Airtac MF32-40 Stainless Steel Mini Cylinder MF32X300U
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF32X300U is a genuine double acting JIS-standard round-body mini air cylinder with a Ø32mm bore and 300mm 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.
- BoreØ32 mm
- Stroke300 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM10×1.25
- 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 MF32X300U
Delivering 402.2 N of push force at 0.5 MPa, this double-acting JIS-standard round-body mini cylinder handles substantial workloads within a compact footprint. The SUS304 stainless-steel barrel and riveted aluminium covers resist mild corrosion and washdown environments. Because the MF body is shorter than an ISO 6432 cylinder for the same 32 mm bore and 300 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-term lubrication, while fixed TPU bumper pads and a front-cover anti-impact pad soften stroke-end impacts. Plan for a safe working load of roughly 241 N, which is about 60 percent of the 0.5 MPa rating. Alternatively, it can lift a 20.5 kg mass vertically with a 2:1 safety margin. This specific SKU lacks a magnet, so it cannot accept CMSG, DMSG, or EMSG switches; the -S variant is required for position sensing. Air connects via a 1/4 inch port.
Airtac MF32-40 Stainless Steel Mini Cylinder MF32X300U Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF32X300U |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 300 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.
Theoretical Output Force (Ø32mm)
| 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.
Model Code: Airtac MF32-40 Stainless Steel Mini Cylinder MF32X300U
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 32 | Bore size in mm. |
| ×300 | 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 MF32X300U Is Used
Carton Diverting Gate
Actuates a routing flap on a packaging conveyor, using its 300 mm travel to push corrugated cartons cleanly into a secondary lane without stalling.
Vertical Parts Elevator
Lifts tote bins weighing up to 20 kg between conveyor tiers, taking advantage of the compact JIS body length to fit within tight vertical lift columns.
Welding Fixture Clamp
Secures mild steel brackets in a robotic welding cell, where the SUS304 barrel withstands incidental weld spatter and grinding debris.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF32X300U the Right Cylinder?
When sizing this 32 mm bore, compare its 402.2 N push force at 0.5 MPa against the smaller MF25, which provides 245.3 N, or the larger MF40, which delivers 628.3 N. This model features a U flat-end back cover, making it suitable for direct rear mounting. For position feedback, you would need the -S magnet version, as this base unit cannot host a sensor.
Note that a plain MF cylinder drifts if air pressure drops or the valve is centred, as the fixed bumpers only decelerate the stroke end rather than locking the rod. To suspend a load safely, install an external rod lock or a pilot-operated check valve. Additionally, the 300 mm stroke demands careful guidance to prevent rod bending under 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 MF32X300U FAQ
At 0.5 MPa it pushes 402.2 N and pulls 345.6 N. At 0.7 MPa it pushes 563 N and pulls 483.8 N. The theoretical maximum force is 82 kgf at 1.0 MPa. The air port is 1/4 inch, the rod is 12 mm, and the male rod thread is M10x1.25.
This specific SKU lacks a magnet, so it cannot accept CMSG, DMSG, or EMSG switches; you must specify the -S variant for sensing. It is a JIS-standard round-body cylinder that is physically shorter than an ISO 6432 cylinder for the same bore and stroke, saving mounting length, but it does not conform to ISO 6432 standards.
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