Airtac MF32-40 Stainless Steel Mini Cylinder MF40X30CMFA
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF40X30CMFA is a genuine double acting JIS-standard round-body mini air cylinder with a Ø40mm bore and 30mm 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
- Stroke30 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 MF40X30CMFA
Delivering 628.3 N of push force at 0.5 MPa, this double-acting JIS-standard round-body mini cylinder handles heavy-duty tasks in tight spaces. The SUS304 stainless-steel barrel and riveted aluminium covers resist mild corrosion, while the fixed TPU bumper pads and front-cover anti-impact pad absorb stroke-end shocks. For the same 40 mm bore and 30 mm stroke, the MF body is physically shorter than an ISO 6432 cylinder, delivering a real packaging advantage.
Featuring a 1/4" port and an M14x1.5 male rod thread, the piston uses a two-way oil-retaining seal for extended lifespan. Plan for roughly 377 N of actual work at 0.5 MPa, which translates to lifting about 32 kg vertically with a 2:1 safety margin. Note that this specific SKU lacks the -S magnet, meaning it cannot accept CMSG, DMSG, or EMSG position switches.
Airtac MF32-40 Stainless Steel Mini Cylinder MF40X30CMFA Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF40X30CMFA |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 30 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 MF40X30CMFA
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×30 | 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 MF40X30CMFA Is Used
Short-Stroke Stamping
Ideal for driving a compact marking or stamping head in a dense assembly fixture, utilising the 628.3 N push force within a minimal 30 mm travel.
Heavy Part Diverter
Pushes heavier components off a conveyor line using the robust 40 mm bore, where the shorter JIS body length prevents interference with passing machinery.
Pallet Stop Gate
Acts as a rugged stop gate for loaded pallets, relying on the FA flange to secure the cylinder against repeated lateral impacts during deceleration.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF40X30CMFA the Right Cylinder?
When sizing this 40 mm bore, verify your actual load requirements against the 628.3 N push force at 0.5 MPa. If your application demands less force, stepping down to the MF32 provides 402.2 N; since 40 mm is the largest available MF bore, exceeding this capacity requires a different cylinder family entirely. The included FA flange and CM round-end back cover suit direct mounting, but for side-load stability on this short 30 mm stroke, ensure rigid alignment to prevent rod bending.
Remember that a plain double-acting cylinder drifts when air is lost or the valve is centred, as the fixed bumpers only decelerate the stroke end rather than locking the piston. To maintain vertical position holding under load, integrate an external rod lock or a pilot-operated check valve into your pneumatic circuit.
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 MF40X30CMFA FAQ
This 40 mm bore cylinder features a 1/4" port and an M14x1.5 male rod thread. The thrust output is 628.3 N push and 527.8 N pull at 0.5 MPa, increasing to 879.6 N push and 738.9 N pull at 0.7 MPa, with a theoretical maximum force of 128.1 kgf at 1.0 MPa.
No, this specific SKU does not include the -S magnet option, so it cannot accept CMSG, DMSG, or EMSG switches. You would need the -S variant for sensing; additionally, the fixed TPU bumper pads only soften the stroke end and do not function as an adjustable air cushion.
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1-Year Warranty
Covers non-human-caused product damage.
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