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External adjustable pressure relief valve (behind sight glass)
Lower air consumption and operating costs
Return-to-tank port for use in remote valve applications
Internal pressure relief valve provides overload protection
High efficiency cast aluminium air motor
Air pendant for remote control operation
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The Enerpac ZA4 - The Next Generation in Air Powered Hydraulic Pumps
Introducing the ZA4-series, Enerpac’s newest high-pressure hydraulic air-driven pump designed for in-plant, industrial applications and medium to large construction projects. The new ZA4 pump features the Z-Class high efficiency pump design—a design known for its higher oil flow and bypass pressure. Whether powering a cylinder or operating a tool, the ZA’s industry-leading hydraulic flow at 700 bar will improve productivity in any application. And, because of their ATEX 95 certification, the Enerpac ZA Pumps are safe for use in environments such as refinery, petro-chemical and oil & gas processing.
Reservoirs come in 4 to 40 litres capacities. A sight gauge on the 4 and 8 litres models and a level gauge on the larger reservoirs allow quick and easy oil level monitoring. The manual control valves on ZA4-series pumps come with built-in user adjustable pressure relief valve. Standard models are available to fit most applications and custom configurations, when required, are available from an extensive ordering matrix.
The optional heat exchanger warms exhaust air to prevent freezing and cools the hydraulic oil.
Enerpac ZA Series Air Hydraulic Pumps—tough, dependable and innovative.
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Hydratron Air Operated Hydraulic Pumps are capable of generating output pressures of up to 45,800 PSI ( 3,160 Bar ) when supplied with just 100 PSI ( 7 Bar ) air pressure. There are 4 model ranges offering flows of up to 7 gpm ( 31.7 Ltr per min ).
These pumps will maintain pressure within a system indefinitely without consuming power or generating heat plus their output pressure can be infinitely varied by simply regulating the driving air pressure.
These pumps are ideal for pressure testing, chemical injection and for hydraulic power applications. Standard models are suitable for oil or water service having wetted parts manufactured from stainless steel and aluminium bronze. Options include all stainless steel wetted parts for pumping more aggressive chemicals with isolation chambers which keep the pneumatic and hydraulic sections of the pumps completely separate. This is particularly desirable when pumping hazardous fluids.
Pumps can be supplied individually or mounted in Power Pack form in which case they are mounted within metal frames complete with reservoirs, all necessary air controls, output pressure gauges and pressure release valves.
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- Air Drive line lubrication not required.
- Self-priming for immediate operation.
- Compatible with all hydraulic fluids, plain water, distilled &
deionized water, solvents, mild chemicals and most liquefied
aerosol type gases.
- Range of models to provide up to 80,000 psi intermittent
output pressure.
- Stainless steel hydraulic body, check valves, and trim are
standard, except -4 and -7 models.
- Alternative gases that can drive the pump include nitrogen,
vapor from liquefied gas, pipeline natural gas and sour
natural gas with proper modifications.
- Offer a wide range of standard modifications.
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SKF Air-driven Hydraulic Pumps, THAP series
30, 150, 300 and 400 MPa (4 350, 21 750, 43 500 and 58 000 psi)
The THAP Air-driven Hydraulic Pumps are available in four different pressure versions. They can be used for mounting OK Couplings, large pressure joints such as bearings, flywheels, couplings and railway wheels. The pumps consist of a high-pressure hydraulic pump, driven by an air piston.
The units are supplied in a sturdy case including oil suction and return hoses with quick connect couplings. The pumps can also be supplied in complete sets, which consists of pump, pressure gauge, adapter block, highpressure pipe and connection nipples.
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PP - Air/hydraulic pumps (series 1000)
PP-1000 air/hydraulic pumps are very compact one-stage pumps that work in any position, horizontally or vertically thanks to a rubber bladder built in to the tank. The pumps can be operated by hand or foot.
• High oil flow.
• Easy to fill and check oil level.
• Safety valve prevents overfilling the tank.
• Return oil line can be connected to oil filler hole.
PP70-1000 - for those pumps we recommend gauge AMT801 and gauge adapter AVM204. Other combinations of gauge and gauge adapter are however possible.
PP70-1000/LS201, PP70-1000/LS250 - PP70-1000 pumps are available in a pre-mounted version with 2 m or 2,5 m hydraulic hose, quick coupling (AQI7) and swivel coupling (ASE10).
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Mini hydraulic pumps model PAY
With compressed air driven motor 700 bar
These mini-pumps are driven by an air-powered motor and can be connected to any supply source of compressed air. These compact low-cost pumps can operate all single-acting or double-acting hydraulic cylinders up to a max. operating pressure of 700 bar.
Features
- Pedal in neutral position - motor stands still, cylinder stands, pressure is held.
- Pedal depressed - motor starts, cylinder advances, pressure is built-up.
- Pedal pushed forward - motor stands still, pressure is released, cylinder retracts.
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The air-hydraulic BELL units are meant to operate single and double acting cylinders depending on the versions. This type of pump can be applied in all the hydraulic applications, especially in those which require high performances and pressures, and in all cases in which the oil flow must be modulated and controlled.
There are many applications, in the industiial field, such as stirrup, presses, extractors, pullers, hose fitting, bead breakers, clamping equipments, as well as in the automotive field for example car and motorbike lifts, pulling bars for bodyworks straightening benches.
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Gear pumps and motors built in three pieces with an extruded body in high resistance aluminium alloy.
The wide choice of shafts, flanges and ports, in compliance with all international standards (SAE, DIN and EUROPEAN) allow for their use in an infinite variety of applications.
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Features
- High efficiency gear profiles
- 12 tooth low noise and pressure ripple gear design
- Continuous operating pressures to 276 bar [4000 psi]
- Rated operating speeds to 4000 rpm
- 10 displacements available from 5.3cc [.32cid] to 33.4cc [2.04cid]
- Input shaft torques up to 160Nm (1418 lb-in)
- SAE, DIN, & ISO flange, shaft, and porting styles
- Field reversibility
- Built to ISO 9001 standards
Customizing Options
- Single and multiple section pumps
- Isolated sections for applications requiring separate fluids or reservoirs
- Common and separate inlets
- Relief valve and priority control valve options
- Auxiliary mounting features
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With our Aluminium Gear Pumps and Motors we can offer a complete product range for a wide arrenge of applications
High efficiency
Cont. pressure up to 275 bar admissible
Low noise
Wide choice of integrated valves
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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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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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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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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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Gear pumps made of cast iron in two pieces.
A rigid and compact structure that makes it possible to incorporate a number of functions in a limited space.
Wide range of displacements: from 0.30 in³/rev (4,95 cm³/rev) to 9.20 in³/rev (150,79 cm³/rev) available in groups 20, 30 and 40
Max. peak pressure up to 4785 psi (330 bar)
Max. speed up to 4000 min-1
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Single or Multiple configurations
Flows to 29 gpm @ 2400 rpm with pressures to 3000 psi
Motors up to & over 40hp
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With our Cast Iron Gear Pumps and Motors we can offer a large variety of robust motors for high-demanding applications.
Patented 2-piece modular design
Volumetric efficiency up to 98 %
Cont. pressure up to 310 bar admissible
Low noise
Wide choice of integrated valves
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External gear units are classic hydraulic units and come in the form of pumps and motors. Individual pumps, multiple pumps and lownoise SILENCE versions in seven different series open up a virtually unlimited range of possible uses.
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Type T Pump
With the series type T we offer a program with several variants and constructions for the transport of almost all pumpable media.
It can be used up to maximum rotational speeds of 1500 rpm at pressures up to 16 bar. The rotational speed is basically determined by the viscosity or lubricity of the pumped medium.
At viscosities in excess of 10000 mm²/s the medium to be pumped should flow to the pump. In case of suction heights of more than 7 m LC and admission pressures in excess of 2 bar please contact our engineering department as larger piping cross sections will be required!
The pumps are driven by electric motors, backgeared motors, belt drives adjustable gear motors, or similar.
All pumps can operate with clockwise or counter-clockwise sense of rotation.
- pulsation-free pumping delivery
- independent of sense of rotation
- sturdy construction
- easy mounting
- wide selection of materials
- several sealing variants
- for packings with suction bore
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PFG are fixed displacement external gear pumps, axial hydraulic balancing, simple and sturdy construction, lo noise level. Suitable for hydraulic oils or synthetic fluids having similar lubricating characteristics
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External gear units are classic hydraulic units and come in the form of pumps and motors. Individual pumps, multiple pumps and lownoise SILENCE versions in seven different series open up a virtually unlimited range of possible uses.
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The axial piston fixed pump AHP PF - 20 is designed for various applications in open hydraulic circuits. At the figure No. 2 is drawn cross sectional view of the piston pump.
The shaft is supported by two tapered roller bearing. Design of the end of input shaft you can find on the page 16 of this catalogue. Hydraulic pump is closed by the front and rear cover. The rear cover also serves for connection of the high-pressure and suction ports. The angle of the swash plate is fixed on 18°.
Fig. 2: Cross sectional view of fixed pump.
Flange with centering diameter according to the standard SAE is bolted to the front cover. 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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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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Description and Applications:
The PGH is a pump with internal teeth for circuits high pressure. It proved its impact resistance and its endurance in the many applications of presses (stamping, shearing, punching, etc)
The optimized design of the series 3X brings the following innovations:
Increase in speeds and maximum pressures, which allows an increase in the transmission of power of +55%
Simplification of the system of combinations for multiple pumps
Pressure tap to simplify the startups and diagnoses it pump
Presence of an eyelet on the casing to facilitate handling
Allowed minimal speed with 200 tr/min to allow a drive variable frequency.
For the applications to high dynamic response and with a view to energy saving, the series 3X is also adapted to the drive by electric servo-motor (<50kW) for functions of control of position or maintains of pressure.
Features/performances:
Cubic capacities: 25 DC with 250cc in two sizes of casing
Pressure rating = 315 bar (25cc with 125cc)
Intermittent Pmax = 350 bar
Number of revolutions: 200tr/min with 3000tr/min
Possibility of operation with not easily flammable fluids type HFC
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Hydraulic pumps
