The Gear pump is designed to deliver a constant flow rate regardless of moderate changes in system pressure. The close clearances between gears and casing reduce internal leakage and keep efficiency high. Because of this, it performs well with thick and lubricating fluids.

The Gear pump market size is projected to reach US$ 15.4 billion by 2031 from US$ 11.22 billion in 2024. The market is expected to register a CAGR of 4.9% during 2025-2031. Rising demand for energy-efficient solutions is likely to bring new key trends in the market in the coming years.

How These Pumps Work

A gear pump is a positive displacement pump that moves fluids through interlocking gears. Unlike centrifugal pumps, which rely on an impeller, gear pumps trap fluid between the teeth of rotating gears and the pump casing. This delivers a continuous and exact flow rate. The two types are external and internal. Both provide consistent flow, operate at high pressure, and handle fluids ranging from low-viscosity solvents to high-viscosity oils and adhesives. Their basic design also means less part wear and easier maintenance.

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What Is Driving Demand

Gear pumps are known for dependability and efficiency, with volumetric efficiencies that often surpass 90% across a wide range of viscosity values. The chemical and petrochemical industries are growing worldwide and are prominent end users.

Oil and gas activity is another strong driver. The IEA Oil Market Report published in 2024 notes that global oil demand is set to reach 103.9 mb/d in 2025, with refinery throughputs peaking at 84.3 mb/d in December 2025. Manufacturers are also pursuing mergers and acquisitions to broaden their portfolios. Technological advancements that improve efficiency, reliability and adaptability should further support growth.

Segment Performance

External gear pumps held the larger share of the market in 2024, accounting for 74.1%. By pressure range, the 100 to 300 bar segment held the largest share, while the up to 100 bar segment is expected to grow fastest at a CAGR of 5.2%. By end-use industry, industrial and material handling machines led with a 24.6% share in 2024. Other industries covered include food and beverage, chemical and petrochemical, oil and gas, automotive, water treatment and aerospace.

Regional Dynamics

North America, Europe and Asia Pacific are the major regions witnessing significant growth.

• North America: New electric car registrations in the US reached 1.4 million in 2023, a rise of more than 40% over 2022. The region’s natural gas industry is also expanding.
• Europe: The oil and gas industry is growing, and the water and wastewater sector is gaining traction at a fast pace.
• Asia Pacific: The region is expected to record the highest CAGR, at 5.4%. China’s commercial vehicle sales rose 22% to 4.03 million units in 2023, and Japan sold 4.78 million new cars, up 13.8% year-on-year.
• Middle East and Africa: Saudi Aramco announced seven new oil and gas discoveries in July 2024, and companies are expanding their production plants.

Key Players

The competitive landscape features these companies:

• Jihostroj a.s.
• Bosch Rexroth AG
• Danfoss AS
• Bucher Hydraulics GmbH
• Parker Hannifin Corp
• Kawasaki Heavy Industries Ltd
• CASAPPA S.p.A.
• Bailey International LLC
• HYDAC International GmbH
• Eaton Corp Plc
• Marzocchi Pompe S.p.A.
• KYB Corporation
• Viking Pump, Inc.
• Gorman-Rupp Pumps

Recent Developments

In June 2024, Shimadzu Corporation launched the MLP2 Series, an environment-friendly high-pressure gear pump. It raises the rated pressure from 24.5 MPa to 25 MPa and removes the plating process on the cast iron body to improve durability. In March 2024, Marzocchi Pompe S.p.A. finalized the purchase of a new 2,500 sq. m. property for €1,050,000 to enlarge its complex in Zola Predosa.

Future Outlook

The gear pump market is set for steady expansion through 2031, supported by its projected rise to US$ 15.4 billion. Future trends include the integration of smart technology, modular designs and advanced sustainable technologies. As industries such as oil and gas, petrochemicals, automotive and water treatment keep growing, manufacturers that focus on efficiency, reliability and strategic acquisitions are well placed to capture new opportunities.

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