Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X70SCA
The AirTAC Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X70SCA is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 70mm 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
- Stroke70 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 MFC40X70SCA
Delivering 628.3 N of push force at 0.5 MPa, this 40 mm bore double-acting cylinder handles heavy-duty actuation within a compact JIS-standard round-body format. The SUS304 stainless steel barrel and riveted aluminium covers resist mild corrosion and washdown environments. For the same bore and stroke, the MFC body is notably shorter than an ISO 6432 cylinder, saving valuable mounting length without sacrificing power.
A defining feature is the variable air cushion at both ends; a needle valve lets you tune the end-of-stroke deceleration to absorb high-speed shock, protecting the load and reducing noise. This 70 mm stroke variant includes a built-in piston magnet (-S) for CMSG, DMSG or EMSG position switches, and features a CA rear pivot cover. Based on the 0.5 MPa push rating, it handles a safe working load of about 377 N, lifting roughly 32 kg vertically with a 2:1 margin.
Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X70SCA Technical Specifications
| Model | Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X70SCA |
|---|---|
| Series | MFC JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 70 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 MFC40X70SCA
| MFC | JIS-standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×70 | 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 MFC40X70SCA Is Used
Heavy Package Diverting
Shifts heavy cartons on high-speed sorting lines, using the needle-adjustable air cushion to stop the 628.3 N push stroke smoothly without slamming.
Pallet Flap Folding
Folds large cardboard flaps on automated packing machines where the compact JIS body length saves space and the SUS304 barrel withstands washdown.
Press Ejection
Ejects dense formed parts from a press, relying on the CA rear pivot to absorb off-axis loads while the cushion minimises shock at 800 mm/s.
Is the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X70SCA 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 40 mm is the largest available bore in the MFC series. The adjustable air cushion is essential if you are moving substantial masses at high speeds up to 800 mm/s, preventing harsh end-of-stroke impacts that a fixed bumper cannot absorb.
Remember that the air cushion only decelerates the piston near the stroke end and does not function as a brake; the cylinder will drift if air pressure is lost or the valve is centred. To suspend a load safely, install an external rod lock or a pilot-operated check valve. The 1/4 inch port matches the 40 mm bore specification, and the included magnet (-S) supports reed or electronic sensors.
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 MFC40X70SCA FAQ
This 40 mm bore cylinder features a 1/4 inch air port and an M14x1.5 male rod 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 force of 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, never as a lock or brake. If air loss occurs, the piston will drift; for vertical loads, you must use an external rod lock or pilot check valve. The -S suffix means it has a magnet for CMSG, DMSG or EMSG sensors.
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