Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X15U
The AirTAC Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X15U is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 15mm 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
- Stroke15 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 MFC40X15U
Delivering 628.3 N of push force at 0.5 MPa, this double-acting round-body mini cylinder handles heavy loads within a highly compact envelope. The MFC40X15U features a 40 mm bore, a 15 mm stroke, and a U flat-end rear cover. Its riveted aluminium heads and SUS304 stainless barrel resist mild corrosion and washdown environments. For the same bore and stroke, the JIS-standard body is notably 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 soak up high-speed end-of-stroke shock, protecting the payload and cutting noise. 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 SKU lacks the -S magnet, so it cannot accept CMSG, DMSG, or EMSG sensors. Air connects via a 1/4" port.
Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X15U Technical Specifications
| Model | Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X15U |
|---|---|
| Series | MFC JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 15 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 MFC40X15U
| MFC | JIS-standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×15 | 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 MFC40X15U Is Used
Short-Stroke Clamping
Exerts up to 879.6 N at 0.7 MPa to grip heavy metal workpieces securely during machining operations.
High-Speed Sealing
Uses the adjustable air cushion to quietly halt the 15 mm stroke when pressing carton lids at high cycle rates.
Product Diverting
Pushes heavy goods across a belt; the SUS304 barrel withstands the occasional washdown found in food lines.
Is the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X15U the Right Cylinder?
If 628.3 N at 0.5 MPa is excessive, stepping down to the MFC32 provides 402.2 N; since 40 mm is the largest available MFC bore, moving up is not an option. The adjustable air cushion is essential when cycling this 15 mm stroke rapidly or moving heavy masses, as it decelerates the piston smoothly. Note that the cushion only eases the stop, it does not function as a brake, so the piston will drift if air pressure drops. For suspended loads, fit an external rod lock or pilot check valve. Mounting options include LB foot, FA flange, SDB pivot, and TC trunnion brackets.
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 MFC40X15U 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 of 128.1 kgf at 1.0 MPa.
No, this specific SKU does not include the -S magnet, meaning it cannot support CMSG, DMSG, or EMSG switches. You would need the -S variant for position sensing.
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