
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ25X200-75S is a genuine double acting, adjustable stroke + cushion JIS-standard round-body mini air cylinder with a Ø25mm bore and 200mm 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 both travel and end-of-stroke shock on site with this AirTAC adjustable-stroke, variable-cushion mini cylinder. The external adjuster lets you shorten the extend stroke by up to 75 mm (usable range 125-200 mm), while the needle air cushion at each end soaks up high-speed impact for smooth, quiet motion.
Built as a JIS-standard round-body unit with a SUS304 stainless barrel and riveted aluminium covers, it is shorter than an ISO 6432 cylinder for the same 25 mm bore and 200 mm stroke. The built-in magnet (-S) supports CMSG, DMSG and EMSG switches. Delivering 245.3 N push force at 0.5 MPa via a 1/8" port, it handles a safe working load of about 147 N and lifts roughly 12.5 kg vertically with a 2:1 margin.
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ25X200-75S |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 200 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. |
| ×200 | 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 125-200 mm extend position during format changeovers on packaging lines, using the 75 mm window to set the exact push distance without swapping cylinders.
Divert lightweight cartons at speed while the variable air cushion absorbs end-of-stroke shock, protecting the 245.3 N thrust mechanism from harsh impacts.
Test part seating depths safely by adjusting the extend stroke on the fly, relying on the cushion to decelerate the 12.5 kg vertical load before contact.
When sizing this adjustable family, compare the real thrust: this 25 mm bore gives 245.3 N push at 0.5 MPa, sitting neatly between the 20 mm bore at 157 N and the 32 mm bore at 402.2 N. Choose the 25 mm when you need that mid-range force alongside on-site stroke tuning for changeovers or trial fits.
The variable air cushion is strictly for decelerating the piston near stroke end, not for holding a load. If air pressure drops, the piston will drift; for suspended loads, install an external rod lock or pilot check valve. Mount via LB foot, FA flange or TC trunnion (no SDB), and use the -S magnet to fit CMSG, DMSG or EMSG sensors.
Quick checklist
This 25 mm bore double-acting cylinder uses a 1/8" port and a 10 mm rod with an 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 maximum force of 50 kgf at 1.0 MPa.
The external adjuster shortens the extend stroke by up to 75 mm, giving a usable range of 125-200 mm. The variable air cushion at both ends decelerates the piston near the end of travel to reduce shock. The -S suffix means it has a built-in magnet for CMSG, DMSG or EMSG sensors.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
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