Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X250U
The AirTAC Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X250U is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 250mm stroke, 1/4" 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.
- BoreØ40 mm
- Stroke250 mm
- Port size1/4"
- Acting typeDouble acting + cushion
- Rod threadM14×1.5
- CushionVariable air cushion, both ends
About the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X250U
Delivering 628.3 N of push force at 0.5 MPa, this double-acting round-body mini cylinder tackles heavy loads with a 250 mm stroke. The JIS-standard riveted SUS304 stainless barrel and aluminium covers yield a body that is physically shorter than an ISO 6432 cylinder for the same bore and stroke, saving valuable mounting length. A flat-end U back cover equips this specific unit for direct rear mounting.
A defining trait of the MFC series is the variable air cushion at both ends, which uses a needle valve to absorb end-of-stroke shock at high speeds, protecting your payload. Based on the 0.5 MPa push rating, it handles a safe working load of roughly 377 N, or lifts about 32 kg vertically with a 2:1 safety margin. It uses a 1/4" port and a 16 mm rod, but because this SKU lacks the -S magnet, it cannot accept CMSG, DMSG or EMSG sensors.
Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X250U Technical Specifications
| Model | Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X250U |
|---|---|
| Series | MFC JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 250 mm |
| Acting type | Double acting + cushion |
| Port size | 1/4" |
| Rod thread | M14×1.5 |
| 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | 739 N |
| Max (@1.0 MPa) | 128 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 MFC40X250U
| MFC | JIS-standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | 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 MFC40X250U Is Used
Heavy Carton Diversion
Pushes loaded pallets or heavy cartons at high speed across a transfer line, relying on the variable air cushion to prevent harsh end-of-stroke impacts.
Bulk Material Pressing
Holds down bulky packaging materials with 628.3 N of thrust, using the flat U back cover for stable direct rear mounting on the machine frame.
Vertical Lift Gates
Raises and lowers access gates or heavy doors, lifting around 32 kg safely with a 2:1 margin while the needle-set cushion protects the mechanism.
Is the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X250U the Right Cylinder?
If 628.3 N at 0.5 MPa is too much force, step down to the MFC32, which provides 402.2 N; since 40 mm is the largest bore in the MFC family, you would need to explore a different AirTAC series for higher thrust. The adjustable air cushion is essential when cycling at high speeds or moving heavy masses, as it decelerates the piston smoothly. Note that this cushion only eases the stop and does not lock the rod; if you need to hold a load vertically during air loss, install an external rod lock or pilot check valve. Furthermore, without the -S magnet option, this cylinder cannot support magnetic switches.
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 MFC40X250U FAQ
This 40 mm bore cylinder features a 1/4" port and a 16 mm rod with an M14x1.5 male thread. It generates 628.3 N push and 527.8 N pull at 0.5 MPa, increasing to 879.6 N push and 738.9 N pull at 0.7 MPa, with a theoretical maximum of 128.1 kgf at 1.0 MPa.
No, this specific SKU does not include a magnet, so it cannot accept CMSG, DMSG or EMSG switches; you would need the -S variant for sensing. The cylinder features a SUS304 stainless barrel for washdown resistance and a variable air cushion at both ends to decelerate high-speed loads.
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