Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X45SU
The AirTAC Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X45SU is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø20mm bore and 45mm 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
- Stroke45 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 MFC20X45SU
Soaking up end-of-stroke shock at high speed, the MFC20X45SU relies on a needle-set variable air cushion at both ends rather than a simple fixed bumper. This JIS-standard round-body mini cylinder features a SUS304 stainless barrel and riveted aluminium covers, giving it a shorter overall body than an ISO 6432 cylinder of the same 20 mm bore and 45 mm stroke.
The double-acting piston generates 157 N of push force at 0.5 MPa through its 1/8" port, yielding a safe working load of roughly 94 N. It also provides a vertical lift capacity of about 8 kg when applying a 2:1 safety margin. Because this SKU includes the -S magnet, it is fully ready for CMSG, DMSG or EMSG position sensing.
Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X45SU Technical Specifications
| Model | Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X45SU |
|---|---|
| Series | MFC JIS mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 45 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 MFC20X45SU
| MFC | JIS-standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×45 | 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 MFC20X45SU Is Used
Small Parts Ejection
Cushions the rapid extension of a 45 mm stroke to safely eject light components without slamming the tooling into the front cover.
Package Diverting
Provides a reliable 8 kg vertical lift margin for actuating lightweight diverter arms on packaging lines at high cycle rates.
Compact Clamping
Fits into tight machinery envelopes thanks to its shorter-than-ISO-6432 body, securely clamping small workpieces with 157 N of force.
Is the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC20X45SU the Right Cylinder?
If 94 N is insufficient, step up to the MFC25 bore which provides 245.3 N of push at 0.5 MPa; the 20 mm bore is the smallest available option in this series. The variable air cushion is essential when driving heavier masses at high velocities, as it decelerates the load smoothly before the end of the stroke.
This configuration uses a U flat-end back cover, making it ideal for direct rear mounting. Note that the cushion only decelerates the piston and does not function as a lock; if you need to hold a load vertically during air loss, install an external rod lock or pilot-operated check valve.
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 MFC20X45SU FAQ
This 20 mm bore cylinder features a 1/8" port and an M8x1.25 male rod thread. 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 of 32 kgf at 1.0 MPa.
No, the variable air cushion only decelerates the piston near the stroke end and acts purely as a shock absorber, never a brake. To prevent drift on air loss, you must use an external rod lock or pilot check valve. The SUS304 stainless build resists mild corrosion, and the -S magnet enables CMSG or DMSG sensors.
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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.
Fast Reply
Most inquiries answered within 7-8 hours.
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