Airtac MF32-40 Stainless Steel Mini Cylinder MF32X400U
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF32X400U is a genuine double acting JIS-standard round-body mini air cylinder with a Ø32mm bore and 400mm 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
- Stroke400 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 MF32X400U
Generating 402.2 N of push force at 0.5 MPa, this double-acting JIS-standard round-body mini cylinder handles substantial work across its 400 mm travel. The SUS304 stainless barrel and riveted aluminium covers resist mild corrosion and washdown, while the piston's two-way seal retains an oil film for extended operational life. Because the MF body is shorter than a comparable ISO 6432 unit for the same bore and stroke, it saves valuable mounting length in tight machinery.
For practical sizing, plan for about 241 N of real work at 0.5 MPa, which means it can safely lift a 20.5 kg part vertically with a 2:1 safety margin. The 1/4" air port feeds the 12 mm rod, and fixed TPU bumper pads combined with a front-cover anti-impact pad soften the impact at stroke extremes. Note that this specific SKU lacks a magnet, so it cannot support CMSG, DMSG, or EMSG position switches without upgrading to an -S variant.
Airtac MF32-40 Stainless Steel Mini Cylinder MF32X400U Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF32X400U |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 400 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 MF32X400U
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 32 | Bore size in mm. |
| ×400 | 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 MF32X400U Is Used
Carton Flap Folding
Provides the 402.2 N push at 0.5 MPa needed to fold heavy cardboard flaps on a packaging conveyor before taping.
Pallet Divider Pushing
Uses the 400 mm stroke to index wooden pallet dividers along a roller track, taking advantage of the short JIS body to fit between frames.
Vertical Part Ejection
Safely ejects 20 kg machined aluminium parts from a press bed, relying on the U flat-end rear cover for stable bottom mounting.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF32X400U the Right Cylinder?
When sizing this 32 mm bore, the smaller MF25 provides 245.3 N of push at 0.5 MPa, while the larger MF40 offers 628.3 N, giving you clear steps if your load shifts. This model features a U flat-end back cover, which pairs well with FA flanges or LB foot mounts for rigid anchoring. Because the 400 mm stroke is quite long, ensure your front mounting is rigid to prevent rod bending and premature seal wear from side loads.
Remember that a standard double-acting cylinder drifts when air is lost or the valve is centred, as the fixed bumpers only decelerate the end of travel and act as neither a brake nor a lock. If your fixture must hold a vertical load securely during an outage, install an external rod lock or a pilot-operated check valve in the air line.
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 MF32X400U FAQ
This 32 mm bore cylinder features a 1/4" air port and a 12 mm rod with an M10x1.25 male thread. It generates 402.2 N push and 345.6 N pull at 0.5 MPa, 563 N push and 483.8 N pull at 0.7 MPa, with a theoretical maximum of 82 kgf at 1.0 MPa.
No, this specific SKU does not include a magnet, so it cannot accept CMSG, DMSG, or EMSG switches. You would need the MF32X400U-S variant for reed switch sensing. The unit uses fixed TPU bumper pads for end-of-stroke deceleration and a U flat-end back cover for mounting.
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Covers non-human-caused product damage.
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