Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X20U
The AirTAC Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X20U 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.
- BoreØ20 mm
- Stroke20 mm
- Port size1/8"
- Acting typeDouble acting + cushion
- Rod threadM8×1.25
- CushionVariable air cushion, both ends
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X20U
Soaking up high-speed end-of-stroke shock via a needle-set variable air cushion at both ends, this double-acting JIS-standard round-body mini cylinder protects payloads far better than a fixed bumper. The SUS304 stainless barrel and riveted aluminium covers resist mild corrosion and washdown, while the flat-end U back cover suits tight rear-clearance installations. For the same 20 mm bore and 20 mm stroke, the body is notably shorter than an ISO 6432 cylinder.
In the 20 mm force class it yields a push of 157 N and a pull of 131.9 N at 0.5 MPa. This translates to a safe working load of roughly 94 N, letting you lift about 8 kg vertically with a 2:1 safety margin. It uses an 8 mm rod, an M8x1.25 male thread, and a 1/8" port. Note this SKU lacks the -S magnet, so it cannot host CMSG, DMSG or EMSG switches.
Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X20U Technical Specifications
| Model | Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X20U |
|---|---|
| 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.
Theoretical Output Force (Ø20mm)
| 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.
Model Code: Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X20U
| 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.
Where the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X20U Is Used
Light-Part Ejection
Ejecting small moulded components at high speed where the variable air cushion silently decelerates the 20 mm rod, preventing the 157 N push force from damaging the parts.
Carton Flap Folding
Folding light cardboard flaps on a packaging line; the flat-end U cover allows flush mounting against the machine frame within a tight 20 mm stroke envelope.
Lab Dispenser Actuation
Driving a precision fluid dispenser where the SUS304 stainless barrel withstands occasional chemical splashes and the compact JIS body saves valuable lab bench space.
Is the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X20U the Right Cylinder?
When sizing this 20 mm bore, step up to the MFC25 if you need more force—it delivers 245.3 N of push at 0.5 MPa versus 157 N here. Since 20 mm is the smallest available MFC bore, there is no smaller option in the range; if your load is very light, confirm the 157 N push is sufficient without over-cycling. The variable air cushion is essential if you are running near the 800 mm/s speed limit or moving a sensitive payload.
Because this is a plain double-acting cylinder, the piston will drift if air pressure drops or the valve is centred—the cushion only decelerates near the stroke end and acts as neither a brake nor a lock. For suspended or vertical loads that must hold position on air loss, add an external rod lock or a pilot-operated check valve. Mounting options include LB foot, FA flange, SDB pivot, and TC trunnion brackets.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Back cover (CA/U/CM) & mount (LB/FA/SDB/TC)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Do not dismantle the riveted front/back covers.
- check Use correct back cover (CA/U/CM) & mount (LB/FA/SDB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X20U FAQ
This double-acting 20 mm bore cylinder has a 1/8" port and an 8 mm rod. It generates 157 N of push and 131.9 N of pull at 0.5 MPa, increasing to 219.8 N push and 184.7 N pull at 0.7 MPa. The theoretical maximum force is 32 kgf at 1.0 MPa.
No, this specific SKU does not include the -S magnet option, so it cannot accommodate CMSG, DMSG, or EMSG switches. You would need the -S variant for position sensing. The cylinder features a variable air cushion at both ends to absorb shock, but this only decelerates the piston and does not lock the load.
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