Bosch Rexroth A2FM series, Инструкция по эксплуатации

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RE 91001-01-X-B2/01.2016, Bosch Rexroth AG
Axial piston fixed motor | A2FM for explosive areas
Technical data
7
Technical data
Size NG 10 12 16 23 28 32 45 56
Displacement geometric, per revolution
V
g
cm 3 10.3 12 16 22.9 28.1 32 45.6 56.1
Speed maximum 1) Temperature class T3 n
max
rpm 8000 8000 8000 6300 6300 6300 5600 5000
Temperature class T4
n
max
rpm 4000 4000 4000 3150 3150 3150 2800 2500
Inlet flow 2) q
v max
l/min 82 96 128 144 177 202 255 281
Torque
3)
at Δp = 350 bar T Nm 57 67 89 128 157 178 254 313
at Δp = 400 bar T Nm 66 76 102 146 179 204 290 357
Rotary stiffness c
min
kNm/rad 0.92 1.25 1.59 2.56 2.93 3.12 4.18 5.94
Moment of inertia for rotary group
J
TW
kgm 2 0.0004 0.0004 0.0004 0.0012 0.0012 0.0012 0.0024 0.0042
Maximum angular acceleration α rad/s² 5000 5000 5000 6500 6500 6500 14600 7500
Case volume
V
l 0.17 0.17 0.17 0.20 0.20 0.20 0.33 0.45
Weight approx. m kg 5.4 5.4 5.4 9.5 9.5 9.5 13.5 18
Size NG 63 80 90 107 125 160 180
Displacement geometric, per revolution V
g
cm
3
63 80.4 90 106.7 125 160.4 180
Speed maximum 1) Temperature class T3 n
max
rpm 5000 4500 4500 4000 4000 3600 3600
Temperature class T4 n
max
rpm 2500 2250 2250 2000 2000 1800 1800
Inlet flow 2)
q
v max
l/min 315 362 405 427 500 577 648
Torque 3) at Δp = 350 bar T Nm 351 448 501 594 696 893 1003
at Δp = 400 bar T
Nm 401 512 573 679 796 1021 1146
Rotary stiffness c
min
kNm/rad 6.25 8.73 9.14 11.2 11.9 17.4 18.2
Moment of inertia for rotary group J
TW
kgm
2
0.0042 0.0072 0.0072 0.0116 0.0116 0.0220 0.0220
Maximum angular acceleration α rad/s² 7500 6000 6000 4500 4500 3500 3500
Case volume V l 0.45 0.55 0.55 0.8 0.8 1.1 1.1
Weight approx.
m
kg 18 23 23 32 32 45 45
Determining the operating characteristics
Inlet flow
q
v
=
V
g
× n
[l/min]
1000 × η
v
Rotational
speed
n =
q
v
× 1000 × η
v
[rpm]
V
g
Torque T =
V
g
× Δp × η
hm
[Nm]
20 × π
Power P =
2 π × T × n
=
q
v
× Δp × η
t
[kW]
60000 600
Key
V
g
Displacement per revolution [cm 3 ]
Δp
Differential pressure [bar]
n Rotational speed [rpm]
η
v
Volumetric efficiency
η
hm
Hydraulic‑mechanical efficiency
η
t
Total efficiency ( η
t
= η
v
× η
hm
)
Note
▶ Theoretical values, without efficiency and tolerances;
values rounded.
▶ Operation above the maximum values or below the
minimum values may result in a loss of function,
a reduced service life or in the destruction of the axial
piston unit. Other permissible limit values, such as
speed variation, reduced angular acceleration as a
function of the frequency and the permissible angular
acceleration at start (lower than the maximum angular
acceleration) can be found in data sheet 90261.
1)
The valid values (observing the maximum permissible flow):
– for the optimum viscosity range from ν
opt
= 36 to 16 mm 2 /s
– with hydraulic fluid on the basis of mineral oil
2)
Observe limitation of inlet flow due to counterbalance valve (see
page 24).
3)
Torque without radial force, with radial force see page 8.