Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X75SU
The AirTAC Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X75SU is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 75mm 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
- Stroke75 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 MFC40X75SU
Delivering 628.3 N of push force at 0.5 MPa, this 40 mm bore, 75 mm stroke actuator handles heavy fast cycles with ease. A needle-set variable air cushion at both ends soaks up end-of-stroke shock, protecting your payload and cutting noise far better than a fixed bumper. The riveted SUS304 stainless barrel and aluminium covers resist mild corrosion and washdown. For the same bore and stroke, this JIS-standard round-body design is shorter than an ISO 6432 cylinder, saving valuable mounting length.
Equipped with a built-in piston magnet (the -S suffix), it supports CMSG, DMSG and EMSG switches for position sensing. It features a U flat-end back cover and a 1/4" port. Factoring a 60% safety margin on the 0.5 MPa push force yields a safe working load of about 377 N, letting you lift roughly 32 kg vertically with a 2:1 ratio.
Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X75SU Technical Specifications
| Model | Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X75SU |
|---|---|
| Series | MFC JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 75 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 MFC40X75SU
| MFC | JIS-standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×75 | 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 MFC40X75SU Is Used
Heavy Package Diversion
Uses the 628.3 N push force to deflect heavy cartons on a high-speed sorting line, relying on the tuned air cushion to stop the 75 mm stroke smoothly without slamming.
Press Ejection
Pushes finished metal parts out of a press quickly, where the variable cushion absorbs the shock of the sudden 40 mm bore push at cycle end.
Pallet Lift Gate
Raises a light pallet lift gate, safely lifting about 32 kg vertically while the U flat-end back cover mounts flush against the machine frame.
Is the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X75SU the Right Cylinder?
If 628.3 N at 0.5 MPa is excessive, step down to the MFC32 which provides 402.2 N; as 40 mm is the largest available MFC bore, you cannot size up within this family. The variable air cushion is essential when moving heavy loads at high speed, allowing you to tune the deceleration to prevent end-of-stroke banging. Note that the cushion only decelerates the piston near stroke end and acts purely as a shock absorber, never as a lock or brake. If your application must hold a load vertically during air loss, fit an external rod lock or pilot-operated check valve. Mounting options include LB foot, FA flange, SDB pivot and TC trunnion to suit your frame.
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 MFC40X75SU FAQ
This 40 mm bore double-acting cylinder uses a 1/4" port. 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.
Yes, the -S suffix indicates 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. The cylinder will drift on air loss, so use an external rod lock for load holding.
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