Centrifugal Pumps — Compact system solutions with integrated speed control and many other options and accessories.
In modern equipment technology and specialized plant engineering, centrifugal pumps are indispensable due to their compact size and control characteristics. These miniature pumps combine high hydraulic performance with the advantages of low-voltage technology (12V/24V/48V). By combining them with matched power supplies and electronic speed controllers, we enable precise adjustment to the operating point without the conversion losses typical of AC motors.
Harton Anlagentechnik GmbH offers turnkey systems specifically designed for continuous operation in medical technology, laboratory technology, or for cooling high-performance electronics. Our engineers will assist you in integrating the pump into your existing architecture not merely as a component, but as a controlled subsystem.
Harton Anlagentechnik GmbH offers turnkey systems specifically designed for continuous operation in medical technology, laboratory technology, or for cooling high-performance electronics. Our engineers will assist you in integrating the pump into your existing architecture not merely as a component, but as a controlled subsystem.
Why choose a centrifugal pump from Harton Anlagentechnik GmbH?
We consistently rely on brushless DC motors. Since there are no mechanical commutators that can wear out, these drives achieve service lives of over 20,000 operating hours. This makes them the ideal choice for maintenance-free OEM applications where reliability is the top priority.
Our systems are supplied with either external or integrated control electronics. The speed can be continuously adjusted via standardized interfaces (e.g., PWM or analog signal). This enables our in-house engineers to minimize energy consumption and reduce noise emissions to a minimum.
Many of our centrifugal pumps operate on the principle of a magnetic coupling. Since there is no mechanical connection between the motor shaft and the pump impeller, the system is hermetically sealed. By design, leakage of fluids or the ingress of air is prevented.
Technical Specifications
| Volume flow rate Q | 0.2-333 L/min (depending on the model) |
| Delivery head H | up to 45 m WS |
| Rated Voltage | 24 V DC (standard), optional 12 V or 48 V-56 V |
| Power Consumption | 10 W to 540 W |
| Media temperature | -20 °C to +95 °C |
| Ambient temperature | max. +50 °C |
| Viscosity | Optimized for water-like media (up to 20 mPa·s) |
| Connections | Hose fittings, threads, or specific OEM interfaces |
Media and Applications for DC Systems
Our compact centrifugal pumps are ideal for clean, low-viscosity fluids:
Laboratory Technology:
Circulation of temperature-controlled liquids in analytical instruments.
Medical Technology:
Cooling circuits for laser applications or imaging techniques.
Industrial Cooling:
Cooling of welding guns, lasers, or battery modules.
Beverage Technology:
Dosing and delivery of water or cleaning solutions (FDA-compliant materials available).
Despite its small size, we make no compromises when it comes to choosing materials:
- Pump housing: High-performance plastics such as PPS, PPE, or PVDF for excellent chemical resistance.
- Bearings: High-strength ceramic shafts and carbon bearings ensure low-vibration operation and protection against dry-run damage during the startup phase.
- Seals: High-quality O-rings made of EPDM or FKM (Viton).
The combination of modern electronics and efficient hydraulics gives you a competitive edge:
- Plug-and-Play: Comes with preconfigured power supplies for direct connection to 230V AC.
- Intelligent control: Integrated anti-jamming protection and soft start to protect the mechanical components.
- EMC-compliant: Our controllers meet the strict limits for industrial and medical applications.
Every micro-pump undergoes defined test cycles at Harton Anlagentechnik GmbH:
- Hydraulic functional test: Comparison of actual values with the target characteristic curve.
- Electrical safety: Testing in accordance with relevant low-voltage directives.
- Documentation: Complete data sheets, installation drawings (CAD), and declarations of conformity are provided as standard.
Maintenance-free BLDC technology reduces operating costs to a minimum. The investment in a regulated DC system quickly pays for itself through:
- Lower power consumption during partial-load operation.
- Elimination of mechanical control elements (chokes).
- High system availability thanks to wear-free bearing designs.
Types and Varieties of Centrifugal Pumps
In industries such as medical technology or laboratory technology, installation space and precision are often decisive factors in a project’s success. A centrifugal pump—even one equipped with a DC motor and speed control from Harton Anlagentechnik GmbH —is more than just a component—it is an intelligent subsystem. By using brushless DC (BLDC) motors and optimized controllers, we achieve a level of control that eliminates the need for mechanical throttling and maximizes the efficiency of your entire system.
Our engineers do not provide you with isolated solutions, but rather fully integrable concepts that include a power supply interface and EMC protection. Whether for cooling laser systems or for precise temperature control in analytical technology: We validate the hydraulic performance curve and cavitation behavior (NPSH) as early as the design phase to guarantee long-term process reliability in the customer’s operations.
Our engineers do not provide you with isolated solutions, but rather fully integrable concepts that include a power supply interface and EMC protection. Whether for cooling laser systems or for precise temperature control in analytical technology: We validate the hydraulic performance curve and cavitation behavior (NPSH) as early as the design phase to guarantee long-term process reliability in the customer’s operations.
In medical technology, it is essential to avoid pressure surges when the system is turned on. To achieve this, our project developers integrate specialized soft-start electronics directly into the DC controller. Our expertise, dating back to 1984, enables us to program the acceleration ramp in such a way that sensitive system components are protected. In our second-generation design, we have also optimized EMC compatibility so that the pump can operate without interference alongside highly sensitive sensor systems.
| Drive power | 5-50 W (brushless) |
| Rotational speed | 800 - 5.000 min⁻¹ |
| Media temperature | +5 °C to +65 °C |
| Viscosity | 0,8 - 12 mPa·s |
| Solids | 0% |
| NPSHr | ＜ 0,5 m |
| Seal | O-ring (EPDM/FKM) |
| Flow rate (Q) | 0,1 - 20 l/min |
| Materials | PPA / Ceramic / FDA-compliant |
| Differential pressure | 0,1 - 1,0 bar |
| Control signal | PWM / 0-10V / Modbus |
| EMC Protection | Compliant with EN 60601-1-2 (Medical) |
| Power supply | 24V DC (optional external desktop power supply) |
For demanding applications in beverage processing and industrial cooling, our engineers have developed variants with enhanced performance specifications. These systems offer excellent NPSH performance to prevent cavitation even under unfavorable inlet conditions. Our engineering expertise is particularly evident in the thermal decoupling of the motor, which ensures reliable control of fluid temperatures up to +110 °C.
| Materials | Stainless Steel 1.4571 / PPA |
| Differential pressure | 0,5 - 4,5 bar |
| Drive power | 50 - 250 W |
| Rotational speed | 1.500 - 4.200 min⁻¹ |
| Media temperature | -10 °C to +110 °C |
| Viscosity | max. 50 mPa·s |
| Solids | Traces up to 0.2 mm are permitted |
| Gas content | max. 8 Vol.-% |
| NPSHr | 1,2 m |
| Seal | Mechanical seal or magnetic coupling |
| Flow rate (Q) | 10 - 80 l/min |
| Regulation | Integrated PID controller available |
This design represents the cutting edge of technology for leak-free processes. Our engineers rely on hermetic separation of the drive and the medium, eliminating the need for mechanical seals. Our specialists particularly recommend this system for continuous operation in industrial refrigeration and laboratory technology, as the absence of wear parts enables a service life of over 20,000 hours.
| Viscosity | max. 30 mPa·s |
| Solids | 0% (suitable for pure media) |
| Flow rate (Q) | 0,5 - 45 l/min |
| Materials | PPS / PVDF / Stainless Steel 1.4404 |
| ATEX | Optional: Zone 2 (Category 3G) |
| Rotational speed | 1,000-4,500 min⁻¹ (adjustable) |
| Differential pressure | 0,2 - 1,8 bar |
| Efficiency | up to 65% (hydraulic) |
| Drive power | 15 - 120 W (BLDC) |
| Media temperature | -20 °C to +95 °C |
| Gas content | max. 5 Vol.-% |
| NPSHr | ＜ 0,8 m |
| Seal | Sealless (Magnetic Coupling) |
System Advantages and Unique Technical Features
All pumps are self-priming; the fluid must flow into the pump. Our engineers calculate the required cavitation margin for your system. By using flow-optimized impeller geometries, we reduce the NPSHr value of our pumps, which significantly increases operational reliability even at rising fluid temperatures or low suction heads.
Unlike simple DC motors, our BLDC systems are tested to meet industrial EMC standards. We supply the appropriate peripherals—from DIN-rail power supplies to controllers with galvanically isolated control inputs. The engineering expertise of Harton Anlagentechnik GmbH ensures trouble-free integration into your plant’s PLC.
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