Airtac MF32-40 Stainless Steel Mini Cylinder MF40X125SCA
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF40X125SCA is a genuine double acting JIS-standard round-body mini air cylinder with a Ø40mm bore and 125mm 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
- Stroke125 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM14×1.5
- CushionFixed TPU bumper pads
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MF32-40 Stainless Steel Mini Cylinder MF40X125SCA
Delivering 628.3 N of push force at 0.5 MPa, this 40 mm bore double-acting mini cylinder is built around a SUS304 stainless steel barrel with riveted aluminium covers. The MF40X125SCA includes a built-in piston magnet for position sensing and a CA pivot back cover. Because it follows JIS standards, the overall body is noticeably shorter than an ISO 6432 cylinder of the same bore and stroke, yielding a real packaging advantage in tight machinery.
The robust construction resists mild corrosion and washdown, while the piston's two-way seal retains an oil film for extended operational life. Fixed TPU bumper pads and a front-cover anti-impact pad soften stroke-end impacts without offering adjustable cushioning. In practical terms, you should plan for a safe working load of roughly 377 N, which means this actuator can reliably lift about 32 kg vertically with a 2:1 safety margin.
Airtac MF32-40 Stainless Steel Mini Cylinder MF40X125SCA Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF40X125SCA |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 125 mm |
| Acting type | Double acting |
| 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 | Fixed TPU bumper pads |
| 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 MF32-40 Stainless Steel Mini Cylinder MF40X125SCA
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×125 | 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 MF32-40 Stainless Steel Mini Cylinder MF40X125SCA Is Used
Injection Mold Ejection
Provides the robust 628.3 N push force needed to eject dense plastic parts from injection molds, with the CA pivot accommodating slight misalignment during the stroke.
Heavy Package Diversion
Deploys a 125 mm stroke to push heavier cartons off a main conveyor line, using the shorter JIS body to fit within tight transfer station framework.
Pallet Stopper Gate
Acts as a heavy-duty stopper gate on roller conveyors, where the SUS304 stainless barrel withstands dusty industrial environments and the pivot mount absorbs shock.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF40X125SCA the Right Cylinder?
When sizing this actuator, stepping down to the MF32 bore drops the 0.5 MPa push force to 402.2 N, while the 40 mm bore represents the largest available option in the MF family with a maximum theoretical output of 128.1 kgf at 1.0 MPa. If your application requires variable air cushioning for high-speed cycles, consider the MFC variant instead of relying on the standard fixed TPU bumpers here.
Remember that a standard pneumatic cylinder will drift and cannot hold a load vertically if air pressure drops or the valve is centred; the bumpers only decelerate the stroke end and act as no brake. For secure load holding, you must integrate an external rod lock or a pilot-operated check valve. The 1/4" port and M14x1.5 male rod thread are fixed for this bore size, and the included -S magnet enables CMSG, DMSG, or EMSG switches for precise end-of-stroke detection.
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 MF32-40 Stainless Steel Mini Cylinder MF40X125SCA FAQ
This 40 mm bore cylinder features a 1/4" air port and an M14x1.5 male rod thread. At 0.5 MPa it provides 628.3 N of push force and 527.8 N of pull force. At 0.7 MPa, the push increases to 879.6 N and the pull to 738.9 N. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
No, the MF series is a JIS-standard round-body cylinder, not an ISO 6432 unit, though its shorter body length saves mounting space compared to ISO equivalents. It uses fixed TPU bumper pads for end-of-stroke deceleration rather than an adjustable air cushion. The included -S magnet allows you to mount CMSG, DMSG, or EMSG sensors along the SUS304 barrel.
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