Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X125SCA
The AirTAC Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X125SCA is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 125mm 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
- Stroke125 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 MFC40X125SCA
Delivering 628.3 N of push force at 0.5 MPa, this 40 mm bore double-acting mini cylinder is built for heavy-duty automation. The MFC40X125SCA features a variable air cushion at both ends, allowing you to dial in a needle valve to smoothly decelerate high-speed strokes, protecting the load and cutting noise. A built-in piston magnet (-S) supports CMSG, DMSG and EMSG switches for position sensing.
The riveted SUS304 stainless barrel and aluminium covers resist mild corrosion and washdown environments. Featuring a CA rear pivot cover and a 125 mm stroke, it supplies a safe working load of roughly 377 N, lifting about 32 kg vertically with a 2:1 margin. For the same bore and stroke, the JIS-standard round body is shorter than an ISO 6432 cylinder, saving valuable mounting length.
Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X125SCA Technical Specifications
| Model | Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X125SCA |
|---|---|
| Series | MFC JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 125 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 MFC40X125SCA
| MFC | JIS-standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×125 | 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 MFC40X125SCA Is Used
Heavy Package Diversion
Uses the 628.3 N push force to deflect heavy cartons at high speed, with the adjustable air cushion preventing end-of-stroke impact damage.
Pallet Flap Folding
Drives large packaging flaps rapidly where the 125 mm stroke and needle-set deceleration prevent crushing the load at stroke end.
Vertical Lift Gate
Raises a 32 kg access gate vertically using the 2:1 safety margin, relying on the SUS304 barrel for humid storage environments.
Is the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X125SCA the Right Cylinder?
When sizing this 40 mm bore actuator, step down to the MFC32 if your application only requires 402.2 N of push force at 0.5 MPa, as no larger MFC bore exists. The variable air cushion is essential when driving heavy loads at high speeds up to 800 mm/s, functioning purely to decelerate the piston near stroke end rather than acting as a brake. Because a standard cylinder drifts when air pressure drops or a valve centres, you must add an external rod lock or pilot-operated check valve to hold a suspended load safely.
This configuration includes a CA back cover for pivot mounting and a built-in magnet (-S) for electronic or reed sensors. The 1/4" port matches the 40 mm bore specification, ensuring adequate airflow for the 16 mm piston rod.
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 MFC40X125SCA FAQ
This 40 mm bore double-acting cylinder uses a 1/4" port. 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.
The variable air cushion at both ends uses a needle valve to decelerate the piston near the stroke end, absorbing high-speed shock. It is not a brake or lock. The cylinder will drift on air loss, so an external rod lock or pilot check valve is required to hold a suspended load.
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