Gear pumps for agricultural machines

Gear pumps are positive displacement pumps commonly used in a variety of industrial applications to transfer fluids. Because of their efficiency, reliability and precise fluid delivery, gear pumps are trusted for a wide variety of applications. Gear pumps primarily consist of two intermeshing metal gears housed in a casing. When power is applied to gear pumps, the intermeshing gears rotate in opposite directions, creating vacuum chambers between the gears and the housing, allowing fluid to enter and exit the pump.

The gear pump operates when fluid is drawn into the vacuum created by the intermeshing gears as they rotate. The fluid is then carried to the discharge port as the previously vacuumed portion of the gear seals the fluid between the gear and the housing. Because the gears are precision machined, they do not allow backflow and the continued meshing ensures that the fluid is pushed toward the outlet. This displacement mechanism provides a steady flow of fluid with minimal pulsation.

Gear pumps offer several advantages over other types of pumps:

Efficiency
High volumetric efficiency is the strongest feature of gear pumps. Regardless of pressure fluctuations, the flow rate is constant. With no backflow, the positive displacement design ensures constant performance.
Compact Size
Gear pumps are relatively smaller than other pumps, which allows them to be installed in machines where space is limited or where customers want a compact design. This also makes it easier to integrate gear pumps into existing systems.
Self-Priming
Gear pumps are capable of self-priming, which means that fluid can be drawn into the pump without additional external priming mechanisms.
Wide Range of Fluid Compatibility
From abrasive materials to viscous fluids, gear pumps can handle a wide range of fluids. Because of the variety offered, the industry limit for gear pumps is not particularly high.
Reliable Operation
With minimalist design, few moving parts and robust construction, gear pumps offer reliable operation. The pump is also easier to service and maintain, resulting in less downtime and overall machine efficiency.

Despite their many advantages, gear pumps also have some limitations

Limited Pressure Capability
The pressure range for gear pumps is limited and high pressure use is not always possible. It is possible to manufacture gear pumps for use in high pressure environments, but these pumps are noisy and require constant monitoring.
Susceptible to Damage from Contaminants
Solid particles in the fluid being pumped can wear the pump’s gears and damage the pump’s overall displacement.
Noise and Vibration:
Gear pumps are relatively noisy. This can be mitigated to some extent by material and design, but the noise can still be significant and annoying over long periods of use.
Limited Speed Range
Speed is one of the biggest limiting factors for gear pumps because the precision of the gears and the tolerances within the housing limit the speeds at which the pump can be used. High speed means faster gear wear.

Despite the limitations, there are more and more industries that use gear pumps in their machinery for their pumping needs. One such industry that relies heavily on pumping fluids, lubricants and power transmission is the agricultural industry. The precision and reliability of gear pumps make them ideal for use in agricultural machinery. Some of the agricultural machines that use gear pumps are listed below;

Tractors
On tractors, gear pumps are used to power hydraulic systems that operate implements such as front loaders, backhoes and hydraulic rams. The pumps provide the necessary hydraulic pressure to control the implements and ensure efficient operation.
Sprayers
Whether mounted or boom-mounted, sprayers use gear pumps to provide precise and consistent fluid delivery. The constant flow of the gear pump provides the necessary volume and pressure to the spray nozzles, ensuring an even distribution of chemicals across the field.
Harvesters
Harvesting equipment, including combines and forage harvesters, rely on gear pumps to power hydraulic systems that control the movement of knives, conveyors and other components. They also facilitate lubrication of critical parts.
Irrigation Systems
Similar to sprayers, gear pumps move water from the source to irrigated fields. Gear pumps use uniform flow and pressure to distribute water evenly throughout the system, ensuring that crops are not over- or under-watered.
Seeders
Seeders, as the name suggests, are agricultural machines that optimize the process of seeding a field. Seeders use gear pumps to power hydraulic units, which in turn allow for precise and consistent seed placement. Depth control, seed delivery and even primary irrigation can be controlled with gear pumps.
Fertilizer Spreaders
Unlike seeders, fertilizer spreaders are not precision machines. However, gear pumps are used to power the hydraulic system that drives either the conveyor or roller system, as well as the moving floors on some machines, to spread fertilizer over the field.
Feed Mixers
In feed mixers, gear pumps power the hydraulic system that transports, mixes and dispenses the feed mix used in livestock production. The pumps powering the hydraulic system ensure consistent mixing and even distribution of nutrients for healthy animal nutrition.

At Eurobalt, we have been meeting the needs of our customers for hydraulic pumps for some time now. One of our areas of expertise is gear pumps, and we have seen a lot of movement in the market for gear pumps used in agricultural machinery. And because of several key factors, we are the ideal manufacturer for your hydraulic pump needs. Here are a few reasons why we are the best choice for your gear pump needs:

Experience and Expertise
Our years of experience working in the agricultural sector bodes well for customers looking for expertise solution. Throughout the years we have worked with all types of clients’ construction all kinds of variation of different machines which allows us to understand and provide the solution the clients are looking for. Our engineering and manufacturing team have cumulative experience in gear pump manufacturing which makes us ideal for your manufacturing needs.
High Operating Pressure and Displacement Range
Our gear pumps offer a maximum operating pressure of up to 35 MPa, which is on the higher end for gear pumps and offer wide range of application in agricultural machinery. The wide displacement range of 4 to 120 cc/rev ensures versatility and suitability for various fluid flow requirements, allowing customers a range of customization ability where they can fine tune their needs.
Robust Construction
We constructs our gear pumps using high-strength cast iron bodies. Durability and longevity are key aspects when choosing a manufacturer for your pumping needs and with our choice of material, the most robust of agricultural environment will be little match for our pumps. Then the inner working of the pump is made by precision carburizing and quenching of the gears further enhance their strength and longevity, guaranteeing reliable performance even in challenging environments.
Factory Tested and Customization Options
Our commitment to quality is exemplified by our rigorous factory testing process. All the pumps are 100% factory tested before they are sent out for delivery, we make sure there are no issues in the running as well as functioning of the pump. By the time the pump reaches the customer, it is fully functional and all the customer has to do is attach and go to work.
Additionally
we offer the advantage of customization of mounting sizes and oil ports, allowing seamlessly integration of gear pumps into customer’s specific agricultural machinery.

We are a customer-first company where your satisfaction is our primary goal. When you purchase one of our pumps, we provide after sales service, engineering consultation and product warranty so you have nothing to worry about. Our customer-centric approach is why customers come back to us for advice on their entire hydraulic system. This trust and confidence is why we continue our efforts to reach more customers and provide them with the solutions they need in their machine. In the meantime, if you are looking for a reliable gear pump supplier, please contact us.