Airtac MF32-40 Stainless Steel Mini Cylinder MF40X35SU
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF40X35SU is a genuine double acting JIS-standard round-body mini air cylinder with a Ø40mm bore and 35mm 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
- Stroke35 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 MF40X35SU
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 fixtures. Because the SUS304 stainless steel barrel and riveted aluminium covers yield a shorter overall body than an ISO 6432 cylinder of the same bore and stroke, it provides a distinct packaging advantage. The 1/4" port and M14x1.5 male rod thread ensure robust airflow for the 40 mm bore.
The piston relies on a heterogeneous two-way seal that retains an oil film for long life, while fixed TPU bumper pads and a front-cover anti-impact pad soften stroke-end impacts. Plan for roughly 377 N of actual work at 0.5 MPa, which safely lifts about 32 kg vertically with a 2:1 margin. The built-in magnet (-S) supports CMSG, DMSG, and EMSG switches, and the flat-end U back cover allows direct rear mounting.
Airtac MF32-40 Stainless Steel Mini Cylinder MF40X35SU Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF40X35SU |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 35 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 MF40X35SU
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×35 | 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 MF40X35SU Is Used
Short-Stroke Stamping
Ideal for driving heavy stamping or crimping heads in compact progressive dies where a 35 mm stroke delivers a fast, high-force impact.
Heavy Part Seating
Presses rigid bearings or pins into housings on automated assembly lines, utilizing the 628.3 N thrust to overcome insertion friction.
Clamp Actuation
Secures thick metalwork blocks during machining operations, using the flat-end U cover for stable rear mounting against the machine bed.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF40X35SU the Right Cylinder?
If 402.2 N from the MF32 bore is insufficient for your fixture, this 40 mm model provides the necessary step up, representing the largest standard bore in the MF family. For applications requiring a held load during air loss or valve centering, note that the piston will drift; an external rod lock or pilot-operated check valve is required, as the TPU pads only decelerate the stroke end. The 35 mm stroke minimizes rod-bending side loads, making it highly stable for short, heavy presses. Thanks to the -S magnet, you can easily mount position sensors.
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 MF40X35SU 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 of 128.1 kgf at 1.0 MPa.
The JIS-standard riveted SUS304 stainless barrel is physically shorter than an ISO 6432 cylinder for the same 40x35 dimensions, saving mounting length. It includes a flat-end U back cover for direct mounting, and the -S magnet enables CMSG, DMSG, and EMSG sensor integration.
Authorized Export Seller
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.
Fast Reply
Most inquiries answered within 7-8 hours.
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