Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X25SU
The AirTAC Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X25SU is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø20mm bore and 25mm 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
- Stroke25 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 MFC20X25SU
Tame high-speed end-of-stroke shock with the AirTAC MFC20X25SU, a JIS-standard round-body mini cylinder built with a SUS304 stainless barrel and riveted aluminium covers. A needle-set variable air cushion at both ends decelerates the load smoothly, protecting your equipment and cutting noise. The U flat-end rear cover keeps the overall footprint tight.
Delivering 157 N of push force at 0.5 MPa, this double-acting actuator provides a safe working load of roughly 94 N, or about 8 kg of vertical lift with a 2:1 margin. Because the -S suffix equips the piston with a magnet, you can mount CMSG, DMSG or EMSG switches for position sensing. For the same 20 mm bore and 25 mm stroke, the riveted MFC body is shorter than a standard ISO 6432 cylinder, saving valuable mounting length without conforming to that interface.
Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X25SU Technical Specifications
| Model | Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X25SU |
|---|---|
| Series | MFC JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 25 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 MFC20X25SU
| MFC | JIS-standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×25 | 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 MFC20X25SU Is Used
Light Part Ejection
Uses the 94 N safe working load to push small plastic or aluminium parts out of a machining fixture rapidly, relying on the air cushion to prevent harsh impacts.
Package Diverting
Handles the 8 kg vertical lift margin to actuate a lightweight routing gate on a packaging line, where the needle-set cushion ensures quiet stops.
Compact Sortation
Fits into tight transfer stations where the shorter-than-ISO-6432 body is critical, using the built-in magnet to confirm gate open and closed positions.
Is the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X25SU the Right Cylinder?
If 157 N of push at 0.5 MPa feels excessive for a delicate task, no smaller MFC bore exists, so you must throttle the pressure down. Conversely, if your load spikes, step up to the MFC25, which yields 245.3 N at 0.5 MPa. The variable air cushion is essential when cycling at high speeds or moving fragile payloads, as it absorbs kinetic energy near the stroke ends. Note that this cushion only decelerates the piston; it does not lock or hold the load. If air pressure drops, the rod will drift, so fit an external rod lock or pilot check valve for suspended loads. The 1/8" port accepts PT, G or NPT threads, and you can mount the cylinder using LB foot, FA flange, SDB pivot or 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 MFC20X25SU FAQ
This double-acting cylinder has a 20 mm bore and 25 mm stroke. It generates 157 N push and 131.9 N pull at 0.5 MPa, or 219.8 N push and 184.7 N pull at 0.7 MPa, with a theoretical maximum of 32 kgf at 1.0 MPa. The operating speed ranges from 30 to 800 mm/s, and it uses a 1/8" air port.
No. The variable air cushion at both ends only decelerates the piston near the stroke end; it is not a brake or lock. If air pressure drops or the valve is centred, the piston will drift. For vertical loads, you must install an external rod lock or pilot-operated check valve. The SUS304 stainless barrel provides washdown resistance, and the -S magnet supports CMSG, DMSG or EMSG sensors.
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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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