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Iwaki

Iwaki APN Series Diaphragm Air Pumps

Iwaki APN are compact, oil-free diaphragm air pumps with the motor directly connected to the diaphragm: AC models up to 110 L/min and 0.2 MPa, DC models up to 14 L/min.

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Iwaki APN Series Diaphragm Air Pumps — describe your application and we will help you identify the right model and configuration together.

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Technical specifications

Iwaki APN diaphragm air pump with a green pump head and a black motor
Pump typeDiaphragm air pump (pressure and vacuum) with the motor directly connected to the diaphragm; oil-free; single-head or dual-head versions
AC motor modelsAPN-051, 052, 085, 110, 215, 240 and 450; AC 100 V, 50/60 Hz in the specification table (some models are also coded for AC 115, 200 and 220/240 V)
DC motor modelsAPN-S041, 051, 085 and 110; DC 24 V (the 085 also DC 12 V)
Maximum gas flow, AC models0.6 to 100 L/min at 50 Hz and 0.7 to 110 L/min at 60 Hz, depending on model
Maximum gas flow, DC models0.8 to 14 L/min, depending on model
Maximum discharge pressureAC models up to 0.2 MPa; DC models up to 0.10 MPa
Maximum vacuumAC models down to 3.33 kPa (abs.); DC models down to 9.33 kPa (abs.)
Power consumptionAC models 14 to 345 W (motor output 1 to 200 W); DC models 6 to 33.6 W
Pump head materialsGFRPP, ADC12 (aluminium alloy) or SUS304 stainless steel, depending on model
Diaphragm materialEPDM, FKM, NBR or PTFE, depending on model
Gas and ambient temperature0 to 40 °C or 5 to 40 °C, depending on model; the limit cold-start temperature (0 to 10 °C) depends on model and diaphragm material
ConnectionsHose and threaded connections, depending on model

Iwaki APN is a series of compact diaphragm air pumps in which the motor is directly connected to the diaphragm. The pumps transfer air without oil and can be used as a vacuum source on the suction side or as a pressure source on the discharge side. The series covers AC motor and DC motor versions.

AC and DC motor versions

The AC motor models (APN-051 to APN-450) deliver 0.6 to 100 L/min at 50 Hz and 0.7 to 110 L/min at 60 Hz, with a discharge pressure of up to 0.2 MPa and a vacuum down to 3.33 kPa (abs.). The DC motor models (APN-S041, 051, 085 and 110) work in a lower flow range of 0.8 to 14 L/min, up to 0.10 MPa and down to 9.33 kPa (abs.), and run on 12 V or 24 V DC. Power consumption ranges from 6 W to 33.6 W for the DC models and from 14 W to 345 W for the AC models. Single-head and dual-head versions are available, and the manufacturer lists more than 60 combinations of head type, diaphragm and connection (the number varies with the model).

Materials and operating limits

The pump head is made of GFRPP (glass fiber reinforced polypropylene), ADC12 aluminium alloy or SUS304 stainless steel, depending on the model. The diaphragm material can be EPDM, FKM, NBR or PTFE; the material and the suction connection differ from model to model. The permitted gas and ambient temperature is 0 to 40 °C or 5 to 40 °C depending on the model, and the limit cold-start temperature depends on the model and the diaphragm material. The pump head consists of only a few parts and can be assembled and disassembled easily, except on some models.

Applications

Because the pump transfers clean air without oil, the manufacturer points to medical, sampling and similar applications that need clean air. Typical uses listed in the datasheets are analyzers (including air and flue-gas analyzers), medical equipment, laboratory instruments and built-in equipment that needs a pressure or vacuum source.

For other Iwaki pumps, see the Iwaki pump range. Send us your requirement and Mikron Proses can help you choose the model and diaphragm material.

Applications

  • Gas analyzers, air analyzers and other analyzer systems
  • Medical and laboratory equipment
  • Sampling lines that need clean, oil-free air
  • Pressure or vacuum source for built-in equipment

Datasheets and manuals

Documents were last compared with the manufacturer's source on 2026-08-21.

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