Diaphragm Type Dry Vacuum Pump

DA / DAP / DAT Series 1st Stage Type



Single-stage / DC motor equipped / with interlock protection / with overcurrent protection


  • A standard type of dry vacuum pump with abundant results and low price.
  • Dry vacuum pump using no oil in the gas contact area.
  • Rich lineup available to suit your application.
  • One-stage exhaust system is faster than two-stage exhaust system.
  • Safety design with lock protection and over current protection function
  • Operation is possible from atmospheric pressure.
  • Equipped with DC motor.


  • Vacuum chucks, wafer and tip handling devices.
  • Vacuum tweezers, medical appliances.
  • Printing equipment.
  • Automatic packing machines.
  • Optical appliances.
  • Sterilizer.


Actual pumping speed
L/min 18
Ultimate pressure※1
Pa (kPa) 24.0×103 (-77.3)
  DC Brushless motor, 14W, 4P, 24V
Full load current
A 1.4
kg 1.75
Inlet,outlet pipe diameter※2
mm Rc 1/8
Ambient temperature
External dimensions
mm 83.5(W)×165(L)×123.8(H)
※1:The gauge pressure display is shown in () of Ultimate pressure.
※2:The intake and exhaust pipes are not included.

Corresponding certificate/Voltage

Model Applicable standard CEDeclartion of confirmity DC24V
DAP-18S-DC24 TUV, cTUVus
●:Standard、○:Option、-:Not Applicable


The pump is stopped when the lord is operated, and the pump can’t be operated just after that.
In this case, please return the atmospheric pressure the inside of the pump.
The pump will not often operate normally if it is used with corrosive gases, organic solvents, liquids, or condensed gases (eg steam).
The pump will not often operate normally if it is used with gases containing particles or dust etc.
The positions and dimensions of the M4 screws in the "DAP-18S-DC24" are varied within the range of tolerances depending on the combination of base component parts.
It is a pump only in the room. Please do not set it up in the place, that rain and water splash, and outdoors.

Dimension drawing


> CAD data download(DXF)

Pumping Speed Curves


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