Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X90SU
The AirTAC Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X90SU is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 90mm 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
- Stroke90 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 MFC40X90SU
Delivering 628.3 N of push force at 0.5 MPa, the AirTAC MFC40X90SU is a JIS-standard round-body mini cylinder built for demanding actuation. A variable air cushion at both ends lets you dial in the needle valve to absorb end-of-stroke shock at high speeds, protecting the payload and cutting noise. The riveted SUS304 stainless barrel and aluminium covers resist mild corrosion and washdown, while the U-style flat rear cover provides a clean flush mount.
This 40 mm bore, 90 mm stroke double-acting actuator runs at 30-800 mm/s on a 1/4" port. Thanks to the built-in magnet (-S), it supports CMSG, DMSG and EMSG sensors for position detection. For the same bore and stroke, the MFC body is noticeably shorter than an ISO 6432 cylinder, saving valuable machine space without sacrificing power.
Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X90SU Technical Specifications
| Model | Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X90SU |
|---|---|
| Series | MFC JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 90 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 MFC40X90SU
| MFC | JIS-standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×90 | 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 MFC40X90SU Is Used
Heavy Package Diversion
Pushes heavy cartons at high speed onto sorting lanes; the variable air cushion prevents harsh impacts that could damage packaging.
Vertical Pallet Lifts
Raises 30 kg packaging components vertically; the 628.3 N thrust handles the load while the cushion softens the stroke end.
Washdown Part Ejection
Ejects machined parts from food-grade lines; the SUS304 stainless barrel withstands routine washdown while absorbing rapid ejection shock.
Is the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X90SU the Right Cylinder?
With a 628.3 N push force at 0.5 MPa, this 40 mm bore is the largest in the MFC family, offering a safe working load of roughly 377 N and lifting about 32 kg vertically with a 2:1 safety margin. If your application is lighter, step down to the MFC32, which provides 402.2 N at 0.5 MPa; no larger MFC bore exists. The adjustable air cushion is essential when moving heavy loads at high velocity, as it decelerates the piston smoothly. Remember that this cylinder does not hold position on air loss—the piston will drift—so add an external rod lock or pilot check valve for suspended loads. Mounting options include LB foot, FA flange, SDB pivot and 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 MFC40X90SU FAQ
This 40 mm bore cylinder features a 1/4" port and an M14x1.5 male rod 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 force of 128.1 kgf at 1.0 MPa.
No, the piston will drift on air loss. The variable air cushion only decelerates the piston near the stroke end and acts as a shock absorber, never a brake. For holding vertical loads, install an external rod lock or pilot-operated check valve.
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1-Year Warranty
Covers non-human-caused product damage.
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