Airtac MF32-40 Stainless Steel Mini Cylinder MF40X45SCA
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF40X45SCA is a genuine double acting JIS-standard round-body mini air cylinder with a Ø40mm bore and 45mm 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
- Stroke45 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 MF40X45SCA
Delivering 628.3 N of push force at 0.5 MPa, this 40 mm bore double-acting actuator is built around a SUS304 stainless-steel barrel with riveted aluminium covers that resist mild corrosion and washdown. Because the JIS-standard round body is physically shorter than a comparable ISO 6432 cylinder for the same 45 mm stroke, it saves valuable mounting length in tight machinery. The piston relies on a heterogeneous two-way seal that retains an oil film for long service life, while fixed TPU bumper pads and a front-cover anti-impact pad soften the stroke-end impact.
Equipped with a built-in magnet (-S) for CMSG, DMSG or EMSG switches, this version features a CA pivot back cover for rear articulation. Plan for roughly 377 N of actual work at 0.5 MPa, which safely lifts about 32 kg vertically with a 2:1 margin. Air connects via a 1/4" port, and the 16 mm rod uses an M14x1.5 male thread.
Airtac MF32-40 Stainless Steel Mini Cylinder MF40X45SCA Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF40X45SCA |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 45 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 MF40X45SCA
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×45 | 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 MF40X45SCA Is Used
Press-Fit Pin Insertion
Drives a 32 kg dowel pin into an aluminium housing using the full 628.3 N thrust at 0.5 MPa, with the CA pivot absorbing minor axis misalignment.
Pallet Diverter Arm
Actuates a routing flap on a packaging line where the compact JIS body saves footprint compared to longer ISO 6432 units of the same stroke.
Heavy Tray Stopper
Deploys a hard stop for loaded pallets, using the fixed TPU bumper pads to absorb the kinetic impact of arriving goods without adjustable cushioning.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF40X45SCA the Right Cylinder?
If 402.2 N from the smaller MF32 bore is insufficient for your fixture, this 40 mm option provides the necessary step up in thrust, representing the largest standard diameter in the MF family. When sizing, remember that a plain cylinder drifts if air pressure drops or the valve is centred; the TPU pads only decelerate the end of stroke and do not act as a brake. To suspend a load safely, fit an external rod lock or a pilot-operated check valve.
The CA rear pivot cover suits articulated rod-end loads, but for a 45 mm stroke ensure your mounting geometry avoids side-load binding. You can pair this -S magnet model with CMSG, DMSG or EMSG sensors for position confirmation, and choose LB, FA, SDB or TC front mounting hardware as required.
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 MF40X45SCA FAQ
At 0.5 MPa it provides 628.3 N push and 527.8 N pull. At 0.7 MPa it provides 879.6 N push and 738.9 N pull. The theoretical maximum force is 128.1 kgf at 1.0 MPa. The air port is 1/4" and the male rod thread is M14x1.5.
No, the piston will drift downwards. The fixed TPU bumper pads only decelerate the stroke end and do not function as a lock. For vertical loads you must install an external rod lock or a pilot-operated check valve. The CA pivot back cover allows rear articulation.
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