
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X20CM is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 20mm stroke, 1/8" air ports and a stainless-steel barrel and rod for mildly corrosive environments. Its ISO 6432 mounting interface makes it a compact drop-in for standard mini-cylinder fixtures.
Delivering 245.3 N of push force at 0.5 MPa, this double-acting stainless-steel mini cylinder handles robust actuation in tight spaces. The 25 mm bore uses a 1/8" port and an M10x1.25 male rod thread, while the 20 mm stroke provides rapid, short-travel movement. Its round-body, riveted construction features a stainless barrel and rod that resist mild corrosion and washdown better than painted alternatives.
The CM round end back cover keeps the rear profile smooth for simple mounting. Because this specific SKU lacks the -S magnet, it cannot accept CMSG, DMSG or EMSG position switches. For real-world sizing, plan for about 147 N of usable work at 0.5 MPa, which translates to lifting roughly 12.5 kg vertically with a 2:1 safety margin.
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X20CM |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 20 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| 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 MI/MIC (ISO 6432) datasheet. Barrel & rod: stainless steel (round-body, riveted construction). Thread options: PT (blank) / G.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | 289 N |
| Max (@1.0 MPa) | 50 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×20 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
MI-family variants: MI / MIC (double acting ±cushion), MSI / MTI (single acting push / pull), MID / MICD (double rod ±cushion), MIJ / MICJ (adjustable stroke ±cushion). Back covers CA / U / R / CM. Mounting LB / FA / SDB / TC.
Snaps a short 20 mm diverter arm into place on a packaging line to route small cartons at high speed.
Provides 245.3 N of push at 0.5 MPa to secure an aluminium workpiece against a CNC machining fixture.
Locks a stainless-steel access hatch on a washdown station, benefiting from the rod's natural corrosion resistance.
When sizing this 25 mm bore, the smaller Ø20 generates 157 N of push at 0.5 MPa, whereas stepping up to the Ø32 yields 402 N. This model fits tasks needing moderate force in a very compact footprint. Remember that a plain cylinder drifts if air pressure drops or the valve is centred; the fixed TPU bumper pads only soften the stroke end rather than locking the load. For secure holding, install an external rod lock or a pilot-operated check valve. If position feedback is required, select the -S magnet variant instead of this non-sensing unit.
Quick checklist
This 25 mm bore cylinder uses a 1/8" port. It generates 245.3 N push and 206.1 N pull at 0.5 MPa, 343.4 N push and 288.5 N pull at 0.7 MPa, with a theoretical maximum force of 50 kgf at 1.0 MPa.
The Ø25 bore uses the ISO 6432 mounting interface, so it drops directly into standard mini-cylinder clevises and foot brackets. However, because this SKU lacks the -S magnet, it cannot accept CMSG, DMSG or EMSG switches.
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