
The AirTAC Airtac MFJ Adjustable Mini Cylinder MFJ25X160-30 is a genuine double acting, adjustable stroke JIS-standard round-body mini air cylinder with a Ø25mm bore and 160mm 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.
Tune your extend end position on site with the AirTAC MFJ25X160-30, a JIS-standard round-body mini cylinder. An external adjuster lets you shorten the forward stroke by up to 30 mm, giving a usable extend range of 130 to 160 mm without buying external stops. The retract stroke remains full length. Built with a SUS304 stainless barrel and riveted aluminium covers, the body is shorter than an ISO 6432 cylinder for the same bore and stroke, saving valuable mounting length while resisting mild washdown.
This double-acting 25 mm bore unit pushes with 245.3 N and pulls with 206.1 N at 0.5 MPa. It yields a safe working load of about 147 N, lifting roughly 12.5 kg vertically with a 2:1 margin. It uses a 1/8" port and a Ø10 mm rod. Note this SKU lacks the -S magnet, so it cannot take CMSG/DMSG/EMSG switches. Fixed TPU bumpers decelerate the stroke ends, but the piston drifts on air loss, so add an external rod lock for held loads.
| Model | Airtac MFJ Adjustable Mini Cylinder MFJ25X160-30 |
|---|---|
| Series | MFJ JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 160 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. |
| ×160 | 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.
Dial in the 130 to 160 mm extend position during product format changes, using the 30 mm window to set new stops without swapping the cylinder.
Safely test end positions for new tooling with the 245.3 N push force, adjusting the stroke on the fly until the kinematics are proven.
Provide adjustable mechanical end stops for light press tasks, relying on the fixed TPU bumpers to absorb the impact at the tuned extend point.
Choose between the 20, 25, 32, and 40 mm bores based on your force needs. The MFJ20 provides 157 N push at 0.5 MPa, this MFJ25 hits 245.3 N, and the MFJ32 delivers 402.2 N. The adjustable 30 mm window is perfect for trial fits or line changeovers where the exact end position is not final. You can fine-tune the extend end from 130 to 160 mm directly on the machine.
Mounting options include LB foot, FA flange, and TC trunnion (no SDB). Because this specific SKU has no -S magnet, it cannot accept position sensors; order the -S variant if you need CMSG/DMSG/EMSG switches. Remember the adjuster sets the end stop and is never a mid-stroke lock or brake.
Quick checklist
This 25 mm bore cylinder has a 1/8" port and a Ø10 mm rod. It pushes with 245.3 N and pulls with 206.1 N at 0.5 MPa. At 0.7 MPa it pushes 343.4 N and pulls 288.5 N. The theoretical maximum force is 50 kgf at 1.0 MPa.
The external adjuster shortens the extend stroke by up to 30 mm on site, giving a 130 to 160 mm range. Fixed TPU bumpers decelerate the stroke end but do not act as a lock. The piston drifts on air loss, so use an external rod lock or pilot check valve to hold a load. This SKU lacks the -S magnet, so it cannot take sensors.
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