
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF40X100SCA is a genuine double acting JIS-standard round-body mini air cylinder with a Ø40mm bore and 100mm 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 positioning in tight spaces. 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 mechanical life. For the same 40 mm bore and 100 mm stroke, the MF body is noticeably shorter than an ISO 6432 cylinder, providing a real packaging advantage in dense machinery.
Equipped with a built-in magnet (-S) for CMSG, DMSG, or EMSG switches, this unit also features a CA rear pivot cover. The fixed TPU bumper pads and front-cover anti-impact pad soften stroke-end impact by decelerating the piston, though they do not provide adjustable cushioning. For real-world sizing, plan for about 377 N of usable work at 0.5 MPa, which safely lifts roughly 32 kg vertically with a 2:1 margin.
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF40X100SCA |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 100 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. |
| ×100 | 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.
Uses the 628.3 N push force at 0.5 MPa to knock stamped metal blanks out of a die, relying on the SUS304 barrel to withstand occasional cutting fluid splash.
Swings via the CA pivot mount to deflect heavy cartons off a main conveyor belt, benefiting from the compact JIS body length to fit between tight roller gaps.
Acts as a robust pneumatic stop for incoming pallets, absorbing the impact via fixed TPU bumper pads while the integrated magnet triggers DMSG sensors for position feedback.
When sizing this 40 mm bore unit, compare its 628.3 N push force at 0.5 MPa against the smaller MF32, which yields 402.2 N. Since 40 mm is the largest available MF bore, moving beyond this capacity requires a different cylinder family entirely. If your fixture demands a shorter stroke, the MF40X75 offers identical thrust in a more compact footprint.
The included CA pivot mount is ideal for angular articulation, but remember that a standard double-acting cylinder drifts when air is removed or the valve is centred. The TPU bumpers only decelerate the stroke end and will not act as a brake. To suspend a load safely mid-cycle, integrate an external rod lock or a pilot-operated check valve.
Quick checklist
At 0.5 MPa it provides 628.3 N push and 527.8 N pull. At 0.7 MPa it provides 879.6 N push and 738.9 N pull. The theoretical maximum force is 128.1 kgf at 1.0 MPa. The air port is 1/4" and the male rod thread is M14x1.5.
No, the piston will drift if air is lost or the valve is centred. The fixed TPU bumper pads only decelerate the stroke end and do not function as a locking brake. To maintain a vertical load, you must install an external rod lock or a pilot-operated check valve.
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