Airtac MF32-40 Stainless Steel Mini Cylinder MF40X125SCASDB
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF40X125SCASDB 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 MF40X125SCASDB
Generating 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 barrel and riveted rolling-packed aluminium covers resist mild corrosion and washdown, while the piston's two-way seal retains an oil film for extended operational life. A 1/4" port supplies the 40 mm bore.
Because the MF body is physically shorter than an ISO 6432 cylinder for the same 125 mm stroke, it saves valuable mounting length in tight fixtures. Fixed TPU bumper pads and a front-cover anti-impact pad soften stroke-end impact by decelerating the motion. Plan for about 377 N of real work at 0.5 MPa, which means it lifts roughly 32 kg vertically with a 2:1 safety margin.
Airtac MF32-40 Stainless Steel Mini Cylinder MF40X125SCASDB Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF40X125SCASDB |
|---|---|
| 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 MF40X125SCASDB
| 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 MF40X125SCASDB Is Used
Stamping Press Ejection
Pushes heavy stamped metal parts out of a die using 628.3 N of force at 0.5 MPa, with the SDB pivot block absorbing angular rod stress.
Pallet Diverting Arm
Swings a heavy diverter gate on a packaging line, where the compact JIS body saves mounting length and the CA pivot cover allows smooth rotation.
Vertical Material Lift
Raises a 32 kg workpiece fixture vertically, relying on the SUS304 stainless barrel to endure occasional washdown in logistics hubs.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF40X125SCASDB the Right Cylinder?
For lighter jobs requiring only 402.2 N at 0.5 MPa, step down to the 32 mm bore; since 40 mm is the largest MF size, moving up requires a different cylinder family. This SKU includes the -S magnet for CMSG, DMSG, or EMSG sensors, and ships with the SDB pivot-block plus a CA rear pivot cover. If your mechanism loses air or the valve centres, the piston will drift, as the TPU pads only decelerate the end of the stroke rather than locking the load. To hold a vertical position securely, add an external rod lock or a pilot-operated check valve.
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 MF40X125SCASDB FAQ
The 40 mm bore uses a 1/4" port and a M14x1.5 male rod thread. 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.
The MF is JIS-standard and does not conform to ISO 6432, though its body is deliberately shorter than an ISO 6432 cylinder to save space. It uses fixed TPU bumper pads that decelerate the stroke end rather than an adjustable air cushion. The included -S magnet allows CMSG, DMSG, or EMSG switches to be fitted.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
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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