Airtac MF32-40 Stainless Steel Mini Cylinder MF40X125UFA
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF40X125UFA is a genuine double acting JIS-standard round-body mini air cylinder with a Ø40mm bore and 125mm 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
- Stroke125 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 MF40X125UFA
Delivering 628.3 N of push force at 0.5 MPa, this double-acting JIS-standard round-body mini cylinder handles heavy-duty automation within a compact footprint. Because the SUS304 stainless-steel barrel and riveted aluminium covers form a shorter body than an equivalent ISO 6432 unit, you save valuable mounting length on your machinery. The 1/4" port and M14x1.5 male rod thread accommodate high airflow for rapid 30-800 mm/s cycling.
The riveted rolling-packed structure resists mild corrosion and washdown, while the piston's two-way seal retains an oil film for extended lifespan. Fixed TPU bumper pads and a front-cover anti-impact pad soften stroke-end impact, though they decelerate rather than lock the load. Plan for a safe working load of about 377 N, which lets you lift roughly 32 kg vertically with a 2:1 safety margin.
Airtac MF32-40 Stainless Steel Mini Cylinder MF40X125UFA Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF40X125UFA |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 125 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 MF40X125UFA
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×125 | 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 MF40X125UFA Is Used
Carton Diverting Gate
Actuates a heavy routing flap on a packaging line, using its 628.3 N thrust to push loaded corrugated boxes smoothly onto secondary tracks at high speed.
Press Fit Bushings
Drives small metal sleeves into aluminium housings on an assembly fixture, relying on the FA flange to hold the body rigid against the downward 125 mm stroke impact.
Pallet Stopper Arm
Extends a blocking lever to halt incoming pallets at a wrapping station, where the U flat-end back cover and SUS304 barrel withstand dusty industrial environments.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF40X125UFA the Right Cylinder?
When sizing this 40 mm bore, compare its 628.3 N output at 0.5 MPa against the smaller MF32, which provides 402.2 N; since 40 mm is the largest available MF bore, moving up requires switching to an entirely different cylinder family. This specific SKU features a U flat-end back cover and an FA flange for rigid mounting. Because it lacks the -S suffix, it cannot accept CMSG, DMSG, or EMSG magnetic switches—order the -S variant if you require position sensing.
At a 125 mm stroke, maintain precise alignment to avoid rod-bending side loads. Note that a plain double-acting cylinder drifts when air is lost or the valve is centred; the bumpers only decelerate the stroke end and act as neither a brake nor a lock. To suspend a load safely, integrate an external pilot-operated check valve or a dedicated rod lock.
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 MF40X125UFA FAQ
This 40 mm bore cylinder features a 1/4" port and an M14x1.5 male rod thread. It generates 628.3 N push and 527.8 N pull at 0.5 MPa, 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.
This specific SKU lacks a magnet, so it cannot accept CMSG, DMSG, or EMSG switches; you must select an MF40 model with the -S suffix for position sensing. Furthermore, its JIS-standard riveted round-body design is physically shorter than an ISO 6432 cylinder of the same bore and stroke, saving mounting length without using a tie-rod or extruded profile construction.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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