Airtac MF32-40 Stainless Steel Mini Cylinder MF32X25SU
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF32X25SU is a genuine double acting JIS-standard round-body mini air cylinder with a Ø32mm bore and 25mm 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
- Stroke25 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 MF32X25SU
Generating 402.2 N of push force at 0.5 MPa, this double-acting JIS-standard round-body mini cylinder is built for tight machinery layouts. Because its riveted SUS304 stainless barrel and aluminium covers are shorter than a comparable ISO 6432 unit for the same 25 mm stroke, it saves valuable mounting length. The 1/4" port feeds a piston with a two-way oil-retaining seal for long life.
The fixed TPU bumper pads and front-cover anti-impact pad soften stroke-end impacts without offering adjustable cushioning. For practical sizing, plan for a safe working load of roughly 241 N, which means it can vertically lift about 20.5 kg with a 2:1 safety margin. The built-in magnet (-S) supports CMSG, DMSG, and EMSG position switches.
Airtac MF32-40 Stainless Steel Mini Cylinder MF32X25SU Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF32X25SU |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 25 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 MF32X25SU
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 32 | Bore size in mm. |
| ×25 | 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 MF32X25SU Is Used
Short-Stroke Clamping
Ideal for locking small aluminium castings in CNC machining centres, utilising the 25 mm stroke and 402.2 N force to secure parts firmly against a stop.
Electronic Component Insertion
Presses connectors into printed circuit boards with precise 25 mm travel, relying on the compact JIS body to fit densely packed assembly machinery.
Flap Folding Mechanism
Drives a short folding arm on a carton erector, where the SUS304 stainless barrel withstands mild washdown during packaging line cleaning.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF32X25SU the Right Cylinder?
When sizing this 32 mm bore, stepping down to an MF25 yields 245.3 N at 0.5 MPa, while stepping up to an MF40 provides 628.3 N. This model includes the U flat-end back cover, giving a flush rear mounting face for direct attachment to fixtures. If your process requires position feedback, the -S magnet is already equipped for reed or electronic sensors.
Note that a standard double-acting cylinder will drift and cannot hold a load if air pressure drops or the valve is centred; the bumpers only decelerate the stroke end rather than acting as a brake. To suspend a load safely, incorporate 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 MF32X25SU FAQ
At 0.5 MPa it provides 402.2 N push and 345.6 N pull. At 0.7 MPa it provides 563 N push and 483.8 N pull. The theoretical maximum force is 82 kgf at 1.0 MPa. The air port size is 1/4".
No, it is a JIS-standard round-body cylinder. However, for the same 32 mm bore and 25 mm stroke, the MF body is physically shorter than an ISO 6432 cylinder, which saves mounting space. It features a U flat-end back cover and fixed TPU bumper pads rather than an adjustable air cushion.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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