Airtac MF32-40 Stainless Steel Mini Cylinder MF40X115U
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF40X115U is a genuine double acting JIS-standard round-body mini air cylinder with a Ø40mm bore and 115mm 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
- Stroke115 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 MF40X115U
Delivering 628.3 N of push force at 0.5 MPa, this double-acting 40 mm bore mini cylinder handles heavy-duty clamping and lifting tasks. The JIS-standard round-body design is physically shorter than a comparable ISO 6432 unit for the same 115 mm stroke, yielding a tighter footprint in crowded machinery. Its SUS304 stainless steel barrel and riveted aluminium covers resist mild corrosion and washdown environments.
Built with fixed TPU bumper pads and a front-cover anti-impact pad, the stroke end decelerates smoothly without adjustable cushioning. Because this specific SKU lacks the -S magnet, it cannot accept CMSG, DMSG, or EMSG position switches. For sizing tasks, plan for roughly 377 N of actual work at 0.5 MPa, which translates to safely lifting about 32 kg vertically against gravity.
Airtac MF32-40 Stainless Steel Mini Cylinder MF40X115U Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF40X115U |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 115 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 MF40X115U
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×115 | 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 MF40X115U Is Used
Press Tool Ejection
Uses the 628.3 N push force to eject stamped metal parts from a die, where the shorter JIS body prevents interference with the press ram.
Palletizing Head
Pushes heavy product cartons onto outbound pallets, relying on the fixed TPU bumper pads to absorb the impact at the end of the 115 mm stroke.
Diversion Gate Actuator
Drives a heavy mechanical sorting flap on a packaging line, taking advantage of the SUS304 stainless barrel to withstand routine washdowns.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF40X115U the Right Cylinder?
When sizing this actuator, the MF32 bore provides 402.2 N of push force at 0.5 MPa if your load is lighter, while the 40 mm bore here maxes out the MF family range at 628.3 N. If air pressure drops or the valve is centred, the piston will drift; these bumper pads only soften the end of stroke rather than locking the load, so add an external rod lock or pilot check valve for vertical holding. The U flat-end back cover on this unit suits direct rear mounting, and you can pair it with LB foot, FA flange, or TC trunnion brackets. At 115 mm of travel, keep the load guided to prevent rod bending and premature seal wear.
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 MF40X115U FAQ
This 40 mm bore cylinder features a 1/4" air 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.
This specific SKU lacks the internal magnet, so CMSG, DMSG, or EMSG switches cannot be fitted; you need the -S variant for sensing. It is a JIS-standard round-body cylinder that is physically shorter than an ISO 6432 cylinder for the same bore and stroke, saving mounting length without claiming ISO compliance.
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 MF40X115U
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.