Airtac MF32-40 Stainless Steel Mini Cylinder MF40X40CM
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF40X40CM 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 MF40X40CM
Generating 628.3 N of push force at 0.5 MPa, this double-acting JIS-standard round-body mini cylinder handles heavy-duty clamping and lifting tasks. The SUS304 stainless barrel and riveted aluminium covers resist mild corrosion and washdown environments, while the two-way piston seal retains an oil film for extended mechanical life. Because the MF40X40CM features a CM round-end rear cover, it mounts cleanly via a rear pivot pin.
For the same 40 mm bore and 40 mm stroke, the MF body is physically shorter than a typical ISO 6432 cylinder, saving valuable mounting length in tight machine fixtures. The 1/4" port feeds the 16 mm rod to cycle at 30-800 mm/s. Plan for roughly 377 N of actual work at 0.5 MPa to maintain a safe margin, which means it can vertically lift about 32 kg against gravity. Fixed TPU bumper pads and a front-cover anti-impact pad soften the stroke-end impact without offering adjustable cushioning.
Airtac MF32-40 Stainless Steel Mini Cylinder MF40X40CM Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF40X40CM |
|---|---|
| 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 MF40X40CM
| 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 MF40X40CM Is Used
Heavy-Duty Stamping Clamp
Holds thick steel plates firmly against a die with 628.3 N of push force at 0.5 MPa, ensuring no movement during a press cycle.
Pallet Load Ejector
Uses the short 40 mm stroke and CM round-end pivot to kick completed pallets off a packaging line quickly despite tight axial clearance.
Vertical Parts Press
Pushes bearings into housings on an assembly line, safely lifting up to 32 kg against gravity while the stainless barrel resists shop-floor coolant.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF40X40CM the Right Cylinder?
If 402.2 N from the MF32 at 0.5 MPa is insufficient for your payload, this 40 mm bore provides the necessary step up in thrust. Since 40 mm is the largest bore in the MF series, moving beyond 628.3 N requires switching to a different cylinder family entirely. This specific SKU lacks the -S magnet, so it cannot accept CMSG, DMSG, or EMSG position switches; add the -S variant if your control system requires sensing. Mounting options include LB foot, FA flange, SDB pivot, and TC trunnion.
Remember that the fixed TPU bumpers only decelerate the piston near the end of travel; they do not act as a brake. If air pressure drops or the valve is centred, the rod will drift and drop the load. To secure a vertical load safely, install an external rod lock or a pilot-operated check valve. The short 40 mm stroke keeps rod bending stress minimal even under high 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 MF40X40CM FAQ
The 40 mm bore uses a 1/4" port and a 16 mm rod with an M14x1.5 male 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.
No, this specific SKU lacks the internal magnet, so CMSG, DMSG, or EMSG switches will not function. You must select an MF40 model with the -S suffix for position sensing. The JIS-standard round-body design is also shorter than an ISO 6432 cylinder for the same stroke, saving mounting space.
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