
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ32X125-100 is a genuine double acting, adjustable stroke + cushion JIS-standard round-body mini air cylinder with a Ø32mm bore and 125mm stroke, 1/4" 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 100 mm on site with the AirTAC MFCJ32X125-100, a JIS-standard round-body mini cylinder built for high-speed changeovers. A needle variable air cushion at both ends soaks up end-of-stroke shock, while the SUS304 stainless barrel and riveted aluminium covers resist mild washdown. This double-acting actuator uses a 1/4" port and a 12 mm rod with an M10x1.25 male thread.
Delivering a push force of 402.2 N at 0.5 MPa, it yields a safe working load of about 241 N and lifts approximately 20.5 kg vertically with a 2:1 margin. The compact riveted body is shorter than an ISO 6432 cylinder for the same bore and stroke, saving mounting length. Note that this SKU lacks a magnet and cannot take a sensor; the -S variant enables CMSG, DMSG, or EMSG switches.
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ32X125-100 |
|---|---|
| Series | MFCJ JIS mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 125 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| Port size | 1/4" |
| 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 | 402 N | 346 N |
| 0.7 MPa | 563 N | 484 N |
| Max (@1.0 MPa) | 82 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). |
|---|---|
| 32 | Bore size in mm. |
| ×125 | 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 within the 100 mm window and set the needle air cushion to absorb shock during rapid machine format changeovers.
Perfect for lab testing where the 402.2 N push force must stop smoothly without slamming delicate fixtures at the end of travel.
Leverage the shorter JIS body to fit tight spaces while adjusting the end position to push parts accurately into machining stations.
Weighing MFCJ32 against MFCJ40 comes down to force needs: this 32 mm bore pushes 402.2 N at 0.5 MPa, whereas the 40 mm bore delivers 628.3 N. Choose the 32 mm when you need moderate thrust and tighter mounting envelopes. The 100 mm adjustable window is ideal for trial fits where the exact extend position and end-of-stroke shock both need tuning.
Mounting options include LB foot, FA flange, and TC trunnion (no SDB or back-cover code). Because this is a non-magnet SKU, it cannot accept position sensors. Remember that the air cushion only decelerates the piston near stroke end—it is not a lock. If the application requires holding a load on air loss, install an external rod lock or pilot check valve.
Quick checklist
This double-acting cylinder features a 1/4" port and a 12 mm rod. It generates a push force of 402.2 N and a pull force of 345.6 N at 0.5 MPa. At 0.7 MPa, push is 563 N and pull is 483.8 N. The theoretical maximum force is 82 kgf at 1.0 MPa.
No, this specific SKU does not include a magnet, so it cannot accept CMSG, DMSG, or EMSG switches. You would need the -S variant for sensing. The external adjuster shortens the extend stroke by up to 100 mm, and the variable air cushion handles deceleration.
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