Airtac MF32-40 Stainless Steel Mini Cylinder MF32X70U
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF32X70U is a genuine double acting JIS-standard round-body mini air cylinder with a Ø32mm bore and 70mm 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
- Stroke70 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 MF32X70U
Delivering 402.2 N of push force at 0.5 MPa, this double-acting JIS-standard round-body mini cylinder is engineered for tight machinery layouts. Its SUS304 stainless steel barrel and riveted aluminium covers resist mild corrosion and washdown environments. Because the MF body is physically shorter than an ISO 6432 cylinder for the same 32 mm bore and 70 mm stroke, it saves valuable mounting length without sacrificing power.
The internal piston relies on a heterogeneous two-way seal that retains an oil film for long mechanical life, while fixed TPU bumper pads and a front-cover anti-impact pad soften stroke-end impacts. For practical sizing, plan for about 241 N of real work at 0.5 MPa, which translates to safely lifting a 20.5 kg load vertically with a 2:1 margin. This specific U-style configuration features a flat-end rear cover, and because this SKU lacks the -S magnet, it cannot accept CMSG, DMSG, or EMSG position switches.
Airtac MF32-40 Stainless Steel Mini Cylinder MF32X70U Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF32X70U |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 70 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 MF32X70U
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 32 | Bore size in mm. |
| ×70 | 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 MF32X70U Is Used
Package Diverting Gate
Actuates a routing flap on a 30 mm wide packaging conveyor, using its 402.2 N thrust to push cardboard cartons smoothly into secondary lanes.
CNC Lathe Door Indexing
Opens and closes a sliding safety enclosure on a CNC lathe, where the compact JIS body length saves critical clearance along the machine bed.
Tote Stack Alignment
Squashes and aligns plastic totes on an automated palletizer, leveraging the flat-end U rear cover to mount flush against the steel machine frame.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF32X70U the Right Cylinder?
When sizing this 32 mm bore, the smaller MF25 provides 245.3 N of push at 0.5 MPa, whereas stepping up to the MF40 yields 628.3 N. The 1/4" port matches the 32 mm bore specification, ensuring adequate airflow for the 30-800 mm/s speed range. You can mount this unit using LB foot, FA flange, SDB pivot, or TC trunnion brackets.
Remember that the fixed TPU bumpers only decelerate the stroke end; they do not function as a lock. If air pressure drops or the valve is centred, the piston will drift, so incorporate an external rod lock or pilot-operated check valve to suspend loads safely. For the 70 mm stroke, side-load stress on the 12 mm rod is minimal, but always verify that your front-end tooling aligns straight to prevent premature seal wear. If you need position feedback, select the -S magnet variant instead.
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 MF32X70U FAQ
This 32 mm bore cylinder features a 1/4" air port and an M10x1.25 male rod thread. At 0.5 MPa it pushes with 402.2 N and pulls with 345.6 N. At 0.7 MPa the push increases to 563 N and the pull to 483.8 N. The theoretical maximum force is 82 kgf at 1.0 MPa.
No, because this specific SKU does not include the -S magnet option, it cannot accept CMSG, DMSG, or EMSG magnetic switches. You would need to order the -S variant for position sensing. Additionally, its JIS-standard round-body design is shorter than an ISO 6432 cylinder, and the fixed TPU bumpers only decelerate the stroke end rather than acting as an adjustable air cushion.
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Covers non-human-caused product damage.
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