Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X80SU
The AirTAC Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X80SU is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 80mm 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
- Stroke80 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 MFC40X80SU
Delivering 628.3 N of push force at 0.5 MPa, the AirTAC MFC40X80SU is a JIS-standard round-body mini cylinder built for demanding double-acting tasks. A variable air cushion at both ends lets you dial in the needle valve to soak up high-speed end-of-stroke shock, protecting your payload while cutting noise. The riveted aluminium covers and SUS304 stainless barrel resist mild corrosion and washdown, and for the same 40 mm bore and 80 mm stroke, this body is noticeably shorter than an ISO 6432 cylinder.
Equipped with a U flat-end rear cover and an integrated piston magnet (-S), this 1/4" ported unit is ready for CMSG, DMSG, or EMSG position switches. Based on the 0.5 MPa thrust, it handles a safe working load of roughly 377 N, lifting about 32 kg vertically with a 2:1 safety margin. The 16 mm rod uses an M14x1.5 male thread, and the cushion strictly decelerates the piston near stroke end without acting as a lock.
Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X80SU Technical Specifications
| Model | Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X80SU |
|---|---|
| Series | MFC JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 80 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 MFC40X80SU
| MFC | JIS-standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×80 | 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 MFC40X80SU Is Used
Package Diverting
Handles 32 kg cartons at high cycle rates on a sorting line, relying on the tuned air cushion to prevent harsh slams during rapid direction changes.
Pallet Loading
Pushes heavy product cases onto pallets, using the 628.3 N thrust to overcome friction while the U flat-end cover mounts flush against the machine frame.
Press Ejection
Ejects formed metal parts from a press at speed, where the SUS304 barrel withstands mild coolant spray and the cushion needle absorbs the sudden stop.
Is the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X80SU 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, moving up requires switching to a different series entirely. Choose this 40 mm model when driving heavier masses at high speeds where the adjustable needle cushion is essential to prevent impact damage. Remember that the cushion only decelerates the piston and does not hold the load on air loss—if you need vertical position holding, add an external rod lock or pilot-operated check valve. The included -S magnet supports CMSG, DMSG, and EMSG sensors, and you can mount it via LB foot, FA flange, SDB pivot, or TC trunnion.
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 MFC40X80SU FAQ
This double-acting 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, 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.
Yes, the -S suffix means it has a built-in magnet for CMSG, DMSG, or EMSG switches. The variable air cushion at both ends only decelerates the piston near stroke end to reduce shock; it is not a brake or lock, so the piston will drift on air loss unless you fit an external rod lock.
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