Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X250U
The AirTAC Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X250U is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø20mm bore and 250mm 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
- Stroke250 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 MFC20X250U
Taming high-speed end-of-stroke impacts is the core strength of the AirTAC MFC20X250U, a JIS-standard round-body mini cylinder. It features a variable air cushion at both ends that lets you dial in the deceleration to protect loads, replacing the harsh fixed bumper found on standard MF types. Built with a SUS304 stainless barrel and riveted aluminium covers, it resists mild corrosion and washdown while maintaining a body that is physically shorter than an ISO 6432 cylinder for the same 20mm bore and 250mm stroke.
This double-acting actuator pushes with 157 N and pulls with 131.9 N at 0.5 MPa, yielding a safe working load of roughly 94 N (about 60% of the push force) or a vertical lift capacity of approximately 8 kg with a 2:1 margin. It uses an 8mm rod, an M8x1.25 male thread, and a 1/8" port. This specific SKU lacks the -S magnet, so it cannot accept CMSG, DMSG, or EMSG sensors; it is fitted with a U flat-end rear cover for direct mounting.
Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X250U Technical Specifications
| Model | Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X250U |
|---|---|
| Series | MFC JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 250 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 MFC20X250U
| MFC | JIS-standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×250 | 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 MFC20X250U Is Used
Light Package Diverting
Uses the 157N push force to push small parcels off a high-speed belt, relying on the adjustable air cushion to stop the 250mm stroke smoothly without bouncing the load.
Small Component Ejection
Ejects lightweight machined parts from a press area, where the needle-set deceleration protects delicate tooling at rapid cycle rates.
Carton Flap Folding
Drives a folding arm on a packaging line, using the SUS304 stainless body to withstand occasional washdowns while folding flaps at up to 800 mm/s.
Is the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X250U the Right Cylinder?
When sizing this 20mm bore unit, step down if your load is very light, or move up to the MFC25 which provides 245.3 N of push force at 0.5 MPa if you need more thrust. The variable air cushion is essential when cycling at high speeds or moving heavy masses, as it prevents destructive shock at the stroke ends. Note that the cushion only decelerates the piston near the end of travel; it does not function as a brake. If your application must hold position during air loss or valve centering, the piston will drift, so you must add an external rod lock or pilot-operated check valve. For mounting flexibility, you can pair the U back cover with LB foot, FA flange, SDB pivot, or TC trunnion brackets, and remember to select an -S magnet variant if you need position sensing.
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 MFC20X250U FAQ
This 20mm bore, double-acting cylinder has a 1/8" port and an 8mm rod. It generates a push force of 157 N and a pull force of 131.9 N at 0.5 MPa. At 0.7 MPa, the push increases to 219.8 N and the pull to 184.7 N. The theoretical maximum force is 32 kgf at 1.0 MPa.
This specific SKU does not include a magnet, so it cannot accept CMSG, DMSG, or EMSG switches; you would need the -S variant for sensing. The variable air cushion at both ends uses a needle valve to trap and exhaust air to smoothly decelerate the piston near stroke end, reducing shock and noise at high speeds.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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