ORBIT HYDRAULIC SYSTEM: Hydraulic Pumps: Gear Pump, Vane Pump, Piston Pump India

Hydraulic Pumps: Gear Pump, Vane Pump, Piston Pump Manufacturers & Suppliers Ahmedabad Mumbai Chennai Bangalore Hyderabad Nasik Pune Jaipur Indore Delhi Harayana Noida Kolkata India

Hydraulic pumps are sources of power for many dynamic machines. Hydraulic pumps are capable of pushing large amounts of oil through hydraulic cylinders or hydraulic motors. In this fashion, the pump converts the mechanical energy of the drive (i.e. torque, speed) into hydrostatic energy (i.e. flow, pressure).

Hydraulic pumps operate according to the displacement principle. This involves the existence of mechanically sealed chambers in the pump. Through these chambers, fluid is transported from the inlet (suction port) of the pump to the outlet (pressure port). The sealed chambers ensure that there is no direct connection between the two ports of the pump. As a result, these pumps are very suitable to operate at high system pressures and are ideal for hydraulics.

Different Types of Hydraulic Pumps

Hydraulic pumps are manufactured depending on different functional and hydraulic system requirements, such as operating medium, required range of pressure, type of drive, etc. A large range of design principles and configurations exists behind hydraulic pumps. Consequently, not every pump can fully meet all sets of requirements to an optimum degree. Three different types of hydraulic pumps exist:

Hydraulic Gear Pumps

External gear pump
Internal gear pump
Gear ring pump
Screw spindle pump

Hydraulic Vane Pumps

Single chamber vane pump
Double chamber vane pump

Hydraulic Piston Pumps

Axial piston pump
Radial piston pump

Note: while gear pumps operate with fixed displacement volume, vane and piston pumps may operate with fixed or variable displacement volumes.

Hydraulic Gear Pumps

A gear pump is used in many hydraulic systems. It has few moving parts, works smoothly, and operates very well at pressures up to 250 bar. The displacement chambers are formed between the housing of the pump and the rotating gear wheel (or gear wheels, depending on model).

External Gear Pump

External gear pumps are used in industrial and mobile (e.g. log splitters, lifts) hydraulic applications. Typical applications are lubrication pumps in machine tools, fluid power transfer units and oil pumps in engines. These pumps have some unique features:

Low weight
Relatively high working pressures
Wide range of speeds
Wide temperature and viscosity range (i.e. flexibility)
Low cost

In an external gear pump, only one of the gear wheels is connected to the drive. The other gear wheel rotates in the opposite direction so that the teeth of the rotating gear wheels interlock. With use of a bearing block, the gear wheels are positioned in such a way that they interlock with the minimum clearance. Volume is created between the gear tooth profiles, housing walls and surfaces of the bearing blocks.

Typical parameters are:

Displacement volume: 0.2 to 200 cc
Maximum pressure: up to 300 bar (size dependent)
Speed range: 500 to 6,000 rpm

Internal Gear Pump

Internal gear pumps are primarily used in non-mobile hydraulics (e.g. machines for plastics and machine tools, presses, etc.) and in vehicles that operate in an enclosed space (electric fork-lifts, etc.). The internal gear pump is exceptionally versatile and also capable of handling thick fluids. Key features are:

Low flow pulsation
Low operating noise
High efficiency

In an internal gear pump, the gear rotor is connected to the drive. When the gear rotor and internal gear rotate, volume is created between the gear ring profiles, housing walls and filling piece. The space between the gear tooth profiles increases relatively slowly over an angle of about 120°. This causes operation to be exceptionally quiet with a constant flow.

Typical parameters are:

Displacement volume: 0.5 to 500 cc
Maximum pressure: up to 300 bar (dependent on nominal size)
Speed range: 500 to 3,000 rpm (dependent on nominal size)

Gear Ring Pump

The gear ring pump is primarily used as a pressure lubrication system for machines and combustion engines. They are also used in hydraulic power steering systems.

This pump is often assembled with a high pressure pump, e.g. radial piston pump. The rotors of the gear ring pump can be directly built into the housing of the high pressure pump, which makes it possible to build very compact units. Such small double-pumps are often used for rapid traverse on large presses and tensioning equipment.

The rotor has one tooth less than the inner stator. Planetary movement of the rotor results in compressing and decompressing of the displacement chambers within the housing.

Hydraulic Vane Pumps

The vane pump finds its use in die casting and injection moulding machines in industry, as well as in land and road construction machinery.

Hydraulic vane pumps operate with much lower flow pulsation, i.e. constant flow. As such, vane pumps produce less noise while maintaining a relatively high speed.

Key features of the vane pump:

Low flow pulsation
Very low noise levels
Wide range of speeds
Wide viscosity range

The operating pressure of vane pumps does not normally exceed 175 bar. However, in specially designed vane pumps the operating pressure may go over 200 bar and up to 300 bar. Hydraulic vane pumps are available as single chamber vane pumps or double chamber vane pumps.

Both types use the same parts, i.e. they comprise a rotor and vanes. The vanes may be radially moved within the rotor, and the centrifugal force of the rotor pushes the vanes out to touch the housing. The difference between the two types is in the shape of the stroke ring that limits the stroke movement of the vanes.

Typical parameters are:

Displacement volume: 6 to 640 cc
Maximum pressure: up to 200 bar
Speed range: 500 to 3,000 rpm

Single Chamber Vane Pump

In a single chamber vane pump, the stroke movement of the vanes is limited by a ring with a circular internal track. The position of this so-called stroke ring is off-centre with respect to the rotor, resulting in change of volume in the displacement chambers. The displacement chambers are created by the rotor, two vanes, the internal surface of the ring and the control discs on one side.

In a single chamber vane pump, the system pressure is only on one side of the rotor. This causes a significant load on the bearings. To reduce this load, the forces acting on the rotor must be in balance. This is the reason why double chamber vane pumps were designed, as mentioned below.

Double Chamber Vane Pump

For double chamber vane pumps, the process of filling the chambers (suction) and emptying is in principle the same as for single chamber vane pumps. In this case, however, the stroke ring (i.e. stator) has a double eccentric internal surface. The rotor can be placed in the axis of the stator because of these surfaces, which differentiates them from single chamber vane pumps.

This set up causes each vane to carry out two strokes per rotation of the shaft. All radial loads on the rotor are now neutralized (two pressure ports on each opposite side). The end result is that two pumps have been built together as one. Due to the twin cam forms of the stator, two displacement processes occur per revolution.

The Denison Vane Technology by Parker Hannifin provides us with the best solution in the market of fixed displacement balanced vane pumps. Use our online confiurator tool for the genuine Denison Hydraulics single, double and triple vane pump to select the best vane pump for your hydraulic application.

Variable Displacement Vane Pump

Only the single chamber vane pump is available as a variable displacement volume type. By moving the stator (stroke ring) with an adjustment screw, it is possible to adapt the size of the displacement chambers. When the axis of the rotor is in the centre position of the stroke ring, all formed chambers are of equal size and the outflow of the pump is nil.

Three positioning devices may be used:

Horizontal adjustment screw for the stroke volume: displacement volume is directly determined by the distance between the stroke ring and the rotor of the pump.
Height adjustment screw: this changes the vertical position of the stroke ring which directly affects dynamic response of the pump and noise.
Setting screw for maximum operating pressure: it sets the amount of the spring pre-tensioning that determines the maximum operating pressure.

The outflow of the pump may be controlled and adjusted mechanically (i.e. directly with an adjustment screw on the pump). You can also control the outflow by other means, such as a combination of hydraulic and electrical control.

Hydraulic Piston Pumps

Hydraulic piston pumps can handle large flows at high hydraulic system pressures. Typical applications are mobile and construction equipment, marine auxiliary power, metal forming and stamping, machine tools and oil field equipment.

In these pumps, the pistons accurately slide back and forth inside the cylinders that are part of the hydraulic pump. The sealing properties of the pistons are excellent.

Key features of hydraulic piston pumps are:

Compact size
High power density
Optimum efficiency and reliability
High speed and torque
High operating pressures

Hydraulic piston pumps operate at very high volumetric efficiency levels due to low fluid leakage. The plungers may consist of valves at the suction and pressure ports or with input and output channels. Piston pumps with valves at the ports are better suited to operate at higher system pressures due to better sealing characteristics.

Axial Piston Pump

The design of an axial piston unit is based on two important principles. First, the design of the axial piston pump may be based on the swash plate principle or bent axis design. Secondly, hydraulic system parameters have to be taken into account: whether the usage is to take place in an open or closed loop circuit is of great importance.

Axial Piston Pumps - PV-plus Variable Displacement | Parker Hydraulics

In closed loop circuits, the return line (i.e. the suction line of the pump) is under pressure. This must be incorporated in the design of axial piston units used in closed loop systems. It is also imperative to have a variable displacement volume hydraulic pump in operation in these systems. In fixed displacement volume configuration, the axial piston unit can be used both as pump and as motor.

In bent axis design, the displacement volume is dependent on the swivel angle: the pistons move within the cylinder bores when the shaft rotates. In swash plate design, the rotating pistons are supported by a swash plate; the angle of the swash plate determines the piston stroke.

Typical parameters are:

Displacement vol.: 5 to 1,000 cc
Maximum pressure: up to 450 bar
Speed range: 1,500 to 11,000 rpm

Radial Piston Pump

Radial piston pumps are used in applications that involve high pressures (operating pressures above 400 bar and up to 700 bar), such as presses, machines for processing plastic and machine tools that clamp hydraulics. Radial piston pumps are the only pumps capable of working satisfactorily at such high pressures, even under continuous operation.

Radial piston pumps are available in two different configurations. With eccentric cylinder block, the piston rotates within the rigid external ring. Eccentricity determines the stroke of the pistons. Or, with an eccentric shaft, the rotating eccentric shaft causes radially-oscillating piston movements to be produced. Most models have an odd number of pistons to reduce the flow pulsation.

Typical parameters are:

Displacement volume: 0.5 to 100 cc
Maximum pressure: up to 700 bar (size dependent)
Range of speeds: 1,000 to 3,000 rpm (size dependent)

Variable Displacement Piston Pump

Speed n [rpm] is the mechanical equivalent of the hydrostatic parameter flow Q [L/min], and pressure p [bar] is the hydrostatic equivalent to the mechanical parameter torque τ [Nm]. It is the relation between these variables that allows tuning the pump outflow to hydraulic system (i.e. load) needs.

When you use a pilot-operated, electro-hydraulic controlled pressure or flow regulator, the outflow of the pump depends on system pressure, flow or a combination of both (i.e. power control). The example below illustrates the use of a pressure-controlled hydraulic piston pump.

If the hydraulic system pressure reaches above a predetermined pressure setting, the flow of the pump returns to zero and the system pressure is maintained constant. By doing so, the power lost in the system is low and the energy consumption of the drive system is minimal at maximum pressure.

Note that a combination of flow and pressure regulation permits designing very economic drives (e.g. load sensing).

Hydraulic Motor
- Radial Piston Motors
- Orbital Motors
- Gear Motors
- Axial Piston Motors

Hydraulic Pumps
- Gear Pump
- Axial Piston Pump
- Variable Piston Pump
- Load sensing Pump

Power Packs
- Hydraulic Manufacturing Power Pack
- Dc Power Pack
- Ac Power Pack

Hydraulic Valves
- Solenoid Operated Direction Control Valves
- Hand Operated Direction Control Valves
- Check Valves Line Mounted , Sub Plate Mounted
- Pilot Operated Check Valves Threaded And Sub Plate Mounted
- Pressure Relief Valves Direct Operated
- Pressure Relief Valves Pilot And Solenoid Operated
- Low Noise Relief Valves
- Back Pressure Valves
- Unloading Relief Valves
- Pressure Reducing Valves
- Sequence Valves
- Balance Valves
- Throttle And Check Valves
- Pressure Compensated Flow Control Valves
- Cam Operated Direction Control Valves
- Over Center Valves
- Modular Pressure Control Valves
- Modular Flow Control Valves Pressure Compensated
- Modular Compound Valves
- Modular Direction Control Valves
- Zero Leaque Valves
- Threaded Cartridge Valves
- Propotional Pressure Relief Valves
- Propotional Pressure And Flow Control Valves (PQ BLOCKS )

Mobile Control Valves
- Mobile Control Valve
- Monoblock & Sectional Valves - Solenoid Control
- Sectional Valves With Directional Control
- Mobile Control Valve With Joystick
- Mobile Control Valve Spring Return & Detente Type

Steering & Drive
-Hydraulic Steering Units
-Dc Drive Wheel

Our Product range consists of:

HYDRAULIC MOTOR, ORBITAL, RADIAL PISTON, AXIAL PISTON, GEAR TYPE ETC
HYDRAULIC PUMPS, VARIABLE PISTON, CLOSE LOOP, LOAD SENSING, AXIAL PISTON,GEAR TYPE ETC
HYDRAULIC POWER PACK [CUSTOM MAKE]
HYDRAULIC VALVE / DIRECTIONAL CONTROL VALVE / PRESSURE RELIEF VALVE/ FLOW CONTROL ETC
HYDRAULIC CYLINDERS [AS PER REQUIREMENTS]
PROPORTIONAL VALVES, PRESSURE, FLOW, PRESSURE REDUCING, CLOSE LOOP FEED BACK, PQ BLOCKS.
HYDRAULIC AUTOMATION [UPGRADE YOUR OLD SYSTEM]
DESIGNING OF HYDRAULIC CIRCUIT AND COMPONENT SELECTIONS.
HYDRAULIC CARTRIDGE VALVES.
CLOSE LOOP HYDRAULICS / OPEN LOOP HYDRAULICS.
In sort we have all solution in Hydraulics.
Please check Website for our product catalogue.
So if you required any type of hydraulics please do not hesitate to contact us.

We are engaged in manufacturing , sales , spares , service , supplying Hydraulic motors.Our product range is inclusive of Hydraulic Gear Pump, Hydraulic Pumps, Hydraulic Valves & Pumps, Hydraulic Motor, Hydraulic Ac/Dc Power packs, Hydraulic Power Packs, Hydraulic Cylinders, Hydraulic Radial Piston Motor, Orbital Motor, Solenoid Valves, Propotional Valves, Directional Control Valves,Hydraulic Vane Pumps, Modular Valves, Pressure Compensated Load Sensing Valves, Cartridge Valves, Hydraulic Pilot Control Valves, Hydraulic Mobile Control Valves, Hydraulic sectional valves, Hydraulic MonoBlock Valves, Hydraulic Axial Piston Pumps, Hand Operated Valves, Directional Control Valves, Check Valves Line Mounted & Sub plate Mounted,Pilot Operated Check Valves Threded & Sub plate Mounted, Hydraulic Pressure Relief Valves Direct Operated, Pressure Relief Valves Pilot and Solenoid Operated, Low noise Relief Valves, Back Pressure Valves, Unloading Relief Valves, Pressure Reducing Valves, Hydraulic Sequence Valves, Hydraulic Throttle and Check Valves, Pressure Compensated Flow Control Valves, cam Operated Directional ControlValves, Hydraulic Over Center Valves, Hydraulic Zero Leaque Valves, hydraulic Threaded Cartridge Valves, Propotional Pressure Relief Valves, Hydraulic Propotional Pressure and Flow Control Valves (PQ Blocks ) , Variable Vane Pumps.,etc

Hydraulic Motors, Hydraulic orbital motor, Hydraulic Gear Motor, Hydraulic Close Loop Motor, Hydraulic Ze-roter Motor, Hydraulic Piston Motor , Hydraulic Spline shaft Motor, Hydraulic Keyway shaft Motor, Hydraulic Disc Valve Motor Etc

We are Also Dealing & Replacement Hydraulic Motors Like : Danfoss, Parkar, Eaton, Zihyd, M+S, Intermot, SAI Hydromotor, Sauer Danfoss, Rexroth, Kawasaki Staffa, JMDG Hydraulic Motor, Hydac, Bosch Rexroth, Eaton Vickers, Stauff, Parker, Polyhydron, Yuken, Casappa, Hydroline, Hydax, Verco, Yuci Yuke, Spica, Duplomatic, Atos, Winner, Nachi, Dowty, White, Winde, Bucher, Char-Lynn, Hydrocontrol, Badestnost, Youli, KTC, Sun, Spica, Hydroline, Barnes, Caterpillar, Daikin, Danfoss, Denison, Hägglunds, Hawe, Herion, Hydromatik, Komatsu, Linde, Mannesmann Rexroth, Oilgear, Parker-Store, Poclain, Racine, Rollstar, Salami, Sauer, Sauer-Danfoss, Uchida, Duplomatic Etc..

We are dealing Hydraulic Product and service provider of major city in India … Mumbai, Bangalore, Chennai, Ahmedabad, Delhi, Kolkata, Haryana, Gurgaon, Coimbatore, Bhopal, Rajkot, Vapi, Daman, Nagpur, Aurangabad, Mangalore, Jharkhand, Punjab, Gandhidham, Uttrakhand, Orissa, Hyderabad, Bharuch, Ankleshwar, Gujarat, Madhya Pradesh, Jaipur, Rajasthan, New Mumbai, Surat, Baroda, Vadodara, Pune, Chandigarh, Ludhiana, Indore, Goa, Vizag, Vishakhapatnam, Nashik, Ernakulam, Kolhapur, Maharashtra. Andhra Pradesh, Arunachal Pradesh, Assam, Bihar, Chhattisgarh, Goa, Gujarat, Haryana, Himachal Pradesh, Mizoram, Jammu & Kashmir, Jharkhand, Karnataka, Kerala, Manipur, Meghalaya, Nagaland, Orissa, Sikkim, Tamil Nadu, Tripura, Uttar Pradesh, Uttaranchal and West Bengal. Andaman and Nicobar Islands, Chandigarh, Dadra and Nagar Haveli, Lakshadweep and Pondicherry, Umbergaon, Silvasa, Mehsana, Lucknow. Kanpur, Thane, Bhopal, Visakhapatnam, Patna, Bihar, Ghaziabad, Agra, Faridabad, Meerut, Vasai-Virar, Varanasi, Dhanbad, Amritsar, Navi Mumbai, Allahabad, Ranchi, West Bengal, Jabalpur, Gwalior, Vijayawada, Jodhpur , Madurai, Raipur, Chhattisgarh, Kota, Guwahati, Solapur, Hubballi-Dharwad, Bareilly, Moradabad, Mysore, Jalandhar, Tiruchirappalli, Bhubaneswar, Trivandrum (Thiruvananthapuram), Bhiwandi, Saharanpur, Gorakhpur, Guntur, Bikaner, Amravati, Noida, Jamshedpur, Bhilai, Cuttack, Firozabad, Kochi (Cochin), Dehradun, Asansol, Nanded, Kolhapur, Ajmer, Jamnagar, Siliguri, Jhansi, Sangli-Miraj , Belgaum, Mangalore, Tirunelveli, Jalgaon, Udaipur, Akola, Bokaro, Bellary, Patiala, Agartala, Dhule, Rohtak, Bhilwara, Ahmednagar, Thrissur, Hisar, Panipat, Karnal, Bathinda, Rourkela, Puducherry, Umbergaon, Silvasa, Mehsana

Contact Details:

Vishal Pipavat

Call Us

Ahmedabad Gujarat India : 09998789116

Mumbai Maharashtra India : 09769069875

E-mail : hydraulicmotor@gmail.com

For More Details Visit Website:

ORBIT HYDRAULIC SYSTEM