MP1 design specifications
Features
MP1
Design
Axial piston pump with variable displacement using compact servo piston control.
Direction of input rotation
Clockwise or counterclockwise
Recommended installation position
Pump installation position is discretionary, however the recommended control position is
on the top or at the side with the top position preferred. If the pump is installed with the
control at the bottom, flushing flow must be provided through port M14 located on the
EDC, FNR, NFPE, NFPH and MDC control. Vertical input shaft installation is acceptable. The
housing must always be filled with hydraulic fluid. Recommended mounting for a multiple
pump stack is to arrange the highest power flow towards the input source. Consult
Danfoss for non-conformance to these guidelines.
Filtration configuration
Suction or charge pressure filtration
MP1 technical data
Feature
28
32
38
45
Displacement (cm
3
/rev [in
3
/rev])
28.0 [1.71]
31.8 [1.94]
38.0 [2.32]
45.1 [2.75]
Flow at rated (continuous) speed (l/min [US gal/min])
95.3 [25.2]
108.1 [28.5]
125.3 [33.1]
149.5 [39.5]
Torque at maximum displacement (N•m/bar [lbf•in/1000psi])
0.45 [272.0]
0.51 [308.9]
0.60 [369.1]
0.72 [438.1]
Mass moment of inertia of rotating components (kg•m
2
[slug•ft
2
])
0.0020 [0.0015]
0.0030 [0.0022]
Mass (kg [lb])
29.6 [65.3]
38 [83.8]
Oil volume (liter [US gal])
1.5 [0.40]
2.0 [0.53]
Mounting flange
ISO 3019-1 flange 101-2 (SAE B)
Input shaft outer diameter, splines and tapered shafts
ISO 3019-1, outer Ø22mm - 4 (SAE B, 13 teeth)
ISO 3019-1, outer Ø25mm - 4 (SAE B-B, 15 teeth)
ISO 3019-1, outer Ø22mm - 1 (Straight
Key)
ISO 3019-1, outer Ø31mm - 4 (19 teeth)
ISO 3019-1, outer Ø25mm - 4 (Straight
Key)
ISO 3019-1, outer Ø25mm -3 (Conical
keyed, taper 1:8)
Auxiliary mounting flange with metric fasteners, shaft outer diameter
and splines
ISO 3019-1, flange 82-2, outer Ø16mm - 4 (SAE A, 9 teeth)
ISO 3019-1, flange 82-2, outer Ø19mm - 4 (SAE A, 11 teeth)
ISO 3019-1, flange 101-2, outer Ø22mm - 4 (SAE B, 13 teeth)
ISO 3019-1, flange 101-2, outer Ø25mm - 4 (SAE B-B, 15 teeth)
Main port configuration A, B
ISO 11926-1 - 1 1/16 - 12 (Inch O-ring
boss)
ISO 11926-1 - 1 5/16 - 12 (Inch O-ring
boss)
ISO 6149-1, M27x2 (Metric o-ring boss)
ISO 6162, Ø19mm, (Split flange boss,
M10x1.5)
ISO 6149-1 - M33x2 (Metric O-ring
boss)
Case drain ports L1, L2
ISO 11926-1, 1 1/16 -12 (Inch O-ring boss)
ISO 6149-1, M27x2 (Metric O-ring boss)
Suction ports S
ISO 11926-1 - 1 1/16-12 (Inch O-ring
boss)
ISO 6149-1 - M27x2 (Metric O-ring
boss)
ISO 11926-1 - 1 5/16-12 (Inch O-ring
boss)
ISO 6149-1 - M33x2 (Metric O-ring
boss)
Other ports
ISO 11926-1, (Inch O-ring boss)
ISO 6149 -1, (Metric O-ring boss)
Customer interface threads
Metric fasteners
Service Manual
MP1
Technical specifications
©
Danfoss | April 2019
AX00000244en-000201 | 9
