN]

lifting capacity

[daN]

at air gap

[mm]

518-13/40 130 400 110 220 1540 770 0,5

518-13/50 130 500 110 280 2160 1080 0,5

518-13/60 130 600 110 315 2600 1300 0,5

518-13/80 130 800 110 420 3200 1600 0,5

518-13/100 130 1000 110 560 4600 2300 0,5

518-20/40 200 400 117 260 2600 1150 0,7

518-20/60 200 600 180 970 4000 1750 0,7

518-20/100 200 1000 180 1450 8200 3800 0,7

518-20/120 200 1200 180 1600 9800 4500 0,7

518-30/50 300 500 138 450 4200 1800 1,0

518-30/60 300 600 138 590 5200 2200 1,0

518-30/70 300 700 235 680 7000 3000 1,0

518-30/100 300 1000 235 800 10800 4400 1,0

518-45/100 450 1000 320 2900 19000 8000 1,5

518-60/100 600 1000 350 4000 26000 10000 2,0

518-60/160 600 1600 370 5800 53000 22000 2,0

Electro Lifting MagnetType 518

Options:• Different suspension brackets (also

special designs)


• Pole plate to protect the pole surface in case of rough use

• Special design for high workpiece temperatures

• Special design for low ambient temperatures

• Plug-type connectors for supply and control system connection

• Inching function to ensure one-plate pick-up

The workpieces are held by the integrated permanent magnet system without further current supply. A high-maintenance battery system as used for electric magnets is therefore not necessary. In case of power failure, the magnet maintains its holding force and the workpieces do not fall off!

Clamping and unclamping of ferromagnetic parts on and from Electro Permanent Lifting Magnets is made by a short current pulse which activates or deactivates the permanent magnet system. This pulse control ensures low energy consumption at very low self-heating.

Electro Permanent Lifting Magnet

Electro Permanent Lifting Magnets of type 5180N are used where ferromagnetic parts are to be lifted and transported safely.

With their integrated double magnet sys-tem high lifting capacities are achieved with very little weight of the magnet. Due to the good depth effect large air gaps can easily be bridged. Therefore, type 5180N is particularly suited for the transport of fl at workpieces such as plates, slabs and large machine components.

For large or very long workpieces it is pos-sible to use several magnets on one cross bar.

Our pole reversal control units activate the Electro Permanent Lifting Magnets quickly and reliably. The magnetizing process is monitored at every activation of the magnet. This guarantees optimal operational safety, even in the event of a power failure. Depending on the type, up to 16 holding force levels are available in order to be able, for example, to pick up even very thin parts. The use of multiple demagnetizing programs enables quick and exact demagnetizing. The pole rever-sal unit can be activated via the PLC or a separate control unit, or by using the keyboard on the lifting magnet.


measured acc. to EN13155, at air gap = 0 mm, steel plate thickness: 100 mm calculated with triple safety for pull-off strength with regard to air gap specifi cation approx. width magnet / 300 acc. to EN13155 for lifting capacity design

Type Widthb

[mm]

Lengtha

[mm]

Heightc

[mm]

Weightca.

[kg]

Pull-off-strength

[daN]

lifting capacity

[daN]

at air gap

[mm]

5180N-25/50 250 500 240 230 8700 2400 0,8

5180N-25/60 250 600 240 255 12900 3200 0,8

5180N-25/75 250 750 240 320 18900 4500 0,8

5180N-50/60 500 600 240 510 28500 5400 1,5

5180N-50/75 500 750 240 640 39600 7900 1,5

5180N-75/100 750 1000 270 1450 72000 10000 2,5

5180N-75/130 750 1300 270 1800 96000 12000 2,5

5180N-75/160 750 1600 270 2400 126000 17500 2,5

• For lifting magnets, type 5180N-25/… and 5180N-50/… the pole plate can be ordered optionally.

• For lifting magnets, type 5180N-75/… the pole plate is part of the standard scope of delivery, that means the height c = incl. pole plate specifi ed in the table.

• Nominal voltage as pulse EP360 Volt DC

• Protection class: IP 64

• Other dimensions available upon request.

Electro PermanentLifting MagnetType 5180N

Characteristics:Highest level of safety • Magnetic force maintained even in

case of power failure• Lifting capacity specifi cations with triple

safety acc. to EN13155 to pull-off strength

Energy-conscious• Power used only for short pulses

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Options:• Different suspension brackets (also

special designs)


• Pole shoes (prism-shaped or special designs)

• Handle with buttons

• Plug-type connectors for supply and control system connection

• Inching function to ensure one-plate pick-up

• Different pulse voltages

• Cycle time > 20s, special types availab-le for shorter cycle times

Electro Permanent Lifting Magnet

Electro Permanent Lifting Magnets of type 5190N are used where ferromagnetic parts are to be lifted and transported safely.

The workpieces are held by the integra-ted permanent magnet system without further current supply. A high-main-tenance battery system as used for electric magnets is therefore not necessary. In case of power failure, the magnet maintains its holding force and the workpieces do not fall off!

The integrated bipolar double magnet system allows not only high lifting forces at low magnet weight for the transport of fl at and cubic parts but also the handling of round parts such as shafts and pipes by using prism-shaped pole shoes.

Our pole reversal control units activate the Electro Permanent Lifting Magnets quickly and reliably. The magnetizing process is monitored at every activation of the magnet. This guarantees optimal operational safety, even in the event of a power failure. Depending on the type, up to 16 holding force levels are available in order to be able, for example, to pick up even very thin parts. The use of multiple demagnetizing programs enables quick and exact demagnetizing. The pole reversal unit can be activated via the PLC or a separate control unit, or by using the keyboard on the lifting magnet.

Clamping and unclamping of ferromag-netic parts on and from Electro Permanent Lifting Magnets is made by a short current pulse which activates or deactivates the permanent magnet system. This pulse control ensures low energy consumption at very low self-heating.

Its slim design also allows the handling of single rod-shaped parts up to the edge of the stack whereby any space between the parts in the stack can be neglected. For large or very long workpieces it is possible to use several magnets on one cross bar.


measured acc. to EN13155, at air gap = 0 mm calculated with triple safety for pull-off strength with regard to air gap specifi cation approx. width magnet / 300 acc. to EN13155 for lifting capacity design

• Nominal voltage as pulse EP210 or EP360 Volt DC• Protection class: IP 64• Other dimensions available upon request.

Electro PermanentLifting MagnetType 5190N

Characteristics:Highest level of safety • Magnetic force maintained even in case

of power failure• Lifting capacity specifi cations with triple

safety acc. to EN13155 to pull-off strength

Energy-conscious• Power used only for short pulses

Type Widthb

[mm]

Lengtha

[mm]

Heightc

[mm]

Weightca.

[kg]

Pull-off-strength

[daN]

lifting capacity

[daN]

at air gap

[mm]

5190N-6/15 60 150 120 7,0 720 180 0,2

5190N-6/19 60 190 120 9,0 900 230 0,2

5190N-6/22.5 60 225 120 10,5 1095 275 0,2

5190N-6/26 60 260 120 12,0 1170 270 0,2

5190N-6/30 60 300 120 14,0 1470 370 0,2

5190N-6/34 60 340 120 16,0 1710 430 0,2

5190N-6/38 60 380 120 17,0 1950 460 0,2

5190N-6/42 60 420 120 18,0 2010 490 0,2

5190N-6/46 60 460 120 21,0 2100 520 0,2

5190N-6/50 60 500 120 22,0 2400 600 0,2

5190N-10/20 100 200 140 19,0 1620 420 0,3

5190N-10/25 100 250 140 22,0 1950 520 0,3

5190N-10/30 100 300 140 28,0 2400 610 0,3

5190N-10/35 100 350 140 33,0 2880 750 0,3

5190N-10/40 100 400 140 36,0 3180 800 0,3

5190N-10/45 100 450 140 41,0 3600 940 0,3

5190N-10/50 100 500 140 44,0 4200 1100 0,3

5190N-20/50 200 500 255 180 7800 2100 0,5

5190N-20/60 200 600 255 202 9600 2600 0,5

5190N-20/80 200 800 255 280 13500 3800 0,5

5190N-20/100 200 1000 255 336 17100 4900 0,5

Options:

• Fastening thread at the rear

• Electrical connection in various designs according to the customer specifi cations.

• Rectifi er and demagnetisation switch (for simple demands)

• Pole reversal control units that work as a DC supply and as a polarity-reversing unit

• Control units to operate the pole reversal control units and rectifi ers

Electro-Holding magnet

Electro-holding magnets of type 515 are used for commercial holding of ferro-magnetic parts in production and device manufacturing.

The magnetic fi eld is created by the DC-coil system in the magnet. The coil embedded in an iron core, north and south pole generates. The magnetic effect only works with continous electric power.

The magnetic body is made from special steel with high magnetic conductivity. The coil is made from highly insulated copper wire and is cast in a magnetic housing, fully vibration- and moisture-protected.

The electrical connection is offered in various designs according to the customer specifi cations. The actuation with 24 V DCcan occur through our rectifi er or on actuation via PLC in full-automatic mode with our pole reversal control unit.

Type Length a[mm]

Power[Watt]

Adhesive force [N]

Weight[kg]

b[mm]

c[mm]

d[Q‘ty]

515-4/15 150 15 1350 1,3 40 70 2

515-4/20 200 20,5 1800 1,7 40 120 2

515-4/30 300 30 2700 2,5 50 200 2

515-4/40 400 37 3600 3,3 40 160 3

515-4/50 500 45 4500 4,2 40 210 3

515-4/60 600 55 5400 5,0 40,5 173 4

515-4/70 700 64 6300 6,0 40 155 5

515-4/80 800 72 7200 6,7 40 180 5

515-4/90 900 82 8100 7,5 40 164 6

515-4/100 1000 92 9000 8,3 40 184 6

Type Length a[mm]

Power[Watt]

Adhesive force [N]

Weight[kg]

b[mm]

c[mm]

d[Q‘ty]

515-2.6/10 102 10 450 0,4 27 48 2

515-2.6/15 152 14 850 0,6 51 50 2

515-2.6/20 202 19 1250 0,8 51 50 3

515-2.6/30 302 28 2000 1,0 50,5 67 4

515-2.6/40 402 38 2700 1,3 51 60 6

515-2.6/50 502 47 3500 1,7 51 80 6

515-2.6/60 602 56 4200 2,0 49 72 8

Different lengths and nominal voltage available on request.

Different lengths and nominal voltage available on request.

Electro-holding magnetType 515-4

Design:• Nominal voltage: 24 V DC• Protection class:

- IP 65 with cable connection- IP 00 with terminal

• Ambient temperature: max. 45 °C• rel. operating time: 100 %

Adhesive force:The adhesive forces specifi ed in the table refer to workpieces with ground surface, a strength of = 10 mm, steel 1.0037, with 100 % charging of the pole surface, air gap = 0 mm and coil-temperature = 20 °C. The adhesive force reduces for workpieces with less thickness or rougher surfaces as well as for increased coil temperature.


Electro-holding magnetType 515-2.6

Design:• Nominal voltage: 24 V DC• Protection class:

IP 64 / 65 as per connection• Ambient temperature: max. 45 °C• rel. operating time: 100 %

Adhesive force:The adhesive forces specifi ed in the table refer to workpieces with ground surface, a strength of = 8 mm, steel 1.0037, with 100 % charging of the pole surface and an air gap = 0 mm. For workpieces with less thickness or rougher surfaces, the adhesive force reduces.

M8 (d = quantity)

Electrical connection options: Terminal or cable connection(specify when ordering)

M8 (d = quantity)

Options:

• Fastening thread at the rear

• Rectifi er and demagnetisation switch (for simple demands)

• Pole reversal control units that work as an adjustable DC supply and as a polari-ty-reversing unit

• Control units to operate the pole reversal control units and rectifi ers

• This magnet is also used as a holding magnet, e. g. for fi re safety doors. These are kept open in normal operation and can be switched off immediately in case of fi re - the fi re safety door closes. Here, the design is according to the pull-of-strengths mentioned in the table.

Electro-lifting magnet

Electro-lifting magnets of type 535 und 536 can be used for transport and wrapping of steel products as well as for commercial holding of ferromagnetic parts in production and in device manufacturing, where particularly high pull-off-strengths are necessary.

For fi xing the magnets tapped holes are provided at the back.

The magnetic body is made from special steel with high magnetic conductivity. The coil is made from highly insulated copper wire and is cast in a magnetic housing, fully vibration- and moisture-protected.

The electrical connection is offered in various designs according to the customer specifi cations. The DC supply can occur through our rectifi er or on actuation via PLC in full-automatic mode with our pole reversal control unit.

If the electro-lifting magnet is not used only in the protected area, a backup-bat-tery and an automatic warning device is necessary to signal power failure as per EN13155. This ensures that the transported parts are held safely and emergency mea-sures can be taken. After switching off or in case of power failure, the parts become loose instantly or slightly delayed, depen-ding on the material and weight.

Electro-lifting magnetType 535


Type Ø D[mm]

H[mm]

Power[Watt]

Weight[kg]

Pull-off strength

[daN] Lifting capacity

[daN]

535-4 40 32 5 0,30 50 25

535-5 50 32 7 0,42 90 45

535-6,3 63 32 10 0,65 180 90

535-8 80 32 14 1,10 300 150

535-10 100 32 21 1,70 460 230

535-15 150 50 42 5,80 800 400

Electro-lifting magnetType 536

measured acc. to EN13155, at air gap = 0 mm calculated with 2x safety from the pull-off-strength at operating temperature

• Nominal voltage: 24 / 110 / 220 V DC• Protection class: IP 00 to IP 65 as per connection type• rel. operating time: 60 to 100 %• Other dimensions available upon request.

Type Ø D[mm]

H[mm]

Power[Watt]

Weight[kg]

Pull-off strength

[daN] Lifting capacity

[daN]

536-4 40 65 8,5 0,55 50 25

536-5 50 65 9,5 0,85 100 50

536-6,3 63 65 13 1,30 180 90

536-8 80 65 18 2,10 300 150

536-10 100 65 22 3,35 480 240

536-15 150 65 44 7,55 800 400

536-18 180 80 66 14,5 1500 750

536-25 250 100 165 34,0 3000 1500

536-30 300 110 220 55,0 3600 1800

Standard version:• Illuminated pushbutton in stainless steel

mounting• Aluminum housing with slip-resistant

rear side• Housing dimensions (LxWxH):

180x103x37 mm• Protection class IP 65• 5 m connecting cable

Options:• Additional illuminated pushbutton and

selector switch for special functions• Connecting cable length: 10 / 15 / 20 m• Mounting base• Wall fastening• Swivelable mounting

The control unit, type 744, is used to control all Wagner electric magnets and electropermanent magnets in connection with the pole-reversal control units. They are available both with and without 6, 8 or 16-step holding force switch.Depending on the version, the control units are used with clamping magnets, holding magnets and lifting magnets.

Operating elements:

Control unit

Pole reversal Selector switch clamping forceClamp

When actuating the button, pole reversal is started to demagnetize the workpiece. As long as the polarity reversal process is ongoing, the button glows green. As soon as the display has gone off, the workpiece can be removed from the magnet.

Pre-selection of the holding force via coding switch. The switch can be supplied in 6, 8 or 16 levels (largest number for holding force level = 100% holding force).

When actuating the button, the workpiece is clamped and can be machined. As long as the magnet is switched on, the button glows green. The holding force of the magnet corresponds to the holding force level selected with the selector switch.

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Mounting base Wall fastening Swivelable mounting

To control clamping and holding magnets• 1 illuminated pushbutton for “Clamping the magnet“• 1 illuminated pushbutton for “Magnet reversal“• 1 coding switch with 16 steps for regulating the holding force• Indicator lamp for indicating error and warning messages• Housing dimensions (LxWxH in mm): 180x103x37• For electronic pole-reversal control unit• Aluminum housing with protection class IP 65

Our control unit 744 can be expanded in a modular manner

Fastening

Design examples:

To control loading lifting magnets• 1 illuminated pushbutton for “Clamping the magnet“• 1 illuminated pushbutton for “Clamping with reduced holding force“ (< 100 %)• 1 illuminated pushbutton for “Magnet reversal“ (double actuation EN13155)• 1 coding switch with 6 steps for regulating the holding force• Indicator lamp for indicating error and warning messages• Housing dimensions (LxWxH in mm): 180x103x37• For electronic pole-reversal control unit• Aluminum housing with protection class IP65

The type 754 pole-reversal control units are compact and very versatile control units usable for magnets of all kinds.

By reversing the polarity, magnetism in magnets and in the workpiece is elimina-ted and demagnetised parts can then easily be removed from the magnets.

Within their respectively defi ned power

range, they can be confi gured and used by setting suitable parameters for practically all types of magnets. Applying a modern digital signal processor successfully facilitated the transfer from conventional voltage control to very precise current control. The current control stands out for the switching dynamics stretching new physical limits and the resulting super-fast clamping and polarity reversal

procedures, the repeatability of which is also drastically improved thanks to the precision regulation. Of course, the scope also includes balancing out of any volta-ge fluctuations from the power supply source.

In devices for standard applications, the basic confi guration is implemented during the final inspection by the manufactu-rer. The basic confi guration determines the basic properties of the reverse pole control unit used to control magnets. A difference is established between magnet types (electro, electropermanent and neodymum magnets) and their individual nominal voltages. Another basic setting is the number of adhesive force levels selec-table via the adhesive force inputs.

Using the easily adapted calibration pro-cess, the device is adapted to the respec-tive magnets.

Current control is established in accordance with the confi gured adhesive force level and the nominal voltage.

There are 15 different program cycles available to demagnetise electro and electropermanent magnets respectively.

For special applications, the reverse pole control unit can be additionally confi gu-red or aligned via an optionally available monitoring program.

Electronic Pole Reversal Control Unit

For manual control of the pole-reversal control unit, different control units of type 744 are available. They are equipped with a coding switch to adjust the holding force and illuminated keys to clamp and unclamp the magnet. Keys and coding switch are also available as installation components.

Accessories:Control unit

With the additional “USG Monitor“ software, the configuration options for the pole-reversal control unit are extended considerable. The following options are available, for example:• selecting the 6-step, 8-step, and 16-step holding force curve and changing the freely-programmable holding force curve• changing the pole reversal programs• activating special options

Monitor program

Connection values for various output voltages:

For compliance with the EMC directives the use of a line reactor is necessary! For line lengths over 20 m between pole reversal control unit and magnet it is necessary to use an output choke.

Short-circuit behaviour:The reverse pole control unit is short-circuit-proof. In the event of a short circuit, it is internally disconnected within 10µsec.

Program selectionUse the coding switch on the front panel to select up to 16 pole reversal programs.

Technical data:• Mains voltage: 3 x 400 V AC (+/-10%)• Mains frequency: 50 / 60 Hz• Protection system: IP 20• Operating mode: Continuous operation• perm.temperature range: 0°C to 40°C• EMC: EN 61000-6-2 / EN 61000-6-4• For the connection of the magnet use a

shielded cable• Available clamping force curves: 6, 8 or

16 steps.• Installation height: 1000 mNN

When operating at great heights, the output power is limited.

Input signals:• Clamping (SPA IN)• Pole reversal (UMP IN)• switch off without demagnetizing

process (OFF IN)• acknowledge fault message (QUIT IN)• 4 inputs for selecting the clamping

force levels• 4 inputs as special options• RS 232 interface for PC communication

Output signals:• Magnet clamped (SPA OUT)• Pole reversal magnet (UMP OUT)• Fault (Error or O.K.)• All output signals are available as

potential-free contacts and 24V signals.

Type nom. output voltage[V DC]

nom. output current[A DC]

Dimensions WxHxD[mm]

Weight

[kg]

Use for

754-EL360/16 360 16 217x330x275 11,6 Electro magnets (continuous operation)



754-EP360/16 360 16 187x330x275 9,5 Elektro-permanent magnets (pulsed operation)









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The type 755 pole-reversal control units are compact and very versatile control units usable for magnets of all kinds.

By reversing the polarity, magnetism in magnets and in the workpiece is elimina-ted and demagnetised parts can then easily be removed from the magnets.

Within their respectively defi ned power

range, they can be confi gured and used by setting suitable parameters for practically all types of magnets. Applying a modern digital signal processor successfully facilitated the transfer from conventional voltage control to very precise current control. The current control stands out for the switching dynamics stretching new physical limits and the resulting super-fast clamping and polarity reversal

procedures, the repeatability of which is also drastically improved thanks to the precision regulation. Of course, the scope also includes balancing out of any volta-ge fluctuations from the power supply source.

In devices for standard applications, the basic confi guration is implemented during the final inspection by the manufactu-rer. The basic confi guration determines the basic properties of the reverse pole control unit used to control magnets. A difference is established between magnet types (electro, electropermanent and neodymum magnets) and their individual nominal voltages. Another basic setting is the number of adhesive force levels selec-table via the adhesive force inputs.

Using the easily adapted calibration pro-cess, the device is adapted to the respec-tive magnets.

Current control is established in accordance with the confi gured adhesive force level and the nominal voltage.

There are 15 different program cycles available to demagnetise electro and electropermanent magnets respectively.

For special applications, the reverse pole control unit can be additionally confi gu-red or aligned via an optionally available monitoring program.



Short-circuit behaviour:The reverse pole control unit is short-circuit-proof. In the event of a short circuit, it is internally disconnected within 10µsec.Program selection

Use the coding switch on the front panel to select up to 16 pole reversal programs.

Input signals:• Clamping (SPA IN)• Pole reversal (UMP IN)• switch off without demagnetizing

process (OFF/QUIT)• acknowledge fault message (OFF/QUIT)• 4 inputs for selecting the clamping

force levels• RS 232 interface for PC communication

Output signals:• Magnet clamped (SPA OUT)• Pole reversal magnet (UMP OUT)• Fault (Error or O.K.)• All output signals are available as

potential-free contacts and 24V signals.

For compliance with the EMC directives the use of a line reactor is necessary! For line lengths over 20 m between pole reversal control unit and magnet it is necessary to use an output choke.

Technical data:• Mains voltage: 230 V AC (+/-10%)• Mains frequency: 50 / 60 Hz• Protection system: IP 20• Operating mode: Continuous operation• perm.temperature range: 0°C to 40°C• EMC: EN 61000-6-2 / EN61000-6-4• For the connection of the magnet use a

shielded cable• Available clamping force curves: 6, 8 or

16 steps.• Installation height: 1000 mNN

When operating at great heights, the output power is limited.

Type nom. output voltage[V DC]

nom. output current[A DC]

DimensionsWxHxD[mm]

Weight

[kg]

Use for

755-EL24/7 24 6 142,5x202,5x136 2,8 Electro magnets (continuous operation)



755-EP210/10 210 EP 10 142,5x202,5x136 2,8 Elektro-permanent magnets (pulsed operation)



With the additional “USG Monitor“ software, the configuration options for the pole-reversal control unit are extended considerable. The following options are available, for example:• selecting the 6-step, 8-step, and 16-step holding force curve and changing the freely-programmable holding force curve• changing the pole reversal programs• activating special options

Monitor program

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The pole-reversal control unit, type 756, is a controllable power and voltage source to magnetize:

• Electromagnets (EL)

• Electro-permanent magnets (EP)

• Electro-permanent magnets with neodymium system (Nd)

The unit is controlled using 24 V DC control inputs. The system statuses are displayed via three-line display, LED displays and photo-MOS relay.

The unit is supplied via 3-phase mains connection 50 / 60 Hz. The unit is suitable for nominal magnetic currents of at least 6 A.

The pole-reversal control unit is cha-racterized by the following features:

• Optional current or voltage controlled operation

• Pre-selection of up to 4 freely program-mable parameter sets for the magnet by optional control inputs

• very short switching times

• When switching off the magnet quickly, the energy released is fed back to the mains

• Very fi ne resolution of the holding force levels

• Exclusive use of PhotoMOS relays for the feedback signals (no bouncing, relays can connect smallest currents without showing high resistance)

• Confi guration via USB and monitor program (optional)

• Ground leakage protection

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Type Use for Magnet voltage[V DC]

max. nominal current magnet

[A DC]

DimensionsWxHxD[mm]

Weight

[kg]

756-EL110/16 Electromagnets (continuous current) 110 16 125x375x245 7,2



756-EL220/30 Electromagnets (continuous current)) 220 30 125x375x245 7,2

756-EP210/30 Electro-permanent magnets (pulsed operation) 210 30 125x375x245 7,2





Short-circuit behavior:The pole-reversal control unit is protected against destruction of the power semicon-ductors by internal fuses.

Program selection:Use switch S1 on the front plate to select up to 16 pole-reversal programs..

Input signals:• Clamp• Pole-reversal• Switch off without pole-reversal • Acknowledge fault message • 4 inputs for selecting the holding force levels• 4 extra inputs can be assigned optionally• USB interface for confi guration• 24 V DC, 2,5 mA

Output signals:• Magnet clamped• Reverse magnet polarity• Fault• PhotoMOS relay with common earth,

MINUS or PLUS switching• max. 24 V, max. 0,5 A• 6 optional outputs

Technical data:• Mains supply voltage:

3x400 V AC (+/- 10 %), PE• Mains frequency: 50 / 60 Hz• Protection class: IP 20• Operating mode: Continuous operation• perm. temperature range: 0 °C bis 40 °C• acc. to EMC and Low Voltage Directive• Holding force levels: up to 256 levels

(16 freely programmable, interpolated)• Installation height 1000 m MSL

In case the machine is operated at higher altitudes, the possible output will be reduced.



With the additional “USG Monitor“ software, the confi guration options for the pole-reversal control unit are extended considerable. The following options are available, for example:• selecting the 6-step, 8-step, and 16-step holding force curve and changing the freely-programmable holding force curve• changing the pole reversal programs• activating special options

Monitor program

The pole-reversal control unit 756 provides a nominal input of 22,17 kVA (3 x 400 V, 32 A). Depending on the application (type of magnet, nominal voltage and power consumption of the magnet connected), the unit can also be supplied with reduced voltage and / or reduced fusing.

To switch off electro-permanent magnets, or to reduce the residual magnetism for electromagnets, reversing of poles is necessary. Here a magnetic fi eld with changing polarities and decreasing intensity is generated.This process reduces the residual magnetism to a minimum. The pole-reversal control unit 756 controls the necessary currents / voltages using the magnet. The basic setting of the pole-reversal control unit is made at our works prior to dispatch. If required, the pole-reversal process can be changed by selecting another pole-reversal program. In addition, it is possible to change the pole-reversal programs using the optional monitor program.

756-.../... freely confi gurable version for up to 4 different magnet systems;

other magnet voltages available as special confi guration


The pole-reversal control unit, type 757, is a controllable power and voltage source to magnetize:

• Electromagnets

• Electro-permanent magnets

The unit is controlled using 24 V DC control inputs. The system statuses are displayed by means of 4 LED‘s.

The pole-reversal control unit is cha-racterized by the following features:

• developed for applications for generating safety extra-low voltage (SELV) or functio-nal extra-low voltage (PELV)

• high starting current up to 16 A for electromagnets; up to 25 A for electropermanent magnets with an extremely compact construction

• very short switching times

• optionally current-regulated or voltage regulated operation

• Pre-selection of up to 4 freely program-mable parameter sets for the magnet by optional control inputs

• Very fi ne resolution of the holding force levels

• the digital outputs can connect currents up to 1.5 A totally

• thanks to the small construction, the device is suitable for fi tting on a stan-dard mounting rail in a switch cabinet of vertical construction

• Confi guration via USB and monitor program (optional)

To switch off electro-permanent magnets, or to reduce the residual magnetism for electromagnets, reversing of poles is necessary. Here a magnetic fi eld with changing polarities and decreasing intensity is generated.This process reduces the residual magnetism to a minimum. The pole-reversal control unit 757 controls the necessary currents / vol-tages using the magnet. A basic setting of the electrical rated values is carried out when the pole-reversal control unit 757 is ship-ped. If required, the pole-reversal process can be changed by selecting another pole-reversal program. In addition, it is possible to change the pole-reversal programs using the optional monitor program.

Technical data:

• Connection is made to a suitable (SELV/PELV) AC / DC power supply (for example, power supply Puls CPS20.481 or CP10.481)

• Acc. to EMC and Low Voltage Directive

• Input voltage: 26 V DC to 56 V DC

• Output voltage: up to 50 V DC (depending on the input voltage)

• Output current: electromagnets max. 16 A electro-permanent magnets max. 25 A (16 A per conductor)

• Effi ciency: approx. 98 %

• S.C. behavior: has an overcurrent cutoff and short-circuit protection

• Signal inputs: 12 inputs 24 V DC 2 mA per input

• Signal outputs: 5 outputs high side switch 24 V, max. 1.5 A (in total for all 5 outputs)

• Internal supply: 24 V, max. 1,5 A

• Pole-reversal programs: 16, freely programmable

• Holding force levels: up to 256 levels (16 freely programmable, interpolated)

• Interface: USB

• Protection class: IP 20 (switch cabinet integration)

• Dimensions (WxHxD): 22,5 mm x 126 mm x 102,5 mm

• Weight: 160 g

• Ambient temperature: permissible in operation 0 °C to 40 °C permissible during storage and transport -20 °C to 70 °C

• Atm. humidity: max. 90 %, condensation not permitted

• Power loss: max. 10 W

• Max. installation height: 1000 m MSL (In case the machine is operated at higher altitudes, the possible output will be reduced)

Accessories:


Control unit

With the additional “USG Monitor“ software, the confi guration options for the pole-reversal control unit are extended considerable. The following options are available, for example:• selecting the 6-step, 8-step, and 16-step holding force curve and changing the freely-programmable holding force curve• changing the pole reversal programs• activating special options

Monitor program

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Permanent Lifting Magnet

Options:• Different suspension bracket

(also special designs)

• Pole shoes (prism-shaped or special designs)

• Transport holes at rear side

Permanent Lifting Magnets of type 0519 are particularly suitable for the transport of flat steel, round steel and other profile steel products. These magnets are effective aids for material disposition, mechanical manufacturing, and for assembly works. Due to the installed permanent magnetic system, these magnets can be used without electric control and therefore without complex wiring.

In addition, this permanent magnetic design provided magnetic force at any time. The ball-bearing magnet system can be easily switched on/off using the control lever. If the magnet is switched on this status is secured by a locking system.

The magnetic force depends on the:• surface quality (air gap)• material composition• part thickness According to EN13155, the lifting capacity specifi cations include safety factor 3 rela-ted to the measured pull-off strength.

Technical data:• Lifting capacity [daN]:

300, 500, 1000, 2000 (depending on size of magnet)

The low dead weight and the very compact design provide further benefi ts when designing crane systems.

Documents

Transport with MagnetsLifting capacity of load Lifting Magnets The air gap between magnet pole and workpiece surface, as well as shape, surface quality and type of material of the