Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X140CM
The AirTAC Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X140CM is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 140mm 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
- Stroke140 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 MFC40X140CM
Delivering 628.3 N of push force at 0.5 MPa, this double-acting round-body mini cylinder handles heavy-duty actuation with precision. The MFC40X140CM features a 40 mm bore, a 140 mm stroke, and a 1/4 inch air port. Its SUS304 stainless barrel and riveted aluminium covers resist mild corrosion and washdown environments. For the same bore and stroke, the JIS-standard body is noticeably shorter than an ISO 6432 cylinder, saving valuable mounting length.
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 yields a safe working load of roughly 377 N, lifting about 32 kg vertically with a 2:1 safety margin. This specific SKU lacks the -S magnet, meaning it cannot accept CMSG, DMSG, or EMSG position switches. The rear features a CM round-end cover for direct pivot mounting.
Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X140CM Technical Specifications
| Model | Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X140CM |
|---|---|
| Series | MFC JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 140 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 MFC40X140CM
| MFC | JIS-standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×140 | 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 MFC40X140CM Is Used
Heavy Package Diversion
Uses the 628.3 N push force to deflect heavy cartons on a high-speed sorting line, with the variable air cushion preventing end-of-stroke impact damage.
Vertical Pallet Pressing
Holds and presses packaging materials securely, taking advantage of the 32 kg vertical lift capacity while the CM round-end cover handles the pivot stress.
Washdown Component Ejection
Ejects machined parts from a coolant-washed zone, relying on the SUS304 stainless barrel for corrosion resistance and the adjustable cushion to reduce noise.
Is the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X140CM the Right Cylinder?
When sizing this 40 mm bore actuator, evaluate your payload against its 628.3 N push and 527.8 N pull capabilities at 0.5 MPa. If your application requires less force, stepping down to the MFC32 provides 402.2 N of push at 0.5 MPa; since 40 mm is the largest available bore in this series, heavier loads beyond 879.6 N at 0.7 MPa will require an entirely different cylinder family. The adjustable cushion is essential when cycling at high speeds or moving heavy masses, as it decelerates the piston smoothly. Note that this cushion only reduces impact near the stroke end and does not function as a brake; if you need to prevent drift from air loss or a centered valve, install an external rod lock or pilot check valve. Furthermore, because this base model has no internal magnet, you cannot mount magnetic sensors—order an -S variant if position feedback is required.
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 MFC40X140CM FAQ
This 40 mm bore cylinder features a 1/4 inch air port and a 16 mm piston 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. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
No, this specific SKU does not include an internal magnet, so it cannot accept CMSG, DMSG, or EMSG magnetic switches. You would need the -S variant for sensing. Additionally, while the variable air cushion decelerates the piston at stroke ends, it is not a locking device and will not hold a load in place if air pressure is lost.
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