Airtac MF32-40 Stainless Steel Mini Cylinder MF40X150U
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF40X150U is a genuine double acting JIS-standard round-body mini air cylinder with a Ø40mm bore and 150mm 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
- Stroke150 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 MF40X150U
Delivering 628.3 N of push force at 0.5 MPa, this double-acting 40 mm bore mini cylinder handles demanding actuation tasks. It features a JIS-standard round-body architecture with a SUS304 stainless-steel barrel and aluminium covers joined by a riveted rolling-packed structure. For the same 150 mm stroke, the MF body is notably shorter than an ISO 6432 cylinder, saving valuable mounting length in tight machinery. The 1/4" port drives a 16 mm rod with an M14x1.5 male thread.
The piston relies on a heterogeneous two-way seal that retains an oil film for long-term friction reduction, while fixed TPU bumper pads and a front-cover anti-impact pad soften stroke-end impacts. Because this specific SKU lacks the -S magnet, it cannot accept CMSG, DMSG, or EMSG position switches. Plan for roughly 377 N of actual work at 0.5 MPa, which translates to safely lifting about 32 kg vertically with a 2:1 margin.
Airtac MF32-40 Stainless Steel Mini Cylinder MF40X150U Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF40X150U |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 150 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 MF40X150U
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×150 | 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 MF40X150U Is Used
Package Diverting Gate
Actuates a heavy routing flap on a high-speed packaging line, using its 628.3 N thrust to push fully loaded cartons onto secondary tracks without stalling.
Press Fit Subassembly
Presses bronze bushings into aluminium housings on an automated stand, relying on the 150 mm stroke and fixed TPU pads to absorb the bottoming impact.
Pallet Stopper Arm
Deploys a robust stop block at the end of a gravity roller conveyor, securely halting 30 kg pallets using the U flat-end cover for flush rear mounting.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF40X150U the Right Cylinder?
When sizing this 40 mm bore unit, consider the adjacent MF32 which provides 402.2 N of push at 0.5 MPa for lighter duties; since 40 mm is the largest available MF bore, moving beyond 628.3 N requires a different cylinder family entirely. The included U flat-end back cover suits direct rear mounting, and you can pair the body with LB foot, FA flange, SDB pivot, or TC trunnion brackets. If your mechanism relies on the 150 mm stroke to support a vertical load, remember that air loss or a centred valve will cause the piston to drift, as the internal bumpers only decelerate the end of travel without locking the rod. For secure holding, install an external rod lock or a pilot-operated check valve. Additionally, the 150 mm extension length demands careful lateral alignment to prevent rod-bending side loads.
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 MF40X150U FAQ
At 0.5 MPa it provides 628.3 N push and 527.8 N pull. At 0.7 MPa it yields 879.6 N push and 738.9 N pull. The theoretical maximum force is 128.1 kgf at 1.0 MPa. This 40 mm bore unit uses a 1/4" air port and a 16 mm rod with an M14x1.5 male thread.
No, this specific SKU does not include a piston magnet, so it cannot accept CMSG, DMSG, or EMSG switches. You would need the MF40X150U-S variant for sensing. The unit features a SUS304 stainless barrel for washdown resistance and is shorter than an ISO 6432 cylinder, but it uses fixed TPU bumper pads rather than an adjustable air cushion.
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Covers non-human-caused product damage.
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