Gerotor Pumps – Compact, Quiet & Efficient Low-Pressure Flow
Techknow Engineering Enterprise is a hydraulic gerotor pump supplier for machine builders, maintenance teams and system integrators across India. A gerotor pump is a compact positive displacement pump built around an inner and outer rotor, valued for very low noise, smooth delivery and excellent suction behaviour.
The hydraulic gerotor pump range we supply is designed for low-pressure duty — up to 15 bar with flow from 10 to 150 lpm — making it ideal for lubrication, cooling and filtration circuits, and as an auxiliary pump alongside higher-pressure units.
As an Authorized HYDAC Distributor and a supplier for leading pump brands, we help you select the right gerotor unit for a new machine or source an equivalent replacement — backed by 14+ years of hydraulic experience and pan-India delivery.
Gerotor Pumps for Lubrication, Cooling & Filtration Circuits
Compact low-pressure pumps that run quietly and draw oil reliably, even in tight installations.
Not every circuit needs high pressure. Lubrication systems, cooling loops, off-line filtration units and pilot or charge circuits need a steady, quiet flow at low pressure — exactly where a hydraulic gerotor pump performs best.
Why Choose Gerotor Technology?
The rotor geometry divides the oil into sealed chambers that open and close gradually, so the pump delivers smooth, low-pulsation flow with very little noise — ideal for indoor machinery and noise-sensitive applications.
Its compact, lightweight construction fits easily onto gearboxes, machine frames and small power units.
Good suction behaviour and low energy consumption keep running costs down in circuits that operate continuously.
Gerotor units can also be combined with axial piston pumps, vane pumps and internal gear pumps, so one drive can feed both a working circuit and a low-pressure cooling or lubrication circuit.
How Gerotor Pumps Work
The name comes from "generated rotor". An inner rotor with external lobes turns inside an outer rotor that has one more internal lobe, and the two rotate on offset centres. As they turn, the spaces between the lobes grow on the inlet side and draw oil in, then shrink on the outlet side and push it out.
Because every lobe stays in contact with the outer rotor, no separate crescent seal is needed — which keeps the design simple, compact and quiet.
Selecting the Right Gerotor Unit
Start with the flow needed and the drive speed to find the displacement. Then confirm that the maximum circuit pressure stays within the pump rating, check the direction of rotation, fluid viscosity range, mounting and port connections.
Our team checks these points before quoting and can propose a combined assembly if you also need a higher-pressure pump on the same drive.
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Authorized HYDAC Distributor in India
Techknow Engineering is an Authorized Distributor for HYDAC in India — supplying genuine HYDAC hydraulic pumps backed by OEM specifications and manufacturer support. Techknow is a hydraulic gerotor pump supplier and also a distributor and supplier for Rexroth, Parker, Yuken, Eaton-Vickers, Dowty, Polyhydron and Beiri Hawe hydraulic pumps — one reliable source for gerotor pumps and the rest of your hydraulic system.
Gerotor Specifications at a Glance.
Ratings vary by series and size — our team confirms the figures for your exact selection.
Operating Pressure
Maximum operating pressure of 15 bar, suited to lubrication, cooling, filtration and auxiliary circuits.
Flow Rate Range
Flow from 10 to 150 lpm depending on size, delivered with very low pulsation for stable circuit conditions.
Quiet Operation
Very low operating noise makes gerotor units ideal for sensitive and indoor applications.
Suction Behaviour
Excellent suction behaviour helps the pump draw oil reliably for smooth, uninterrupted operation.
Efficiency
Compact, lightweight design with high efficiency and low energy consumption for continuous-duty circuits.
Integration
Can be combined with axial piston, vane and internal gear pumps on a common drive to save space.
Gerotor Pumps Powering Industries Across India
Major industries rely on Techknow as their hydraulic gerotor pump supplier when they need quiet, dependable lubrication and cooling flow for uninterrupted performance.
Rolling, Pressing & Casting
Turbine Control & Emergency Backup
Turbine Governing & Dam Gates
Pitch Control & Braking Systems
Excavators, Cranes & Earthmovers
Press Shop, Body Shop & Assembly
Steering & Deck Machinery
Pulp Processing & Paper Production
Crushers, Kilns & Material Handling
Injection & Blow Moulding
Pressure Stabilization & Shutdown
Valve Actuation & Pressure Control
Why Industries Choose Us.
More than just a supplier — a partner who understands your system as well as you do.
14+ Years of Expertise
Hands-on experience with industrial and mobile hydraulics means faster, more accurate pump selection for your circuit.
Trusted Global Brands
We're an Authorized HYDAC Distributor, and a distributor and supplier for Rexroth, Parker, Yuken, Eaton-Vickers, Dowty, Polyhydron and Beiri Hawe.
Pan-India Delivery
From Mumbai to Delhi and Chennai to Gujarat, we deliver gerotor pumps and spares to plants and OEMs across India.
Expert Technical Guidance
We check flow, pressure, rotation, viscosity and mounting before we quote, so the pump fits first time.
Obsolete Pump Replacement
Share the nameplate of an old gerotor unit and we will propose an equivalent that matches your mounting.
Genuine Products
Every pump we supply comes from the original manufacturer with its documentation, so you know exactly what is installed.
Where Gerotor Pumps Fit Best
Typical low-pressure duties for gerotor pumps in industrial and mobile machinery.
Gerotor Pumps for Lubrication Circuits
Gearboxes, bearings and machine slideways need a steady supply of oil at low pressure. A gerotor unit delivers that flow smoothly and quietly, and its good suction behaviour helps it draw oil reliably from the reservoir.
Compact dimensions make it easy to mount directly on a gearbox or machine frame.
Key Features
- Maximum operating pressure: 15 bar
- Flow rate range: 10 to 150 lpm
- Very low operating noise
- Excellent suction behaviour
Cooling & Off-Line Filtration Loops
Many hydraulic systems use a separate low-pressure loop to pass oil through a cooler and a filter continuously, independent of the main working pump. A hydraulic gerotor pump is well suited to this duty thanks to its low energy use and steady flow.
Pair it with our oil cooling systems and hydraulic oil filters to keep oil temperature and cleanliness under control.
Auxiliary & Combined Pump Assemblies
On machines such as presses, plastic processing machines and machine tools, a gerotor unit is often mounted behind a main axial piston, vane or internal gear pump. One motor then drives both the high-pressure working circuit and a low-pressure cooling, lubrication or filtration circuit.
Tell us the flow and pressure needed in each circuit, and our team will propose a suitable combination from the brands we supply.
Installation & Start-Up Tips
Fill the pump and suction line with clean oil before the first start, and confirm the direction of rotation. Keep suction lines short and generously sized so the pump fills easily, especially with thicker oils at low temperature.
Fit a relief valve to protect the low-pressure circuit — the pump delivers its full flow regardless of load, and its pressure rating must not be exceeded.
Maintenance & Service Life
Clean oil keeps the rotor tips and housing in good condition, so use suitable suction filters and change filter elements on schedule.
Rising noise or falling flow are early signs of wear. With a hydraulic gerotor pump supplier close at hand, a replacement can be sourced before it affects lubrication or cooling on your machine.
Why Choose Techknow as Your Hydraulic Gerotor Pump Supplier?
What Our Clients Say
Trusted by engineers and procurement heads across India's leading industries
FAQ'S
It is a positive displacement pump with an inner rotor turning inside an outer rotor that has one more tooth. The two rotors run on offset centres, so the chambers between their lobes grow on the inlet side to draw oil in and shrink on the outlet side to push it out, giving a smooth, low-pulsation flow.
The gerotor range we supply is designed for low-pressure duty, with a maximum operating pressure of 15 bar and flow from 10 to 150 lpm depending on size. For higher working pressures, a gear, vane or piston pump is the right choice.
Gerotor pumps are used in low-pressure circuits such as lubrication, cooling and filtration loops, and as auxiliary pumps on industrial and mobile machinery. Their compact size, very low noise and good suction behaviour suit automotive, mobile and industrial equipment.
No. The pump converts shaft rotation into oil flow, while a gerotor or orbital motor uses pressurised oil to produce rotation and torque. They share a similar rotor principle but are built and selected for different jobs, so always confirm which one your machine needs.
Both use an inner gear running inside an outer ring, but a gerotor design uses rounded lobes where the inner rotor has one fewer tooth than the outer rotor, with no crescent seal between them. This gives a very compact, quiet unit for low-pressure duty, while internal gear pumps are built for much higher working pressures.
Yes. Techknow is a hydraulic gerotor pump supplier and an Authorized HYDAC Distributor for HYDAC products, and also supplies hydraulic pumps from Rexroth, Parker, Yuken, Eaton-Vickers, Dowty, Polyhydron and Beiri Hawe. Share your requirement and we will propose a suitable pump.
Share the required flow, maximum pressure, drive speed, direction of rotation, fluid type and viscosity, mounting and port details, and whether the pump will be combined with another pump. For a replacement, a photo of the nameplate is very helpful.
Looking for a Hydraulic Gerotor Pump Supplier?
Share your flow, pressure, speed and mounting details with Techknow Engineering for expert guidance and a quotation for the right gerotor unit.
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