
The AirTAC Airtac MFJ Adjustable Mini Cylinder MFJ25X150-100 is a genuine double acting, adjustable stroke JIS-standard round-body mini air cylinder with a Ø25mm bore and 150mm stroke, 1/8" air ports and a SUS304 stainless-steel barrel for mildly corrosive environments. For the same bore and stroke it is shorter than an ISO 6432 cylinder, saving mounting space.
Dial in your extend end-position on site with the AirTAC MFJ25X150-100, a JIS-standard round-body mini cylinder featuring a 100 mm adjustment window. This double-acting actuator uses a riveted aluminium head and SUS304 stainless steel barrel to resist mild washdown corrosion while saving mounting length compared to an ISO 6432 unit.
Delivering 245.3 N of push force at 0.5 MPa through a 1/8" port, it yields a safe working load of roughly 147 N. The external adjuster shortens the extend stroke down to 50 mm without buying a new cylinder, making it ideal for line changeovers. This non-magnet SKU cannot take a sensor.
| Model | Airtac MFJ Adjustable Mini Cylinder MFJ25X150-100 |
|---|---|
| Series | MFJ JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 150 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Fixed TPU bumper pads |
| Max standard stroke | Up to 500 mm |
Specifications follow the official AirTAC MF/MFC (JIS-standard) datasheet. Barrel: SUS304 stainless steel; covers: aluminum alloy (round-body, riveted rolling-packed construction). Thread options: PT (blank) / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | 289 N |
| Max (@1.0 MPa) | 50 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| MFJ | JIS-standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 25 | Bore size in mm. |
| ×150 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
MF-family variants: MF / MFC (double acting ±cushion), MSF / MTF (single acting push / pull), MFD / MFCD (double rod ±cushion), MFJ / MFCJ (adjustable stroke ±cushion). Back covers CA / U / CM. Mounting LB / FA / SDB / TC.
Swap product families and twist the external adjuster to shorten the 150 mm extend stroke by up to 100 mm, hitting new push positions without swapping hardware.
Dial in the exact endpoint during prototype builds where the final extension is unknown, leveraging the 245.3 N push force to test part seating.
Replace hard external stops with the built-in adjuster to set precise 50 to 150 mm extend lengths for varying component heights on the same line.
When sizing this series, compare the real 0.5 MPa push forces: the MFJ20 delivers 157 N, this MFJ25 provides 245.3 N, and the larger MFJ32 outputs 402.2 N. Choose the 25 mm bore when your payload sits in the middle, then use the 100 mm adjuster to fine-tune the extend endpoint during commissioning or trial fits.
Mounting options include LB foot, FA flange, and TC trunnion (no SDB). Remember that the fixed TPU bumpers only decelerate the stroke end; they do not lock the piston. To hold a vertical load on air loss, install an external rod lock or pilot check valve. If you need position sensing, select the -S magnet variant for CMSG/DMSG/EMSG switches.
Quick checklist
This 25 mm bore cylinder features a 1/8" port and a 10 mm male rod thread (M10x1.25). It generates 245.3 N push and 206.1 N pull at 0.5 MPa, 343.4 N push and 288.5 N pull at 0.7 MPa, with a theoretical max of 50 kgf at 1.0 MPa.
The external adjuster shortens the extend stroke by up to 100 mm on site, giving a usable 50 to 150 mm range. The retract stroke remains full length. Fixed TPU bumper pads decelerate the stroke end, but they do not lock the load. Note this non-S SKU lacks a magnet and cannot host CMSG/DMSG/EMSG sensors.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
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