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Axial piston variable displacement pumps, Series 20, are of swash plate design with variable flow capability uitable for hydrostatic transmissions with closed circuit.
The flow rate is in proportional relation with the input pump speed and continuously variable displacement, which, in turn, is determined by the swash plate angle and is adjustable between zero and maximum value of the displacement. Flow direction is reversed by a tilting of the swash plate to the opposite side of the neutral or zero displacement position.
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Variable displacement axial piston pumps of swash plate design series 3K-10 are designed for various applications working in closed hydrostatic circuit.
Fluid flow is in proportional relation with speed and displacement of pump, which can be increased with changes of swash plate angle from zero to maximum. Standard pump is equipped with internal charge pump - G-rotor type, manifold assembly with block of flushing and two pressure relief valves on the high pressure ports. Relief valves protect the hydrostatic transmission from overloads. Standard pump is equipped with mechanical - hydraulic servo valve with mechanical feedback. Tightness of the case around the exiting part of the shaft is protected by the shaft seal for max. pressure 0,25 MPa (intermittent 0,5 MPa).
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The InLine variable displacement pump type V30D and V30E work according to the swash plate principle and are intended for open circuit operation in industrial and mobile hydraulics. There is also an option for a thru-shaft for flange mounting additional variable and fixed displacement pumps. Type V30E is intended as successor of V30D, where the completely new development allowed to realize state of the art pump design. This concerns primarily the optimization of self-suction speed rating, minimized noise level, weight, and pulsation as well as increased service life.
These pumps are suited for a wide range of applications due to their low running noise and various pump controllers.
Hydraulic circuits where several outlet flows are required can be fed either by one individual pump or a multiple pump. Main benefit of these pumps are the sturdy design, the good performance/weight ratio, long service life
due to oversized bearings, and the swash plate angle indicator.
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The T1-51, -81, -121 fixed displacement pump has been specifically developed to meet the requirements of light duty truck applications with short, non-frequently operating cycles such as tippers and small loaders.
Input power up to 71 kW
Shaft speed up to 2300 rpm
Operating pressure up to 350 bar
High overall efficiency
Low weight
Small intalled envelope
Proven reliability
Easy servicing
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Atos PVPC pumps are variable displacement axial piston pumps for high pressure operation on industrial applications at low noise level
• 4 basic models up to 100 cm3/rev
• pressure up to 280/350 bar
• full line of electrohydraulic servocontrols, by analog or digital electronics
- vane pumps, fixed displacement, cartridge design, with integral hydraulic balancing, low noise level
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M Series pumps are open circuit, axial piston designs. A variety of controls provides the ability to match the pumps to each application.
A strong, proven rotating group allows the pumps to handle pressures to 280 bar (4000 psi) continuous and 320 bar (4600 psi) intermittent - with less maintenance cost. Each frame can also contain a 230 bar (3300 psi) higher flow rotating group that provides additional application flexibility. High-load bearings and a stiff drive shaft help provide a pump life of 30,000 hours (@ 65% rated pressure), reducing operating costs and extending machine life.
M Series pumps feature a saddle-type yoke with steel-backed polymer bearings. The stiff yoke reduces deflection and allows even loading of bearings, improving life. A single control piston reduces loading on the yoke, resulting in reduced pump size that allows installation in tighter locations.
M Series pumps operate at a level of quietness that exceeds the requirements of today's demanding industrial conditions. The pumps feature a unique three-piece envelope (flange, housing and valve block) specifically created for low fluid-borne and structureborne noise levels. Another pump feature - a bimetal timing plate - improves pump filling characteristics that, in turn, reduces fluid-borne noise and extends pump life.
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Fixed displacement bent axis piston pumps.
STRADA pumps are ideally suited for PTOs applications in vehicles.
Displacements from 2.49 in³/rev (40,9 cm³/rev) to 6.71 in³/rev (110 cm³/rev) available in groups 32 and 37.
Max. peak pressure up to 5800 psi (400 bar)
Max. speed up to 2950 min-1
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The quality, expertise and experience to deliver to your precise requirements.
Hydrokraft piston pumps and motors are renowned worldwide for their robustness and reliability. Hydrokraft offers a complete range of open and closed circuit pumps and motors available in fixed and variable inline design from 66 - 750 cm3 per revolution. Larger displacements can be achieved using combinations of our pumps and motors.
Hydrokraft manufactures high-pressure axial piston hydraulic pumps, motors and transmissions for applications in stationary industrial equipment, marine, mining, chemical processing, primary metals and other markets in open circuit or closed circuit applications.
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Variable displacement axial piston pumps swash plate design.
PLATA pumps are ideally suited for medium and high pressure open circuit applications
Displacements from 1.74 in³/rev (28,49 cm³/rev) to 5.37 in³/rev (87,9 cm³/rev)
Max. peak pressure up to 5075 psi (350 bar)
Max. speed up to 3000 min-1
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These AR series pumps heve been developed on the basis of the same design concept as A series pumps which are renowned for high efficency and low noise level. Using an alminum body, the size of the pump is more compact and the mass is considerably reduced. The noise level has also been reduced.
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Adopting a process of continual product development has resulted in todays K3V series of axial piston pumps.
Features such as high efficiency , high power density, large self priming capability, long life, low noise and a wide range of control options has shown the K3VG to be a market leader.
The K3VG unit has been developed specifically for the industrial market where noise, efficiency, controllability, extended pump life and reliability are considered essential.
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The present K3V is designed specifically for the earth moving and construction industries where in excess of 700,000 units have been supplied.
Features such as high efficiency , high power density, large self priming capability, long life, low noise and a wide range of control options has enabled the K3V to be a clear market leader.
Adopting a process of continual product development has resulted in todays K3V series of axial piston pumps.
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The latest design in the proven K3V series, the medium pressure, K3VL pump has been developed for the mobile and industrial market where noise, efficiency, controllability, extended pump life and reliability are all considered essential.
Pioneering noise reduction technology along with features such as high efficiency, compact design, high power density, large self priming capability, long life, and a wide range of control options give rise to exceptional overall specification and performance.
Available in SAE and ISO mounting options, this low noise, medium pressure, variable displacement, open circuit pump provides the opportunity to share in the future of hydraulic pump technology.
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Features/performances
The pump is available in faces 71,100 and 140 DC.
Sizes 28,45 and 180 DC will be marketing soon.
Pressure rating = 280 bar
Intermittent Pmax = 350 bar
Hydromechanical regulations: pressure, flow, power. See A10VSO 32 according to note RF92714
Electronic regulations:
SYDFE1-3X: analogical order via off-set amplifier,
SYDFEE-3X: analogical order via integrated amplifier,
SYDFEC-3X: order by CANopen via integrated amplifier
Description and Applications
A10VSO is an axial-piston pump of variable cubic capacity for industrial applications on average pressure. It showed its reliability in the plastic machine, the machine tool, the paper mill, or the agroalimentary one
Series 32 brings the following innovations:
Improvement of the ambient noise (- 3dB) and reduction of the pulsations by room of precompression
Improvement of the total output (+3%)
Improvement of the reliability of the rotary group and the hydraulic regulators
Improvement of its flexibility for the combinations of pumps: catch of universal force, standard ISO and SAE
Series 32 preserves the possibilities of operation with the not easily flammable fluids.
For the applications to high dynamic response and with a view to energy saving, series 32 also proposes a hydraulic electro order in loop closed under name SYDFE (X) - 3X.
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Variable-displacement axial piston pumps for closed circuits
Variable displacement axial piston pumps for open circuits
Fixed displacement axial piston motors
Variable displacement axial piston motors
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Complete range of variable displacement axial piston pumps, with swashplate system, for closed loop transmissions. All pumps meet the need for continuously changing speeds, optimise the use of power and torque based on operating requirements, with hydraulic, mechanical, electric and electronic servo controls.
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Axial piston pumps with fixed displacement have been development to work in light trucks with shorts periods of time. Its design is very similar to F1 series.
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Axial piston units are available in the form of pumps and motors in bent axis design or swashplate design for medium- and high-pressure ranges. They are the main components in the hydrostatic transmission. Compact size and high power density, economy and reliability are characteristic advantages which speak for the use of hydrostatic transmissions, together with the fact that they meet the demand for high speed and high torque, as well as optimum efficiency.
Characteristics:
- Open and/or closed circuit
- Displacement 5 to 1000 cm3
- Nominal pressure up to 450 bar
- Maximum speed up to 11,000 rpm
- Maximum power output 933 kW
Our versatile transmissions for mobile applications can be combined in a variety of ways with pumps, motors and open or closed loop control devices to offer the optimum design for every drive application and every power range.
Key advantages:
- Infinitely variable speed setting at fixed or variable input speed
- Immediate, jolt-free change in direction of rotation
- Simple, ergonomic operation
- High turnaround
- Automatic torque conversion
Axial piston pumps and motors are used for the travel drive and working hydraulics in a wide variety of mobile machines.
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DESCRIPTION Oil hydraulic bent pump, 108cc/rot, aplication pressure-up to 350bar, peak pressure-400bar
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Axial piston units are available in the form of pumps and motors in bent axis design or swashplate design for medium- and high-pressure ranges. They are the main components in the hydrostatic transmission. Compact size and high power density, economy and reliability are characteristic advantages which speak for the use of hydrostatic transmissions, together with the fact that they meet the demand for high speed and high torque, as well as optimum efficiency.
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Capacity to control minimum displacement
The DELTA pumps are designed to regulate flow from maximum flow to flow cancellation mode. However, some applications require a minimum outlet flow to be maintained, regardless of how flow is controlled from maximum to minimum.
Capacity to have a high speed rotation
The rotating speed of the DELTA pumps depends on:
• flow supplied by the pump,
• the fluid viscosity,
• the pressure at inlet point of the pump.
For applications at higher speeds than those indicated, please contact our Technical Department with details of these parameters, to enable us to advise what can be recommended.
■ Features of DELTA pumps
The DELTA pumps are equipped with a maximum displacement control.
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Axial piston units are available in the form of pumps and motors in bent axis design or swashplate design for medium- and high-pressure ranges. They are the main components in the hydrostatic transmission. Compact size and high power density, economy and reliability are characteristic advantages which speak for the use of hydrostatic transmissions, together with the fact that they meet the demand for high speed and high torque, as well as optimum efficiency.
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BI30M Oil hydraulic bent pump, 32cc/rot, aplication pressure-up to 350bar, peak pressure-400bar
BI40M Oil hydraulic bent pump, 42cc/rot, aplication pressure-up to 350bar, peak pressure-400bar
BI50M Oil hydraulic bent pump, 50cc/rot, aplication pressure-up to 350bar, peak pressure-400bar
BI60M7 Oil hydraulic bent pump, 60cc/rot, aplication pressure-up to 350bar, peak pressure-400bar
BI80M7 Oil hydraulic bent pump, 81cc/rot, aplication pressure-up to 300bar, peak pressure-350bar
BI80P Oil hydraulic bent pump, 80cc/rot, aplication pressure-up to 350bar, peak pressure-400bar
BI110P7 Oil hydraulic bent pump, 108cc/rot, aplication pressure-up to 350bar, peak pressure-400bar
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A majority of the variable piston pumps on the
market were designed decades ago, and very
few modifications have been made since then.
When Parker Hannifin decided to develop a new line of
variable piston pumps for the mobile market, it was
obvious to us that we needed to listen to and understand
our markets. We needed to get our hands around the
latest requirements and move the development forward.
Instead of starting the design work at the drawing board,
we went out to our customers and asked them what
characteristics they required from a new pump. Very
soon, the most important requirements became obvious.
OEM’s were looking for pumps that were easy and
inexpensive to install, had a low noise level, lasted a long
time, had a high self-priming speed and were equipped
to handle future pump controls.
With this in mind, our product team went to work on
perfecting our new line of pumps. The result: the new
Variable Piston Pump Series P2/P3.
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The variable volume and pressure compensated design simplifies circuit design, and reduces heat buildup and noise. Four pump control options permit the designer to choose the most efficient means to power his hydraulic equipment. Choices include the standard pressure compensator control, remote pressure control, load sensing control, and horsepower limiting control.
Brass piston slippers pivot and rotate to equalize wear while a fluid passage through the slipper reduces loading and provides lubrication for the piston shoe and wear plate. Hardened swash plate and trunnion pins provide rugged support for the piston block and associated rotating group components.
Efficiently designed porting reduces noise at all pressure and flow levels for quiet, efficient operation that eliminates the need for noise shrouds. The rugged, cast iron body is thicker at stress points which contributes to quiet operation.
Specifications
Mountings: SAE 2 bolt mountings. SAE 'A', SAE' B', and SAE 'C'
Tandem pump drive capabilities
Capacities: 6, 10, 15, 20 29 GPM @ 1750 RPM
Displacements: .88, 1.26, 2.09, 2.62, and 3.78 cubic inches per revolution
Pressure Compensation Ranges: 200 to 3500 PSI continuous duty, up to 4000 PSI intermittent duty
Recommended Fluids:
Petroleum based fluids are recommended. Fluids should be designated by the fluid manufacturer for use in hydraulic systems. Fluids should contain inhibitors to prevent rust and oxidation and should contain anti-wear, anti-foam, and deaerating agents. For other fluid types, please contact your Continental Hydraulics representative.
Recommended Operating Viscosity
Petroleum based fluids:
Optimum - 140 sus (30 Cst.)
Continuous Minimum - 60 sus (10 Cst.)
Continuous Maximum - 750 sus (160 Cst.)
Max cold start up 7500 SUS
Fluid Cleanliness - ISO 18-16-13 is recommended
Operating Temperature - Operating temperature is determined by the viscosity characteristics of the fluid used. Control operating temperature as needed to assure that fluid viscosity is within acceptable limits. Because high temperatures degrade seals, reduce the service life of the fluid, and create scalding hazards, fluid temperatures should not exceed 180° F. (82° C.) at the case drain.
Mounting Position - Unrestricted. However, horizontal mounting is preferred.
Relief valves are recommended for all applications to help protect personnel and the system from potentially damaging overloads
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THE OMEGA N PUMPS
Compact high pressure reciprocating piston pump, for reduced investment costs but manufactured according to highest Cryomec standards:
Available flow rates: 1 to 70 L/min
Pressure up to 400 bar
Available for all cryogenic gases including LNG
Low operation cost
Large scale of feature with numerous options
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