Danfoss Energy Options has launched its most superior Vickers by Danfoss medium-pressure axial piston pump.
Initially accessible in a 28-cc displacement, Danfoss says the brand new PVMX Axial Piston pump presents substantial developments over earlier mannequin sequence.
It encompasses a steady working stress of as much as 350 bar, enabling higher energy density, diminished actuator dimension and minimised system stress. Its rated rotational velocity of 3,800 rpm is completely matched for high-speed servo motor purposes requiring quick response and frequent biking.
Moreover, it operates with low noise ranges, reaching as little as 72 dB(A) (at 280 bar and three,000 rpm), making it ultimate for acoustically delicate environments. These capabilities assist quieter machines, sooner response occasions, and compact hydraulic energy items.
These high-performance specs, mixed with the pump’s capability to function in two-quadrant mode, additional broaden the vary of appropriate purposes. Designed for bidirectional move with out advanced valving, the pump permits the move route to be reversed by both reversing the route of the servo motor or using the pump’s over-center design. This simplifies system structure whereas enabling superior movement management capabilities akin to quick actuator retraction, managed deceleration, and stress reduction cycles.
In servo-hydraulic purposes akin to injection molding, die casting, or vertical presses, the pump’s capability to facilitate power restoration performs a transformative function. Throughout operations like mould retraction or gravity-assisted actions, the actuator’s reverse move is effectively routed by the pump. On this mode, the actuator drives the pump mechanically; the pump, in flip, drives the motor, and the motor acts as a generator, feeding electrical power again into the system. This course of permits true regenerative braking and substantial power financial savings, lowering the load on the principle motor drive and minimising system warmth.
In comparison with conventional fixed-speed pump methods, this servo-driven pump can obtain power financial savings of as much as 80%, relying on the responsibility cycle. A number of elements drive this effectivity: the pump operates solely when wanted (eliminating idle losses), greater speeds allow the usage of smaller electrical motors, power recuperation throughout deceleration offsets enter energy calls for, and diminished cooling necessities decrease warmth technology. The result’s a major discount in total energy consumption, resulting in decrease working prices, a diminished carbon footprint, and improved compliance with power effectivity directives.
Supporting speeds as much as 3,800 rpm, a 35% enhance over earlier Vickers by Danfoss medium-pressure pumps, the PVMX is optimised for next-generation servo motor-driven architectures. This synergy permits for sooner machine cycles and dynamic response, along with enabling the downsizing of motors and drive electronics and simplifying system layouts. This improved controllability results in elevated productiveness and precision for high-precision purposes in plastics, forming, take a look at stands, and cell equipment.
In-built compliance with ISO and SAE interface requirements, the PVMX presents a full vary of management choices, together with stress compensation, load sensing, and twin displacement, with extra deliberate for future launch. A number of drive shaft and through-drive configurations, in addition to numerous mounting flanges and porting preparations, are additionally accessible. This flexibility permits OEMs to design or retrofit methods with minimal customisation, accelerating time-to-market and simplifying stock administration.
“Compact, environment friendly, and sensible, the PVMX contributes to smaller system footprints, decrease cooling necessities, and diminished put in motor energy. This modern pump empowers OEMs and system designers to fulfill future sustainability targets whereas concurrently rising throughput and lowering the entire price of possession,” says Yuanjin (Stein) Wang, world product administration director, pumps and motors, Industrial division, Danfoss Energy Options.
Picture: Danfoss Energy Options
