Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X140SCM
The AirTAC Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X140SCM is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 140mm 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
- Stroke140 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 MFC40X140SCM
Delivering 628.3 N of push force at 0.5 MPa, this 40 mm bore double-acting actuator handles heavy fast cycles. A needle-set variable air cushion at both ends soaks up end-of-stroke shock to protect payloads, separating it from basic bumper designs. The riveted aluminium covers and SUS304 stainless barrel resist mild corrosion and washdown.
Fitted with a CM round-end rear cover and a 1/4" port, the JIS-standard round body is shorter than an ISO 6432 cylinder for the same 140 mm stroke. The -S suffix adds a piston magnet for CMSG, DMSG or EMSG switches. Based on the 0.5 MPa figure, expect a safe working load around 377 N, lifting roughly 32 kg vertically with a 2:1 margin.
Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X140SCM Technical Specifications
| Model | Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X140SCM |
|---|---|
| Series | MFC JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 140 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 MFC40X140SCM
| MFC | JIS-standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×140 | 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 MFC40X140SCM Is Used
Heavy Cart Diversion
Pushes loaded pallets at speed on a packaging line, using the adjustable air cushion to halt the 32 kg payload smoothly without slamming.
Press Ejection
Cycles fast to clear stamped parts from a die, relying on the 628.3 N thrust and needle-set cushions to absorb the rapid direction change.
Vertical Lift Gate
Raises a material handling flap where the CM rear cover and compact JIS length save mounting space compared to an ISO 6432 unit.
Is the Airtac MFC Cushioned Stainless Steel Mini Cylinder MFC40X140SCM the Right Cylinder?
If 402.2 N from the MFC32 is insufficient, this 40 mm bore provides the step up; no larger MFC bore exists. The dual variable air cushions are essential when moving heavy masses at high speed, letting you dial in deceleration. Note the cushion only slows the piston near stroke end—it is not a lock. To prevent drift on air loss, add an external rod lock or pilot check valve. Mount via LB foot, FA flange or TC trunnion, and use the built-in magnet for position sensing.
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 MFC40X140SCM FAQ
It has a 1/4" port and an M14x1.5 male rod thread. The double-acting thrust is 628.3 N push and 527.8 N pull at 0.5 MPa, rising 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; it is not a brake. If air is lost, the piston will drift. For vertical loads, install an external rod lock or pilot-operated check valve. The SUS304 barrel also provides washdown resistance.
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