Danfoss K2 Data sheet

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%	‒ Increased pressure of up to 50 bar
•	Reduced Length up to 20%	‒ Increased pressure of up to 50 bar
•	Reduced Width up to 10%	over current L and K Frames	Comprehensive technical literature is
•	Reduced Weight up to 30%	‒ Increased temperature raitings	online at www.danfoss.com
•	Additional endcap variations to reduce	‒ Increased speed ratings
•	Additional endcap variations to reduce	‒ Increased speed ratings
•	installation envelope	• Proven Reliability
•	Improved Power Density and	‒ Common control with J, F and E
	Performance	Frames making one control for all of
		S45 family

‒ Additional control options ‒ New Fan Drive Control (FDC) ‒ New PC/LS with On/Off

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Dimensions

S45 K2 axial (top) and radial (bottom) in mm

97.6	32
6.7
		Ø 12.5
		132.73
		110
		77.4
		67.3
73
	146
44.5	4.4	128.4
44.5	4.4
5.1		Ø12.5
5.1
		Ø 14.3

146

Control features

97.4	193
97.4
	25.8
32
80
	175.6
	193
138.5
112.8
100
	20.7
32
80	166
	166
	204.2
	P109101

Specifications

Parameter		Unit	K25C	K30C	K38C	K40C	K45C
Max. displacement		cm3	25	30	38	40	45
		[in3]	[1.53]	[1.83]	[2.32]	[2.44]	[3.97]
Working pressure		bar	260 [3771]
		[psi]

Rated input	Min.	min-1	500
speed		rpm
speed	Cont.	rpm	3450	3200	2900	3100	2900
	Cont.		3450	3200	2900	3100	2900

	Max.		3750	3450	3050	3200	3050

Weight (axial ports)		kg	16 [35]
		[lb]

Function type	Pressure	Load	Cold	Power	Normally	Normally	12v	24v
	comp.	sensing	start	management	open	closed
			relief
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*	x					x	x	x
* For fan drive applications only.

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.

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