Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X400CM
The AirTAC Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X400CM 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 MFC20X400CM
Soaking up high-speed end-of-stroke shock is the core strength of the AirTAC MFC20X400CM, a JIS-standard round-body mini cylinder built for a 20 mm bore and 400 mm stroke. The variable air cushion at both ends lets you dial in the deceleration needle to protect payloads, a distinct upgrade over fixed bumper designs. Its SUS304 stainless barrel and riveted aluminium covers resist mild corrosion and washdown environments. For the same bore and stroke, this riveted construction is notably shorter than an ISO 6432 cylinder, saving valuable mounting length without conforming to that standard.
In the 20 mm force class, this double-acting actuator generates 157 N of push and 131.9 N of pull at 0.5 MPa, peaking at a theoretical 32 kgf at 1.0 MPa. Operating on a 1/8" port with an 8 mm rod, it yields a safe working load of roughly 94 N, or about 60 percent of the 0.5 MPa push figure. This translates to lifting approximately 8 kg vertically with a 2:1 safety margin. The CM round-end rear cover simplifies direct rear pivot mounting. Because this specific SKU lacks the -S magnet option, it cannot accept CMSG, DMSG, or EMSG position switches.
Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X400CM Technical Specifications
| Model | Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X400CM |
|---|---|
| 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 MFC20X400CM
| 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 MFC20X400CM Is Used
Light Package Diverting
Uses the 157 N push force at 0.5 MPa to swiftly deflect small cartons on a high-speed sorting line, relying on the tuned air cushion to prevent harsh slams at the end of the 400 mm travel.
Small Component Ejection
Ejects lightweight machined parts from a lathe, where the variable cushion smoothly decelerates the 8 mm rod to protect delicate product finishes during rapid cycling.
Film Roll Pushing
Shifts packaging film rolls laterally, taking advantage of the SUS304 stainless barrel for washdown resistance and the CM rear cover for a compact pivot joint.
Is the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X400CM the Right Cylinder?
When sizing this 20 mm bore, consider stepping up to the MFC25 if your payload exceeds the 157 N push force at 0.5 MPa, as the larger bore delivers 245.3 N. Conversely, since 20 mm is the smallest available MFC bore, you would need to look outside the series for lighter duties. The variable air cushion is essential when cycling at high speeds 30-800 mm/s with heavy loads, allowing you to tune the needle to eliminate end-of-stroke banging. Note that the cushion only decelerates the piston near the stroke end; it is not a brake. If your application must hold position during air loss or valve centering, the piston will drift, requiring an external rod lock or pilot-operated check valve. For mounting flexibility, pair the CM round-end cover with LB foot, FA flange, SDB pivot, or TC trunnion brackets, and remember that magnetic sensing requires the -S variant.
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 MFC20X400CM FAQ
This 20 mm bore double-acting cylinder uses a 1/8" port and an 8 mm rod. It delivers 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 force of 32 kgf at 1.0 MPa.
This specific SKU does not have 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 restrict exhaust air, decelerating the piston to reduce shock at high speeds, but it does not lock or hold the load.
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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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