Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X250SCM
The AirTAC Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X250SCM 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 MFC40X250SCM
Delivering 628.3 N of push force at 0.5 MPa, this double-acting 40 mm bore mini cylinder is built for rapid cycling. A variable air cushion at both ends lets you dial in the needle valve to absorb high-speed end-of-stroke shock, protecting your payload and cutting workshop noise. The SUS304 stainless barrel and riveted aluminium covers resist mild corrosion and washdown environments.
For the same bore and stroke, this JIS-standard round-body unit is noticeably shorter than an ISO 6432 cylinder, saving valuable mounting length. Equipped with a 1/4 inch port, a 16 mm rod, and a CM round-end rear cover, it handles a safe working load of about 377 N. Because the SKU includes the -S magnet, it is fully ready for CMSG, DMSG, or EMSG position switches.
Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X250SCM Technical Specifications
| Model | Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X250SCM |
|---|---|
| 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 MFC40X250SCM
| 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 MFC40X250SCM Is Used
Package Diverting
Shifts heavy cartons at high speed on a sorting line, using the adjustable air cushion to stop the 250 mm stroke smoothly without jarring the products.
Vertical Material Lift
Lifts roughly 32 kg of raw stock vertically with a 2:1 safety margin, relying on the 628.3 N push force to raise and lower the load reliably.
Press Ejection
Ejects dense formed parts from a machine bed, where the stainless build resists cutting fluid and the cushion absorbs the sudden deceleration of the heavy part.
Is the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X250SCM the Right Cylinder?
When sizing this 40 mm bore, step down to the MFC32 if your application only requires 402.2 N of push force at 0.5 MPa, as this is the largest available bore in the series. The variable cushion is essential when moving heavy loads at high speeds up to 800 mm/s, but remember it only decelerates the piston near the stroke end. It does not function as a brake or lock.
If your system loses air or the valve centres, the piston will drift, meaning an external rod lock or pilot-operated check valve is required to hold a suspended load safely. This specific configuration ships with the CM back cover and the -S magnet for sensor integration.
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 MFC40X250SCM FAQ
This 40 mm bore cylinder features a 1/4 inch port and a 16 mm rod. 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. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
No, the variable air cushion only decelerates the piston near the end of the stroke and acts purely as a shock absorber, not a brake. If air pressure is lost, the piston will drift, so you must fit an external rod lock or pilot check valve to hold a load safely.
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