Airtac MF32-40 Stainless Steel Mini Cylinder MF32X15SU
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF32X15SU is a genuine double acting JIS-standard round-body mini air cylinder with a Ø32mm bore and 15mm 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
- Stroke15 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 MF32X15SU
Delivering 402.2 N of push force at 0.5 MPa, the AirTAC MF32X15SU is a double-acting JIS-standard round-body mini cylinder built for compact automation. Its SUS304 stainless steel barrel and riveted aluminium covers resist mild corrosion and washdown environments. The piston relies on a heterogeneous two-way seal that retains an oil film for long service life, while fixed TPU bumper pads soften stroke-end impacts.
Because this 32 mm bore unit features a U flat-end back cover and a mere 15 mm stroke, it occupies significantly less mounting length than a comparable ISO 6432 cylinder. The integrated -S piston magnet allows direct mounting of CMSG, DMSG, or EMSG switches for position sensing. Plan for roughly 241 N of actual work at 0.5 MPa, which translates to safely lifting about 20.5 kg vertically with a 2:1 margin.
Airtac MF32-40 Stainless Steel Mini Cylinder MF32X15SU Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF32X15SU |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 15 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 MF32X15SU
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 32 | Bore size in mm. |
| ×15 | 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 MF32X15SU Is Used
Short-Stroke Clamping
Ideal for locking small aluminium extrusions in a machining fixture, using its 402.2 N push force to hold parts firmly against a stop during milling.
Package Diverting
Acts as a compact pop-up gate on a packaging line, extending 15 mm to redirect small cardboard cartons without taking up valuable frame width.
Ejector Mechanism
Perfect for pushing finished plastic moulded components out of a tight die cavity, where the U flat-end back cover mounts flush against the machine frame.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF32X15SU the Right Cylinder?
When sizing this 32 mm bore, stepping down to the MF25 yields 245.3 N at 0.5 MPa, whereas moving up to the MF40 provides 628.3 N. The MF32X15SU is ideal when high force is needed in a minimal footprint. It uses a 1/4" port and an M10x1.25 male rod thread.
Remember that the fixed TPU bumpers only decelerate the stroke end; they do not function as a brake. If your application must prevent drift upon air loss or valve centering, add an external rod lock or a pilot-operated check valve. Furthermore, the extremely short 15 mm stroke means side loading is minimal, but always ensure the load moves linearly to avoid rod binding.
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 MF32X15SU FAQ
The 32 mm bore provides a push force of 402.2 N and a pull force of 345.6 N at 0.5 MPa. At 0.7 MPa, push is 563 N and pull is 483.8 N. The theoretical maximum force is 82 kgf at 1.0 MPa. This model uses a 1/4" air port and an M10x1.25 male rod thread.
No, the MF is a JIS-standard round-body cylinder, not an ISO 6432 compliant unit. However, for the same 32 mm bore and 15 mm stroke, the MF body is physically shorter than an ISO 6432 cylinder, which saves mounting length. The -S magnet also allows you to mount CMSG, DMSG, or EMSG sensors directly.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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