Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X400U
The AirTAC Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X400U is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø20mm bore and 400mm 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
- Stroke400 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 MFC20X400U
Delivering 157 N of push force at 0.5 MPa, this double-acting JIS-standard round-body mini cylinder handles a 400 mm stroke with a flat-end U rear cover. Its SUS304 stainless barrel and riveted aluminium covers resist mild corrosion, while the male M8x1.25 rod thread and 1/8" port simplify integration. For the same bore and stroke, the MFC body is shorter than an ISO 6432 cylinder, saving valuable mounting length.
The defining feature is the variable air cushion at both ends, which uses a needle valve to soak up high-speed end-of-stroke shock, protecting the load and cutting noise. Based on the 0.5 MPa thrust, it provides a safe working load of roughly 94 N and lifts about 8 kg vertically with a 2:1 margin. Note this SKU lacks the -S magnet, so it cannot take CMSG, DMSG or EMSG switches.
Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X400U Technical Specifications
| Model | Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X400U |
|---|---|
| Series | MFC JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 400 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 MFC20X400U
| MFC | JIS-standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×400 | 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 MFC20X400U Is Used
Long-Reach Transfer
Extends 400 mm to push lightweight workpieces between conveyor lanes without slamming at the end of travel.
High-Speed Diverting
Uses the adjustable air cushion to decelerate the 8 kg vertical load smoothly, reducing impact noise on packaging lines.
Compact Ejector
Fits into tight machine cells where its shorter-than-ISO-6432 body length saves space while ejecting parts.
Is the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X400U the Right Cylinder?
If 157 N of push at 0.5 MPa is insufficient, step up to the MFC25, which provides 245.3 N; there is no smaller MFC bore. The variable air cushion matters most when cycling this 400 mm stroke at high speed or moving heavy masses, as it decelerates the piston smoothly. It is not a lock or brake, and the piston will drift on air loss, so use an external rod lock or pilot check valve for held loads. Mount via LB foot, FA flange, SDB pivot or TC trunnion, and choose the -S 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 MFC20X400U FAQ
This 20 mm bore cylinder has a 1/8" port and generates 157 N push / 131.9 N pull at 0.5 MPa, and 219.8 N push / 184.7 N pull at 0.7 MPa. Its theoretical maximum force is 32 kgf at 1.0 MPa.
No, this specific SKU does not include the -S magnet, so it cannot host CMSG, DMSG or EMSG switches. You would need the -S variant for position sensing. The SUS304 stainless build and variable air cushion are present on this model.
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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.
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Most inquiries answered within 7-8 hours.
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