Airtac MF32-40 Stainless Steel Mini Cylinder MF32X280SU
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF32X280SU is a genuine double acting JIS-standard round-body mini air cylinder with a Ø32mm bore and 280mm 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.
- BoreØ32 mm
- Stroke280 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM10×1.25
- 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 MF32X280SU
Delivering 402.2 N of push force at 0.5 MPa, the AirTAC MF32X280SU is a double-acting JIS-standard round-body mini cylinder built around a SUS304 stainless barrel with riveted aluminium covers. Because its riveted rolling-packed structure is physically shorter than a comparable ISO 6432 unit for the same 32 mm bore and 280 mm stroke, it trims valuable mounting length in tight machinery. The 1/4" port feeds the chamber efficiently, while fixed TPU bumper pads and a front-cover anti-impact pad work together to soften end-of-stroke impacts.
A heterogeneous two-way seal on the piston retains an oil film for extended mechanical life. The built-in piston magnet (-S) enables direct mounting of CMSG, DMSG or EMSG switches for position sensing. Plan for roughly 241 N of actual work at 0.5 MPa, which translates to safely lifting about 20.5 kg vertically with a 2:1 margin. The flat-end U back cover provides a straightforward flat-mounting surface for the rear of the cylinder body.
Airtac MF32-40 Stainless Steel Mini Cylinder MF32X280SU Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF32X280SU |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 280 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M10×1.25 |
| 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | 484 N |
| Max (@1.0 MPa) | 82 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 MF32X280SU
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 32 | Bore size in mm. |
| ×280 | 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 MF32X280SU Is Used
Spindle Tool Changer
Actuates the swing arm in a CNC machining centre tool changer, using the 280 mm stroke to extract and swap tool holders reliably under the 402.2 N push rating.
Pallet Diverter Gate
Pushes routing gates on a packaging conveyor to divert heavy cardboard pallets, utilising the compact JIS body to fit within narrow transfer frame gaps.
Vertical Parts Elevator
Lifts metal hardware bins between conveyor tiers, safely hoisting roughly 20.5 kg loads while the flat-end U rear cover bolts flush to the elevator chassis.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF32X280SU the Right Cylinder?
This 32 mm bore strikes a middle ground: if your fixture requires less force, the MF25 provides 245.3 N at 0.5 MPa, whereas stepping up to the MF40 yields 628.3 N for heavier payloads. The included -S magnet is essential if your control system requires CMSG, DMSG or EMSG electronic or reed sensors. With a 280 mm stroke, ensure your mounting arrangement—whether LB foot, FA flange, SDB pivot or TC trunnion—prevents excessive side loading to avoid rod bending.
Remember that the fixed TPU bumpers only decelerate the piston near the stroke end; they do not function as a locking mechanism. If air pressure drops or the directional valve is centred, the rod will drift and drop the load. To maintain vertical position securely, integrate an external pilot-operated check valve or a dedicated rod lock.
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 MF32X280SU FAQ
The 32 mm bore features a 1/4" air port and an M10x1.25 male rod thread. It generates 402.2 N push and 345.6 N pull at 0.5 MPa, 563 N push and 483.8 N pull at 0.7 MPa, with a theoretical maximum of 82 kgf at 1.0 MPa.
No, the MF is JIS-standard and does not conform to ISO 6432. However, for the exact same 32 mm bore and 280 mm stroke, the MF riveted stainless body is physically shorter than an ISO 6432 cylinder, which saves mounting length. It relies on fixed TPU bumper pads for end-deceleration rather than an adjustable air cushion.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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