Airtac MF32-40 Stainless Steel Mini Cylinder MF40X100SU
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF40X100SU is a genuine double acting JIS-standard round-body mini air cylinder with a Ø40mm bore and 100mm 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.
- BoreØ40 mm
- Stroke100 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM14×1.5
- 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 MF40X100SU
Delivering 628.3 N of push force at 0.5 MPa, this double-acting 40 mm bore mini cylinder handles heavy-duty positioning tasks. The JIS-standard round-body design is physically shorter than a comparable ISO 6432 unit for the same 100 mm stroke, saving valuable mounting length in tight machinery. Its SUS304 stainless-steel barrel and riveted aluminium covers naturally resist mild corrosion and washdown environments.
Built with fixed TPU bumper pads and a front-cover anti-impact pad, the stroke-end deceleration is smooth and reliable without the complexity of adjustable cushions. Because the piston seal retains an oil film, friction wear stays low over long cycle counts. For practical sizing, plan for about 377 N of real work at 0.5 MPa, which translates to lifting roughly 32 kg vertically with a 2:1 safety margin.
Airtac MF32-40 Stainless Steel Mini Cylinder MF40X100SU Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF40X100SU |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 100 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M14×1.5 |
| 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | 739 N |
| Max (@1.0 MPa) | 128 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 MF40X100SU
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×100 | 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 MF40X100SU Is Used
Stamping Press Feeders
Pushes heavy metal blanks into progressive dies using the full 628.3 N thrust, where the compact JIS body minimises interference with the press tooling.
Pallet Diverters
Actuates heavy lane guides on packaging conveyors, easily handling the 32 kg vertical lift equivalent to reposition loaded pallets mid-transfer.
Automated Storage Cranes
Drives horizontal pusher arms on shuttle systems, relying on the SUS304 barrel to withstand dusty, mildly corrosive warehouse atmospheres.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF40X100SU the Right Cylinder?
When sizing this 40 mm bore unit, compare its 628.3 N push force at 0.5 MPa against the smaller MF32, which provides 402.2 N. Since 40 mm is the largest available bore in the MF series, moving heavier loads requires parallel cylinders or a larger alternative format. This SKU includes the -S magnet for CMSG, DMSG, or EMSG sensors, and features a U flat-end back cover for direct rear mounting.
Remember that the fixed TPU bumpers only soften the stroke end; they do not act as a brake. If air pressure drops or the valve centres, the piston will drift and drop the load. To maintain vertical position safely, install an external rod lock or a pilot-operated check valve. The 1/4" port and M14x1.5 male rod thread ensure high flow and robust mechanical attachment for this 100 mm stroke.
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 MF40X100SU FAQ
At 0.5 MPa it pushes with 628.3 N and pulls with 527.8 N. At 0.7 MPa the push is 879.6 N and pull is 738.9 N. The theoretical maximum force is 128.1 kgf at 1.0 MPa. This 40 mm bore cylinder uses a 1/4" air port and an M14x1.5 male rod thread.
Yes, the -S suffix means a magnet is built into the piston, allowing direct mounting of CMSG, DMSG, or EMSG switches. The U back cover provides a flat rear surface for direct face mounting. The fixed TPU bumpers absorb end-of-stroke impact, but an external pilot check valve is required to hold a load if air fails.
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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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