Airtac MF32-40 Stainless Steel Mini Cylinder MF32X125SU
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF32X125SU is a genuine double acting JIS-standard round-body mini air cylinder with a Ø32mm 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.
- BoreØ32 mm
- Stroke125 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 MF32X125SU
Delivering 402.2 N of push force at 0.5 MPa, this double-acting JIS-standard round-body mini cylinder is engineered for tight machinery layouts. Its SUS304 stainless-steel barrel and riveted aluminium covers resist mild corrosion and washdown, while the piston's two-way seal retains an oil film for extended mechanical life. The integrated magnet (-S) supports CMSG, DMSG, and EMSG position switches.
For the same 32 mm bore and 125 mm stroke, the MF body is physically shorter than an ISO 6432 cylinder, providing a real packaging advantage in compact fixtures. It breathes through a 1/4" port and uses fixed TPU bumper pads alongside a front-cover anti-impact pad to decelerate the stroke end. 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.
Airtac MF32-40 Stainless Steel Mini Cylinder MF32X125SU Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF32X125SU |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 125 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 MF32X125SU
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 32 | 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 MF32X125SU Is Used
Package Diverting Gate
Actuates a routing flap on a 300 mm wide packaging belt, using the 402.2 N thrust to push cardboard cartons smoothly into secondary lanes without bouncing.
Textile Loom Tensioner
Trims the tensioning roller position on an industrial weaving machine, where the SUS304 barrel withstands humid environments and lint accumulation.
Vertical Parts Elevator
Lifts 20 kg tote bins between conveyor tiers in a compact logistics cell, taking advantage of the short JIS body length to fit within tight vertical transfer columns.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF32X125SU the Right Cylinder?
When sizing this 32 mm bore, stepping down to the MF25 yields 245.3 N of push force at 0.5 MPa, whereas moving up to the MF40 provides 628.3 N. This MF32X125SU variant includes a U flat-end back cover, giving a flush rear mounting face that bolts directly to hard stops or machine plates. If your fixture requires position feedback, the -S magnet is already present for electronic or reed sensors.
Because the 125 mm stroke amplifies leverage forces, carefully manage side loading to avoid rod bending and premature seal wear. Remember that a standard cylinder drifts when air is removed or the valve is centred; the TPU bumpers only soften the end-of-stroke impact and will not act as a brake. To suspend a load safely during an air loss event, fit an external pilot-operated check valve or a dedicated rod lock.
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 MF32X125SU FAQ
At 0.5 MPa it pushes with 402.2 N and pulls with 345.6 N. At 0.7 MPa the push is 563 N and pull is 483.8 N. The theoretical maximum force is 82 kgf at 1.0 MPa. The air port is 1/4" and the male rod thread is M10x1.25.
The U suffix indicates a flat-end back cover for direct rear mounting. Stroke-end energy is managed by fixed TPU bumper pads that decelerate the piston, not an adjustable air cushion. The cylinder body is also shorter than an ISO 6432 unit of the same bore and stroke.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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