Airtac MF32-40 Stainless Steel Mini Cylinder MF40X225CM
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF40X225CM is a genuine double acting JIS-standard round-body mini air cylinder with a Ø40mm bore and 225mm 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
- Stroke225 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 MF40X225CM
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. Its 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 long service life, while fixed TPU bumper pads and a front-cover anti-impact pad soften stroke-end impacts.
For the same 40 mm bore and 225 mm stroke, the MF body is notably shorter than a comparable ISO 6432 cylinder, providing a real packaging advantage in tight machinery. Because this unit lacks the -S suffix, it cannot accept CMSG, DMSG, or EMSG magnetic switches. 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 MF40X225CM Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF40X225CM |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 225 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 MF40X225CM
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×225 | 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 MF40X225CM Is Used
Pallet Diverting Gate
Swings a heavy diverting arm on a packaging line, using the 628.3 N push force at 0.5 MPa to redirect loaded pallets onto secondary rollers.
Press Fit Bushings
Presses metal bushings into aluminum housings on an assembly fixture, where the compact JIS body length saves valuable vertical mounting space.
Stacker Crane Pusher
Extends 225 mm to push cardboard cartons off a stacker crane platform, benefiting from the SUS304 barrel's resistance to humid warehouse conditions.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF40X225CM the Right Cylinder?
When sizing this 40 mm bore unit, consider the smaller MF32 if your application only requires 402.2 N of push force at 0.5 MPa, as the MF40 is the largest available bore in this series. The CM round-end back cover suits pivot-mount installations, and you can pair the body with LB foot, FA flange, SDB pivot-block, or TC trunnion brackets. Air enters via the 1/4" port, and the male rod thread is M14x1.5.
Because the standard MF uses fixed TPU bumpers rather than an adjustable air cushion, look at the MFC variant for high-speed cycling that requires variable deceleration. Note that a plain double-acting cylinder drifts when air is lost or the valve is centred; the bumpers only decelerate the stroke end and do not act as a brake. To suspend a load safely, install an external rod lock or a pilot-operated check valve. Additionally, the 225 mm stroke demands careful alignment to prevent rod-bending side loads.
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 MF40X225CM FAQ
This 40 mm bore double-acting cylinder uses 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, because this specific SKU lacks the -S suffix, it has no internal magnet and cannot accept CMSG, DMSG, or EMSG switches. You would need the -S variant for sensing. It features a CM round-end back cover and is shorter than an ISO 6432 cylinder for the same bore and stroke.
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