Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X150SU
The AirTAC Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X150SU 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 MFC40X150SU
Delivering 628.3 N of push force at 0.5 MPa, this double-acting 40 mm bore mini cylinder is built for demanding high-speed tasks. The MFC40X150SU features a variable air cushion at both ends, allowing you to turn a needle valve to soak up end-of-stroke shock, protecting the load and cutting noise versus a fixed bumper. Its SUS304 stainless barrel and riveted 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 length. Equipped with a 1/4" port and a U flat-end rear cover, it also includes a built-in piston magnet (-S) for direct mounting of CMSG, DMSG, or EMSG switches. Based on the 0.5 MPa push rating, it handles a safe working load of roughly 377 N and lifts about 32 kg vertically with a 2:1 safety margin.
Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X150SU Technical Specifications
| Model | Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X150SU |
|---|---|
| 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 MFC40X150SU
| 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 MFC40X150SU Is Used
High-Speed Package Diverting
Uses the 628.3 N push force to deflect heavy cartons on a sorter, relying on the adjustable air cushion to silently absorb the 150 mm stroke impact at high cycling speeds.
Drill Head Indexing
Positions a multi-spindle drilling head with precision, where the needle-set deceleration protects the spindle bearings from shock at the end of travel.
Vertical Pallet Lifting
Lifts approximately 32 kg loads vertically in a compact palletizer cell, taking advantage of the shorter JIS body length to fit tight vertical spaces.
Is the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X150SU 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 this is the largest standard bore in the MFC family. The adjustable air cushion is essential when moving heavy loads at high speeds up to 800 mm/s, as it decelerates the piston smoothly near stroke end without harsh impacts.
Note that the air cushion only decelerates the piston; it does not function as a lock or brake. If air pressure drops or the valve is centred, the piston will drift, so you must add an external rod lock or pilot-operated check valve to hold a suspended load safely. The included -S magnet supports reed and electronic sensors, while the U flat-end back cover suits direct rear mounting.
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 MFC40X150SU FAQ
This 40 mm bore cylinder features a 1/4" port and a 16 mm piston rod with an M14x1.5 male 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. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
No, the variable air cushion only decelerates the piston near the stroke end and acts purely as a shock absorber, never as a brake or lock. If air pressure drops, the piston will drift, so an external rod lock or pilot check valve is required to hold a suspended load. The -S magnet enables CMSG, DMSG, or EMSG sensors for position feedback.
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