
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ25X200-10S 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 extend reach and end-of-stroke shock on-site with this JIS-standard round-body mini cylinder. The MFCJ25X200-10S uses a 10 mm external adjuster to shorten the extend stroke from its 200 mm nominal maximum, while a needle variable air cushion at both ends soaks up high-speed impact. Its SUS304 stainless barrel and riveted aluminium covers yield a body shorter than an ISO 6432 unit for the same bore and stroke, resisting mild washdown.
Delivering 245.3 N push and 206.1 N pull at 0.5 MPa through a 1/8" port, this double-acting actuator fits mid-force tasks. The built-in -S magnet supports CMSG, DMSG and EMSG switches for position sensing. Based on the 0.5 MPa push figure, expect a safe working load near 147 N, lifting about 12.5 kg vertically with a 2:1 margin.
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ25X200-10S |
|---|---|
| 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 extend stroke by up to 10 mm during machine changeovers to set precise tooling endpoints without fabricating new hard stops.
Use the variable air cushion to softly decelerate the 245.3 N extend thrust when snapping lightweight sorting gates into position at high cycle rates.
Lift roughly 12.5 kg loads vertically with a 2:1 safety margin, relying on the external adjuster to fine-tune the upper stop position on the fly.
Weigh this 25 mm bore against adjacent sizes: the MFCJ20 provides 157 N push at 0.5 MPa for lighter duties, while the MFCJ32 jumps to 402.2 N for heavier tooling. This MFCJ25X200-10S bridges that gap perfectly when you need on-the-fly stroke trimming for trial fits or changeovers. The 10 mm adjuster window lets you dial in the exact extend end position without machining.
Because the variable air cushion only decelerates the piston near stroke end, it acts as a shock absorber rather than a brake. The cylinder will drift and cannot hold a load if air pressure drops or the valve is centred; specify an external rod lock or pilot check valve for suspended loads. 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 cylinder has a 1/8" air port and a Ø10 mm rod with an M10x1.25 male 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, and a theoretical maximum of 50 kgf at 1.0 MPa.
The external adjuster shortens the extend stroke by up to 10 mm on-site, while the needle variable air cushion at both ends decelerates the piston to reduce high-speed shock. The cushion is not a brake; the cylinder drifts on air loss. The -S magnet allows CMSG, DMSG and EMSG sensors for position feedback.
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