
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF32X105CM is a genuine double acting JIS-standard round-body mini air cylinder with a Ø32mm bore and 105mm 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.
Generating 402.2 N of push force at 0.5 MPa, this double-acting JIS-standard round-body mini cylinder features a SUS304 stainless barrel and riveted aluminium covers. The 32 mm bore pairs with a 105 mm stroke and a 1/4 inch port, while the CM round-end back cover simplifies direct pivot mounting. Fixed TPU bumper pads and a front-cover anti-impact pad work together to decelerate the piston at stroke extremes.
Because the riveted stainless body is physically shorter than an ISO 6432 cylinder of identical bore and stroke, it drops into tighter machine envelopes. The piston relies on a two-way oil-retaining seal for long service life. Plan for roughly 241 N of actual work at 0.5 MPa, which translates to lifting about 20.5 kg vertically with a 2:1 safety margin.
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF32X105CM |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 105 mm |
| Acting type | Double acting |
| 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 | 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 | 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.
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 32 | Bore size in mm. |
| ×105 | 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 lightweight sorting flap on a logistics conveyor using 402.2 N of push force, with the CM rear pivot absorbing hinge stress.
Secures aluminium extrusions in a machining fixture, where the shorter JIS body leaves room for multi-tool spindles.
Drives a mechanical arm to tuck top flaps on a case erector, relying on the fixed TPU pads to absorb rapid cycle impacts.
When sizing this 32 mm bore, the smaller MF25 provides 245.3 N of push at 0.5 MPa, whereas stepping up to the MF40 yields 628.3 N. The 105 mm stroke is well within the 500 mm standard limit, but at this extension you should watch for side-loading to avoid bending the Ø12 mm rod. Since this specific SKU lacks the -S magnet, it cannot accept CMSG, DMSG, or EMSG position switches; order an -S variant if you need sensing.
Remember that the bumper pads only soften end-of-stroke impacts; they do not function as a brake. If your application must prevent drift on air loss or a centred valve, install an external pilot check valve or rod lock.
Quick checklist
This 32 mm bore double-acting cylinder uses a 1/4 inch port. It generates 402.2 N push and 345.6 N pull at 0.5 MPa, 563 N push and 483.8 N pull at 0.7 MPa, with a theoretical maximum of 82 kgf at 1.0 MPa.
No, this specific SKU lacks the internal magnet, so it cannot accept CMSG, DMSG, or EMSG switches. You would need the -S variant for position sensing. The unit features a CM round-end back cover and is shorter than an ISO 6432 cylinder.
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