Airtac MF32-40 Stainless Steel Mini Cylinder MF32X20CM
The AirTAC Airtac MF32-40 Stainless Steel Mini Cylinder MF32X20CM is a genuine double acting JIS-standard round-body mini air cylinder with a Ø32mm bore and 20mm 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
- Stroke20 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 MF32X20CM
Generating 402.2 N of push force at 0.5 MPa, the AirTAC MF32X20CM is a JIS-standard round-body mini cylinder engineered for tight machinery layouts. Because its riveted SUS304 stainless barrel and aluminium covers yield a shorter overall body than an equivalent ISO 6432 unit, it slots neatly into compact fixtures. The 1/4" port and 20 mm stroke provide rapid, high-force actuation in a tiny footprint.
The double-acting piston relies on a heterogeneous two-way seal that retains an oil film for prolonged lifespan, while fixed TPU bumper pads and a front-cover anti-impact pad absorb end-of-stroke shocks. Plan for roughly 241 N of actual work at 0.5 MPa, which means it can safely lift about 20.5 kg vertically against gravity. This specific SKU lacks a magnet, so it cannot host CMSG, DMSG, or EMSG switches; you would need the -S variant for position sensing.
Airtac MF32-40 Stainless Steel Mini Cylinder MF32X20CM Technical Specifications
| Model | Airtac MF32-40 Stainless Steel Mini Cylinder MF32X20CM |
|---|---|
| Series | MF JIS mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 20 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 MF32X20CM
| MF | JIS-standard round-body mini cylinder (double-acting). |
|---|---|
| 32 | Bore size in mm. |
| ×20 | 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 MF32X20CM Is Used
Short-Stroke Clamping
Ideal for locking CNC machining fixtures, using its 402.2 N thrust to hold aluminium or steel blocks firmly in place during milling operations.
Carton Flap Folding
Provides the fast 20 mm punch needed to tuck packaging flaps on high-speed cartoning lines, where the compact JIS body saves valuable mounting length.
Component Ejection
Serves as a compact ejection pin in plastic injection moulding machines, knocking finished parts out of moulds quickly without occupying excessive tooling space.
Is the Airtac MF32-40 Stainless Steel Mini Cylinder MF32X20CM the Right Cylinder?
When sizing this 32 mm bore, moving down to the MF25 drops the 0.5 MPa push force to 245.3 N, whereas stepping up to the MF40 raises it to 628.3 N. The 20 mm stroke is extremely short, which minimizes rod-bending side loads, but always ensure the load is axially aligned to prevent guide wear. The CM round-end back cover allows pivoting rear mounting, which pairs well with FA flanges or TC trunnions for multi-axis articulation.
Keep in mind that standard double-acting operation means the rod will drift if air pressure drops or the valve is centred—the bumpers only soften the impact at stroke limits and do not function as a braking mechanism. To suspend a load safely during an emergency stop, fit 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 MF32X20CM 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, 563 N push and 483.8 N pull at 0.7 MPa, with a theoretical maximum force of 82 kgf at 1.0 MPa.
No, this specific SKU does not include a magnet, so CMSG, DMSG, or EMSG switches cannot be used. You must select the -S variant (MF32X20CMS) to enable magnetic sensing. The CM back cover provides a round-end pivot mount, and the fixed TPU bumpers decelerate the stroke without acting as an adjustable 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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