
The AirTAC Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X20SU is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø20mm bore and 20mm stroke, 1/8" 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.
Equipped with a needle-set variable air cushion at both ends, the AirTAC MFC20X20SU smooths high-speed strokes to protect loads and cut noise. This JIS-standard round-body mini cylinder features a SUS304 stainless barrel and riveted aluminium covers, offering mild corrosion and washdown resistance. Its compact riveted body is notably shorter than an ISO 6432 cylinder for the same 20mm bore and 20mm stroke.
Delivering 157N of push force at 0.5MPa, this double-acting actuator is ideal for light-duty handling. The built-in magnet (-S) supports CMSG, DMSG, and EMSG switches for position sensing, while the U flat-end back cover suits tight mounting spaces. It provides a safe working load of roughly 94N and lifts about 8kg vertically with a 2:1 margin.
| Model | Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X20SU |
|---|---|
| Series | MFC JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 20 mm |
| Acting type | Double acting + cushion |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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 | 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 | 157 N | 132 N |
| 0.7 MPa | 220 N | 185 N |
| Max (@1.0 MPa) | 32 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). |
|---|---|
| 20 | Bore size in mm. |
| ×20 | 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 157N push force to swiftly eject small plastic mouldings. The variable air cushion silently decelerates the 20mm stroke end, preventing parts from bouncing.
A U flat-end back cover allows flush mounting on a conveyor frame to push light cartons. The SUS304 barrel withstands occasional washdown in food areas.
The built-in magnet works with EMSG sensors to confirm positioning. The riveted round body saves length compared to an ISO 6432 unit in compact sorting cells.
For lighter payloads, this 20mm bore provides 157N push at 0.5MPa; if your application requires more force, the next size up is the MFC25, delivering 245.3N at the same pressure. Since no larger MFC bore exists beyond 40mm, heavy loads demand a different cylinder family entirely. The variable air cushion is essential when cycling at high speeds or moving sensitive masses, as it decelerates the piston near stroke end to absorb shock.
Note that this cylinder cannot hold a load on air loss—the piston will drift, and the cushion is not a brake. For suspended loads, specify an external rod lock or pilot-operated check valve. The -S magnet enables CMSG/DMSG/EMSG sensors, and the 1/8" port matches the 20mm bore standard.
Quick checklist
This 20mm bore double-acting cylinder has a 1/8" port and an 8mm rod. It generates 157N push and 131.9N pull at 0.5MPa, 219.8N push and 184.7N pull at 0.7MPa, with a theoretical maximum of 32kgf at 1.0MPa.
No. The needle-set variable air cushion only decelerates the piston near the stroke end to reduce shock; it is not a brake or lock. The piston will drift on air loss, so use an external rod lock or pilot check valve for suspended loads.
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