HX pump as a retrofit
For metering machines and for pu system technology
With the HX pump series, Hennecke developed the first axial piston pump designed exclusively for polyurethane applications. The pump series, originally introduced for the NEXT-GEN single metering machines, has now also been approved as a retrofit for existing metering machines and systems.
The focus of the in-house development was a precise, highly efficient and future-proof metering line that offers real added value in the processing of polyurethane. The HX series is manufactured by Hennecke itself, which guarantees continuous delivery availability.
Can be used in numerous systems
“The HX has proven itself very well in the NEXT-GEN metering machines. Based on these positive experiences, the pumps are now also approved for our retrofit business so that existing machines and systems can also benefit from their outstanding properties,” explains Lars Etschenberg, Head of Operational Excellence Engineering. The innovative HX series can be used not only in single metering machines, but also in the wet end of PU production systems, taking them to a new level. These include molded foam and sandwich panel systems as well as systems for technical insulation and refrigeration systems.
Why is it worth upgrading to the HX?
“There are many reasons for switching to the HX pump. The exchange process is usually smooth and can be done within a short time,” reports Eugen Kern, Team Leader Service Sales at Hennecke. The HX series has a significantly optimized pump housing that enables maximum bearing flushing. This allows efficient heat dissipation and thus prevents the reactive media from heating up, even at high ambient temperatures. The pump housing can withstand a pressure of up to 16 bar, which ensures optimal heat dissipation even at high pre-pressures. The choice of materials and surface treatment were specially designed for use in the field of polyurethane foam systems and offer a high level of protection against abrasive and corrosive media. The pump design results in optimized suction behavior, which is a noticeable advantage, especially with highly viscous components. Depending on the area of application, the HX pump can be supplied with low pre-pressures, therefore omitting the use of pre-pumps.
HX pump at a glance
- SIZES: HX06, HX12, HX28
- MAX. PERMITTED PRE-PRESSURE: 16 bar
- VISCOSITY RANGE: up to 8,000 mPas
- VOLUME: 200 cm³
- FLOW CAPACITY: 25 cm3/s–770 cm3/s
- SPEED RANGE: 300–1,800 U/min
- NOISE LEVEL: 75 dB
Predictive maintenance and sustainability
The HX series is equipped for the direct installation of pressure and temperature monitoring and is also prepared for a retrofittable distance sensor. This signals when preset wear limits have been reached, enabling predictive maintenance of the pump systems. The new HX scores highly also in terms of sustainability: the increase in efficiency leads to an optimized energy balance of the entire system and lower noise emissions. The pump also enables the problem-free processing of modern raw material systems based on bio- or re-polyols. “The HX is not only a perfect replacement for the discontinued HL pump series, but also offers the user real added value,” concludes Eugen Kern. “We advise our customers to choose the upgrade during the next maintenance measure. The retrofit is a worthwhile investment that quickly pays for itself.”
