What is a Gear Hydraulic Pump? Structure and Classification

With a simple structure, convenient assembly and operation, and the ability to withstand heavy loads for a specific duration, gear hydraulic pumps are widely used in hydraulic dock levelers.

To exploit and use this type of hydraulic pump effectively, we need to consider information such as characteristics, capacity, operating principles, and the gear hydraulic pump price list to choose the equipment that best fits your needs and budget. Let’s explore all of this information in the article below!

Understanding Gear Hydraulic Pumps

Before looking into the latest gear hydraulic pump prices, let’s review some characteristics and structures of hydraulic pumps to better understand this device.

What is a Gear Hydraulic Pump?

A gear hydraulic pump is a vital component in systems operated by oil, lubricants, and various types of hydraulic fluids. This device is considered the “heart” of the entire system because if the pump fails, the system will not function, affecting overall productivity.

Currently, there are three types of pumps most commonly used in lifting equipment such as hydraulic lifting tables: gear pumps, vane pumps, and piston pumps. Depending on specific requirements, capacity, and flow rate, customers can choose the most suitable one to install for their power units and systems.

Accordingly, the selling price of gear hydraulic pumps on the market varies significantly between types. Nowadays, gear hydraulic pumps are very popular. We can easily encounter this device in any hydraulic system, from small to large, and from simple to complex scales in industry, handicrafts, and life-serving machinery.

Specially in the logistics industry, the product is applied in many devices such as forklift ramps (dock levelers), making the goods transportation process easier and more efficient, maximizing cost savings for businesses.

See more: Top 5 best 500-ton hydraulic press brands

Structure of a Gear Hydraulic Pump

As the name suggests, a hydraulic pump gear is designed with a network of multiple gears to suction fluid in the fastest and safest way. These gears are manufactured in different shapes, from V-shapes, spirals, and straight teeth to conical shapes.

Generally, the structure of a hydraulic gear pump is quite simple and can withstand short-term overloads. Therefore, gear pumps are increasingly used in many fields.

The structure of a gear hydraulic pump includes the following parts:

• Pump shaft: This is a crucial component that stabilizes the operation of the gear hydraulic pump.
• Pump body: The pump body is manufactured with good load-bearing capacity and high durability.
• Driving gear and driven gear: These parts create movement for the pump. This pair of gears has different sizes, placed eccentrically, rotating in the same direction during operation and around the pump shaft.
• Suction port and discharge port: Similar to other types of pumps, these two ports are responsible for suctioning and discharging the pumped fluid.
• Relief valve: In case of pump overload or excessive flow, the relief valve helps protect the pump for safe use.
• Seals: Play the role of sealing the system when the pump is operating, avoiding impact from external factors.

Popular Types of Gear Hydraulic Pumps

Gear pump systems are classified into different types with their own gear hydraulic pump prices. This helps customers more easily choose a product that suits their requirements. This hydraulic pump device is divided into two main types. Both types of pumps perform the task of creating a stable flow of fluid to push into the pipeline.

Internal Gear Pump

Internal gear pumps have a full structure of parts like a standard hydraulic pump. Outstanding advantages of this type of pump include:

• Small pump size, making it easy to move and install in narrow areas; even using it for machinery lines is very convenient and stable.
• Internal gear pumps have a long lifespan and are less prone to wear over time. During use, you do not need frequent maintenance or repairs.
• Minimal vibration and noise during operation.
• Slow rotation speed but high efficiency and displacement.
• High operating performance, capable of working at high intensity and pressure, so the price will be higher than conventional pumps.

External Gear Pump

External gear pumps are composed of parts such as: 4 bearings supporting the rotor shaft, oil suction pipe, shaft, oil discharge line, driving gear, driven gear, and seals.Similar to the internal model, the external gear pump possesses many outstanding advantages, giving customers absolute confidence.

• The lifespan of this pump type is higher, averaging from 2 – 3 years if used and maintained correctly in combination with cooling products like Hydraulic oil coolers.
• The structure of each part allows for easy cleaning, repair, or maintenance.
• Compact structure makes it convenient for installation and connection. Even when problems occur, they are easier to detect.
• External gear pumps are compatible with most types of hydraulic oils. Therefore, this device is widely used in life with liquids of high thickness and viscosity.
• Diverse sizes, low price, suitable for many types of customers.

Applications of Gear Hydraulic Pumps

In Industry

In industry, gear hydraulic pumps are often used to transfer different layers of oil such as: Grease, wax, lubricating oil, fuel oil, Diesel oil…

When a device is needed to transport hazardous substances, choosing a gear pump is most suitable because of its low cost and stable performance, even when pumping: acids, soda, resin, enamel, adhesives…

Gear hydraulic pumps use rotating gears to suction liquid (usually hydraulic oil) from the reservoir and push it into the system. This process creates pressure in the system, helping to move parts like pistons and cylinders to lift and lower goods. Therefore, the device is widely used in freight elevators using hydraulic systems.

In the Food Industry

In the food industry, mini gear pumps are used to pump: cooking oil, fat, sauce, soy sauce, wine, syrup, fruit juice… serving the processing and production of confectionery, milk, and beverages.

In Daily Life

Gear hydraulic pumps are also widely used in hydraulic power units, presses, tractors, and grinders for fishing boats, peanut oil presses, scrap presses…The applications of gear pumps are very diverse in systems and operating lines using chemicals or hydraulic fluids.

In the Construction Industry

Gear hydraulic pumps provide power for hydraulic drive systems, helping to control cylinders to move buckets and lift materials. This type of pump is commonly used in machines such as excavators, diggers, and unloading lifting tables.

Where to Buy Quality Gear Hydraulic Pumps at Low Prices?

For gear hydraulic pump products, Naltako Industrial Joint Stock Company is always confident in product quality as well as experience in the field of industrial pump solutions, being a leading reputable pump equipment distributor in Vietnam.

With high requirements for quality and customer experience, Naltako always selects imported products from leading reputable industrial pump brands in Europe, America… to ensure operating performance and high durability in industrial environments.

At the same time, we are ready to support industrial pump warranty services with a team of experienced technicians. We commit to supporting customers within 24 hours of receiving feedback. Coming to Naltako, customers will receive many attractive offers with the best prices available today.

Conclusion

Above is a summary of information regarding the characteristics and capacity of gear hydraulic pumps. We hope that with the sharing in this article, you will choose the hydraulic pump equipment that best suits the needs of your unit or business.