Installation and Operational Instructions for ROBA
®
-diskstop
®
Type 894.5_ _._ _ Sizes 9 and 10
(B.8.4.5.EN)
27/08/2020 TK/TL/GC/SU
Chr. Mayr GmbH + Co. KG
Eichenstraße 1, D-87665 Mauerstetten, Germany
Phone: +49 8341 804-0, Fax: +49 8341 804-421
Page 9 of 17
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Table 1: Technical Data
Size
9
10
Max. braking force
8749 N
11182 N
Min. braking force
5029 N
4551 N
Braking force tolerance
0 / +60 %
0 / +60 %
Max. friction work
1)
Q
r max.
per braking action
400000 J
400000 J
Brake disk diameter D
600
– 1200 mm
650
– 1500 mm
Effective friction diameter D
eff
D
eff
= D
– 80 mm
D
eff
= D
– 80 mm
Max. trigger speed
25.1 m/s
25.1 m/s
Brake disk width K (+0 / -0.15 mm)
25
– 30 mm
25
– 30 mm
Nominal voltage U
N
see Type tag
see Type tag
Overexcitation voltage U
O
2 x U
N
2 x U
N
Coil capacity at nominal voltage P
N
see Type tag
see Type tag
Coil power at overexcitation P
O
4 x P
N
4 x P
N
Overexcitation time t
O
1
– 2 s
1
– 2 s
Max. air gap "a" (Fig. 2) after wear
1.8 mm
1.8 mm
Protection (electrical)
IP54
IP54
Protection (mechanical)
IP10
IP10
Duty cycle with 180 switchings per hour
60%
60%
Electrical connection of the magnetic coil
2 x 0.88 mm2
2 x 0.88 mm2
Electrical connection of the microswitch
3 x 0.5 mm
2
3 x 0.5 mm
2
Hand release force
approx. 400 N
approx. 400 N
Hand release stroke
> 3 mm
> 3 mm
Tightening torque Item 5
10 Nm
10 Nm
Tightening torque Item 9
183 Nm
360 Nm
Tightening torque Item 10
710 Nm
710 Nm
Tightening torque Item 17
9 Nm
9 Nm
Tightening torque Item 20
9 Nm
9 Nm
Ambient temperature
-5 °C to +40 °C
-5 °C to +40 °C
Weight
54 kg
76 kg
DANGER
If the brake is operated with an air gap "a"
> 1.8 mm, it becomes a
safety risk
as the braking effect is no longer given
because the armature disk (2) lies again the hand release (6).
1)
The thermal load for a brake cannot be stated. Most of the brake energy is transferred onto the brake disk.
The thermal load capability is dependent on the heat dissipation capacities of the brake disk.
Table 2: Dimensions
Size
A
B
B1
C
C1
E
F
G
H
M
M1
N
N1
T
T1
1)
9
400
445
344
127
32
63.7
204
M24
94
75
45
75
33
53
31.5
10
430
474
360
129
52.5
50
204
M24
105
75
50
75
35
53
52
1)
The tolerance for dimension “T1” is ±2.5 mm.