Danfoss Series 45 Axial Piston Open Circuit PumpsDanfoss Series 45 is a complete family of high
performance variable displacement, axial piston pumps. Each frame is designed
to exceed the demanding work function requirements of the mobile equipment
marketplace. Each frame within the Series 45 family is uniquely designed to
optimize performance, size, and cost.
High Performance
- Displacements from 25 cm³ - 147 cm³ [1.53 - 8.97
in3/rev]
- Speeds up to 3600 rpm
- Pressures up to 310 bar [4495 psi]
- Variety of control system options including load
sensing and pressure compensated
Latest Technology
- Customer-driven using quality function deployment
(QFD) and design for manufacturability (DFM) techniques
- Optimized design maximizes efficiency and quiet
operation
- Computer-modeled castings to optimize inlet
conditions for maximum pump speed
- Compact package size minimizing installation space
requirements
- Heavy-duty tapered roller bearings for long life
- Single piece rigid housing to reduce noise and leak
paths
- Integrated controls for high speed response and
system stability
Reliability
- Designed to rigorous standards
- Proven in both laboratory and field
- Manufactured to rigid quality standards
- Long service life
- Significantly fewer parts
- No gasket joints
- Robust input shaft bearings to handle large
external shaft loads
- Integrated gauge ports for monitoring operating
conditions
Benefits:
Reduced Installation
Costs
- Through-drive capability for multi-circuit systems
- Range of mounting flanges, shafts and porting
options for ease of installation
- Compact size minimizes installation space
requirements
- Help meet engine emission standards
- Reduce engine size by managing power usage more
effectively
Reduce Operating Costs
- Optimize machine power usage to maximize fuel
economy
- Simple design reduces service requirements
- Heavy duty taper roller shaft bearings provide long
service life
Increased Customer
Satisfaction
- Reduced noise for operator comfort
- High performance increases productivity
Reduced Heat Load on
Cooling System
- High efficiency reduces hydraulic heat generation
- Allows for smaller cooling packages
Typical applications
- Cranes
- Telescopic handlers
- Forklift trucks
- Wheel loaders
- Sweepers
- Backhoe loaders
- Forestry and agricultural machinery
- Fan drives
- Paving Machines
- Mining Equipment
- Mowers
- Dozers
- Drilling Machines
- Mini-Excavators
- Other Applications
The Series 45 product
family
Basic units
The series 45 family of open circuit, variable
piston pumps, offers a range of displacements from 25 to 147 cm³/rev [1.53 to
8.97 in3/rev]. With maximum speeds up to 3600 rpm and continuous operating pressures
up to 310 bar [4495 psi], product selection is easily tailored to the flow and
pressure requirements of individual applications.
Load sensing open
circuit system
The pump receives fluid directly from the reservoir
through the inlet line. A screen in the inlet line protects the pump from large
contaminants. The pump outlet feeds directional control valves such as PVG-32’s,
hydraulic integrated circuits (HIC), and other types of control valves. The PVG
valve directs pump flow to cylinders, motors and other work functions. A heat
exchanger cools the fluid returning from the valve. A filter cleans the fluid
before it returns to the reservoir. Flow in the circuit determines the speed of
the actuators. The position of the PVG valve determines the flow demand. A
hydraulic pressure signal (LS signal) communicates demand to the pump control.
The pump control monitors the pressure differential between pump outlet and the
LS signal, and regulates servo pressure to control the swashplate angle.
Swashplate angle determines pump flow. Actuator load determines system
pressure. The pump control monitors system pressure and will decrease the
swashplate angle to reduce flow if system pressure reaches the PC setting. A
secondary system relief valve in the PVG valve acts as a back-up to control
system pressure.
To enquire about Danfoss Series 45 Axial Piston Pumps and
for further technical help / assistance, please call the Technical Team on
01709 821002.
You can also view the Danfoss Series 45 Axial Piston
Pumps Technical Data Sheet at: http://files.danfoss.com/documents/520l0519.pdf
This product was added to our catalog on Thursday 09 April, 2015.
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