Airtac MF32-40 Stainless Steel Mini Cylinder MF32X40U
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF32X40U is a genuine double acting JIS-standard round-body mini air cylinder with a Ø32mm bore and 40mm 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.
- BoreØ32 mm
- Stroke40 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM10×1.25
- 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 MF32X40U
Delivering 402.2 N of push force at 0.5 MPa, this double-acting JIS-standard round-body mini cylinder integrates a SUS304 stainless-steel barrel with riveted aluminium covers to resist mild corrosion and washdown. Because the MF body is shorter than an ISO 6432 cylinder for the same 32 mm bore and 40 mm stroke, it provides a real packaging win in tight fixtures. The 1/4 inch port and M10x1.25 male rod thread handle robust airflow, while fixed TPU bumper pads and a front-cover anti-impact pad soften stroke-end impact.
The piston relies on a heterogeneous two-way seal that retains an oil film for long service life. For practical sizing, plan for roughly 241 N of actual work at 0.5 MPa, which translates to lifting about 20.5 kg vertically with a 2:1 safety margin. Note that this specific SKU lacks a magnet, so it cannot accept CMSG, DMSG, or EMSG position switches without upgrading to the -S variant.
Airtac MF32-40 Stainless Steel Mini Cylinder MF32X40U Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF32X40U |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 40 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M10×1.25 |
| 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | 484 N |
| Max (@1.0 MPa) | 82 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 MF32X40U
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 32 | Bore size in mm. |
| ×40 | 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 MF32X40U Is Used
Clamping Machined Aluminium Parts
Applies the 402.2 N push force to hold aluminium housings firmly against a milling fixture during secondary machining operations.
Short-Stroke Package Diverting
Uses the compact 40 mm stroke and U flat-end rear mount to push small cartons smoothly between adjacent conveyor belts.
Blister Pack Sealing Press
Leverages the fixed TPU bumper pads to gently decelerate the sealing head, protecting thin plastic films from impact damage.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF32X40U the Right Cylinder?
When sizing this 32 mm bore, the smaller MF25 yields 245.3 N at 0.5 MPa, whereas stepping up to the MF40 provides 628.3 N, giving you clear boundaries for your force requirements. The integrated U flat-end back cover suits direct rear mounting, and you can pair the body with LB foot, FA flange, SDB pivot, or TC trunnion brackets. Because this model has no -S suffix, it cannot support magnetic sensors.
If your application demands holding a load vertically during air loss or valve centring, remember that a plain cylinder drifts—the fixed bumpers only decelerate the stroke end and act purely as an impact buffer, never as a locking brake. To secure a suspended load, install an external rod lock or a pilot-operated check valve. Furthermore, on this short 40 mm stroke, keep side-loading minimal to avoid bending the Ø12 mm piston rod.
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 MF32X40U FAQ
This 32 mm bore cylinder features a 1/4 inch port and an M10x1.25 male rod thread. At 0.5 MPa it pushes with 402.2 N and pulls with 345.6 N. At 0.7 MPa the push increases to 563 N and the pull to 483.8 N. The theoretical maximum force is 82 kgf at 1.0 MPa.
No, this specific SKU lacks the internal magnet, so it cannot accept CMSG, DMSG, or EMSG switches. You must choose the -S variant for sensing capabilities. Additionally, the JIS-standard riveted stainless body is shorter than an ISO 6432 cylinder, and the fixed TPU bumpers only decelerate the stroke end rather than acting as an adjustable cushion.
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Covers non-human-caused product damage.
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