Clamping with Magnet Chucks · provided with a central through-hole or center hole. The permanent...

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ClampingChucks

Clamping with Magnet Chucks

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]

Dimensions and technical data:

Permanent-Magnet-Clamping-Chuck

Permanent-Magnet-Clamping-ChuckType 0121with radial pole spacing

Chucks with radial pole spacing are best suited to centrally clamping workpieces, such as saw blades, piston rings, ball bearings and similar. Chucks can also be provided with a central through-hole or center hole.

The permanent magnet clamping chuck can be switched mechanically. The most recently developed magnetic materials and a stable structure guarantee the highest level of holding force, and high level pre-cision on the pole plate surface.

It is switched on and off using stable shift levers. It requires only a low switching force compared to the high magnetic performance.

The magnet system requires no main-tenance. If the surface of the pole plate becomes uneven due to prolonged use, you must refi nish it through precise reworking. This maintains the full holding force and plane precision.

Type pNo. of pole pairs [mm]

a

[mm]

b

[mm]

c

[mm]

d

[mm]

e

[mm]

f Thread

g

[mm]

hnon-magn. zone [mm]

i

[mm]

D max.

[mm]

Weight app.[kg]

0121-15-4 4 150 64 90 3 120 3 x M10 12 20 117 24 9

0121-20-6 6 200 69 110 3 140 4 x M10 14 28 167 30 16

0121-25-6 6 250 69 140 3 170 4 x M12 14 30 217 40 23

0121-30-8 8 300 69 160 3 190 4 x M12 14 40 267 50 36

0121-35-8 8 350 69 210 4 240 6 x M12 14 40 303 50 47

0121-40-8 8 400 69 210 4 240 6 x M12 14 40 354 50 59

0120

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Permanent-Magnet-Clamping-ChuckType 0126Nwith narrow parallel pole spacing

These permanent magnet clamping chuck are particularly suited for grinding on cylindrical tables and cylindrical grinding machines. The 2.5mm narrow pole spacing is optimal for small and thin parts. The robust and stable setup enables high precision repeatability. A very low overall height is achieved by the use of high performance Neodymium magnets. The pole spacing of 2.5 mm consists of 2 mm wide steel poles and 0.5 mm brass elements.

Permanent magnet clamping devices can be switched mechanically. The most recently developed magnetic materials and a stable structure guarantee the highest level of holding force, and high level precision on the pole plate surface.

It is switched on and off using stable shift levers. It requires only a low switching force compared to the high magnetic performance.

The magnet system requires no main-tenance. If the surface of the pole plate becomes uneven due to prolonged use, you must refi nish it through precise reworking. This maintains the full holding force and plane precision.


Type pPole space [mm]

a [mm]

b [mm]

c [mm]

d [mm]

e [mm]

f Thread

g [mm]

Weight[kg]

0126N-15-2.5 2,5 150 44 90 3 120 3 x M10 14 5,5

0126N-18-2.5 2,5 180 44 90 3 120 3 x M10 14 8

0126N-20-2.5 2,5 200 44 110 3 140 4 x M10 14 10

0126N-22-2.5 2,5 220 44 120 3 150 4 x M10 14 12

0126N-25-2.5 2,5 250 44 140 3 170 4 x M12 14 15

0126N-30-2.5 2,5 300 44 160 3 190 4 x M12 14 23

Design:• Protection class: IP 65• Magnet operating time: 100 % (exclu-

ding electrical connection)

Structure:

Electro magnet clamping chucks primarily consists of three components: A solid steel lower section, a copper coil and a pole plate. The coil is moulded within the lower section, which means it is securely protected against vibrations and the ingress of moisture.One key quality feature of our clamping chucks is the optimal alignment between the electrical power consumption and the magnetic force that can be generated.While practically applied, the pole plate is subject to wear and tear. Accordingly, it is designed to facilitate multiple reworking before the processing limits are reached. The pole plates can be replaced without any problems, which extends the service life of the overall chuck accordingly.The pole plate can be individually custo-mised to meet your requirements at any time. This may be relevant for example with additional tapped holes, T-grooves, profi le, etc.

Series 121with radial pole spacing

Arranging the poles in a radial shape is particularly advantageous if wishing to centrically clamp individual, annular or round workpieces.(e.g. circular grinding, turning, ...)With the shape, you can use pole shoes to release the pole pitch of your workpiece for further processing.

Series 123with ring pole spacing

The ring pole spacing is designed to clamp even workpieces, which are not centrally aligned. This chuck is thus particularly suitable for mass distribution with smaller workpieces.(e.g. fl at grinding on rotary table machines).

Series 125with sinusoidal pole spacing

This specifi c type of pole spacing provides for a distribution of north and south poles over the entire clamping surface, in both longitudinal and transverse directions, which often allows you to boost adhesion signifi cantly compared to other forms of pole space. This is the only chuck, with which you clamp right up to the middle.

Additional pole shoesPole shoes improve the positioning of your workpiece and in so doing, enhance the function of the magnetic clamping chuck. Release allows the workpiece to be processed in either the outside or inside diameter without a problem.

Magnetic technology:Pole spacingThe arrangement of the magnetic pole on the clamping surface is known as the pole pitch. The optimal pole pitch for you de-pends on the respective usage case.

Pole distanceThe centre-to-centre spacing from two neighbouring unequal magnetic poles is known as the pole distance. Refer to the following guideline to select the suitable pole distance: Workpiece thickness x 2=optimal pole distance

Electro-Magnet-Clamping-Chucks

Series 121

Series 125

Type p Number of pole pairs

a [mm]

b [mm]

c [mm]

d [mm]

e [mm]

f Thread

g [mm]

h unmagneti-sed Zone [mm]

i [mm]

Output [Watt]

Weight [kg]

121-10 6 100 80 60 3 80 3xM8 12 16 82 16 4

121-15 6 150 80 90 3 120 3xM10 14 16 128 30 10

121-20 6 200 90 110 3 140 3xM10 14 22 178 48 20

121-30 8 300 90 160 3 190 4xM12 16 46 272 90 45

121-40 12 400 90 210 4 250 6xM12 16 70 362 150 79

121-50 12 500 90 280 4 320 6xM12 16 70 462 190 124

121-60 12 600 100 350 4 390 6xM16 18 70 564 265 198

121-70 16 700 100 400 4 450 6xM16 18 92 662 350 269

121-80 16 800 100 450 4 500 6xM16 18 92 762 440 352

121-90 16 900 100 500 4 560 6xM16 18 92 866 545 445

121-100 16 1000 125 550 4 620 6xM16 18 92 954 660 687

121-120 16 1200 125 Rear side by agreement 22 200 1154 960 989



Other dimensions are available on request (up to a max. diameter of 3000 mm)

Other dimensions and pole space are available on request.

Type p Pole space [mm]

a [mm]

b [mm]

c [mm]

d [mm]

e [mm]

f Thread

g [mm]

Output [Watt]

Weight [kg]

125-30 11-14-18 300 95 160 3 190 4xM12 16 80 47

125-40 11-14-18 400 95 210 4 250 6xM12 16 130 84

125-50 11-14-18 500 95 280 4 320 6xM12 16 190 131

125-60 11-14-18 600 100 350 4 390 6xM16 18 265 198

125-70 11-14-18 700 100 400 4 450 6xM16 18 350 269

125-80 14-18-25 800 100 450 4 500 6xM16 18 440 352

125-90 14-18-25 900 100 500 4 560 6xM16 18 545 445

125-100 14-18-25 1000 100 550 4 620 6xM16 18 660 550

125-110 14-18-25 1100 100 Rear side by agreement 22 780 665




Type p Pole space [mm]

a [mm]

b [mm]

c [mm]

d [mm]

e [mm]

f Thread

g [mm]

h unmagneti-sed Zone [mm]

i[mm]

Output [Watt]

Weight [kg]

123-10 4,5 100 85 60 3 80 3xM8 8 28 76 16 4

123-12 4,5 120 80 70 3 90 3xM8 9 25 97 22 6

123-15 4,5 150 80 90 3 120 3xM10 9 30 120 30 9

123-20 4,5 200 90 110 3 140 4xM10 12 40 174 48 18

123-30 4,5 300 90 160 3 190 4xM12 12 55 268 90 42

123-40 11 400 90 210 4 250 6xM12 15 63 363 150 92

123-50 11 500 90 280 4 320 6xM12 16 93 465 190 144

123-60 11 600 100 350 4 390 6xM16 18 59 563 264 208

123-70 11 700 100 400 4 450 6xM16 18 93 663 350 283

123-80 16 800 100 450 4 500 6xM16 18 120 760 440 369

123-90 16 900 100 500 4 560 8xM16 18 120 854 545 467

123-100 16 1000 100 550 4 650 8xM16 18 120 952 660 577







Series 123

Other pole space and dimensions are (up to a max. diameter 3000 mm) available on request.

Electrical connection via:Electronic pole-reversal control units

Example order:Please determine our exact type designation in accordance with the following scheme:

121 - 10 - 6 : 24 Tension Pole space or number of pole pairs Diameter in cm Series

These devices, designed especially for controlling clamping magnets, function to facilitate the power supply and simultaneously as demagnetisation devices. A microprocessor controls and monitors all functions and offers optimal switching comfort with numerous control and monitoring functions. The adhesive

force is adjustable in up to 16 stages. In addition, these pole-reversal control units also allow additional configuration of parameters and optimised settings. All device types offer particularly impressive shifting dynamics.

Default values:Tension 24 V DC or 110 V DCRelative duty cycle 100 %(other values on request)

Type 763 Separate slip-ringsSlip-rings are used in combination with carbon brush holders to convey power for rota-ting electro and electro permanent magnet clamping chucks.The type 763 slip-ring is used for separate installation onto the machine hollow spindle. Included in delivery is a slip-ring with a 10 mm bore hole. This location borehole can be subsequently adapted in accordance with the machine spindle, and taking into con-sideration the maximum dimensions (d). It is important to ensure non-touchable and water-protected covering is used to cover all live parts. The protective earth should be carried along.

Type 773 Double carbon brush holderThe carbon brush holders shown are used to transmit power to the slip-ring. They are supplied in three sizes, including mounting bolts.

Type a

[mm]

b

[mm]

c

[mm]

d

[mm]

e

[mm]

f

[mm]

Weight ca.

[kg]

up to a max. [A]

Applicable carbon brush holder

763-2-3 S-1 78 86 72 10-40 15 60 1,3 20 773-2-3

763-3-3 S-1 103 86 95 10-50 15 60 3,0 32 773-3-3

763-4-3 S-1 123 96 115 10-70 20 60 4,0 64 773-4-3

763-4-5 S-1 123 136 115 10-70 20 100 5,0 64 773-4-5

763-4-7 S-1 123 176 115 10-70 20 140 6,0 64 773-4-7

Type a[mm]

b[mm]

c[mm]

d[mm]

up to a max. [A]

Number of contacts

Weight ca. [kg]

773-2-3 60 141 10 17 20 3 0,3

773-3-3 78 162 12 23 32 3 0,4

773-4-3 94 162 12 26 64 3 0,5

773-4-5 94 213 12 26 64 5 0,8

773-4-7 94 254 12 26 64 7 1,1

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Design:• Protection class IP 67 (except electrical

connection)• Magnet operating time: 100 %

Holding force control:If necessary, the adhesive force can be controlled via pole reversal control unit using a coding switch. This prevents deforming of the workpieces.

Versions:• T-slots in the pole plate for screwing on

pole shoes or stops• Threaded holes in the pole plate for

fastening pole strips or top plates• Centrical locating hole in the pole sur-

face for centering fl anges• Pluggable socket on the outer surface• Power transmission via fl at or fl anged

slip rings

Electro-Permanent-Magnet-Clamping-Chuck

The pole shoes can be shifted in the T-slots and thus adapted to the existing workpiece diameter.

Electrical connection via:Electronic pole-reversal control units.These devices, designed especially for controlling clamping magnets, function to facilitate the power supply and simultaneously as demagnetisation devices. A microprocessor controls and monitors all functions and offers optimal switching comfort with numerous control and monitoring functions. The adhesive force is adjustable in up to 16 stages. In addition, these pole-reversal control units also allow additional confi guration of parameters and optimised settings. All device types offer particularly impressive shifting dynamics.

Electro-Permanent-Magnet-Clamping-Chucks, Type 1210, with radial pole spacing if several workpieces are clamped asymmetrically, they must cover at least two poles.

Electro permanent magnet clamping chucks are mainly used on turntables and circular grinding machines. Careful dimensioning of the magnetic system and practical pole spacings ensure clamping of the workpieces at even holding force.

If several workpieces are clamped asymmetrically, they must cover at least two poles.

By energy-conscious magnetizing of the clamping chuck through a defi nite power pulse highest level of precision is achieved. Then the magnet is disconnected from power and therefore particularly suited for machining tasks within the µm-range.

The big advantage of radial pole spacing is that the workpieces can be separated using pole shoes. This separation is used as run-out range for the grinding wheel in the inside and outside area. Thus the work-piece can be machined on all three sides with optimal form and position tolerances using only one chucking.

1210

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Other dimensions and number of pole pairs are available upon request* 210 V D.C. variants are also available with 360 V D.C. nominal

Electro-Permanent-Magnet- Clamping-ChuckType 1210with radial pole spacing

Characteristics:Highest level of precision -Activated magnet remains cold.

Highest level of safety -Holding force even after power failure.

Energy-conscious -Power used only for short pulses.

Special Solutions:• magnet clamping chuck with separately

switchable clamping area• magnet clamping chuck in segment

design

Type pNo. of

pole pairs

a

[mm]

b

[mm]

c

[mm]

d

[mm]

e

[mm]

f Thread

g

[mm]


i

[mm]

Weight

[kg]

Connection valuePole-reversal

control unit [V/A]*

1210-20 6 200 100 110 3 140 4xM10 14 20 178 22 210/10

1210-30 8 300 100 160 3 190 4xM12 16 58 270 50 210/30

1210-40 8 400 110 210 4 250 6xM12 16 80 350 97 360/30

1210-50 8 500 110 280 4 320 6xM12 16 113 452 151 360/30

1210-60 8 600 120 350 4 390 6xM16 18 113 552 238 360/30

1210-70 8 700 127 400 4 450 6xM16 18 113 648 342 360/30

1210-80 12 800 132 450 4 500 6xM16 18 216 751 465 360/30

1210-90 12 900 137 500 4 560 8xM16 18 216 848 610 360/60

1210-100 12 1000 137 550 4 620 8xM16 18 216 944 753 360/60

1210-110 12 1100 147 Backside as agreed 300 1050 830 360/60



1210-140 16 1400 157 Backside as agreed 300 1350 1610 360/60x2








Holding force control:If necessary, the adhesive force can be con-trolled via pole reversal control unit using a coding switch. This prevents deforming of uneven workpieces.

Hybrid-Clamping-Chuck

The Hybrid-Clamping-Chuck, type 1210H a joint product of company Röhm and Wagner company, combines the best of the two companies. Consisting of 3 or 6 clamping chucks and one electro permanent magnet clamping chuck the device efficiently and flexibly complies with today´s requirements for quick and economic clamping devices.

Advantages:• individually adjustable thanks to the

modular design• Set-up times reduced by up to 80%

thanks to accurate clamping in seconds• machine down times reduced to a

minimum• 3-side machining for turned parts and

workpieces• 16 individually adjustable holding force

levels• uniform and distortion-free clamping

force• combined magnet and center chucks

clamping force possible• high process reliability for effi cient

series production• rapid return on investment• available in diameter sizes from 200 to

5000 mm



fastening pole strips or add-on pole plates• Pluggable socket on the outer surface• Power transmission via fl at or fl anged

slip rings• Mechanical centering function on the

outer surface or power-operated in the centre

Bearing rings and other easily deformable, ring shaped parts are safely centered and clamped in a matter of seconds. The magnetic holding force can easily be adjusted in 16 steps to prevent defor-mations of the part. The clampings can be removed after the centering to enable 3-side machining.



Other dimensions and number of pole pairs are available upon request* 210 V D.C. variants are also available with 360 V D.C. nominal voltage** Outer diameter of magnet chuck plus 60 mm with overlapping jaws

Type Diameter

[mm]

No. of pole pairs

[mm]

Overall height

[mm]

magnetic zone

[mm]

Weight

[kg]

Connection valuepole-reversal control unit

[V/A]*

1210H-20 200** 3 150 20 - 170 33 210/10

1210H-25 250** 3 150 20 - 220 51 210/30

1210H-30 300** 6 150 70 - 270 75 210/30

1210H-40 400** 6 150 70 - 360 132 360/30

1210H-50 500 6 120 220 - 440 165 360/30

1210H-60 600 9 120 220 - 540 240 360/30

1210H-70 700 9 120 220 - 640 324 360/30

1210H-80 800 9 135 220 - 740 475 360/30

1210H-90 900 9 135 220 - 840 594 360/60

1210H-100 1000 12 145 280 - 940 790 360/60

1210H-110 1100 12 145 280 - 1040 965 360/60

1210H-120 1200 12 170 300 - 1140 1345 360/60

1210H-130 1300 12 170 350 - 1240 1575 360/60x2

1210H-140 1400 12 170 350 - 1340 1825 360/60x2

1210H-150 1500 15 170 400 - 1440 2100 360/60x2

1210H-160 1600 15 170 400 - 1540 2390 360/60x2

1210H-180 1800 15 180 600 - 1740 3200 360/60x2

1210H-200 2000 15 180 600 - 1940 3950 360/60x2

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Hybrid-Clamping-ChuckType 1210H

The perfect combinationof magnetic andmechanic clamping forces



Holding force control:If necessary, the adhesive force can be con-trolled via pole reversal control unit using a coding switch. This prevents deforming of the workpieces.



fastening pole strips • Locating holes in the pole surface for

centering fl anges• Pluggable socket on the outer surface• Power transmission via fl at or fl anged

slip rings



The radial pole arrangement is suitable for separating work-pieces by using pole shoes. This separation is used as run-out range for the grinding wheel in the inside and outside area.Thus the workpiece can be machined on all three sides with optimal form and position tolerances using only on chucking

One special fi eld of application of this clamping system is the hard turning of ball bearing races. This process involves the bearing ring being clamped over pole shoes or directly onto the Electro-Permanent-Magnet-Clamping-Chuck. A corresponding form radius is provided as run-out range for the hard-turning tool.

Electro-Permanent-Magnet-Clamping-Chuck Type 1210V with radial pole pitch and increased adhesive force are particularly suited for centrical clamping of rings, fl anges, bearing housings and similar rotation-symmetric components

Wherever maximum adhesive forces are needed, e.g. to bridge air gaps in uneven workpieces, when applying pole extensions or for magnetically critical materials, this reinforced construction is the fi rst choice.

Electro permanent magnet clamping chucks are mainly used for circular grin-ding, turning and milling in processing centres.

Optimal accuracy is achieved by energy-aware magnetising of the clamping chuck via a precise electrical impulse. Then the

magnet is disconnected from power and therefore particularly suited for machining tasks within the µm-range.


Other dimensions and number of pole pairs are available upon request* 210 V D.C. variants are also available with 360 V D.C. nominal voltage.

1210

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Electro-Permanent-Magnet-Clamping-ChuckType 1210Vwith radial pole spacing and increased holding force




Special Solutions:• magnet clamping chuck with adjustable

pole shoes• magnet clamping chuck with different

pole strips

Type pNo. of

pole pairs

a

[mm]

b

[mm]

c

[mm]

d

[mm]

e

[mm]

f Thread

g

[mm]


i

[mm]

Weight

[kg]

Connection valuePole-reversal cont-

rol unit [V/A]*

1210V-20 6 200 110 110 3 140 4xM10 14 20 178 24 210/10

1210V-30 8 300 110 160 3 190 4xM12 16 58 270 54 210/30

1210V-40 8 400 110 210 4 250 6xM12 16 80 350 97 360/30

1210V-50 8 500 110 280 4 320 6xM12 16 113 452 151 360/30

1210V-60 8 600 120 350 4 390 6xM16 18 113 552 238 360/30

1210V-70 8 700 127 400 4 450 6xM16 18 113 648 342 360/30

1210V-80 12 800 132 450 4 500 6xM16 18 216 751 465 360/30

1210V-90 12 900 137 500 4 560 8xM16 18 216 848 610 360/60

1210V-100 12 1000 137 550 4 620 8xM16 18 216 944 753 360/60

1210V-110 12 1100 147 Backside as agreed 300 1040 978 360/60



1210V-140 16 1400 152 Backside as agreed 300 1344 1638 360/60x2










Electro-Permanent-Magnet-Clamping- Chuck Type 1230 with ring pole pitch are particularly suitable for eccentric clamping of mass-produced parts or also clamping thin workpieces, such as saw blades.

The use of temporary pole plates with different workpiece specifi c inserts is particularly suited for this type of pole spacing.

The center of the pole plate allows for the realization of centering aids, threaded holes and locating holes.

The object can be centered using the loca-ting hole in the center of the clamping surface.

The standard pole spacings of 9 and 18 mm ensure even holding forces over the complete clamping range. The brass pole gap ensures optimal heat dissipation, in particular if thin workpieces are used.

Electro permanent magnet clamping chucks are magnetized and demagnetized through power pulses from the pole reversal control unit.During the machining process any power supply is disconnected. This ensures no heat is generated by the integrated coil when the magnet is activated. This also prevents inaccuracies resulting from variations in temperature.In case of power failure the activated magnet clamping chuck maintains full holding force. The magnet clamping chuck provides all the preconditions for precision, operational safety and ease of use.

With its pluggable socket the magnet clam-ping chuck with clamped workpieces can be used variably on pallet changers.


Other dimensions and pole spacings are available upon request210 V D.C. variants are also available

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Electro-Permanent-Magnet-Clamping- ChuckType 1230with ring pole spacing




Type ppole space

[mm]

a

[mm]

b

[mm]

c

[mm]

d

[mm]

e

[mm]

f Thread

g

[mm]


i

[mm]

Weight

[kg]

Connection value Pole-reversal con-

trol unit [V/A]*

1230-30-9 9 300 100 160 3 190 4xM12 12 76 262 50 360/30

1230-30-18 18 300 100 160 3 190 4xM12 12 66 274 50 360/30

1230-40-9 9 400 100 210 4 250 6xM12 16 92 366 85 360/30

1230-40-18 18 400 100 210 4 250 6xM12 16 94 358 85 360/30

1230-50-9 9 500 100 280 4 320 6xM12 16 92 462 135 360/30

1230-50-18 18 500 100 280 4 320 6xM12 16 92 446 135 360/30

1230-60-9 9 600 100 350 4 390 6xM16 18 78 552 195 360/30

1230-60-18 18 600 100 350 4 390 6xM16 18 70 562 195 360/30

1230-70-9 9 700 100 400 4 450 6xM16 18 158 642 265 360/30

1230-70-18 18 700 100 400 4 450 6xM16 18 92 628 265 360/30

1230-80-9 9 800 100 450 4 500 6xM16 18 96 764 365 360/30

1230-80-18 18 800 100 450 4 500 6xM16 18 92 772 365 360/30

1230-90-9 9 900 100 500 4 560 8xM16 18 80 860 440 360/60

1230-90-18 18 900 100 500 4 560 8xM16 18 166 850 440 360/60

1230-100-9 9 1000 100 Backside as agreed 92 944 550 360/60

1230-100- 18 18 1000 100 Backside as agreed 92 952 550 360/60





1230-125-9 9 1250 125 Backside as agreed 96 1200 1070 360/60x2










Alternating north and south poles are arranged along the complete clamping range. Due to this design there is no non-magnetic zone in the center of the magnet clamping chuck. This ensures an uniform holding force over the complete clamping surface.

This pole spacing is particularly suited for clamping mass-produced parts or thin workpieces like saw blades.The object can be centered using the locating hole in the center of the clamping surface.

Depending on the workpiece used you can select pole spacings of 11, 14, 18 and 22 mm.The pole plate can be reworked until the wear limit is reached, then it has to be replaced.

Electro permanent magnet clamping chucks are magnetized and demagne-tized through power pulses. During the machining process any power supply is disconnected. This ensures that no heat is generated when the magnet is activated. This also prevents inaccuracies resulting from variations in temperature. The magnet clamping chuck provides all the preconditions for precision, operational safety and ease of use.

By default, power is fed via machine spindle with integrated slip ring and carbon brush holder.

With its optional plug-in unit on the outer surface the magnet clamping chuck can be used variably on pallet changers. Any changeover between different electro-permanent-magnet-clamping-chucks or mechanical clamping systems can be done very quickly and fl exibly.



Electro-Permanent-Magnet-Clamping-Chuck Type 1250 have a high adhesive force due to the pendular pole pitch.


Other dimensions and pole spacings are available upon request* 210 V D.C. variants are also available with 360 V D.C. nominal voltage.

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Electro-Permanent-Magnet-Clamping-ChuckType 1250with sinusoidal pole spacing




Special Solutions:• Removable pole plates with workpiece

dependent inserts• magnet clamping chuck with plug-in

unit on the outer surface

Type ppole space

[mm]

a

[mm]

b

[mm]

c

[mm]

d

[mm]

e

[mm]

f Thread

g

[mm]

Weight

[kg]

Connection valuePole-reversal control unit

[V/A]*

1250-30 11-14-18 300 90 160 3 190 4xM12 16 45 210/10

1250-40 11-14-18 400 90 210 4 250 6xM12 16 79 210/10

1250-50 11-14-18 500 90 280 4 320 6xM12 16 124 210/10

1250-60 11-14-18 600 100 350 4 390 6xM16 18 198 360/30

1250-70 11-14-18 700 100 400 4 450 6xM16 18 269 360/30

1250-80 14-18-25 800 100 450 4 500 6xM16 18 352 360/30

1250-90 14-18-25 900 110 500 4 560 6xM16 18 490 360/30

1250-100 14-18-25 1000 110 550 4 620 6xM16 18 605 360/30

1250-110 14-18-25 1100 110 Backside as agreed 732 360/30






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 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.

Electronic Pole Reversal Control Unit

Connection values for various output voltages:

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)

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

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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




Connection values for various output voltages:

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.


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

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 electro- permanent 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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Magnetic fi eld meter

Special features:

• The meter is compact, light and easy to operate.

• Strong magnetic forces within the range of 0 to 3000 mT can be measured.

• The high resolution measurement mode ensures precise measuring.

• The sensor can be replaced without complex calibration.

• The membrane keypad provides excellent dust protection.

• The automatic switch-off function prevents any unnecessary battery consumption.

• To allow several hours of use of the sensor, an external power source can be connected.

• Both digital and analog signals can be output. The digital output via USB allows further processing of the data on a PC.

The magnetic fi eld meter is a handy and practical device to measure static or dynamic magnetic fi elds.

Technical data:

• Measuring range: 0 bis 3000 mT

• Measuring accuracy: ± 5% of display value

• Minimal value: 0,01 mT

• External data output: Digital output (USB) and analog output

• Energy supply: Batteries or external power source

• Application temperature: 0 bis 40 °C

• Dimensions (LxWxH): Measuring unit 140x64x30 mm

• Weight: 250 g (including sensor and batteries)

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Date post:	14-Aug-2019
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