Airtac MF32-40 Stainless Steel Mini Cylinder MF40X40SCM
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF40X40SCM is a genuine double acting JIS-standard round-body mini air cylinder with a Ø40mm bore and 40mm 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
- Stroke40 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 MF40X40SCM
Delivering 628.3 N of push force at 0.5 MPa, this double-acting JIS-standard round-body mini cylinder handles heavy-duty tasks within tight machinery envelopes. For the same 40 mm bore and 40 mm stroke, the MF body is notably shorter than an ISO 6432 cylinder, providing a tangible packaging advantage. The SUS304 stainless-steel barrel and riveted aluminium covers resist mild corrosion and washdown environments.
The piston relies on a heterogeneous two-way seal that retains an oil film for prolonged lifespan, while fixed TPU bumper pads and a front-cover anti-impact pad absorb stroke-end shocks. Equipped with a 1/4" port and an M14x1.5 male rod thread, it operates at 30-800 mm/s. Plan for roughly 377 N of actual work at 0.5 MPa, which means it can safely lift about 32 kg vertically with a 2:1 safety margin.
Airtac MF32-40 Stainless Steel Mini Cylinder MF40X40SCM Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF40X40SCM |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 40 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 MF40X40SCM
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×40 | 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 MF40X40SCM Is Used
Stamping Pin Ejection
Provides the robust 628.3 N push at 0.5 MPa needed to eject thick metal pins from stamping dies, utilizing the short 40 mm stroke for rapid cycling.
Heavy Package Diverter
Actuates a heavy-duty diverter arm on a packaging line, where the SUS304 stainless barrel withstands occasional washdowns and debris exposure.
Pallet Stopper Gate
Functions as a solid stopper gate for loaded pallets, safely arresting roughly 32 kg of vertical load while the TPU bumpers absorb the repeated impact.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF40X40SCM the Right Cylinder?
When sizing this 40 mm bore, compare it directly against the smaller MF32, which yields 402.2 N of push force at 0.5 MPa. Since 40 mm is the largest available bore in the MF series, moving up requires switching to an entirely different cylinder family. The included -S magnet enables CMSG, DMSG, and EMSG switches for position detection, and the CM round-end back cover suits pivot-mount installations.
Remember that a standard 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 vertical 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 MF40X40SCM 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.
No, the MF is a JIS-standard cylinder that does not conform to ISO 6432, though its riveted round-body build is intentionally shorter than an ISO 6432 unit for the same stroke. It uses fixed TPU bumper pads for end-of-stroke deceleration rather than an adjustable air cushion, and the -S magnet allows CMSG, DMSG, or EMSG sensors to be fitted.
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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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