Three Phase Flat Motors
Three Phase Saw Arbor Motors
for sawing, milling, routing
of wood, plastics and metal
type of protection IP 54
Three phase flat motors with brake
type of protection IP 54
Three phase flat motors
type of protection IP 55
(possible on request)
CSA version
(possible on request)
B
Three-Phase Flat Motors
for sawing, drilling, routing of wood, plastics and machining of metal
type of protection IP 54
Mechanical design
Three-phase motor with squirrel cage rotor
Owing to their low profile the strong and
aesthetically designed flat motors greatly
reduce the cutting depth loss. The material
of the bearing shields and housing in the
individual type series are different and are
described separately in the following
performance tables.
The bearings of the shaft consist of sufficient dimensioned deep groove ball bearings. The drive end bearing is a fixed
bear-ing, the ventilator end one is an unfixed bearing. The bearings are to be regarded for normal installation conditions as
dust-proof. Because of their greasing for
lifetime the motor of series KN 50, KN 60
and KN 70 are free of maintenance and
greatly easy to operate.
On using these motors for cutting of plastics
and metal the bearings are especially
endangered by dust and chips. For these
operating conditions the bearings can be
provided additionally, on request, with
labyrinth seals on the both end shields.
This is already arranged as a regular
feature for the sizes KN / KC 70..., K 11...,
K 14..., K 16..., and K 20.
The connection of terminal box are normally situated on the right on viewing on
the shaft end, however, they can also be
installed, on special request, on the lefthand side. The entries for cables can be
rotated by 90° together with the terminal
box, if required.
Flat motors for stone working are listed
separately in section C.
Type of protection IP 55 on request.
Electrical design
The motors are designed according to
DIN EN 60034-1 / VDE 0530 part 1 rules.
High quality insulating material are used
for insulation. The impregnation is effected
according to the latest technology of vacuum processing. The thermal capacity is
conform to insulation class "F". On request
the motors can also be supplied with insulation for tropical conditions.
A power reduction of these motors will
result if those are installed at coolant
temperatures higher than 40°C (104°F) or
at heights exceeding 1,000 m (3,280 ft)
above main sea level.
All motors can be designed for different
voltages and frequencies. For those special applications it is recommended to
enquire, especially, if it is necessary to
meet connection regulations valid abroad.
Most types are available in CSA design
(file no. L.R. 16 865).
B
26
Depending on type the motors will develop
pull-out torques of approximately 250 to
350 % of the nominal torque. Therefore,
the motors provide temporary, strong overload capacity and are designed especially
for rough sawing works.
On short period utilisation of these power
peaks it is recommended to dimension the
protection fuses and the supply cables
according to the higher currents met in
these cases. Please inquiry in such cases.
Three-Phase Flat Motors
saw arbor motors
type of protection IP 54
with squirrel cage rotor
special flat housing in aluminium-die-cast
metal, bearing shields in grey cast iron
labyrinth seals on both ends
voltages: 400 V
special voltage on request
frequency: 50 Hz
output rating for insulation class "F" high
quality vacuum impregnation, high pull-out
torque and high overload capacity ambient
temperature ≤ 40°C (104°F), installation
height ≤ 1,000 m (3,280 ft) over main sea
level
with integrated electromechanical brake,
see page 33.
speed 3,000 rpm
type
continuous
rating S1
intermittend
rating S6 – 60%
intermittend
rating S6 – 40%
(kW) 400 V ca. A (kW) 400 V ca. A (kW) 400 V ca. A
KN
KN
KN
KN
KN
KN
KN
KN
KC
KC
KC
KC
KC
50.11–2
51.14–2
52.16–2
60.09–2
61.11–2
61.13–2
62.15–2
62.18–2
70.12–2
71.16–2
71.20–2
72.24–2
72.28–2
0.8
1.1
1.2
1.8
2.2
2.6
3.0
3.5
3.0
4.4
5.5
7.0
7.5
2.1
2.9
3.2
4.2
5.1
6.0
7.0
8.0
6.5
9.0
11.0
14.0
15.0
0.9
1.3
1.5
2.0
2.5
3.0
3.5
4.0
3.7
5.0
6.5
8.0
9.0
2.3
3.4
3.8
4.7
5.8
6.8
8.0
9.0
8.0
10.5
13.0
16.0
18.0
1.0
1.4
1.7
2.2
2.8
3.5
3.8
4.5
4.2
6.0
7.5
9.0
10.0
2.5
3.6
4.2
5.2
6.5
7.8
8.5
10.0
9.0
12.5
16.0
18.0
20.0
27
full load
speed S1
weight
saw blade drawing
flange
rpm
ca. kg
mm Ø
2,730
2,730
2,730
2,810
2,820
2,820
2,820
2,820
2,860
2,860
2,870
2,870
2,870
11.0
12.5
13.5
14.5
17.0
19.5
20.5
22.0
26.0
33.0
38.0
45.0
51.0
80
80
80
100
100
100
100
100
120
120
120
120
120
MS 3087
MS 3087
MS 3087
MS 640
MS 640
MS 640
MS 640
MS 640
MS 652
MS 652
MS 652
MS 652
MS 652
B
Three-Phase Flat Motors
saw arbor motors
type of protection IP 54
type: KN 50
drawing No. MS 3087
left/right
drawing without sawflanges
clamping width for saw blade 0..6 mm
terminal box right
type
a
e
k
KN 50
KN 51
KN 52
195
225
245
213
243
263
332
362
382
type: KN 60
drawing without sawflanges
and nut
drawing No. MS 640
left/right
deep
terminal box right
standard version without
machined surface and borings
for fastening protection hood
type
a
e
k
KN 60
KN 61
KN 62
190
220
270
210
240
290
313
343
393
type: KC 70
drawing without sawflanges
left/right
drawing No. MS 652
inside thread according
to order
terminal box right
with machined surface and borings
for fastening protection hood
(at additional cost)
standard version: left hand thread
B
type
a
e
k
KC 70
KC 71
KC 72
260
340
420
310
390
470
415
495
575
dimensions subject to change
28
Three-Phase Flat Motors
type of protection IP 54
with squirrel cage rotor
housing and bearing shields in grey cast
iron, for higher stresses in steel or steel
welded, with lugs for fastening protection
hood as models I respectively II,
concerning type K 160 and K 200 housing
and bearing shields steel welded
output rating for insulation class "F",
high quality vacuum impregnation, high
pull-out torque and high overload capacity.
The types below are also available with
integrated electromechanical brake,
see additional page 35.
voltages: 400 V
special voltage on request
frequency: 50 Hz
type
drawing
continuous
rating S1
intermittend
rating S6 - 60%
full load
speed
weight
saw blade
flange
(kW)
400 V ca. A
(kW)
400 V ca. A
rpm
ca. kg
mm Ø
6.6
9.2
11.0
15.0
17.5
22.0
30.0
37.0
45.0
45.0
54.0
65.0
65.0
80.0
100.0
120.0
13
18
22
30
33
41
55
67
80
80
93
112
108
133
165
196
8.0
11.0
13.0
18.0
20.0
25.0
37.0
45.0
55.0
55.0
65.0
75.0
70.0
90.0
120.0
140.0
16
22
26
35
37
46
67
78
96
94
112
127
116
148
197
228
2,820
2,820
2,820
2,900
2,900
2,925
2,925
2,925
2,940
2,940
2,940
2,950
2,950
2,950
2,950
2,950
56
69
79
91
106
168
177
195
240
335
360
450
610
625
750
840
160
160
160
160
180
200
200
200
200
300
300
300
special
special
special
special
full load
speed
weight
saw blade
flange
rpm
ca. kg
mm Ø
1,420
1,440
1,440
1,470
1,470
1,470
1,470
1,470
71
105
180
310
335
360
610
625
160
180
200
300
300
300
special
special
speed 3,000 rpm
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
80.19–2
81.26–2
82.31–2
83.37–2
91.31–2
111.31–2
111.31–2
112.38–2
113.50–2
140.32–2
140.38–2
141.50–2
160.50–2 D
160.50–2 D
162.60–2 D
200.50–2 D
type
MS 630 A
MS 630 A
MS 630 A
MS 630 A
MS 630 B
MS 630 C
MS 630 C
MS 630 C
MS 630 C
MS 630 D
MS 630 D
MS 630 D
MS 3503
MS 3503
MS 3503
MS 3621
drawing
continuous
rating S1
(kW)
400 V ca. A
intermittend
rating S6 - 60%
(kW)
400 V ca. A
speed 1,500 rpm
K
81.27–4
K
91.31–4
K 111.32–4
K 140.38–4
K 140.38–4
K 140.38–4
K 160.49–4 D
K 160.49–4 D
MS 630 A
MS 630 B
MS 630 C
MS 630 D
MS 630 D
MS 630 D
MS 3503
MS 3503
6.2
9.5
20.0
22.0
30.0
40.0
50.0
60.0
13.5
20.0
38.0
43.0
57.0
76.0
88.0
105.0
16.0
22.0
45.0
50.0
63.0
84.0
95.0
114.0
7.5
11.0
24.0
26.0
35.0
45.0
55.0
66.0
29
B
Three-Phase Flat Motors
type of protection IP 54
type: K 80
drawing without sawflanges
clamping width for saw blade 0..6 mm
drawing No. MS 630A
left/right
deep
type
terminal box right
with machined surface and borings
for fastening protection hood
(at additional cost)
standard version: left hand thread
K
K
K
K
80
81
82
83
a
e
k
380
460
510
570
412
492
542
602
530
610
660
720
type: K 91.31– 2
drawing without sawflanges
drawing No. MS 630B
deep
left/right
clamping width for saw blade 0..6 mm
with machined surface and borings
for fastening protection hood
(at additional cost)
terminal box right
type: K 110
drawing No. MS 630C
deep
left/right
clamping width for saw blade 0..6 mm
drawing without sawflanges
and nut
with machined surface and borings
for fastening protection hood
(at additional cost)
standard version: left hand thread
B
terminal box right
type
a
e
k
K 111
K 112
K 113
534
614
734
574
654
774
775
855
975
dimensions subject to change
30
Three-Phase Flat Motors
type of protection IP 54
type: K 140
drawing without sawflanges
clamping width for
saw blade 0..6
drawing No. MS 630D
left/right
deep
with machined surface and borings
for fastening protection hood
(at additional cost)
terminal box right
type
a
e
k
K 140
K 141
670
855
720
905
1003
1188
type: K 160 D
drawing No. MS 3503
left/right
deep
terminal box right
type
a
e
k
K 160 D
K 162 D
815
895
895
975
1266
1346
type: K 200.50–2 D
drawing No. MS 3621
deep
dimensions subject to change
standard version: left hand thread
31
B
Three-Phase Flat Motors With Brake
Mechanical design
Three-phase motor with squirrel cage rotor
Integrated electromechanical brake cooled
by the mounted ventilator of the motor
Switching on the motor the brake is also
supplied with current. Its strong
electromagnet lifts the brake plates and
releases the motor for running.
When switching off the motor the strong
springs existing in the brake give a high
brake pressure on the friction discs and
bring the motor to a standstill.
This is also valid in case of power failure
as a safety brake is used here.
Electrical design of the
motor
As described on page 26
Electrical design of the
brake
Connecting voltage: 230 V or 400 V onephase AC (alternating current). The electromagnet is designed for DC (direct current) and is fed by a rectifier which is positioned in the terminal box together with the
terminals of motor and brake.
One-phase alternating current is necessary for the feeding. Normally, this current
is to be tapped off parallel from the motor
terminal board in order to contain the
same circuit of motor and brake and therefore automatic interaction. When starting
the motor via Y/∆-connection the current
supply of the brake has to be guaranteed
also when switching protectively to avoid
a particular status without voltage.
If this is, however, not possible as the voltage of the motor deviates too much from
the rated voltage of the brake or if a variable voltage is used for speed regulation a
separate power supply is necessary for
the brake. In this case the user has to provide synchronous connection status
(motor/brake). Please ask for a connection
diagram.
Important note
When a motor with brake is used as a saw
arbor motor, the saw blade together with
the outside flange and nut would like to
run forward because of the rotative torque,
and the nut would be loosened from the
thread when braking the motor.
In this case the nut has to be secured
against unscrewing or a through key has
to be fitted which also secures the outside
saw blade flange against loosening. The
saw blade then has to indicate a bigger
boring diameter as the shaft diameter and
has to be positioned on a spacer or a corresponding flange surface.
Please consider that the brake is not suitable as a locking device for tool change
(saw blade change).
B
32
Three-Phase Flat Motors With Brake
type of protection IP 54
extremely flat housing in aluminium cast
iron, bearing shields in grey cast
motor version with labyrinth seals on both
sides
voltage: 400 V, special voltages on
request
frequency: 50 Hz
output rating for insulation class "F"
high quality vacuum impregnation, high
pull-out torque and high overload capacity
type
continuous
rating S1
(kW)
KN
KN
KN
KN
KN
KN
KN
KN
KC
KC
KC
KC
KC
50.11–2
51.14–2
52.16–2
60.09–2
61.11–2
61.13–2
62.15–2
62.18–2
70.12–2
71.16–2
71.20–2
72.24–2
72.28–2
Br
Br
Br
Br
Br
Br
Br
Br
Br
Br
Br
Br
Br
0,80
1,10
1,20
1,50
1,85
2,20
2,50
3,00
3,00
4,40
5,50
7,00
7,50
ambient temperature ≤ 40°C (104°F),
installation ≤ 1,000 m (3,280 ft) over main
sea level
with integrated electromechanical brake,
active automatically when switching off
current supply, up to 7200 rpm rated
speed (depending on type, please ask).
brake torque:
KN 5: 4 Nm
KN 6: 3 Nm
KC 7: 16 Nm
For the selection of the brake switching
frequency, tool, moments of inertia, speed,
etc. are to be considered!
intermittend
rating S6 – 60%
400 V ca. A
2,1
2,9
3,2
3,3
4,0
4,8
5,6
6,7
6,5
9,0
11,0
14,0
15,0
(kW)
0,90
1,30
1,50
1,80
2,20
2,60
3,00
3,50
3,70
5,00
6,50
8,00
9,00
full load
speed S1
400 V ca. A
2,3
3,4
3,8
4,0
4,7
5,5
6,5
7,6
8,0
10,5
13,0
16,0
18,0
33
weight
saw blade drawing
flange
rpm
ca. kg
mm Ø
2.730
2.730
2.730
2.810
2.820
2.820
2.820
2.820
2.860
2.860
2.870
2.870
2.870
12,5
14,0
15,0
15,5
18,0
20,5
21,5
23,0
32,0
39,0
44,0
51,0
57,0
80
80
80
100
100
100
100
100
120
120
120
120
120
MS 645
MS 645
MS 645
MS 646
MS 646
MS 646
MS 646
MS 646
MS 654-2
MS 654-2
MS 654-2
MS 654-2
MS 654-2
B
Three-Phase Flat Motors With Brake
type of protection IP 54
type: KN 50 Br
drawing No. MS 645
left/right
drawing without sawflanges
clamping width for saw blade 0..6 mm
deep
tool seat Ø30h6
type
a
e
k
KN 50 Br
KN 51 Br
KN 52 Br
195
225
245
213
243
263
390
420
440
terminal box right
type: KN 60 Br
drawing without sawflanges and nut
drawing No. MS 646
tool seat Ø30h6
left
clamping
width for saw
blade 1..2,5
deep
with borings for fastening
protection hood (at additional cost)
terminal box right
type
a
e
k
KN 60 Br
KN 61 Br
KN 62 Br
190
220
270
210
240
290
313
343
393
type: KC 70 Br
drawing without sawflanges
drawing No. MS 654-2
left/right
clamping width for saw blade 1..4
tool seat Ø60h6
deep
with machined surface and borings
for fastening protection hood
(at additional cost)
type
a
e
k
KC 70 Br
KC 71 Br
KC 72 Br
260
340
420
290
370
450
469
549
629
terminal box right
dimensions subject to change
B
34
Three-Phase Flat Motors With Brake
type of protection IP 54
with squirrel cage rotor
housing and bearing shields in grey cast
iron, from type K 140 bearing shields in
steel cast iron, with lugs for fastening
protection hood according to version I
respectively II against additional price,
from types K 160 and K 200 housing and
bearing shields steel welded
type
drawing
voltage: 400 V
special voltage on request
output rating for insulation class "F"
frequency: 50 Hz
integrated electromechanical brake, active
automatically when switching off current
supply. Brake torque on request.
continuous
rating S1
intermittend
rating S6 - 60%
full load
speed
weight
saw blade
flange
(kW)
400 V ca. A
(kW)
400 V ca. A
rpm
ca. kg
mm Ø
6,6
9,2
11,0
15,0
17,5
22,0
30,0
37,0
45,0
45,0
54,0
65,0
65,0
80,0
100,0
13
18
22
30
33
41
55
67
80
80
93
112
108
133
165
8,0
11,0
13,0
18,0
20,0
25,0
37,0
45,0
55,0
55,0
65,0
75,0
70,0
90,0
120,0
16
22
26
35
37
46
67
78
96
94
112
127
116
148
197
2.820
2.820
2.820
2.900
2.900
2.925
2.925
2.925
2.940
2.940
2.940
2.950
2.950
2.950
2.950
64
77
87
99
120
182
191
205
254
375
400
460
655
655
780
160
160
160
160
180
200
200
200
200
300
300
300
special
special
special
full load
speed
weight
saw blade
flange
rpm
ca. kg
mm Ø
1.420
1.440
1.440
1.470
1.470
1.470
1.470
1.470
79
118
194
400
400
400
655
655
160
180
200
300
300
300
special
special
speed 3,000 rpm
K
80.19–2 Br
K
81.26–2 Br
K
82.31–2 Br
K
83.37–2 Br
K
91.31–2 Br
K 111.31–2 Br
K 111.31–2 Br
K 112.38–2 Br
K 113.50–2 Br
K 140.32–2 Br
K 140.38–2 Br
K 141.50–2 Br
K 160.50–2 D Br
K 160.50–2 D Br
K 162.60–2 D Br
type
MS
MS
MS
MS
MS
MS
MS
MS
MS
MS
MS
MS
MS
MS
MS
635
635
635
635
636
633
633
633
633
631
631
631
639
639
639
C
C
C
C
drawing
continuous
rating S1
(kW)
400 V ca. A
intermittend
rating S6 - 60%
(kW)
400 V ca. A
speed 1.500 rpm
K
81.27–4
K
91.31–4
K 111.32–4
K 140.38–4
K 140.38–4
K 140.38–4
K 160.49–4 D
K 160.49–4 D
Br
Br
Br
Br
Br
Br
Br
Br
MS
MS
MS
MS
MS
MS
MS
MS
635
636
633 C
631
631
631
639
639
6,2
9,5
20,0
22,0
30,0
40,0
50,0
60,0
13,5
20,0
38,0
43,0
57,0
76,0
88,0
105,0
16,0
22,0
45,0
50,0
63,0
84,0
95,0
114,0
7,5
11,0
24,0
26,0
35,0
45,0
55,0
66,0
35
B
Three-Phase Flat Motors With Brake
type of protection IP 54
type: K 80 Br
drawing No. MS 635
on
left/right
drawing without sawflanges
clamping width
for saw blade 1- 4
deep
tool seat Ø60h6
K
K
K
K
with machined surface and borings for
fastening protection hood (at additional cost)
type
a
e
k
80
81
82
83
340
420
470
530
375
455
505
565
615
695
745
805
Br
Br
Br
Br
type: K 91 Br
drawing without sawflanges
drawing No. MS 636
deep
left/right
clamping width for
saw blade 2...6
tool seat Ø60h6
with machined surface and borings
for fastening protection hood
(at additional cost)
terminal box right
type: K 110 Br
drawing without sawflanges
drawing No. MS 633C
clamping width for saw blade 2...6
left/right
deep
tool seat Ø60h6
with machined surface and borings
for fastening protection hood
(at additional cost)
a
e
k
K 111 Br
K 112 Br
K 113 Br
490
570
690
530
610
730
863
943
1063
dimensions subject to change
standard version: left hand thread
B
terminal box right
type
36
Three-Phase Flat Motors With Brake
type of protection IP 54
type: K 140 Br
drawing No. MS 631
drawing without sawflanges
deep
left/right
clamping
width for saw
blade 0...6
type
a
e
k
K 140 Br
K 141 Br
670
855
720
905
1111
1293
type: K 160 Br
drawing No. MS 639
left/right
deep
terminal box right
1) Saw arbor motor as described
on page 33
The integrated brakes in standard design
have the following brake torques:
series
series
series
series
KN
KN
KC
KN
5..
6..
7..
7..
Br
Br
Br
Br
brake
brake
brake
brake
torque
torque
torque
torque
4 Nm
3 Nm
16 Nm
17 Nm
To enable a budgetary check, we ask for
information about:
type
a
e
k
K 160 Br
K 162 Br
815
895
895
1025
1366
1446
Note
Design of brake
● speed (rpm) at which the brake should
become active
● switching frequency (switches per hour)
● moments of external inertia (kgm2)
2) General validity
The electromechanical brake is to be
checked in each case of application.
Its stability, i. e. lifetime of the brake discs,
is a function of speed, switching frequency
and moments of inertia.
dimensions subject to change
standard version: left hand thread
37
B
B
38