
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF32X140CA is a genuine double acting JIS-standard round-body mini air cylinder with a Ø32mm bore and 140mm 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.
Generating 402.2 N of push force at 0.5 MPa, the AirTAC MF32X140CA is a double-acting JIS-standard round-body mini cylinder built around a SUS304 stainless steel barrel. The 32 mm bore pairs with a 140 mm stroke and a CA rear pivot cover, while the body's riveted rolling-packed aluminium structure keeps the overall length shorter than a comparable ISO 6432 unit to save valuable fixture space. The piston relies on a heterogeneous two-way seal that retains an oil film for long service life.
Featuring fixed TPU bumper pads and a front-cover anti-impact pad, this unit decelerates the stroke end without offering adjustable cushioning. Because it lacks the -S suffix, this specific SKU cannot accept CMSG, DMSG, or EMSG magnetic switches. For practical actuation at 0.5 MPa, plan for roughly 241 N of usable work, which translates to lifting about 20.5 kg vertically with a 2:1 safety margin. The 1/4" port and M10x1.25 male rod thread ensure solid pneumatic and mechanical connections across a 30-800 mm/s speed range.
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF32X140CA |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 140 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.
| 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.
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 32 | Bore size in mm. |
| ×140 | 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.
Leverages the CA rear pivot to swing a 20 kg clamping arm during CNC fixture loading, utilizing the 402.2 N push force at 0.5 MPa to secure heavy aluminium billets.
Extends 140 mm to push medium-weight cartons off a main packaging line, relying on the SUS304 stainless barrel to resist washdown during facility cleaning.
Functions as a pneumatic stop for incoming pallets on a roller conveyor, where the shorter JIS body preserves tight transfer station clearances.
When sizing this 32 mm bore, stepping down to the MF25 drops the 0.5 MPa push force to 245.3 N, while moving up to the MF40 increases it to 628.3 N. The integrated CA pivot back cover suits articulated rod-end loading, and you can pair the body with LB foot, FA flange, SDB pivot, or TC trunnion brackets. Since this SKU has no internal magnet, position sensing is impossible without switching to an -S variant. If your application requires high-cycle speed, the MFC variant offers variable air cushioning that the fixed bumper pads here cannot match.
A plain double-acting cylinder will drift and drop its load if air pressure is lost or the directional valve is centred; the bumpers only soften the end-of-stroke impact and act as no brake. To suspend a load safely, install an external rod lock or a pilot-operated check valve. Furthermore, at this 140 mm extension, minimize side-loading to prevent rod bending and premature seal wear.
Quick checklist
This 32 mm bore double-acting cylinder uses a 1/4" port and generates 402.2 N push / 345.6 N pull at 0.5 MPa, and 563 N push / 483.8 N pull at 0.7 MPa. The theoretical maximum force is 82 kgf at 1.0 MPa.
No, because this model lacks the -S suffix, it has no internal magnet and cannot accept CMSG, DMSG, or EMSG switches. You would need the -S variant for position sensing.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.