
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF32X65SU is a genuine double acting JIS-standard round-body mini air cylinder with a Ø32mm bore and 65mm 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 402.2 N of push force at 0.5 MPa, this 32 mm bore double-acting actuator features a SUS304 stainless steel barrel with riveted aluminium covers that resist mild corrosion and washdown. Because the JIS-standard round body is physically shorter than a comparable ISO 6432 cylinder for the same 65 mm stroke, it fits tighter machinery frames. The piston relies on a two-way oil-retaining seal for long life, while fixed TPU bumper pads and a front-cover anti-impact pad soften stroke-end impact. This specific SKU includes a built-in magnet and a U-style flat-end back cover.
For practical sizing, plan your fixture to handle about 241 N of real work at 0.5 MPa, which represents a safe 60 percent load margin. Alternatively, it can lift a 20.5 kg part vertically when applying a 2:1 safety factor to the 0.5 MPa thrust. Air connects via a 1/4 inch port, and the 12 mm rod uses an M10x1.25 male thread. CMSG, DMSG, or EMSG sensors snap directly onto the grooved body.
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF32X65SU |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 65 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. |
| ×65 | 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 routing gate on a packaging line, using the 402.2 N thrust at 0.5 MPa to push cartons onto secondary lanes without stalling.
Secures aluminium housings in a CNC milling fixture, where the compact JIS body length saves valuable Z-axis clearance compared to ISO 6432 units.
Raises 20 kg component trays between conveyor tiers, safely operating within a 2:1 load margin using the integrated magnet for position feedback.
If 245.3 N from the smaller MF25 bore is insufficient for your tooling, this 32 mm option provides a solid mid-range upgrade, while stepping up to the MF40 yields 628.3 N for heavier fixtures. Keep in mind that a standard double-acting cylinder drifts if air pressure drops or the valve is centred; the TPU bumpers only decelerate the stroke end and will not lock the load, so add an external rod lock or pilot check valve for vertical safety. The U flat-end rear cover suits direct back-mounting, and you can pair it with LB foot, FA flange, SDB pivot, or TC trunnion brackets. With a 65 mm stroke, ensure your front-end tooling is guided to prevent rod side-loading and premature seal wear.
Quick checklist
At 0.5 MPa it provides 402.2 N push and 345.6 N pull. At 0.7 MPa it provides 563 N push and 483.8 N pull. The theoretical maximum force is 82 kgf at 1.0 MPa. The air port is 1/4 inch, the rod is 12 mm, and the male rod thread is M10x1.25.
No, the base MF uses fixed TPU bumper pads that decelerate the stroke end but cannot be tuned. For adjustable air cushioning you need the MFC variant. Additionally, this unit is shorter than an ISO 6432 cylinder for the same stroke, uses a SUS304 stainless barrel, and includes a magnet for CMSG/DMSG/EMSG sensors.
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