
The AirTAC Airtac MFCJ Adjustable Mini Cylinder MFCJ32X125-100S 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.
Dial in the exact extend length on-site with the AirTAC MFCJ32X125-100S, a JIS-standard round-body mini cylinder offering a 100 mm adjustable window on a 125 mm base stroke. The external adjuster shortens the extend end within a 25-125 mm usable range, while the needle-set variable air cushion at both ends soaks up high-speed shock. It is a double-acting SUS304 stainless steel and riveted aluminium build, not a tie-rod or profile cylinder.
Delivering 402.2 N push at 0.5 MPa through a 1/4" port, this unit yields a safe working load of roughly 241 N and lifts about 20.5 kg vertically with a 2:1 margin. The -S suffix equips the piston with a magnet for CMSG, DMSG or EMSG switches. Its compact body is shorter than an ISO 6432 cylinder for the same bore and stroke, saving mounting length in tight changeover fixtures.
| Model | Airtac MFCJ Adjustable Mini Cylinder MFCJ32X125-100S |
|---|---|
| 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 the 100 mm extend window to set precise contact depth on high-speed stamping heads, relying on the variable air cushion to decelerate the 402.2 N push force smoothly.
Tune the extend stroke on the fly for mixed carton sizes on a packaging line, using the 1/4" port and dual cushions to maintain quiet 30-800 mm/s operation.
Lift loads up to 20.5 kg vertically with a 2:1 margin, adjusting the extend end to match varying shelf heights while the SUS304 barrel resists washdown moisture.
Choose the MFCJ32 (402.2 N push at 0.5 MPa) over the larger MFCJ40 (628.3 N) when your fixture needs moderate force and high cycle agility, or step down to the MFCJ25 (245.3 N) for lighter pick-and-place. The 100 mm adjustable window is ideal for trial fits where you must tune the extend end and the end-of-stroke shock together without machining new stops. Mount via LB foot, FA flange or TC trunnion (no SDB). The needle air cushion only decelerates near the stroke end; it is not a lock. To hold a load on air loss, fit an external rod lock or pilot check valve.
Quick checklist
This double-acting 32 mm bore cylinder uses a 1/4" port and generates 402.2 N push / 345.6 N pull at 0.5 MPa, 563 N push / 483.8 N pull at 0.7 MPa, and a theoretical max of 82 kgf at 1.0 MPa.
The external adjuster shortens the extend stroke by up to 100 mm (usable 25-125 mm), while the variable air cushion at both ends decelerates the piston near stroke end. The cushion is not a brake; for load holding on air loss, use an external rod lock. 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.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.