
The AirTAC Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X50U is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø20mm bore and 50mm 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.
Soaking up high-speed end-of-stroke shock with a needle-set variable air cushion at both ends, this double-acting JIS-standard round-body mini cylinder protects your payload. The SUS304 stainless barrel and riveted aluminium covers resist mild corrosion and washdown. For the same 20 mm bore and 50 mm stroke, the riveted rolling-packed body is shorter than an ISO 6432 cylinder, saving valuable mounting length.
Operating at 30-800 mm/s on a 1/8" port, the 8 mm rod (M8x1.25 male thread) generates 157 N push and 131.9 N pull at 0.5 MPa. This translates to a safe working load of about 94 N, or lifting roughly 8 kg vertically with a 2:1 safety margin. The U flat-end rear cover streamlines flush mounting. Note this SKU lacks a magnet, so it cannot take CMSG/DMSG/EMSG sensors; specify the -S variant if you need position detection.
| Model | Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X50U |
|---|---|
| Series | MFC JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 50 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. |
| ×50 | 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.
Shoots small plastic parts out of a mould at speed; the variable air cushion absorbs the end-of-stroke impact to protect the 8 kg payload.
Pushes light cartons off a belt where the 94 N safe working load is plenty, using the U flat-end cover for tight side mounting.
Seats delicate electronic connectors smoothly; the needle adjustment dials in deceleration to prevent crushing at high cycle rates.
Size both ways before buying: if 157 N push at 0.5 MPa is insufficient, step up to the MFC25 (245.3 N); since 20 mm is the smallest MFC bore, there is no smaller option. Choose this adjustable air cushion model over a fixed bumper mini when cycling at high speeds or moving sensitive masses that need smooth deceleration. A plain cylinder does not hold its load on air loss—the piston drifts and the cushion only decelerates near stroke end, so fit an external rod lock or pilot check valve for suspended loads. Mount via LB foot, FA flange, SDB pivot or TC trunnion, and remember only the -S magnet version supports switches.
Quick checklist
This 20 mm bore cylinder has a 1/8" port and an 8 mm rod with an M8x1.25 male 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 max of 32 kgf at 1.0 MPa.
No, this specific SKU does not include a magnet, so it cannot accept CMSG, DMSG or EMSG switches. You must order the -S variant for position sensing. The SUS304 stainless build and adjustable air cushion are standard.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
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