Airtac MF32-40 Stainless Steel Mini Cylinder MF40X125SCM
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF40X125SCM 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 MF40X125SCM
Delivering 628.3 N of push force at 0.5 MPa, this 40 mm bore double-acting actuator handles heavy-duty positioning tasks. The JIS-standard round-body construction is notably shorter than an equivalent ISO 6432 cylinder, saving valuable mounting length in tight machine fixtures. It features a SUS304 stainless-steel barrel with riveted aluminium covers that resist mild corrosion and washdown environments.
The piston relies on a two-way oil-retaining seal to maintain lubrication for long service life, while fixed TPU bumper pads and a front-cover anti-impact pad soften stroke-end impacts. Because this SKU includes the -S magnet, it directly supports CMSG, DMSG, and EMSG position switches. Plan for roughly 377 N of actual work at 0.5 MPa, which translates to lifting about 32 kg vertically with a 2:1 safety margin.
Airtac MF32-40 Stainless Steel Mini Cylinder MF40X125SCM Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF40X125SCM |
|---|---|
| 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 MF40X125SCM
| 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 MF40X125SCM Is Used
Pallet Diverting Gate
Actuates a heavy routing flap on a packaging conveyor, using the 628.3 N push force to reliably redirect loaded pallets without stalling.
Press Fit Bushings
Drives small metal bushings into aluminium housings on an assembly line, where the 125 mm stroke provides ample insertion depth.
Carton Flap Folder
Folds heavy cardboard flaps on large shipping cartons, benefiting from the compact JIS body length to fit within tight conveyor side-frames.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF40X125SCM the Right Cylinder?
When sizing this 40 mm bore unit, the smaller MF32 provides 402.2 N of push force at 0.5 MPa, making this MF40 the top tier of the series with no larger bore available. The CM round-end back cover suits rear pivot mounting, and the 1/4" port matches the bore's airflow requirements. For 125 mm of travel, ensure your front-end tooling is guided to prevent rod side-loading and premature seal wear.
Remember that a standard double-acting cylinder drifts when air is removed or a valve is centred; the TPU bumpers only decelerate the stroke end and do not function as a braking lock. If your application must hold a vertical load during an air-loss event, install 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 MF40X125SCM FAQ
This 40 mm bore double-acting cylinder uses a 1/4" air port and an M14x1.5 male rod thread. It generates 628.3 N push and 527.8 N pull at 0.5 MPa, or 879.6 N push and 738.9 N pull at 0.7 MPa. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
Yes to the sensor: the -S suffix means a piston magnet is installed, allowing you to mount CMSG, DMSG, or EMSG switches for position detection. Regarding cushioning, the base MF uses fixed TPU bumper pads to decelerate the stroke end; it does not have an adjustable air cushion. For adjustable 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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