11
Data Compact brake MDA
Back pressure in brake cylinder drainage line.
Diagram 1
MDA 5 - MDA 10
Accessories
Fig. 11
MDA 5 - MDA 10
mounted on motor
Fig 12
MDA 14 and MDA 21
Max external radial load: 200 kN (44800 lbf)
External load: 110 kN (24600 lbf) according to
FEM M5: (L2:T5)
Fig 12a
MDA 14 and MDA 21 for separate mounting
T
Back pressure in brake cylinder drainage line.
Diagram 1a
MDA 14 - MDA 21
The brake is fatigue safe for pulsating
torque
Oil volume
MDA 5
14250 Nm (10500 lbf·ft) 1,7 l (0,45 US.gal.)
MDA 7
20000 Nm (14750 lbf·ft) 1,7 l (0,45 US.gal.)
MDA 10
28500 Nm (21000 lbf·ft) 1,7 l (0,45 US.gal.)
MDA 14
39800 Nm (29350 lbf·ft) 2,0 l (0,53 US.gal.)
MDA 21
59800 Nm (44100 lbf·ft) 2,0 l (0,53 US.gal.)
Pilot presssure: min 20 bar (280 psi) max 50 bar (725 psi)
Recommended opening pressure: 20-25 bar (290-360 psi)
Fatigue resistant for 25 bar (360 psi)
Displacement: MDA 5-10 0,2 lit. (0,06 US.gal.)
MDA 14 & 21 Min. 0,2 lit (0,06 US.gal)
MDA 14 & 21 Max. 0,3 lit (0,08 US.gal.)
Max speed 100 rpm, peaks up to 220 rpm.
Braking torque, dynamic with friction coeffi cient 0,12
MDA 5
22600 ± 700 Nm (16650 ± 515 lbf·ft)
MDA 7
30400 ± 900 Nm (22400 ± 660 lbf·ft)
MDA 10
41500 ± 2000 Nm (30600 ± 1475 lbf·ft)
MDA 14
57000 ± 3000 Nm (42000 ± 2210 lbf·ft)
MDA 21
81800 ± 4300 Nm (60300 ± 3170 lbf·ft)
Braking torque, static with friction coeffi cient 0,14
MDA 5
26400 ± 800 Nm (19450 ± 590 lbf·ft)
MDA 7
35500 ± 1100 Nm (26200 ± 810 lbf·ft)
MDA 10
48400 ± 2300 Nm (35700 ± 1695 lbf·ft)
MDA 14
66800 ± 3500 Nm (49200 ± 2580 lbf·ft
MDA 21
95000 ± 5000 Nm (70000 ± 3685 lbf·ft)
Inertia
MDA 5
0,110 kgm
2
(2,3 lbf·ft
2
)
MDA 7
0,128 kgm
2
(3,0 lbf·ft
2
)
MDA 10
0,156 kgm
2
(3,7 lbf·ft
2
)
MDA 14
0,360 kgm
2
(8,5 lbf·ft
2
)
MDA 21
0,417 kgm
2
(9,9 lbf·ft
2
)
There dynamic conditions may accour
please contact your Hägglunds
representative.
For emergency braking the brake can
take these energies:
MDA 5
540 kJ (511 Btu)
MDA 7
755 kJ (715 Btu)
MDA 10
1080 kJ (1023 Btu)
MDA 14
950 kJ (900 Btu)
MDA 21
1350 kJ (1278 Btu)
