Airtac MF32-40 Stainless Steel Mini Cylinder MF32X15U
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF32X15U 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 MF32X15U
Delivering 402.2 N of push force at 0.5 MPa, this double-acting JIS-standard round-body mini cylinder is built for tight fixtures where every millimetre counts. Because the SUS304 stainless barrel and riveted aluminium covers form a shorter body than an equivalent ISO 6432 unit, you save valuable mounting length. The 1/4" port feeds the chamber efficiently, while the piston's two-way oil-retaining seal ensures smooth cycling.
The fixed TPU bumper pads and front-cover anti-impact pad work together to decelerate the piston at stroke end, softening the impact without adding adjustable cushioning. Plan for a safe working load of roughly 241 N, which is about 60 percent of the 0.5 MPa rating. Alternatively, it can reliably lift a 20.5 kg part vertically when applying a 2:1 safety margin.
Airtac MF32-40 Stainless Steel Mini Cylinder MF32X15U Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF32X15U |
|---|---|
| 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 MF32X15U
| 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 MF32X15U Is Used
Short-Stroke Clamping
Ideal for locking small aluminium extrusions in a machining fixture, using its 15 mm travel to secure the part rapidly before milling.
Package Diverter Gate
Provides the necessary push to pivot a routing flap on a packaging line, diverting cardboard cartons at high speed without occupying excessive frame depth.
Component Ejection
Serves well in plastic injection moulding cells to eject small parts from the die cavity, leveraging the 402.2 N thrust to overcome mild ejection resistance.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF32X15U 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 MF32X15U variant features a U flat-end back cover and lacks the -S magnet, meaning it cannot accept CMSG, DMSG, or EMSG magnetic switches. If your sequence requires position feedback, you must select the -S version instead.
Remember that a standard double-acting cylinder drifts if air pressure drops or the valve centres; the bumpers only soften the end of stroke and will not act as a brake. To suspend a load safely during an air loss event, install an external rod lock or a pilot-operated check valve. Furthermore, despite the very short 15 mm stroke, be mindful of side loads to prevent premature rod-bending or seal wear.
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 MF32X15U FAQ
This 32 mm bore cylinder features a 1/4" port and an M10x1.25 male rod thread. It generates 402.2 N push and 345.6 N pull at 0.5 MPa, increasing to 563 N push and 483.8 N pull at 0.7 MPa. The theoretical maximum force is 82 kgf at 1.0 MPa.
No, because this specific SKU lacks the -S magnet, it cannot accept CMSG, DMSG, or EMSG switches. You would need the -S variant for sensing. Additionally, its JIS-standard riveted stainless body is shorter than an ISO 6432 cylinder, and the fixed TPU bumpers merely decelerate the stroke end rather than acting as an adjustable cushion.
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