Closed Circuit Piston Pumps

Get a Price/Quote

Product Details:

Voltage 240V / 415V
Discharge Pressure Up to 350 bar
Caliber Multiple Sizes Available
Noise Level Low noise operation <72 dB
Mounting Type Flange / Foot
Inlet/Outlet G1 BSP
Control System Electronic / Manual
Click to View more
Share Your Product:

Request to Call Back Send Inquiry

Closed Circuit Piston Pumps Product Specifications

Theory Axial Piston
Capacity Customized as per requirement
Suction Type Positive displacement
Features High efficiency, Compact design, Long service life
Frequency 50/60 Hz
Fuel Type Hydraulic Oil
Working Temperature -20C to +80C
Flow Rate 20 - 180 L/min
Power 3kW - 45kW
Pump Type Closed Circuit Piston Pump
Speed 1500 - 3000 RPM
Fuel Tank Capacity External or Integrated
Priming Self-Priming
Voltage 240V / 415V
Discharge Pressure Up to 350 bar
Standard ISO/CE certified
Application Injection Molding, Metal Forming
Mounting Type Flange / Foot
Caliber Multiple Sizes Available
Noise Level Low noise operation <72 dB
Usage Industrial Hydraulic Systems
Material Cast Iron Body, Hardened Steel Components
Control System Electronic / Manual
Inlet/Outlet G1 BSP
Structure Closed Circuit
Max Suction 5 m
Head Size Up to 350 bar
Seals Type High-Performance Viton
Pressure Up to 350 bar

Product Description

Danfoss offers a full range of closed-circuit piston pumps to meet the displacement, speed, pressure, and efficiency requirements of your unique mobile applications.
We also provide advanced propulsion solutions, including controllers and software, to maximize productivity and ease of use.

Versatile Operations for Industrial Needs

These closed circuit piston pumps are engineered to meet a variety of industrial applications such as injection molding and metal forming. Their reversible rotation and adjustable relief valve enable flexible usage across different hydraulic setups, providing consistent performance under heavy-duty conditions.

Efficiency and Durability at the Core

With a hard-wearing cast iron body and hardened steel internals, these pumps ensure longevity and reliability. Low noise operation and hydraulic fluid lubrication keep maintenance minimal, while high-performance seals guard against leaks for long-term dependability.

Advanced Features for Maximum Control

Customizable capacity, integrated or external fuel tank, flange or foot mounting, and electronic/manual control systems give unparalleled adaptability. Integrated temperature sensor options and ISO/CE certification guarantee performance and compliance with industry standards.

FAQ's of Closed Circuit Piston Pumps:

Q: How does the reversible direction of rotation benefit industrial operations?

A: The reversible direction of rotation (clockwise or anticlockwise) allows these pumps to be easily adapted for various system architectures, simplifying installation, maintenance, and operational flexibility within industrial environments.

Q: What is the recommended fluid viscosity range for optimal pump performance?

A: For best results, use hydraulic fluids with a viscosity between 8 and 800 mm2/s. Operating within this range ensures efficient lubrication, reduces wear, and maintains pump longevity.

Q: When should the integrated temperature sensor option be selected?

A: The integrated temperature sensor is recommended when continuous monitoring of pump temperature is needed, particularly in systems exposed to fluctuating heat loads or where thermal management is critical to performance and safety.

Q: Where can these pumps be installed within hydraulic systems?

A: Closed circuit piston pumps can be mounted via flange or foot options, making them suitable for integration in centralized hydraulic stations, injection molding machines, or metal forming facilities.

Q: What is the process for servicing or field-repairing the pump?

A: These pumps are fully serviceable on site. With flexible coupling, accessible adjustment points, and readily available replacement kits, routine maintenance, seal replacement, and field repairs can be performed quickly without specialized tools.

Q: How is noise reduction achieved in these pumps?

A: Noise reduction is accomplished through precision engineering of internal components, optimal hydraulic fluid lubrication, and high-performance seals, resulting in low operation levels typically under 72 dB.

Q: What are the main benefits of using high-performance Viton seals?

A: Viton seals provide excellent resistance to high temperatures, aggressive hydraulic oils, and prolonged mechanical stress, ensuring leak-free operation and extending service intervals in demanding industrial applications.