
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF40X500SCA is a genuine double acting JIS-standard round-body mini air cylinder with a Ø40mm bore and 500mm 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 double-acting JIS-standard round-body mini cylinder handles heavy-duty automation with a 500 mm stroke. The SUS304 stainless steel barrel and riveted aluminium covers resist mild corrosion and washdown, while the piston's two-way seal retains an oil film for long service life. For the same bore and stroke, the MF body is notably shorter than an ISO 6432 cylinder, saving valuable mounting length in tight machinery.
Equipped with a built-in magnet for position sensing, this unit accepts CMSG, DMSG, or EMSG switches. Fixed TPU bumper pads and a front-cover anti-impact pad soften stroke-end impact by decelerating the piston. For practical sizing, plan for about 377 N of real work at 0.5 MPa, which means it lifts roughly 32 kg vertically with a 2:1 safety margin. The 1/4" port and M14x1.5 male rod thread ensure robust airflow and mounting for this 40 mm bore class.
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF40X500SCA |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 500 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. |
| ×500 | 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.
Drives empty pallets into a loading zone using the full 628.3 N push force, where the 500 mm stroke easily spans the required conveyor offset.
Lowers heavy feed hoppers weighing up to 32 kg, relying on the CA pivot back cover to absorb angular misalignment during the downward cycle.
Swings a sorting diverter arm across a packaging line, using the built-in magnet and DMSG switches to confirm gate position at each stroke end.
When sizing this 40 mm bore unit, stepping down to the MF32 yields 402.2 N of push force at 0.5 MPa, whereas the MF40 is the largest available in the series, making it the top choice for maximum thrust within this JIS family. If your application requires holding a load vertically during air loss or valve centering, note that the piston will drift; the bumpers only decelerate the stroke end and do not act as a brake. An external rod lock or pilot-operated check valve is required for secure position holding.
This specific configuration includes a CA pivot back cover for articulated mounting and an integrated magnet for CMSG/DMSG/EMSG sensors. Because it operates at the 500 mm maximum standard stroke limit, ensure your mounting arrangement—such as an FA flange or TC trunnion—adequately supports the rod against side loads to prevent bending over that extended distance.
Quick checklist
This 40 mm bore cylinder features a 1/4" air port and an M14x1.5 male rod thread. It generates 628.3 N push and 527.8 N pull at 0.5 MPa, 879.6 N push and 738.9 N pull at 0.7 MPa, with a theoretical maximum force of 128.1 kgf at 1.0 MPa.
The MF is a JIS-standard round-body cylinder that is physically shorter than an ISO 6432 cylinder for the same bore and stroke, saving mounting space, but it does not conform to ISO 6432 standards. Additionally, the fixed TPU bumper pads only decelerate the stroke end; they do not lock or hold the load if air pressure is lost, so an external rod lock is needed for position holding.
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