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ß Hommel Hercules
Permanent-Magnet Chucks
and Chuck Blocks
For quick and reliable clamping of ferrous workpieces on grinding, milling, and planing machines. Switches on and off by means
of lever. With transverse pole spacing. The holding force depends on the type of pole spacing and the percentage of the chucking
surface occupied, as well as on the bearing surface, thickness, and nature of the surface and material of the workpiece.
28003 Permanent-Magnetic Chucks
Type tools will not be magnetised. Note: 28003
With pole spacing, designed Holding power: Machining of the top plate
for grinding on flat grinding max. 80-100 N/cm2. without negatively influencing
machines. Scope of supply: Application the holding power is possible
With 2 stop strips. For the machining of workpieces up to a depth (in steel) of 15 mm
The clamping systems can thinner than 5 mm, or with a (non-ferrous metals up to a
be used with electrospark diameter of less than 15 mm, depth of 6 mm).
machines. Flux of lines of or of square workpieces with a Clamping of the chucks on the
force: approx. 8 mm above diameter of less than 15 mm. machining table by means of
the pole plate, therefore the clamping claws.
A B C D E F G Pole spacing Weight 28003 …
mm mm mm mm mm mm mm steel/non-ferrous metals mm kg
150 100 165 97 15 65 23 6 / 1,5 + 2 / 1,5 7 102
200 100 213 97 15 65 23 6 / 1,5 + 2 / 1,5 9 103
255 130 265 127 15 65 23 6/5 13 106
250 150 258 147 15 65 23 6/5 15 110
300 150 308 147 15 65 23 6/5 18 111
400 150 410 147 15 65 23 6/5 23 113
400 200 413 197 15 72 23 6/5 32 116
28006 Permanent-Magnetic Chucks
Type Holding power: Note: 28006
With pole spacing, higher max. 120 N/cm2. Machining of the top plate with-
magnetic force, for heavy-duty Application out negatively influencing the
machining. Scope of supply: For milling, planing, drilling, holding power is possible up to
With 2 stop strips. grinding, eroding etc. a depth (in steel) of 15 mm (non-
Flux of lines of force: approx. ferrous metals up to a depth of
10 mm above the pole plate, 6 mm). Clamping of the chucks
therefore the tools will not be on the machining table by
magnetised. means of clamping claws.
A B C D E F G Pole spacing Weight 28006 …
mm mm mm mm mm mm mm steel/non-ferrous metals mm kg
250 150 260 145 20 93 29 8/5 20 201
300 150 310 145 20 93 29 8/5 24 202
300 200 295 195 20 93 29 8/5 29 207
400 200 395 195 20 93 29 8/5 39 208
450 250 445 245 20 93 29 8/5 57 214
28007 Permanent-Magnetic Chucks
Type Application The magnetic field in the insert 28007
High-energy magnetic system The high-energy magnetic sys- is very weak, therefore the
Neodym (NdFeB) with very tem and the very small pole remaining magnetism in the
small pole spacing. Lever re- spacing allow for a wide range workpiece and the tool is of
movable. of applications, especially no importance.
Holding power: max. 70 N/cm2. clamping of very thin and small Note:
Scope of supply: workpieces. The very small The clamping systems can
With 2 stop strips. height (40 mm) increases the be used with electrospark
range of applications. machines.
A B C E F Pole spacing Weight 28007 ...
mm mm mm mm mm steel/non-ferrous metals mm kg
200 100 215 10 40 1,5 / 0,8 7 102
250 150 265 10 40 1,5 / 0,8 13 105
300 150 315 10 40 1,5 / 0,8 15 106
400 150 415 10 40 1,5 / 0,8 20 108
ENG/OP
28.1
C l a m p i n g To o l s
28008 Sine Tables With Permanent-Magnetic Chucks
Type Application Note: 28008
Easy swivelling around longi- Especially suitable for ex- The table has to be fixated on
tudinal axis, designed for tremely accurate grinding of the main shaft in order to avoid
grinding. workpieces with non-parallel variations during grinding.
Slip gauges adjustable up to faces. The angles can be
45°, swivelling up to 90°. adjusted using slip gauges.
Angle accuracy +/- 10 sec. Scope of supply: With 2 stop
2 mm
A
150
mm
B
100
mm
C
118
mm
D
238
mm
strips and 1 sine table.
E
122
mm
F
70
mm
H
23
J Pole spacing Weight
mm steel/non-ferrous metals mm
15 6 / 1,5 + 2 / 1,5
kg
12
28008 ...
201
255 130 125 345 152 100 23 15 6 / 1,5 + 2 / 1,5 25 302
250 150 133 340 165 100 23 15 6 / 1,5 + 2 / 1,5 30 304
300 150 133 395 165 100 23 15 6 / 1,5 + 2 / 1,5 36 305
350 150 139 445 165 100 23 15 6 / 1,5 + 2 / 1,5 40 306
400 150 139 492 165 100 23 15 6 / 1,5 + 2 / 1,5 44 307
28010 Permanent-Magnetic Round Chucks
Type Note: power can infinitely variable 28010
With fine parallel pole spac- A through hole can be drilled be set from 0 to maximum.
ing, designed for grinding through the centre of all round
even small and thin work- chucks (D, see table). Further-
pieces. Grooves make it easi- more, boreholes etc. (steel 15
er to position the workpieces. mm/non-ferrous metals 6 mm)
Holding power: can be drilled into the top plate
max. 80 N/cm2. without negative influence on
the holding power. Holding
A B C D F G H Thread Pole spacing Weight 28010 ...
mm mm mm mm mm mm mm steel/non-ferrous metals mm kg
130 62 90 15 2,5 120 7 4xM6 4 / 1,5 + 2 / 1,5 5 102
160 75 125 20 3,0 142 6 4xM8 6 / 1,5 + 2 / 1,5 8 103
200 80 150 20 4,5 182 6 4xM8 6 / 1,5 + 2 / 1,5 13 104
250 80 200 20 4,5 232 6 4xM8 6 / 1,5 + 2 / 1,5 20 105
28012 Permanent-Magnetic Round Chucks
Type Note: 28012
High-energy magnetic system Machining of the top plate with-
Neodym (NdFeB). out negatively influencing the
With radial pole spacing. holding power is possible up to
Holding power: a depth of 7 mm.
max. 100 N/cm2. Through holes in the round
Application chucks available on request.
For grinding machines.
A B C D E F G Thread No. of Weight 28012 ...
mm mm mm mm mm mm mm poles kg
150 68 20 50 80 120 5 4xM6 10 7 101
200 68 25 60 110 180 5 4xM6 12 13 102
250 68 30 60 140 220 5 4xM6 16 20 103
300 68 30 80 180 260 5 4xM8 16 30 104
28042 Laminated Chuck Blocks and Plates
Type This allows for clamping of 28042 201 28042 201
Brazed silver. Laminated workpieces of all shapes. Laminated Chuck Blocks
chuck blocks and plates are Note: With Vee-notch (90°) (pair).
not magnetic, but excellent The laminated chuck plates
conductors. The plates can be come with pole spacing of 28042 202-203
machined from all sides. 4 mm (stell 3 mm/non-ferrous Laminated Chuck Plates
metals 1 mm). With pole spacing (piece). 28042 202 - 203
Length x Width x Height 28042 …
mm
100 x 80 x 40 201
150 x 75 x 25 202
250 x 75 x 25 203
28.2 ENG/OP
ß Hommel Hercules
28048 Plate Demagnetizers
Type Application Note: 28048
With indicating lamp, on-off- No-hassle demagnetization of Cat.-no. 28048 103 can be
switch and plug connection. workpieces. used without interruption
Rating: AC 230 Volt, 50 Hz. (100 % ED).
Length x Width x Height Power 28048 …
mm VA
165 x 120 x 115 286 101
175 x 220 x 120 660 102
210 x 155 x 110 45 103
28050 Manual Demagnetizers
28050
Type Application
With indicating lamp, on-off- No-hassle demagnetization of
switch and plug connection. workpieces.
Rating: AC 230 Volt,
50 Hz.
Length x Width x Height Power 28050 …
mm VA
120 x 105 x 180 1330 101
28052 Tunnel Demagnetizers
Type Application 28052
With indicating lamp, on-off- Suitable for runs of work-
switch and plug connection. pieces with remaining
Rating: AC 230/400 Volt, magnetism.
50 Hz.
A B C E F Power 28052 ...
mm mm mm mm mm VA
200 100 200 323 166 794 101
200 100 200 415 240 2066 102
=Permanent/Electromagnetic Chucks
A new generation of magnetic chucks that offers conspiciuous advantages over conventional electromagnetic
and permanent-magnet chucks:
gretaer precision • no heat generation
optimum safety • due to remote control of magnet
great efficiency • a short power surge starts the clamping,
which is then kept up without power until switched off
direct connection to machines • due to pulse control
high reliability • in the event of power failure,
the activated chuck retains its full holding power.
The holding force depends on the type of the pole spacing and the percentage
of the chucking surface occupied, as well as on the bearing surface,
thickness, and nature of the surface and material of the workpiece.
A complete chucking unit consists of:
Permanent/Electromagnetic Chucks
• Pulse control
• Control unit
Please send us your enquiry!
ENG/OP
28.3
C l a m p i n g To o l s
28100 Clamping Strips
Type graphite, plastics or glass. Note: 28100
In pairs, for clamping non- These clamping strips are 1) Clamping rail,
magnetizing materials. In made of magnetizing metal 2) Workpiece
many cases workpieces can- and have flexible teeth on 3) Clamping rail,
not be magnetized, making it their inside edges. The work- 4) Magnet.
very difficult to attach them to piece is fixed between the
magnetic tables. Special con- centre notches of two clamp-
2 struction are always required
in order to allow magnetic
clamping of workpieces made
of aluminium, copper, brass,
ing strips on the magnetic
chuck surface, and when the
magnet is switched on is
clamped firmly in place.
2)
1) 3)
4)
Clamping strips 28100 …
L x W x H mm
150 x 40 x 1,0 101
150 x 43 x 2,8 103
250 x 52 x 3,7 104
28.4 ENG/OP
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