Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X250SU
The AirTAC Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X250SU 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 MFC20X250SU
Soaking up high-speed shock with a needle-set variable air cushion at both ends, the AirTAC MFC20X250SU is a JIS-standard round-body mini cylinder built for demanding 250 mm strokes. The SUS304 stainless barrel and riveted aluminium covers resist mild corrosion and washdown, while the flat-end U back cover keeps the rear profile clean for tight mounting. For the same bore and stroke, this riveted body is noticeably shorter than an ISO 6432 cylinder, saving valuable machine space.
Driven by filtered air at 0.15-1.0 MPa, this 20 mm bore double-acting actuator pushes with 157 N and pulls with 131.9 N at 0.5 MPa. The integrated -S piston magnet supports CMSG, DMSG and EMSG switches for position sensing, and the 1/8" port feeds a 30-800 mm/s speed range. Factoring a 60% safety margin on the 0.5 MPa push force yields a safe working load of about 94 N, or roughly 8 kg of vertical lift with a 2:1 weight balance.
Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X250SU Technical Specifications
| Model | Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X250SU |
|---|---|
| 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 MFC20X250SU
| 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 MFC20X250SU Is Used
Package Diverting
Pushes light cartons at high cycle rates on a sorting line; the needle-set air cushion absorbs the end-of-stroke shock to protect the 8 kg load.
Small Part Ejection
Ejects machined components from a fixture over 250 mm, using the 94 N safe working capacity and flat-end U cover for flush rear mounting.
Bin Gate Actuation
Opens and closes light hopper gates where the SUS304 stainless barrel withstands mildly humid or washdown environments.
Is the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X250SU the Right Cylinder?
When sizing this 20 mm bore unit, step down if forces are too high or up to the MFC25 if you need more thrust—the MFC25 delivers 245.3 N at 0.5 MPa compared to this model's 157 N. The variable air cushion is essential when driving heavier loads at high speeds, as it decelerates the piston near stroke end to prevent impact damage. Note that the cushion only slows the piston and does not lock it; if air pressure drops, the rod will drift. To hold a load securely on air loss, fit an external rod lock or 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 MFC20X250SU FAQ
This 20 mm bore cylinder has a 1/8" port and an M8x1.25 male rod thread. At 0.5 MPa it pushes with 157 N and pulls with 131.9 N. At 0.7 MPa it pushes with 219.8 N and pulls with 184.7 N. The theoretical maximum force is 32 kgf at 1.0 MPa.
No, the variable air cushion only decelerates the piston near the stroke end to reduce shock; it is not a brake or lock. If air pressure drops or the valve is centred, the piston will drift. To maintain a vertical load, you must add an external rod lock or a pilot-operated check valve.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X250SU
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.