Data Sheet
Series 45 Axial Piston Open Circuit Pump
K2 Frame
The future is here – Series 45 open circuit axial piston
K2 pumps. The K2 marks the beginning of the next
generation of Danfoss open circuit pumps. Designed
to optimize weight, and size while offering greater
flexibilities.
Improved performance
With an optimized package, the K2 responds to
customer needs by significantly reducing pump
weight and package size — while improving
performance with increased rated pressure and
higher rated speed capabilities. The result is the best
combination of package size and weight on the
market.
Additional features inside the housing allow for
dissipation of noise and vibration, and provides
improved low sound power. In combination with the
one-piece iron housing and valve plate design, the K2
allows for superior sound reduction that provides a
more comfortable experience for the operator and
helps meet industry regulations.
Modularity and flexibility
Four unique endcap styles offer more variation to
improve installation flexibility and remove significant
weight from the pump. The K2 pump will use
common Series 45 J, F, and E style controls, and our
new Fan Drive Control for a common control style
across frame sizes.
Features
•
Reduced Length up to 20%
•
Reduced Width up to 10%
•
Reduced Weight up to 30%
•
Additional endcap variations to reduce
installation envelope
•
Improved Power Density and
Performance
©
Danfoss | November 2019 AI00000318en-000103 | 1
Increased pressure of up to 50 bar
‒
over current L and K Frames
Increased temperature raitings
‒
Increased speed ratings
‒
•
Proven Reliability
Common control with J, F and E
‒
Frames making one control for all of
S45 family
Additional control options
‒
New Fan Drive Control (FDC)
‒
New PC/LS with On/Off
‒
Comprehensive technical literature is
online at www.danfoss.com
Dimensions
80
25.8
97.4
32
146
73
67.3
132.73
110
Ø 12.5
77.4
6.7
32
97.6
146
73
128.4
Ø12.5
4.4
Ø 14.3
5.1
44.5
166
80
32
20.7
100
112.8
138.5
P109101
204.2
175.6
193
193
S45 K2 axial (top) and radial (bottom) in mm
Specifications
Parameter Unit K25C K30C K38C K40C K45C
Max. displacement cm
Working pressure bar
Rated input
speed
Min. min
Cont. 3450 3200 2900 3100 2900
Max. 3750 3450 3050 3200 3050
Weight (axial ports) kg
3
[in3]25[1.53]30[1.83]38[2.32]40[2.44]45[3.97]
260 [3771]
[psi]
-1
500
rpm
16 [35]
[lb]
Control features
Function type Pressure
comp.
Pressure comp. only x
Pressure comp/load sensing x x
Remote PC x x
Electronic on/off x x x x x
Electronic dump x x x x x x x
Electronic proportional x x x x x x x
Fan drive control
*
For fan drive applications only.
*
x x x x
Load
sensing
Cold
start
relief
Power
management
Normally
open
Normally
closed
12v 24v
Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products
already on order provided that such alterations can be made without subsequent changes being necessary in specifications already agreed.
All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.
2 | © Danfoss | November 2019 AI00000318en-000103
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