
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ25X60-40S is a genuine double acting, adjustable stroke + cushion JIS-standard round-body mini air cylinder with a Ø25mm bore and 60mm 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.
Trim the extend stroke by up to 40 mm on site while dialing in a needle air cushion at each end for smooth, quiet high-speed motion. This double-acting JIS-standard round-body mini cylinder features a SUS304 stainless barrel and riveted aluminium covers, offering a shorter mounting length than an ISO 6432 unit for the same 25 mm bore and 60 mm stroke.
Delivering 245.3 N push and 206.1 N pull at 0.5 MPa, it handles a safe working load of roughly 147 N or lifts about 12.5 kg vertically with a 2:1 margin. The -S suffix means a built-in piston magnet is present for CMSG, DMSG or EMSG switches, and the 1/8" port keeps air flow compact for changeover-heavy setups.
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ25X60-40S |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 60 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| 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 | Variable air cushion, both ends |
| 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.
| MFCJ | JIS-standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×60 | 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.
Fine-tune the extend position within the 40 mm window during machine changeovers, absorbing high-speed impacts with the variable air cushion for precise 245.3 N actuation.
Set exact gating distances on the fly while using the needle cushion to softly stop the 25 mm bore piston, preventing product damage on packaging lines.
Ideal for trial fits where the 60 mm base stroke needs shortening on-site; the SUS304 barrel resists mild washdown in experimental environments.
Weigh the 25 mm bore against the MFCJ20 at 157 N or the larger MFCJ32 at 402.2 N (both at 0.5 MPa push) to match your payload. Choose this adjustable-stroke, variable-cushion build for high-speed changeovers or shock-sensitive trial fits where both the end position and deceleration need tuning. Mount via LB foot, FA flange or TC trunnion (no SDB). Note that the air cushion only decelerates near stroke end; it is not a lock, so add an external rod lock or pilot check valve to hold a load on air loss.
Quick checklist
This 25 mm bore cylinder has a 1/8" air port and a 10 mm rod with M10x1.25 thread. 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 40 mm, while the variable air cushion at both ends decelerates the piston near stroke end for smooth stops. The cushion is not a brake or lock; for position holding on air loss, install an external rod lock or pilot check valve. The -S magnet enables CMSG, DMSG or EMSG sensors.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
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