Vacuum technology
Linear Pump
Electromagnetic piston or diaphragm. Quiet, long-lived.
Schematic section, not to scale
How it works
Linear pumps drive a free piston or diaphragm directly with an alternating magnetic field instead of a rotating motor and crank. With few wearing parts they are quiet, efficient and suited to continuous duty in aeration, medical and OEM equipment.
A magnet assembly oscillates at mains frequency between electromagnets, moving a piston or diaphragm back and forth. Valves turn the oscillation into a steady flow of gas for pressure or vacuum.
Performance range
Small flows, typically a few to roughly 100 l/min at low pressure or vacuum
Typical industry range. Exact capability is model specific, see each model’s curve.
Advantages & tradeoffs
- Very quiet and low vibration
- Few wearing parts
- Energy efficient at low pressure
- Limited pressure and vacuum
- Performance tied to supply frequency
- Small flows only
Best applications
Maintenance
Little routine service; replace piston, diaphragm or valves when worn.
Energy characteristics
Specific-energy comparisons (kW per unit of flow at your operating point) appear here as sourced performance curves are added. Until then, compare models directly on the Performance Map.
Open the Performance MapManufacturers
Manufacturer mapping in progress.
Models are being indexed.