
The AirTAC Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X140CA is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 140mm 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, the AirTAC MFC40X140CA is a robust JIS-standard round-body mini cylinder built for demanding actuation. It features a SUS304 stainless barrel and riveted aluminium covers that resist mild corrosion and washdown environments. Unlike basic bumper models, this double-acting unit uses a needle-set variable air cushion at both ends to absorb end-of-stroke shock at high speeds, protecting your payload and cutting noise.
For the same bore and stroke, the MFC body is noticeably shorter than an ISO 6432 cylinder, saving valuable mounting length. Driven by a 1/4" port and a 16 mm rod with an M14x1.5 male thread, it yields a safe working load of roughly 377 N. In vertical use, it lifts about 32 kg with a 2:1 safety margin. This specific SKU lacks the -S magnet, so it cannot accept CMSG, DMSG, or EMSG sensors; choose the -S variant if you require position sensing.
| Model | Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X140CA |
|---|---|
| Series | MFC JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 140 mm |
| Acting type | Double acting + cushion |
| 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 | Variable air cushion, both ends |
| 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.
| MFC | JIS-standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×140 | 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.
Handles heavy carton diversion on high-speed belts, using the variable air cushion to stop the 140 mm stroke smoothly without jarring the mechanism.
Pushes finished metal parts out of a press, relying on 628.3 N of push force to clear heavy tooling safely.
Acts as a robust end-stop for loaded pallets on roller conveyors, absorbing the impact through the needle-adjustable air cushion.
If 628.3 N at 0.5 MPa is excessive, step down to the MFC32, which provides 402.2 N of push force. Since 40 mm is the largest bore in the MFC family, you cannot size up within this series. The adjustable air cushion is essential when cycling heavy loads at high speeds, as it decelerates the piston smoothly near stroke ends. Note that this cushion only slows the piston; it does not lock the load. If you need to hold position on air loss, install an external rod lock or pilot-operated check valve. This CA back-cover pivot unit mounts via its rear clevis; add an -S magnet version if you need switches.
Quick checklist
This 40 mm bore cylinder features a 1/4" port and a 16 mm rod with an M14x1.5 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.
No, this specific SKU does not include a magnet. You must select the -S variant to use CMSG, DMSG, or EMSG switches. The SUS304 stainless build resists mild corrosion, and the needle-set variable air cushion decelerates the piston at stroke ends but does not function as a brake.
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