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    1/2 HP 4.5 CFM/5 CFM 2 Stage Rotary Vane Vacuum Pump

    5 out of 5 based on 1 reviews | Write a review
    Featuring 2-stage rotary vane design, the oil-flooded vacuum pump has free air displacement 4.5 CFM working at 220V 50Hz, or 5 CFM at 110V 60Hz, durable aluminum alloy casing, 1/2 hp thermally protected motor, light and small structure, low noise and stable performance.
    SKU: ATO-VP-2RS2
    30-day Returns
    Free Shipping
    Delivery date: 6-12 days

    1/2hp oil-operated rotary vane vacuum pump, two stage, flow rate 4.5 CFM / 220V 50Hz, or 5 CFM / 110V 60Hz, ultimate vacuum 0.2 Pa, durable & efficient.


    • Lightweight and durable aluminum alloy casing
    • Direct dirve motor with full copper wire structure, easy starting and strong construction
    • Non-slip top handle for portability
    • Built-in high-volume cooling fan to provide thermal protection and extend service life
    • Big oil sight glass for viewing oil level
    • Oil drain plug at the bottom of oil reservior for fast draining
    • Oil anti-back valve designto prevent oil from flowing back to pollute the pump system when the pump stops.
    • Large torque design makes the vacuum pump easy to startup, even under low temperature environment (5℃) or low voltage.

    Applications: The 2-stage oil-flooded rotary vane vacuum pump is widely used in food packaging, scientific research, medical treatment, laboratories, automobile reparation, gas analysis, medicine mechanism, printing mechanism and other vacuum evacuation.


    Model ATO-2RS-2
    Structure Two stage vacuum pump
    Voltage 110V 60Hz 220V 50Hz
    Free Air Displacement 5 CFM 4.5 CFM
    Ultimate Vacuum 2*10^-1Pa / 1.5micron
    Rotating Speed 3500 rpm 2800 rpm
    Power 1/2 hp
    Oil Capacity 330 mL
    Dimension 290x115x220 mm
    Weight 10kg

    Vacuum Pump Details

    Rotary Vane Vacuum Pump Details Introduction

    11 Tips for Using the Vaccum Pump

    1. Do not pump flammable, explosive and toxic gases.
    2. Do not pump gas which will corrode metals and chemically change with the pump oil.
    3. Do not pump gas containing a large amount of particulate dust and a large amount of steam.
    4. The temperature of the pumped gas should not exceed 80℃.
    5. Do not use the vacuum pump as a compression pump or a delivery pump.
    6. Do not use or operate the vacuum pump without oil.
    7. When pulling the plug from the socket, do not pull on the wire.
    8. Do not place heavy objects on the wires to avoid being crushed.
    9. Do not use when the plug or socket is damaged.
    10. Do not plug or unplug the power cord with wet hands.
    11. If there is any gas leak, please unplug the power plug or turn off the pump.

    Existing reviews of 1/2 HP 4.5 CFM/5 CFM 2 Stage Rotary Vane Vacuum Pump
    Will this handle flammable gasses like gasoline vapor safely?
    Just as the title. Will this handle flammable gasses like gasoline vapor safely? How do you regulate the pump?
    From: Mill | Date: 31/03/2022
    Was this review helpful? Yes No (0/0)
    ATO Responded
    It's not intended for this purpose and your better off looking for a cold trap to condense vapors. No regulation- it's just on.
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