Airtac MF32-40 Stainless Steel Mini Cylinder MF40X250SCA
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF40X250SCA is a genuine double acting JIS-standard round-body mini air cylinder with a Ø40mm bore and 250mm 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
- Stroke250 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 MF40X250SCA
Delivering 628.3 N of push force at 0.5 MPa, this 40 mm bore double-acting mini cylinder handles heavy-duty positioning tasks. The JIS-standard round-body construction is physically shorter than a comparable ISO 6432 unit for the same 250 mm stroke, delivering a tangible packaging advantage in tight machine fixtures. A 1/4" port supplies air to drive the 16 mm rod at speeds between 30 and 800 mm/s.
The SUS304 stainless steel barrel and riveted aluminium covers resist mild corrosion and washdown environments. Fixed TPU bumper pads and a front-cover anti-impact pad soften stroke-end impact, while the piston's two-way seal retains an oil film for long service life. For practical sizing, plan for roughly 377 N of real work at 0.5 MPa, which translates to safely lifting about 32 kg vertically with a 2:1 margin.
Airtac MF32-40 Stainless Steel Mini Cylinder MF40X250SCA Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF40X250SCA |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 250 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 MF40X250SCA
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×250 | 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 MF40X250SCA Is Used
Stamping Press Feed
Pushes heavy metal blanks into a stamping die using the full 628.3 N output at 0.5 MPa, with the CA pivot absorbing slight misalignment during the 250 mm extension.
Pallet Component Lift
Raises 30 kg machinery sub-assemblies vertically between conveyor tiers, staying safely within the computed 32 kg vertical lift capacity at 0.5 MPa.
Case Flap Folding
Swings large corrugated carton flaps closed on a high-speed packing line, utilising the SUS304 stainless barrel to withstand occasional washdown cleaning.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF40X250SCA the Right Cylinder?
When sizing this 40 mm bore, step down to the MF32 if your task requires only 402.2 N of push at 0.5 MPa, as the 40 mm bore is the largest available in the MF series. The included -S magnet enables CMSG, DMSG, and EMSG switches for position sensing, and the CA back cover provides a rear pivot mount for angular alignment. If your mechanism demands a longer extension, verify side-load forces to prevent rod bending over the 250 mm stroke.
Because the fixed bumpers only decelerate the piston near the stroke end, the cylinder will drift and cannot hold a load if air pressure drops or the valve is centred. To maintain vertical position during an air loss event, integrate an external rod lock or a pilot-operated check valve into your pneumatic circuit.
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 MF40X250SCA FAQ
This 40 mm bore double-acting cylinder has a 1/4" air 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.
This model includes the -S magnet for CMSG, DMSG, and EMSG switches, but it uses fixed TPU bumper pads rather than an adjustable air cushion (for adjustable cushioning, look at the MFC variant). The JIS-standard riveted round body is also notably shorter than an ISO 6432 cylinder of the same bore and stroke.
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Covers non-human-caused product damage.
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