Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X150U
The AirTAC Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X150U is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 150mm 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
- Stroke150 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 MFC40X150U
Delivering 628.3 N of push force at 0.5 MPa, this double-acting 40 mm bore mini cylinder handles heavy loads with precision. It features a variable air cushion at both ends, letting you dial in a needle valve to absorb high-speed end-of-stroke shock, protecting your machinery and cutting noise. The riveted SUS304 stainless barrel and aluminium covers resist mild corrosion and washdown environments.
For the same bore and stroke, the JIS-standard round-body design is noticeably shorter than an ISO 6432 cylinder, saving valuable mounting space. This specific U-model includes a flat-end rear cover. Operating at speeds from 30-800 mm/s via a 1/4 inch port, it provides a safe working load of roughly 377 N and lifts about 32 kg vertically with a 2:1 safety margin. Note that this SKU lacks a magnet, so it cannot host CMSG, DMSG, or EMSG sensors without switching to an -S variant.
Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X150U Technical Specifications
| Model | Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X150U |
|---|---|
| Series | MFC JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 150 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 MFC40X150U
| MFC | JIS-standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×150 | 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 MFC40X150U Is Used
Heavy Package Diversion
Pushes substantial cartons at high speed onto adjacent lines; the adjustable air cushion prevents harsh slams that could damage packaging.
Press Ejection
Ejects dense stamped parts from a die using 628.3 N of push force, relying on the needle-set deceleration to soften the end stroke.
Pallet Stopper Gate
Acts as a robust stop for loaded pallets, using the flat-end U cover and stainless barrel to withstand occasional washdowns in logistics hubs.
Is the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X150U the Right Cylinder?
When sizing this 40 mm bore unit, stepping down to the MFC32 drops the 0.5 MPa push force to 402.2 N, while the MFC40 represents the maximum standard bore available in this series. The adjustable air cushion is essential if you are moving heavy payloads at high velocities, as it decelerates the piston smoothly before impact. Keep in mind the cushion only slows the stroke near the end points—it is not a braking mechanism.
Because this configuration uses a U flat-end back cover, mounting orientation must accommodate that specific rear profile. A plain pneumatic cylinder will not hold its load if air pressure drops or the valve is centered; the piston will drift. For suspended or gravity-loaded applications, install an external rod lock or a pilot-operated check valve to secure the position safely.
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 MFC40X150U FAQ
This 40 mm bore cylinder features a 1/4 inch port and a 16 mm rod with an M14x1.5 male thread. It delivers 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 a magnet, so it cannot support CMSG, DMSG, or EMSG switches. You would need the -S variant for position sensing. The cylinder does feature a SUS304 stainless barrel and a variable air cushion at both ends to manage high-speed shock.
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