AC Piston Vacuum Pump
Leynow · AC Piston Technology
Factory machines are usually powered by AC220/380V. If a DC pump is selected, a switching power supply needs to be added, increasing costs and potential failure points.
AC piston pumps are relatively large and have obvious reciprocating vibration. Embedding them into precision instruments requires reserved space for shock absorption and installation.
The reciprocating operation has high noise. The cup seal is a wearing part. Long-term continuous full-load operation is not recommended; intermittent control is required.
Traditional oil-lubricated pumps easily generate oil mist that contaminates samples. It is recommended to choose an oil-free dry piston structure to ensure a clean air source.
Directly matches industrial mains power, no additional inverter or transformer required; suitable as a built-in negative pressure unit for factory machines and fixed equipment.
The pump chamber requires no lubricating oil to operate, and the output airflow contains no oil mist, suitable for scenarios with cleanliness requirements such as sampling, vacuum filtration, and adsorption.
Reciprocating piston structure. H type focuses on ultimate negative pressure, V type focuses on high flow. Vacuum degree, flow rate, voltage, and interface are matched according to working conditions, reducing selection deviations.
AC motor has no carbon brush wear and abundant power; oil-free self-lubrication, the cup seal is a wearing part, easy to maintain and replace.
Compact body and flexible installation methods; it can be placed inside instruments or in the interlayer of machines, serving as a built-in negative pressure source unit.
Accessories such as intake filters, silencers, check valves, and pipe joints can be supplied as a set; providing working condition selection suggestions, troubleshooting, and repair support.
| Product Model | Motor Power | Ultimate Vacuum | Rated Voltage | Rated Flow | Rated Current | Industry Application |
|---|---|---|---|---|---|---|
LP-1800H |
0.55 Kw | 980 mBar | 110V/220-240V | 8.1 m3/h | 5.0/2.5 A | 真空包装 气力输送 真空搬运 真空吸附 |
LP-0550H |
0.28 Kw | -980 mBar | 110V/220-240V | 4.8 m3/h | 1.3 A | 真空包装 真空搬运 真空吸附 |
LP-1400V |
0.45 Kw | -920 mBar | 110V/220-240V | 9 m3/h | 2.0 A | 真空包装 真空搬运 真空吸附 |
LP-2400V |
0.9 Kw | -920 mBar | 110V/220-240V | 14.4 m3/h | 7.0/3.5 A | 真空包装 |
LP-3000V |
1.5 Kw | -920 mBar | 110V/220-240V | 15.6 m3/h | 6.8 A | 真空包装 |
The AC motor drives the piston to reciprocate, periodically changing the internal volume of the pump chamber, cyclically completing the suction and exhaust actions, and establishing a stable negative pressure at the intake port.
Oil-free piston structure, the pump chamber requires no lubricating oil, ensuring the output gas is clean.
Different models achieve different flow rates and ultimate vacuum; piston pumps balance flow rate and vacuum performance, and are more suitable for long-term continuous negative pressure air supply conditions compared to diaphragm pumps.
Compiled technical reference materials related to vacuum pumps for selection, equipment commissioning, and troubleshooting.
Suitable for vacuum filtration and sample pre-treatment in scientific research laboratories. Oil-free clean air source, low noise and stable, does not contaminate samples, suitable for built-in negative pressure matching of instruments.
Used for robotic arm suction cup gripping and fixture positioning and transferring. 220V mains direct supply, stable negative pressure and continuous operation, improving assembly line operation stability.
Used for online sampling and pumping of atmospheric and exhaust gases. Oil-free design protects detection sensors, resulting in more accurate data, suitable for matching various environmental monitoring instruments.
Gas path matching for small medical negative pressure suction and physiotherapy equipment. Clean air source without oil mist, low vibration and low noise, convenient for integration into medical instruments.
Vacuum sealing of small products and moisture-proof packaging of components. Fast pumping, stable negative pressure, and compact body, suitable for desktop and small packaging equipment.
Printing paper adsorption and conveying, lamination and labeling fixing. Uniform negative pressure reduces paper jams and deviation, ensuring the precision of printed and labeled finished products.
OEM built-in negative pressure source for instrument manufacturers. 220V direct supply eliminates power conversion, simplifying the complete machine circuit and reducing equipment R&D and material costs.
Vacuum defoaming of resin, silicone, and glue slurry. Clean air source does not contaminate materials, stable negative pressure removes bubbles, and improves product molding quality.
Negative pressure gripping and transferring of PCB, glass, and plastic parts. Stable negative pressure prevents slipping, meeting the continuous operation requirements of assembly lines.
Continuous pumping and sampling for exhaust gas and atmospheric detectors. Oil-free air source protects sensors, ensuring accurate and reliable detection data.
Pre-treatment filtration of biological and chemical samples. Oil-free does not contaminate specimens; compact size and simple and convenient maintenance.
Gas path unit for small negative pressure suction and waste liquid extraction. Clean and free of oil mist, meeting the built-in air source requirements of medical equipment.
Removal of internal bubbles from epoxy resin and silicone slurry, reducing pore defects and improving product molding yield.
Paper feeding adsorption for printing, lamination, and labeling machines. Uniform and stable negative pressure reduces paper jams and paper deviation faults.
Directly embedded into the instrument chassis, using AC220V mains power, eliminating the need for a power module and reducing the difficulty of complete machine design.
Simple vacuum sealing for food and electronic components. Fast pumping, compact body suitable for various small packaging machines.
Usage Limitations: Conventional AC piston vacuum pumps are not suitable for highly corrosive, flammable and explosive, high-temperature, or high-humidity condensation gases; for dusty and liquid-containing working conditions, it is recommended to install filters and gas-liquid separation devices at the intake end; do not operate with the intake or exhaust ports blocked for a long time, to avoid the pump body temperature rising and shortening the equipment's service life.
Selection Recommendations: Please first confirm the power supply voltage, required vacuum degree, pumping flow rate, medium composition, working system (continuous/intermittent), interface size, and installation space; when the system has pipelines or filters, resistance loss must be included, and it is recommended to reserve a reasonable performance margin. For complex working conditions, you can contact engineers for assistance in selection.
It is recommended to provide the AC voltage (AC110V/220V), target ultimate vacuum, actual pumping volume, extracted medium, working system (continuous or intermittent), interface size, and equipment installation space; if the system includes pipelines, filters, and valves, please also specify the pipeline length to facilitate accurate model matching.
For equipment sites with 220V mains power and fixed equipment operating for long periods, prioritize AC piston pumps, eliminating the need for power adapters and reducing costs for high-power conditions; for lithium battery-powered and vehicle-mounted mobile equipment, prioritize DC vacuum pumps.
Standard models are only suitable for extracting clean neutral air; for dust, an intake filter must be installed; for working conditions with water vapor, a gas-liquid separator needs to be configured; for corrosive gases, a special material pump head needs to be customized. Please provide medium parameters for engineers to evaluate feasibility.
Noise is affected by power, speed, and installation conditions; by adding silencers, shock-absorbing foot pads, and flexible hose connections, the noise of the complete machine can be significantly reduced; the noise value is subject to actual measurement of the prototype.
Can be matched with intake filters, silencers, check valves, vacuum tanks, pipe joints, shock-absorbing foot pads, etc.; all accessories can be purchased separately, and the manufacturer can provide a complete set of gas path matching solutions.
Support conventional customization of voltage, interface form, wiring, and installation structure; also provide technical selection consultation, troubleshooting, and original factory repair and maintenance services.
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