
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X25CATC is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 25mm 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 round-body mini cylinder handles robust actuation in tight spaces. The 25 mm bore uses a 1/8" port and an M10x1.25 male rod thread. Its stainless barrel and rod resist mild corrosion, giving it a real edge over painted steel in damp or washdown environments. Plan for about 147 N of actual work at 0.5 MPa, which means it lifts roughly 12.5 kg vertically with a 2:1 safety margin.
The Ø25 body conforms to ISO 6432 mounting dimensions, dropping directly into standard mini-cylinder brackets and clevises. Fixed TPU bumper pads absorb stroke-end impact to decelerate the piston smoothly. Because this specific SKU lacks the -S magnet, it cannot accept CMSG, DMSG or EMSG position switches.
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X25CATC |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 25 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. |
| ×25 | 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.
Drives short-stroke clamping arms on machining fixtures, using its 245 N push force to secure aluminium housings during milling.
Pivots a sorting flap on a packaging conveyor via the CA clevis, handling the 12.5 kg vertical lift requirement of the gate mechanism.
Extends a 25 mm stopper blade on a stainless-steel washdown line, holding corrugated cartons momentarily for labeling.
When sizing this 25 mm bore, stepping down to a 20 mm cylinder drops the 0.5 MPa push force to 157 N, while moving up to a 32 mm bore increases it to 402 N. This model includes a CA rear pivot cover and pairs with a TC trunnion mount, ideal for articulating mechanisms that require angular alignment. The 25 mm stroke keeps the rod short to minimize side-load bending.
Note that a standard double-acting cylinder drifts when air pressure is lost or the valve is centered. The TPU bumpers only soften the end of stroke and do not function as a brake. To suspend a load safely, install an external rod lock or a pilot-operated check valve.
Quick checklist
This 25 mm bore cylinder features 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.
No, this specific SKU does not include the -S magnet, so it cannot accept CMSG, DMSG or EMSG switches. You would need the -S variant for magnetic sensing. It uses fixed TPU bumper pads for deceleration and features a CA clevis with TC trunnion mounting.
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