Airtac MF32-40 Stainless Steel Mini Cylinder MF40X350SU
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF40X350SU is a genuine double acting JIS-standard round-body mini air cylinder with a Ø40mm bore and 350mm 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
- Stroke350 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 MF40X350SU
Delivering 628.3 N of push force at 0.5 MPa, the AirTAC MF40X350SU is a 40 mm bore double-acting JIS-standard round-body mini cylinder built for demanding tasks. Its SUS304 stainless steel barrel and riveted rolling-packed aluminium covers resist mild corrosion and washdown environments. The 350 mm stroke operates at 30-800 mm/s, utilizing a 1/4" port and an M14x1.5 male rod thread.
The piston relies on a heterogeneous two-way seal that retains an oil film for extended lifespan, while fixed TPU bumper pads and a front-cover anti-impact pad soften stroke-end impacts without offering adjustable cushioning. Because this SKU includes the -S magnet, it supports CMSG, DMSG, and EMSG position 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 MF40X350SU Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF40X350SU |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 350 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 MF40X350SU
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×350 | 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 MF40X350SU Is Used
Pallet Diversion
Pushes heavy timber pallets sideways onto secondary packaging lines using its 628.3 N thrust at 0.5 MPa.
Press Fitment
Drives small steel bearings into aluminium housings on an automated assembly carousel.
Tote Lowering
Lowers loaded logistics totes weighing up to 32 kg down a 350 mm vertical descent with steady control.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF40X350SU the Right Cylinder?
When sizing this 40 mm bore, stepping down to the MF32 yields 402.2 N of push force at 0.5 MPa, whereas the MF40 is the largest available option in this series, topping out at a theoretical 128.1 kgf at 1.0 MPa. If your application requires variable deceleration for high-speed cycles, consider the MFC variant instead of relying on the standard fixed bumpers here.
This configuration features a U flat-end back cover and includes the -S magnet for sensor compatibility. Remember that a standard cylinder drifts if air pressure drops or the valve is centred, as the bumpers only decelerate the stroke end rather than locking the load; install an external pilot check valve or rod lock if you need to hold a vertical position securely. At 350 mm, ensure your mounting arrangement—whether LB foot, FA flange, or TC trunnion—adequately supports the rod against side-load bending.
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 MF40X350SU FAQ
The 40 mm bore features a 1/4" port and an M14x1.5 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.
The JIS-standard round body is physically shorter than an ISO 6432 cylinder for the same 40 mm bore and 350 mm stroke, saving valuable mounting length. It features a U flat-end back cover, fixed TPU bumper pads for stroke-end deceleration, and the -S magnet allows direct mounting of CMSG, DMSG, or EMSG sensors.
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.
Request a Quote for Airtac MF32-40 Stainless Steel Mini Cylinder MF40X350SU
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.