Airtac MF32-40 Stainless Steel Mini Cylinder MF32X120SU
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF32X120SU is a genuine double acting JIS-standard round-body mini air cylinder with a Ø32mm bore and 120mm 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
- Stroke120 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 MF32X120SU
Delivering 402.2 N of push force at 0.5 MPa, this double-acting JIS-standard round-body mini cylinder uses a SUS304 stainless barrel with riveted aluminium covers to resist mild corrosion and washdown. For the same 32 mm bore and 120 mm stroke, the MF body is physically shorter than a comparable ISO 6432 unit, saving valuable mounting length in tight machinery. The piston relies on a two-way oil-retaining seal for long life, while fixed TPU bumper pads and a front-cover anti-impact pad soften the stroke-end impact.
Because the 1/4" port feeds a 32 mm bore, plan for roughly 241 N of actual work at 0.5 MPa to maintain a safe margin. Vertically, this translates to lifting about 20.5 kg with a 2:1 safety factor, letting you match real part weights accurately. This SKU includes a built-in magnet for position sensing and features a flat-end U back cover.
Airtac MF32-40 Stainless Steel Mini Cylinder MF32X120SU Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF32X120SU |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 120 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 MF32X120SU
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 32 | Bore size in mm. |
| ×120 | 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 MF32X120SU Is Used
Package Diverting Gate
Actuates a routing flap on a packaging conveyor, using the 402.2 N push force to redirect cartons weighing up to 20 kg into secondary lanes.
CNC Lathe Bar Pusher
Feeds raw bar stock into a collet chuck, where the compact JIS body length saves valuable Z-axis space behind the spindle.
Pallet Stacking Arm
Raises lightweight cardboard components using the 120 mm stroke, relying on the flat-end U back cover for flush mounting against the machine frame.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF32X120SU the Right Cylinder?
When sizing this 32 mm bore, the smaller MF25 provides 245.3 N at 0.5 MPa, whereas stepping up to the MF40 yields 628.3 N. The 120 mm stroke is well within the 500 mm standard limit, though at this extension you should watch for side-loading to prevent rod bending. The included -S magnet enables CMSG, DMSG, or EMSG switches for end-of-stroke detection.
Remember that a standard double-acting cylinder will drift if air pressure drops or the valve is centred; the TPU bumpers only decelerate the piston near the end of travel and do not function as a braking lock. To suspend a load safely during an air loss event, fit an external rod lock or a pilot-operated check valve. Beyond the flat-end U rear cover, you can adapt the body using LB foot, FA flange, SDB pivot, or TC trunnion hardware.
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 MF32X120SU FAQ
This 32 mm bore cylinder features a 1/4" port and an M10x1.25 male rod thread. It generates 402.2 N push and 345.6 N pull at 0.5 MPa, increasing to 563 N push and 483.8 N pull at 0.7 MPa. The theoretical maximum force is 82 kgf at 1.0 MPa.
No, the base MF uses fixed TPU bumper pads that decelerate the stroke end but cannot be adjusted; for variable air cushioning you need the MFC variant. The SUS304 stainless build is shorter than an ISO 6432 cylinder, and the -S magnet allows CMSG, DMSG, or EMSG sensors.
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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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