
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ25X60-40SLB 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 with the external adjuster, while the needle variable air cushion at both ends soaks up high-speed end-of-stroke shock. This double-acting JIS-standard round-body mini cylinder features a SUS304 stainless barrel and riveted aluminium covers, delivering 245.3 N push force at 0.5 MPa through a 1/8" port.
Because the MF body is shorter than an ISO 6432 cylinder for the same 25 mm bore and 60 mm stroke, it saves valuable mounting length. The built-in -S magnet supports CMSG, DMSG, or EMSG switches, and the included LB foot mount simplifies installation. With a safe working load of roughly 147 N, it lifts about 12.5 kg vertically with a 2:1 margin.
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ25X60-40SLB |
|---|---|
| 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.
Dial in the exact 20-60 mm extend distance for pressing light fittings while the variable air cushion absorbs the 245.3 N end impact without slamming.
Fine-tune the actuator reach on the fly during product changeovers, relying on the LB foot mount and compact JIS body to fit tight conveyor frames.
Set the extend stroke precisely to fold light cartons without crushing, using the needle cushion to decelerate the 12.5 kg vertical load smoothly.
When sizing this series, compare the real thrust: this 25 mm bore gives 245.3 N push at 0.5 MPa, sitting neatly between the MFCJ20 at 157 N and the MFCJ32 at 402.2 N. Choose the 25 mm bore when your changeover requires precise extend tuning within that 40 mm window alongside high-speed cushioning for shock-sensitive trial fits.
Remember that the air cushion only decelerates the piston near the end of stroke; it is not a lock or brake. If the load must be held on air loss, add an external rod lock or pilot-operated check valve. The -S magnet enables position sensing, and the LB foot bracket provides stable base mounting.
Quick checklist
This 25 mm bore cylinder has a 1/8" port and generates 245.3 N push / 206.1 N pull at 0.5 MPa, and 343.4 N push / 288.5 N pull at 0.7 MPa. The theoretical maximum force is 50 kgf at 1.0 MPa.
The external adjuster shortens the extend stroke by up to 40 mm on site, giving a usable extend range of 20-60 mm, while retract remains full. The -S suffix means it has a built-in piston magnet for CMSG, DMSG, or EMSG switches.
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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