Airtac MF32-40 Stainless Steel Mini Cylinder MF40X300SCM
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF40X300SCM is a genuine double acting JIS-standard round-body mini air cylinder with a Ø40mm 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.
- BoreØ40 mm
- Stroke300 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 MF40X300SCM
Delivering 628.3 N of push force at 0.5 MPa, this double-acting JIS-standard round-body mini cylinder handles heavy-duty actuation within a compact footprint. Because the MF body is physically shorter than an ISO 6432 cylinder for the same 40 mm bore and 300 mm stroke, it drops into tighter machine fixtures without sacrificing power. The SUS304 stainless barrel and riveted aluminium covers resist mild corrosion and washdown, while the piston's two-way oil-retaining seal maintains a lubricating film for extended cycle life.
For practical sizing, plan your mechanism around a safe working load of roughly 377 N, which leaves a solid margin below the rated 0.5 MPa output. This equates to lifting about 32 kg vertically with a 2:1 safety factor, letting you match the cylinder to real part weights. The -S suffix means a built-in piston magnet is present, allowing you to mount CMSG, DMSG, or EMSG electronic or reed switches directly for end-of-stroke confirmation.
Airtac MF32-40 Stainless Steel Mini Cylinder MF40X300SCM Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF40X300SCM |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 300 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 MF40X300SCM
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 40 | 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 MF40X300SCM Is Used
Stamping Press Ejection
Uses the 628.3 N push force at 0.5 MPa to knock stamped metal parts out of a die reliably on every cycle.
Palletizer Push-Off
Leverages the 300 mm stroke and CM round-end rear pivot to sweep heavy cartons onto a waiting pallet.
Bottle Diverting Gate
Actuates a heavy stainless-steel guide rail to sort filled beverage bottles on a high-speed washdown line.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF40X300SCM the Right Cylinder?
When sizing this 40 mm bore, look at the adjacent options: step down to the MF32 if your application only requires 402.2 N of push at 0.5 MPa, or step up to this MF40 if you need the full 628.3 N. Since 40 mm is the largest standard MF bore, moving beyond this force class requires a different cylinder family. The CM round-end back cover provides a specific rear pivot geometry for your mounting layout, complementing available LB foot, FA flange, SDB pivot, and TC trunnion brackets.
Keep in mind that a standard double-acting cylinder drifts if air pressure drops or the valve is centred; the fixed TPU bumper pads only soften the stroke-end impact rather than locking the rod. To suspend a load safely mid-stroke, integrate an external rod lock or a pilot-operated check valve into your pneumatic circuit. Additionally, with a 300 mm stroke, ensure your mounting configuration supports the rod adequately to prevent side-loading and premature seal wear.
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 MF40X300SCM 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.
Built to JIS standards, the MF body is noticeably shorter than an ISO 6432 cylinder of the same bore and stroke, saving valuable mounting length. It relies on fixed TPU bumper pads to decelerate the stroke end rather than an adjustable air cushion, and its SUS304 stainless barrel provides excellent mild corrosion resistance.
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1-Year Warranty
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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