Sauer 42R28 42R41 Hydraulic Piston Pump
Series 42 Family of Pumps and Motors
Series 42 hydrostatic pumps and motors can be applied together or combined with other products in a
system to transfer and control hydraulic power. They are intended for closed circuit applications.
1 Series 42R28 - advanced technology
2 Seven sizes of variable displacement pumps
3 Proven reliability and performance
4 Compact, lightweight
5 Worldwide sales and service
6 PLUS+1 ™ compliant controls and sensors
Series 90 variable displacement pumps are compact, high power density units. All models utilize the
parallel axial piston/slipper concept in conjunction with a tiltable swashplate to vary the pump's
displacement. Reversing the angle of the swashplate reverses the flow of oil from the pump and thus
reverses the direction of rotation of the motor output.
Series 90 pumps include an integral charge pump to provide system replenishing and cooling oil flow, as
well as control fluid flow. They also feature a range of auxiliary mounting pads to accept auxiliary
hydraulic pumps for use in complementary hydraulic systems. A complete family of control options is
available to suit a variety of control systems (mechanical, hydraulic, electric).
Series 90 motors also use the parallel axial piston/slipper design in conjunction with a fixed or tiltable
swashplate. They can intake/discharge fluid through either port; they are bidirectional. They also include
an optional loop flushing feature that provides additional cooling and cleaning of fluid in the working
loop. For more information on Series 90 motors
|
Sauer 90
|
Dimension
|
90R030
90L030
|
90R042
90L042
|
90R055
90L055
|
90R075
90L075
|
90R100
90L100
|
90R130
90L130
|
90R180
90L180
|
90R250
90L250
|
|
Displacement
|
cm3
|
30
|
42
|
55
|
75
|
100
|
130
|
180
|
250
|
|
in3
|
1.83
|
2.56
|
3.35
|
4.57
|
6.1
|
7.93
|
10.98
|
15.25
|
|
Input speed
|
Minimum
|
min-1 (rpm)
|
500
|
500
|
500
|
500
|
500
|
500
|
500
|
500
|
|
Rated
|
min-1 (rpm)
|
4 200
|
4 200
|
3 900
|
3 600
|
3 300
|
3 100
|
2 600
|
2 300
|
|
Maximum
|
min-1 (rpm)
|
4 600
|
4 600
|
4 250
|
3 950
|
3 650
|
3 400
|
2 850
|
2 500
|
|
Max. Attainable
|
min-1 (rpm)
|
5 000
|
5 000
|
4 700
|
4 300
|
4 000
|
3 700
|
3 150
|
2 750
|
|
Theoretical
|
Nm/bar
|
0.48
|
0.67
|
0.88
|
1.19
|
1.59
|
2.07
|
2.87
|
3.97
|
|
Torque
|
in lb/1000 psi
|
290
|
410
|
530
|
730
|
970
|
1 260
|
1 750
|
2 433
|
|
Mass moment of inertia of the int. rotating parts
|
kg m2
|
0.0023
|
0.0039
|
0.006
|
0.0096
|
0.015
|
0.023
|
0.038
|
0.065
|
|
lb ? ft2
|
0.0546
|
0.0926
|
0.1424
|
0.228
|
0.356
|
0.546
|
0.902
|
1.543
|
|
Weight (with MA Control)
|
kg
|
28
|
34
|
40
|
49
|
68
|
88
|
136
|
154
|
|
lb
|
62
|
75
|
88
|
108
|
150
|
195
|
300
|
340
|
|
Usage
|
Paver,Road Roller,Concrete Mixer
|