
The AirTAC Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X500SU is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø20mm bore and 500mm 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 MFC20X500SU mini cylinder handles a 500 mm stroke with a variable air cushion at both ends. Turning the cushion needle soaks up high-speed end-of-stroke shock, protecting the load and cutting noise. The SUS304 stainless round body with riveted aluminium covers resists mild corrosion and washdown.
For the same bore and stroke, this JIS-standard body is shorter than an ISO 6432 cylinder, saving mounting length. It carries a built-in magnet for CMSG, DMSG or EMSG sensors, and uses a U flat-end rear cover. With a safe working load around 94 N, it lifts about 8 kg vertically with a 2:1 margin.
| Model | Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X500SU |
|---|---|
| Series | MFC JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 500 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. |
| ×500 | 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.
Extends a 500 mm stroke to transfer small parts between conveyor zones, using the 157 N push force to slide light trays smoothly.
Cycles a gating mechanism rapidly where the adjustable air cushion absorbs end-of-stroke shock, protecting the 8 mm rod from impact damage.
Positions a fluid dispense valve vertically, lifting an 8 kg payload with a 2:1 safety margin while the SUS304 barrel withstands splashes.
If 157 N at 0.5 MPa is insufficient, step up to the MFC25 bore, which provides 245.3 N of push force. If you need less force, there is no smaller MFC bore available. The variable air cushion is essential for this 500 mm stroke when running at high speeds or moving heavy loads, as it decelerates the piston smoothly.
Note that the air cushion only decelerates near the stroke end and does not act as a brake; the piston will drift on air loss, so add an external rod lock or pilot check valve for holding. This U flat-end model includes the -S magnet for position sensing and features a 1/8 inch port.
Quick checklist
This 20 mm bore cylinder has a 500 mm stroke and a 1/8 inch port. 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 on air loss. The variable air cushion only decelerates the piston near the stroke end and is not a lock or brake. For vertical load holding, install an external rod lock or pilot-operated check valve.
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.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.