APO RESEARCH · REPORT
Internal Gear Pumps
Internal gear pumps use an inner gear meshing with an internally toothed outer gear. Liquid moves around the casing in the spaces between teeth.

Product & engineering
Understand the product.
The internal gear pump is non-pulsing, self-priming, and can run dry for short periods. They're also bi-rotational, meaning that the same pump can be used to load and unload vessels. Because internal gear pumps have only two moving parts, they are reliable, simple to operate, and easy to maintain.
Viscosity affects filling, leakage and required torque. The positive-displacement mechanism requires an accepted pressure-limiting arrangement. Gear geometry and clearances influence performance as the fluid and temperature change.
What turns activity into demand
A pump selected for one liquid can behave differently with a thinner or colder product. Compare the fluid condition along with displacement. Separate complete pumps from repair gears, bushings and drive packages. Displacement per revolution and delivered flow differ when slip is significant.
The commercial boundary
Separate complete pumps from repair gears, bushings and drive packages. Displacement per revolution and delivered flow differ when slip is significant.
Technical reading
Selected research
Industry Growth & Trends
Global Internal Gear Pumps Industry Growth and Trends Forecast to 2032
Market perspective
The internal gear pump is non-pulsing, self-priming, and can run dry for short periods. They're also bi-rotational, meaning that the same pump can be used to load and unload vessels. Because internal gear pumps have only two moving parts, they are reliable, simple to operate, and easy to maintain.
The major players in global Internal Gear Pumps market include Bosch Rexroth, Sumitomo Precision, Viking Pump, etc. The top 3 players occupy about 30% shares of the global market. China and Europe are main markets, they occupy about 50% of the global market. Cast Iron Pumps is the main type, with a share about 55%. Chemical is the main application, which holds a share about 35%.
Report Scope
Read the full market overview
This report provides a structured, data-driven view of the global Internal Gear Pumps market, combining harmonized quantitative metrics with targeted qualitative insight to support business and growth strategy, market positioning, and capital allocation.
The Internal Gear Pumps market size, estimates, and forecasts are presented in terms of sales volume (K Units) and revenue (US$ million), with 2025 as the base year and historical and forecast data for 2021-2032. The report segments the global Internal Gear Pumps market by Type, Application, region/country, and company, provides regional market sizes at the segment level, profiles the competitive landscape and key players and their market ranks, and reviews technology trends and new product developments relevant to Internal Gear Pumps.
Key Companies & Market Share Insights
This section analyzes the strategies and performance of leading manufacturers in the global Internal Gear Pumps market, including portfolio focus, innovation and product development, mergers and acquisitions, collaborations, and geographic expansion used to sustain or enhance competitive positions. It also summarizes recent corporate developments and key financial indicators and provides global revenue, price, and sales volume data by manufacturer for 2020-2025, enabling benchmarking of scale, pricing, and market share and supporting assessment of market concentration through indicators such as CR5 and CR10.
Internal Gear Pumps Market by Company
Bosch Rexroth
Sumitomo Precision
Viking Pump
Dover
NOP
Voith
Tuthill
Yuken
SPX FLOW
Bucher Hydraulics
Haight Pumps
Hydac International
Daido Machinery
HSP
Shanghai Heshan Pump
Taibang
Chongqing Huanzhou Pumps
Hannuo Pump
Internal Gear Pumps Segment by Type
Steel Pumps
Cast Iron Pumps
Others
Internal Gear Pumps Segment by Application
Chemical
Oil & Gas
Food & Beverage
Others
Internal Gear Pumps Segment by Region
North America
United States
Canada
Mexico
Europe
Germany
France
U.K.
Italy
Russia
Spain
Netherlands
Switzerland
Sweden
Poland
Asia-Pacific
China
Japan
South Korea
India
Australia
Taiwan
Southeast Asia
South America
Brazil
Argentina
Chile
Middle East & Africa
Egypt
South Africa
Israel
Türkiye
GCC Countries
Key Drivers & Barriers
High-impact rendering factors and drivers have been studied in this report to aid the readers to understand the general development. Moreover, the report includes restraints and challenges that may act as stumbling blocks on the way of the players. This will assist the users to be attentive and make informed decisions related to business. Specialists have also laid their focus on the upcoming business prospects.
Reasons to Buy This Report
1. This report will help the readers to understand the competition within the industries and strategies for the competitive environment to enhance the potential profit. The report also focuses on the competitive landscape of the global Internal Gear Pumps market, and introduces in detail the market share, industry ranking, competitor ecosystem, market performance, new product development, operation situation, expansion, and acquisition. etc. of the main players, which helps the readers to identify the main competitors and deeply understand the competition pattern of the market.
2. This report will help stakeholders to understand the global industry status and trends of Internal Gear Pumps and provides them with information on key market drivers, restraints, challenges, and opportunities.
3. This report will help stakeholders to understand competitors better and gain more insights to strengthen their position in their businesses. The competitive landscape section includes the market share and rank (in volume and value), competitor ecosystem, new product development, expansion, and acquisition.
4. This report stays updated with novel technology integration, features, and the latest developments in the market.
5. This report helps stakeholders to gain insights into which regions to target globally.
6. This report helps stakeholders to gain insights into the end-user perception concerning the adoption of Internal Gear Pumps.
7. This report helps stakeholders to identify some of the key players in the market and understand their valuable contribution.
Chapter Outline
Chapter 1: Introduces the study scope of this report, executive summary of market segments by type, market size segments for North America, Europe, Asia Pacific, South America, Middle East & Africa.
Chapter 2: Introduces the market dynamics, latest developments of the market, the driving factors and restrictive factors of the market, the challenges and risks faced by manufacturers in the industry, and the analysis of relevant policies in the industry.
Chapter 3: Detailed analysis of Internal Gear Pumps manufacturers competitive landscape, price, sales, revenue, market share and ranking, latest development plan, merger, and acquisition information, etc.
Chapter 4: Sales, revenue of Internal Gear Pumps in regional level. It provides a quantitative analysis of the market size and development potential of each region and introduces the future development prospects, and market space in the world.
Chapter 5: Introduces market segments by application, market size segment for North America, Europe, Asia Pacific, South America, Middle East & Africa.
Chapter 6: Provides profiles of key players, introducing the basic situation of the main companies in the market in detail, including product sales, revenue, price, gross margin, product introduction, recent development, etc.
Chapter 7, 8, 9, 10 and 11: North America, Europe, Asia Pacific, South America, Middle East & Africa, sales and revenue by country.
Chapter 12: Analysis of industrial chain, key raw materials, manufacturing cost, and market dynamics.
Chapter 13: Concluding Insights of the report.
More report detail
Tables and figures
Scope & coverage.
Types
- Steel Pumps
- Cast Iron Pumps
- Others
Applications
- Chemical
- Oil & Gas
- Food & Beverage
- Others
Companies covered
- Bosch Rexroth
- Sumitomo Precision
- Viking Pump
- Dover
- NOP
- Voith
- Tuthill
- Yuken
- SPX FLOW
- Bucher Hydraulics
- Haight Pumps
- Hydac International
- Daido Machinery
- HSP
- Shanghai Heshan Pump
- Taibang
- Chongqing Huanzhou Pumps
- Hannuo Pump
Inside the report.
1 Market Overview
- 1.1 Product Definition
- 1.2 Global Market Growth Prospects
- 1.2.1 Global Internal Gear Pumps Market Size Estimates and Forecasts (2021-2032)
- 1.2.2 Global Internal Gear Pumps Sales Estimates and Forecasts (2021-2032)
- 1.3 Internal Gear Pumps Market by Type
- 1.3.1 Steel Pumps
- 1.3.2 Cast Iron Pumps
- 1.3.3 Others
- 1.4 Global Internal Gear Pumps Market Size by Type
- 1.4.1 Global Internal Gear Pumps Market Size Overview by Type (2021-2032)
- 1.4.2 Global Internal Gear Pumps Historic Market Size Review by Type (2021-2026)
- 1.4.3 Global Internal Gear Pumps Forecasted Market Size by Type (2027-2032)
- 1.5 Key Regions Market Size by Type
- 1.5.1 North America Internal Gear Pumps Sales Breakdown by Type (2021-2026)
- 1.5.2 Europe Internal Gear Pumps Sales Breakdown by Type (2021-2026)
- 1.5.3 Asia-Pacific Internal Gear Pumps Sales Breakdown by Type (2021-2026)
- 1.5.4 South America Internal Gear Pumps Sales Breakdown by Type (2021-2026)
- 1.5.5 Middle East and Africa Internal Gear Pumps Sales Breakdown by Type (2021-2026)
2 Global Market Dynamics
- 2.1 Internal Gear Pumps Industry Trends
- 2.2 Internal Gear Pumps Industry Drivers
- 2.3 Internal Gear Pumps Industry Opportunities and Challenges
- 2.4 Internal Gear Pumps Industry Restraints
3 Market Competitive Landscape by Company
- 3.1 Global Top Players by Internal Gear Pumps Revenue (2021-2026)
- 3.2 Global Top Players by Internal Gear Pumps Sales (2021-2026)
- 3.3 Global Top Players by Internal Gear Pumps Price (2021-2026)
- 3.4 Global Internal Gear Pumps Industry Company Ranking, 2024 VS 2025 VS 2026
- 3.5 Global Internal Gear Pumps Major Company Production Sites & Headquarters
- 3.6 Global Internal Gear Pumps Company, Product Type & Application
- 3.7 Global Internal Gear Pumps Company Establishment Date
- 3.8 Market Competitive Analysis
- 3.8.1 Global Internal Gear Pumps Market CR5 and HHI
- 3.8.2 Global Top 5 and 10 Internal Gear Pumps Players Market Share by Revenue in 2025
- 3.8.3 2025 Internal Gear Pumps Tier 1, Tier 2, and Tier 3
4 Internal Gear Pumps Regional Status and Outlook
- 4.1 Global Internal Gear Pumps Market Size and CAGR by Region: 2021 VS 2025 VS 2032
- 4.2 Global Internal Gear Pumps Historic Market Size by Region
- 4.2.1 Global Internal Gear Pumps Sales in Volume by Region (2021-2026)
- 4.2.2 Global Internal Gear Pumps Sales in Value by Region (2021-2026)
- 4.2.3 Global Internal Gear Pumps Sales (Volume & Value), Price and Gross Margin (2021-2026)
- 4.3 Global Internal Gear Pumps Forecasted Market Size by Region
- 4.3.1 Global Internal Gear Pumps Sales in Volume by Region (2027-2032)
- 4.3.2 Global Internal Gear Pumps Sales in Value by Region (2027-2032)
- 4.3.3 Global Internal Gear Pumps Sales (Volume & Value), Price and Gross Margin (2027-2032)
5 Internal Gear Pumps by Application
- 5.1 Internal Gear Pumps Market by Application
- 5.1.1 Chemical
- 5.1.2 Oil & Gas
- 5.1.3 Food & Beverage
- 5.1.4 Others
- 5.2 Global Internal Gear Pumps Market Size by Application
- 5.2.1 Global Internal Gear Pumps Market Size Overview by Application (2021-2032)
- 5.2.2 Global Internal Gear Pumps Historic Market Size Review by Application (2021-2026)
- 5.2.3 Global Internal Gear Pumps Forecasted Market Size by Application (2027-2032)
- 5.3 Key Regions Market Size by Application
- 5.3.1 North America Internal Gear Pumps Sales Breakdown by Application (2021-2026)
- 5.3.2 Europe Internal Gear Pumps Sales Breakdown by Application (2021-2026)
- 5.3.3 Asia-Pacific Internal Gear Pumps Sales Breakdown by Application (2021-2026)
- 5.3.4 South America Internal Gear Pumps Sales Breakdown by Application (2021-2026)
- 5.3.5 Middle East and Africa Internal Gear Pumps Sales Breakdown by Application (2021-2026)
6 Company Profiles
- 6.1 Bosch Rexroth
- 6.1.1 Bosch Rexroth Company Information
- 6.1.2 Bosch Rexroth Business Overview
- 6.1.3 Bosch Rexroth Internal Gear Pumps Sales, Revenue and Gross Margin (2021-2026)
- 6.1.4 Bosch Rexroth Internal Gear Pumps Product Portfolio
- 6.1.5 Bosch Rexroth Recent Developments
- 6.2 Sumitomo Precision
- 6.2.1 Sumitomo Precision Company Information
- 6.2.2 Sumitomo Precision Business Overview
- 6.2.3 Sumitomo Precision Internal Gear Pumps Sales, Revenue and Gross Margin (2021-2026)
- 6.2.4 Sumitomo Precision Internal Gear Pumps Product Portfolio
- 6.2.5 Sumitomo Precision Recent Developments
- 6.3 Viking Pump
- 6.3.1 Viking Pump Company Information
- 6.3.2 Viking Pump Business Overview
- 6.3.3 Viking Pump Internal Gear Pumps Sales, Revenue and Gross Margin (2021-2026)
- 6.3.4 Viking Pump Internal Gear Pumps Product Portfolio
- 6.3.5 Viking Pump Recent Developments
- 6.4 Dover
- 6.4.1 Dover Company Information
- 6.4.2 Dover Business Overview
- 6.4.3 Dover Internal Gear Pumps Sales, Revenue and Gross Margin (2021-2026)
- 6.4.4 Dover Internal Gear Pumps Product Portfolio
- 6.4.5 Dover Recent Developments
- 6.5 NOP
- 6.5.1 NOP Company Information
- 6.5.2 NOP Business Overview
- 6.5.3 NOP Internal Gear Pumps Sales, Revenue and Gross Margin (2021-2026)
- 6.5.4 NOP Internal Gear Pumps Product Portfolio
- 6.5.5 NOP Recent Developments
- 6.6 Voith
- 6.6.1 Voith Company Information
- 6.6.2 Voith Business Overview
- 6.6.3 Voith Internal Gear Pumps Sales, Revenue and Gross Margin (2021-2026)
- 6.6.4 Voith Internal Gear Pumps Product Portfolio
- 6.6.5 Voith Recent Developments
- 6.7 Tuthill
- 6.7.1 Tuthill Company Information
- 6.7.2 Tuthill Business Overview
- 6.7.3 Tuthill Internal Gear Pumps Sales, Revenue and Gross Margin (2021-2026)
- 6.7.4 Tuthill Internal Gear Pumps Product Portfolio
- 6.7.5 Tuthill Recent Developments
- 6.8 Yuken
- 6.8.1 Yuken Company Information
- 6.8.2 Yuken Business Overview
- 6.8.3 Yuken Internal Gear Pumps Sales, Revenue and Gross Margin (2021-2026)
- 6.8.4 Yuken Internal Gear Pumps Product Portfolio
- 6.8.5 Yuken Recent Developments
- 6.9 SPX FLOW
- 6.9.1 SPX FLOW Company Information
- 6.9.2 SPX FLOW Business Overview
- 6.9.3 SPX FLOW Internal Gear Pumps Sales, Revenue and Gross Margin (2021-2026)
- 6.9.4 SPX FLOW Internal Gear Pumps Product Portfolio
- 6.9.5 SPX FLOW Recent Developments
- 6.10 Bucher Hydraulics
- 6.10.1 Bucher Hydraulics Company Information
- 6.10.2 Bucher Hydraulics Business Overview
- 6.10.3 Bucher Hydraulics Internal Gear Pumps Sales, Revenue and Gross Margin (2021-2026)
- 6.10.4 Bucher Hydraulics Internal Gear Pumps Product Portfolio
- 6.10.5 Bucher Hydraulics Recent Developments
- 6.11 Haight Pumps
- 6.11.1 Haight Pumps Company Information
- 6.11.2 Haight Pumps Business Overview
- 6.11.3 Haight Pumps Internal Gear Pumps Sales, Revenue and Gross Margin (2021-2026)
- 6.11.4 Haight Pumps Internal Gear Pumps Product Portfolio
- 6.11.5 Haight Pumps Recent Developments
- 6.12 Hydac International
- 6.12.1 Hydac International Company Information
- 6.12.2 Hydac International Business Overview
- 6.12.3 Hydac International Internal Gear Pumps Sales, Revenue and Gross Margin (2021-2026)
- 6.12.4 Hydac International Internal Gear Pumps Product Portfolio
- 6.12.5 Hydac International Recent Developments
- 6.13 Daido Machinery
- 6.13.1 Daido Machinery Company Information
- 6.13.2 Daido Machinery Business Overview
- 6.13.3 Daido Machinery Internal Gear Pumps Sales, Revenue and Gross Margin (2021-2026)
- 6.13.4 Daido Machinery Internal Gear Pumps Product Portfolio
- 6.13.5 Daido Machinery Recent Developments
- 6.14 HSP
- 6.14.1 HSP Company Information
- 6.14.2 HSP Business Overview
- 6.14.3 HSP Internal Gear Pumps Sales, Revenue and Gross Margin (2021-2026)
- 6.14.4 HSP Internal Gear Pumps Product Portfolio
- 6.14.5 HSP Recent Developments
- 6.15 Shanghai Heshan Pump
- 6.15.1 Shanghai Heshan Pump Company Information
- 6.15.2 Shanghai Heshan Pump Business Overview
- 6.15.3 Shanghai Heshan Pump Internal Gear Pumps Sales, Revenue and Gross Margin (2021-2026)
- 6.15.4 Shanghai Heshan Pump Internal Gear Pumps Product Portfolio
- 6.15.5 Shanghai Heshan Pump Recent Developments
- 6.16 Taibang
- 6.16.1 Taibang Company Information
- 6.16.2 Taibang Business Overview
- 6.16.3 Taibang Internal Gear Pumps Sales, Revenue and Gross Margin (2021-2026)
- 6.16.4 Taibang Internal Gear Pumps Product Portfolio
- 6.16.5 Taibang Recent Developments
- 6.17 Chongqing Huanzhou Pumps
- 6.17.1 Chongqing Huanzhou Pumps Company Information
- 6.17.2 Chongqing Huanzhou Pumps Business Overview
- 6.17.3 Chongqing Huanzhou Pumps Internal Gear Pumps Sales, Revenue and Gross Margin (2021-2026)
- 6.17.4 Chongqing Huanzhou Pumps Internal Gear Pumps Product Portfolio
- 6.17.5 Chongqing Huanzhou Pumps Recent Developments
- 6.18 Hannuo Pump
- 6.18.1 Hannuo Pump Company Information
- 6.18.2 Hannuo Pump Business Overview
- 6.18.3 Hannuo Pump Internal Gear Pumps Sales, Revenue and Gross Margin (2021-2026)
- 6.18.4 Hannuo Pump Internal Gear Pumps Product Portfolio
- 6.18.5 Hannuo Pump Recent Developments
7 North America by Country
- 7.1 North America Internal Gear Pumps Sales by Country
- 7.1.1 North America Internal Gear Pumps Sales Growth Rate (CAGR) by Country: 2021 VS 2025 VS 2032
- 7.1.2 North America Internal Gear Pumps Sales by Country (2021-2026)
- 7.1.3 North America Internal Gear Pumps Sales Forecast by Country (2027-2032)
- 7.2 North America Internal Gear Pumps Market Size by Country
- 7.2.1 North America Internal Gear Pumps Market Size Growth Rate (CAGR) by Country: 2021 VS 2025 VS 2032
- 7.2.2 North America Internal Gear Pumps Market Size by Country (2021-2026)
- 7.2.3 North America Internal Gear Pumps Market Size Forecast by Country (2027-2032)
8 Europe by Country
- 8.1 Europe Internal Gear Pumps Sales by Country
- 8.1.1 Europe Internal Gear Pumps Sales Growth Rate (CAGR) by Country: 2021 VS 2025 VS 2032
- 8.1.2 Europe Internal Gear Pumps Sales by Country (2021-2026)
- 8.1.3 Europe Internal Gear Pumps Sales Forecast by Country (2027-2032)
- 8.2 Europe Internal Gear Pumps Market Size by Country
- 8.2.1 Europe Internal Gear Pumps Market Size Growth Rate (CAGR) by Country: 2021 VS 2025 VS 2032
- 8.2.2 Europe Internal Gear Pumps Market Size by Country (2021-2026)
- 8.2.3 Europe Internal Gear Pumps Market Size Forecast by Country (2027-2032)
9 Asia-Pacific by Country
- 9.1 Asia-Pacific Internal Gear Pumps Sales by Country
- 9.1.1 Asia-Pacific Internal Gear Pumps Sales Growth Rate (CAGR) by Country: 2021 VS 2025 VS 2032
- 9.1.2 Asia-Pacific Internal Gear Pumps Sales by Country (2021-2026)
- 9.1.3 Asia-Pacific Internal Gear Pumps Sales Forecast by Country (2027-2032)
- 9.2 Asia-Pacific Internal Gear Pumps Market Size by Country
- 9.2.1 Asia-Pacific Internal Gear Pumps Market Size Growth Rate (CAGR) by Country: 2021 VS 2025 VS 2032
- 9.2.2 Asia-Pacific Internal Gear Pumps Market Size by Country (2021-2026)
- 9.2.3 Asia-Pacific Internal Gear Pumps Market Size Forecast by Country (2027-2032)
10 South America by Country
- 10.1 South America Internal Gear Pumps Sales by Country
- 10.1.1 South America Internal Gear Pumps Sales Growth Rate (CAGR) by Country: 2021 VS 2025 VS 2032
- 10.1.2 South America Internal Gear Pumps Sales by Country (2021-2026)
- 10.1.3 South America Internal Gear Pumps Sales Forecast by Country (2027-2032)
- 10.2 South America Internal Gear Pumps Market Size by Country
- 10.2.1 South America Internal Gear Pumps Market Size Growth Rate (CAGR) by Country: 2021 VS 2025 VS 2032
- 10.2.2 South America Internal Gear Pumps Market Size by Country (2021-2026)
- 10.2.3 South America Internal Gear Pumps Market Size Forecast by Country (2027-2032)
11 Middle East and Africa by Country
- 11.1 Middle East and Africa Internal Gear Pumps Sales by Country
- 11.1.1 Middle East and Africa Internal Gear Pumps Sales Growth Rate (CAGR) by Country: 2021 VS 2025 VS 2032
- 11.1.2 Middle East and Africa Internal Gear Pumps Sales by Country (2021-2026)
- 11.1.3 Middle East and Africa Internal Gear Pumps Sales Forecast by Country (2027-2032)
- 11.2 Middle East and Africa Internal Gear Pumps Market Size by Country
- 11.2.1 Middle East and Africa Internal Gear Pumps Market Size Growth Rate (CAGR) by Country: 2021 VS 2025 VS 2032
- 11.2.2 Middle East and Africa Internal Gear Pumps Market Size by Country (2021-2026)
- 11.2.3 Middle East and Africa Internal Gear Pumps Market Size Forecast by Country (2027-2032)
12 Value Chain and Sales Channels Analysis
- 12.1 Internal Gear Pumps Value Chain Analysis
- 12.1.1 Internal Gear Pumps Key Raw Materials
- 12.1.2 Key Raw Materials Price
- 12.1.3 Raw Materials Key Suppliers
- 12.1.4 Manufacturing Cost Structure
- 12.1.5 Internal Gear Pumps Production Mode & Process
- 12.2 Internal Gear Pumps Sales Channels Analysis
- 12.2.1 Direct Comparison with Distribution Share
- 12.2.2 Internal Gear Pumps Distributors
- 12.2.3 Internal Gear Pumps Customers
13 Concluding Insights
14 Appendix
- 14.1 Reasons for Doing This Study
- 14.2 Research Methodology
- 14.3 Research Process
- 14.4 Authors List of This Report
- 14.5 Data Source
- 14.5.1 Secondary Sources
- 14.5.2 Primary Sources
- 14.6 Disclaimer
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