PGX series internal gear pumps for hydraulic systems.
Featuring axial and radial pressure compensation design, ultra-low noise, extremely low flow and pressure pulsation, insensitivity to oil contamination, and flexible combination options for tandem configurations.
Widely used in industrial hydraulic systems, including injection molding machines, shoe manufacturing machines, die casting machines, and electric forklifts. Particularly suitable for energy-saving systems driven by servo inverters.
PGX-1H / PGX-2H / PGX-3H · Up to 350 bar · Up to 160 cm³/rev
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![High Pressure Internal Gear Pump PGX-1H Small Size Low Flow]()
High Pressure Internal Gear Pump PGX-1H Small Size Low FlowDiscover the PGX-1H Series, a small-size low-flow high-pressure internal gear pump. Features a fixed displacement clearance compensation design for reliable hydraulic fluid transmission up to 350 bar. -
![High Pressure Internal Gear Pump PGX-2H Medium Flow]()
High Pressure Internal Gear Pump PGX-2H Medium FlowDiscover the PGX-2H Series, a medium-flow high-pressure internal gear pump. Features a fixed displacement clearance compensation design for reliable hydraulic fluid transmission up to 350 bar. -
![High Pressure Internal Gear Pump PGX-3H Large High Flow]()
High Pressure Internal Gear Pump PGX-3H Large High FlowDiscover the PGX-3H Series, a large-size high-flow high-pressure internal gear pump. Features a fixed displacement clearance compensation design for reliable hydraulic fluid transmission up to 350
Your Professional Internal Gear Pump Supplier
BOKIN is a high-tech company focused on R&D, manufacturing, and global trade of high-end hydraulic components and intelligent electro-hydraulic systems. We provide reliable hydraulic solutions and customized systems for industrial automation, construction machinery, precision manufacturing, and new energy applications.
Strong R&D Capability
Backed by advanced research from Zhejiang University and experienced engineers, we continuously develop stable and efficient hydraulic technologies.
Reliable Product Quality
We follow strict quality control standards to ensure consistent performance, durability, and safe operation in industrial environments.
Flexible Custom Solutions
We support OEM/ODM services including specifications, control systems, logos, and packaging to meet different project needs.
Specification
|
Rated power |
0.37/100/102/103/105/183/184/185/186/191/195/1000 |
|
Rated flow |
0.216/1.008/3.78/12.8/241/245/288/727 |
|
Voltage |
60/70/87/98/99/230/240/360/341/345/690 |
|
Power |
75.9 |
|
Imported size |
301/305/8/3/0.2/0.4/1/10 |
|
Export pressure (Mpa) |
50/58 |
|
Connection method |
74 |
Advantages of Internal Gear Pump
High Efficiency
The design of internal gear pumps ensures a consistent flow rate, regardless of changes in pressure, which translates to minimal energy wastage.
Self-Priming
These pumps can evacuate air or gas from the suction line seamlessly, ensuring uninterrupted operation.
Robust Construction
Built with quality in mind, internal gear pumps are designed for longevity and reliability, even in challenging environments.
Wide Viscosity Range
They can handle thin liquids like solvents as well as thick substances like molasses, making them versatile for different applications.
Quiet Operation
The gear design allows for smooth and silent operation, creating a more comfortable working environment.
Precise Flow Control
Operators can easily adjust the flow rate by changing the rotational speed, which is crucial for accurate dosing and product quality.
Low Maintenance
With fewer moving parts, the likelihood of breakdowns is reduced, leading to lower maintenance costs.
Applications of Internal Gear Pump
Chemical Processing
Resins, polymers, solvents, and specialty chemicals require steady, controlled transfer. Internal gear pumps handle higher viscosities while maintaining predictable output and system pressure.
Food & Beverage
Chocolate, syrups, edible oils, sauces, and other viscous products require gentle handling with minimal pulsation. Internal gear technology reduces shear and protects product integrity.
Oil & Gas and Industrial Lubrication
Fuel transfer, lubrication systems, and hydraulic circulation rely on dependable positive displacement performance, especially where pressure stability is critical.
Pharmaceutical and Personal Care
Creams, gels, and specialty compounds often require precise metering and smooth flow. Gear pumps provide consistent delivery without damaging shear-sensitive materials.
General Industrial Manufacturing
Sealants, coatings, adhesives, and specialty fluids are often too thick for centrifugal designs. Internal gear pumps provide reliable transfer in both batch and continuous operations.
Different Materials for Internal Gear Pumps
Stainless Steel
Stainless steel is commonly used in internal gear pumps for corrosive fluids applications, such as chemical processing, pharmaceuticals, and food and beverage industries.
Cast Iron
Cast iron is often used for internal gear pumps in general industrial applications where the fluids are less corrosive but may contain abrasive particles.
Specialized Alloys and Coatings
For extreme conditions, such as high temperatures or highly abrasive fluids, specialized alloys (e.g., Hastelloy, Inconel) or coatings (e.g., ceramic, PTFE) are employed.
Precautions for Using Internal Gear Pumps
Routine Inspection: Regularly check for leaks, unusual sounds, vibration, and bearing temperature.
Lubrication: Maintain appropriate lubrication levels in gearboxes and bearings. Use recommended lubricants for each application.
Filter Maintenance: Inspect and clean strainers/filters at scheduled intervals to prevent gear damage.
Seal and Gasket Checks: Examine mechanical seals and gaskets for wear or leakage; replace as needed.
Alignment Verification: Check drive and shaft alignment after any maintenance or relocation.
Performance Testing: Periodically measure flow rates, pressure, and overall pump efficiency to detect declining performance.
Record Keeping: Log maintenance, repairs, and performance parameters for trend analysis and optimized scheduling.
Customizable Options
|
Gear Material |
Alloy Steel / Stainless Steel |
|
Housing Material |
Cast Iron / Aluminum |
|
Shaft Type |
Keyed / Splined |
|
Port Connection |
BSPP / NPT / SAE |
|
Mounting Type |
Flange / Foot Mount |
|
Rotation Direction |
CW / CCW |
|
Seal Material |
NBR / FKM / PTFE |
Packaging and Shipping
|
Packaging |
Standard export wooden cases or Customized packaging |
|
Shipping |
Shipping by sea, by air, by express are acceptable. According to your requirements. |
Our Certificates
FAQ
Bokin Electro-Hydraulic Technology (Foshan) Co., Ltd. is one of the most experienced internal gear pump manufacturers and suppliers in China, featured by quality products and good price. Please rest assured to buy bulk advanced internal gear pump in stock here from our factory. Contact us for pricelist and customized service.
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