Airtac MF32-40 Stainless Steel Mini Cylinder MF40X120SCA
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF40X120SCA is a genuine double acting JIS-standard round-body mini air cylinder with a Ø40mm bore and 120mm 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
- Stroke120 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 MF40X120SCA
Delivering 628.3 N of push force at 0.5 MPa, this double-acting JIS-standard round-body mini cylinder handles heavy-duty positioning tasks. The SUS304 stainless-steel barrel and riveted aluminium covers resist mild corrosion and washdown, while the piston's two-way seal retains an oil film for extended operational life. For practical sizing, plan for a safe working load of about 377 N, which lets you lift roughly 32 kg vertically with a 2:1 safety margin.
Because the MF body is physically shorter than an ISO 6432 cylinder for the same 40 mm bore and 120 mm stroke, it saves valuable mounting length in compact machinery. This specific SKU includes a built-in magnet for position sensing and features a CA pivot back cover. The stroke end is decelerated by fixed TPU bumper pads and a front-cover anti-impact pad, operating on a 1/4" air port with an M14x1.5 male rod thread.
Airtac MF32-40 Stainless Steel Mini Cylinder MF40X120SCA Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF40X120SCA |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 120 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 MF40X120SCA
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×120 | 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 MF40X120SCA Is Used
Press-Fit Subassembly
Drives a 32 kg bearing housing into a machined chuck with a safe 2:1 vertical lift margin at 0.5 MPa.
Pallet Diverting Gate
Articulated CA pivot back cover swings a heavy diverter arm on a packaging line using 628.3 N of push force.
Vertical Carton Lift
Elevates corrugated cartons from a lower feed belt, saving machine footprint due to the JIS short-body design.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF40X120SCA the Right Cylinder?
If your application requires less push force, the smaller MF32 bore generates 402.2 N at 0.5 MPa, but since 40 mm is the largest available MF bore, you cannot upsize within this series. This SKU includes the -S magnet for CMSG, DMSG, or EMSG switches, and the CA pivot back cover suits articulated rod-end loading.
Keep in mind that a standard double-acting cylinder will drift if air pressure drops or the valve is centred, as the fixed TPU bumpers only soften the stroke end rather than locking the piston. To suspend a load safely, integrate an external rod lock or a pilot-operated check valve into your pneumatic circuit.
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 MF40X120SCA FAQ
At 0.5 MPa it pushes 628.3 N and pulls 527.8 N. At 0.7 MPa it pushes 879.6 N and pulls 738.9 N. The theoretical maximum force is 128.1 kgf at 1.0 MPa. This 40 mm bore cylinder uses a 1/4" air port and an M14x1.5 male rod thread.
Yes to the sensor: the -S suffix means it has a built-in magnet for CMSG, DMSG, or EMSG switches. No to the cushion: the base MF uses fixed TPU bumper pads to decelerate the stroke end. For adjustable air cushioning, look at the MFC variant.
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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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Most inquiries answered within 7-8 hours.
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