
The AirTAC Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X450SCM is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø20mm bore and 450mm 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.
Delivering 157 N of push force at 0.5 MPa, this double-acting round-body mini cylinder handles a 450 mm stroke with precision. The riveted aluminium covers and SUS304 stainless barrel resist mild corrosion and washdown environments. For the same bore and stroke, the JIS-standard body is noticeably shorter than an ISO 6432 cylinder, saving valuable mounting length.
A built-in piston magnet (-S) supports CMSG, DMSG, and EMSG switches for position sensing, while the CM round-end rear cover completes the assembly. The variable air cushion at both ends lets you dial in a needle valve to absorb high-speed end-of-stroke shock, protecting your payload. Based on the 0.5 MPa thrust, it handles a safe working load of roughly 94 N, lifting about 8 kg vertically with a 2:1 margin.
| Model | Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X450SCM |
|---|---|
| Series | MFC JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 450 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. |
| ×450 | 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 94 N safe working load to push small plastic or aluminium components out of a machining centre quickly without damaging the surface.
Employs the 450 mm stroke to reach across a narrow belt, sorting lightweight boxes at high speed while the air cushion prevents end-stop banging.
Lifts an 8 kg access flap on a packaging line using the 2:1 safety margin, relying on the magnet for position feedback.
If 157 N push at 0.5 MPa is insufficient, step up to the MFC25, which provides 245.3 N; since 20 mm is the smallest bore in the MFC family, there is no smaller standard option. The adjustable air cushion is essential when cycling at high speeds or moving sensitive loads, as it decelerates the piston smoothly. Note that this cylinder does not hold position on air loss—the piston will drift—so add an external rod lock or pilot check valve for suspended loads. Mounting options include LB foot, FA flange, SDB pivot, and TC trunnion, and the 1/8" port matches the 20 mm bore standard.
Quick checklist
This 20 mm bore cylinder features a 1/8" port and an M8x1.25 male rod thread. It generates 157 N push and 131.9 N pull at 0.5 MPa, 219.8 N push and 184.7 N pull at 0.7 MPa, with a theoretical maximum of 32 kgf at 1.0 MPa.
No, the piston will drift if air is lost. The variable air cushion only decelerates the piston near the stroke end to reduce shock; it does not act as a brake. For vertical loads, you must use an external rod lock or pilot check valve. The SUS304 stainless build and -S magnet for CMSG/DMSG/EMSG sensors ensure reliable operation in mild washdowns.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
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