
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF40X90SCA is a genuine double acting JIS-standard round-body mini air cylinder with a Ø40mm bore and 90mm 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.
Delivering 628.3 N of push force at 0.5 MPa, this 40 mm bore double-acting actuator is built around a SUS304 stainless-steel barrel with riveted aluminium covers. The rolling-packed structure shrinks the overall footprint, making the body physically shorter than a comparable ISO 6432 cylinder for the exact same 90 mm stroke. A 1/4" port feeds the chamber, while the piston relies on a heterogeneous two-way seal that retains an oil film for prolonged operational life.
Because the code includes an S, this unit carries a built-in magnet for CMSG, DMSG, or EMSG position switches. Fixed TPU bumper pads and a front-cover anti-impact pad soften the end-of-stroke impact without offering adjustable cushioning. Plan for roughly 377 N of actual work at 0.5 MPa, which means it can safely lift a 32 kg vertical load with a 2:1 safety margin.
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF40X90SCA |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 90 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M14×1.5 |
| 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 | Fixed TPU bumper pads |
| 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 | 628 N | 528 N |
| 0.7 MPa | 880 N | 739 N |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×90 | 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.
Swings a routing gate on a packaging line using the CA pivot mount, utilizing the 628.3 N thrust to push heavy cartons onto secondary tracks.
Ejects formed aluminum parts from a stamping die, relying on the fixed TPU pads to absorb the impact of rapid 90 mm strokes without damaging the machinery.
Acts as a robust pneumatic stop for loaded pallets, where the SUS304 construction resists moisture and the 32 kg safe lift capacity easily halts momentum.
When sizing this 40 mm bore, stepping down to the MF32 drops the 0.5 MPa push force to 402.2 N, while the 40 mm bore tops out the MF range at 628.3 N with no larger standard option available. If your process demands a held load during air loss or valve centering, remember this cylinder will drift; the TPU pads only decelerate the stroke end and act as neither a brake nor a lock. You must add an external rod lock or a pilot-operated check valve for secure positioning.
This specific configuration features a CA pivot back cover for articulated mounting and a male M14x1.5 rod thread. The integrated magnet allows seamless sensor placement. For a 90 mm stroke, side-load stress on the 16 mm rod is minimal, but always verify that your clevis alignment prevents rod bending on extension.
Quick checklist
At 0.5 MPa it provides 628.3 N push and 527.8 N pull. At 0.7 MPa it yields 879.6 N push and 738.9 N pull. The theoretical maximum force is 128.1 kgf at 1.0 MPa, and the air port is 1/4".
The CA rear cover provides a pivot point for articulated clevis mounting. Furthermore, the JIS-standard round body is physically shorter than an ISO 6432 cylinder for the same 40 mm bore and 90 mm stroke, saving valuable space in tight fixtures.
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