Airtac MF32-40 Stainless Steel Mini Cylinder MF40X80SCA
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF40X80SCA is a genuine double acting JIS-standard round-body mini air cylinder with a Ø40mm bore and 80mm 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
- Stroke80 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 MF40X80SCA
Delivering 628.3 N of push force at 0.5 MPa, this double-acting JIS-standard round-body mini cylinder handles heavy-duty positioning in tight spaces. The SUS304 stainless barrel and riveted aluminium covers resist mild corrosion and washdown, while the piston's two-way seal retains an oil film for extended operational life. Because the MF body is shorter than an ISO 6432 cylinder for the same 40 mm bore and 80 mm stroke, it provides a real packaging advantage in compact machinery.
For practical sizing, 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 integrated -S magnet allows direct mounting of CMSG, DMSG, or EMSG switches for position sensing. Stroke-end impact is softened by fixed TPU bumper pads and a front-cover anti-impact pad, and the unit features a 1/4 inch air port with an M14x1.5 male rod thread. The CA pivot back cover simplifies angular mounting requirements.
Airtac MF32-40 Stainless Steel Mini Cylinder MF40X80SCA Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF40X80SCA |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 80 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 MF40X80SCA
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×80 | 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 MF40X80SCA Is Used
Press Fit Subassembly
Drives a 32 kg bearing housing into a machined fixture, utilising the 628.3 N push force at 0.5 MPa to seat components firmly without external hydraulics.
Pallet Diverter Arm
Actuates a heavy routing gate on a packaging line, where the compact JIS body length saves valuable mounting space between adjacent conveyor belts.
Carton Lid Flap Folder
Folds heavy corrugated cardboard flaps on an automated packing station, relying on the SUS304 stainless barrel to withstand daily washdowns and dusty environments.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF40X80SCA the Right Cylinder?
When sizing this 40 mm bore, compare it directly with the smaller MF32, which yields 402.2 N of push at 0.5 MPa. If the MF32 lacks the necessary thrust, this MF40 provides the required step up in power; since 40 mm is the largest standard MF bore, moving beyond it requires a different cylinder family. The built-in -S magnet enables CMSG, DMSG, and EMSG sensors without modification.
Remember that a plain double-acting cylinder drifts if air pressure drops or the valve is centred, as the TPU bumpers only soften the end of stroke rather than locking the rod. To suspend a load safely mid-stroke, incorporate an external rod lock or a pilot-operated check valve into your pneumatic circuit. The CA rear pivot cover is ideal for applications requiring slight rod alignment compensation.
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 MF40X80SCA FAQ
At 0.5 MPa, the push force is 628.3 N and the pull force is 527.8 N. At 0.7 MPa, push is 879.6 N and pull is 738.9 N. The theoretical maximum force is 128.1 kgf at 1.0 MPa. This 40 mm bore cylinder uses a 1/4 inch air port and an M14x1.5 male rod thread.
The CA back cover provides a pivot mount that accommodates slight rod misalignment during stroke transitions. At the stroke ends, fixed TPU bumper pads and a front-cover anti-impact pad decelerate the piston to reduce shock. These bumpers are not adjustable and do not function as an air cushion.
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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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