
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X25SUTC 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 substantial work in a compact footprint. The Ø25 mm bore conforms to ISO 6432 mounting dimensions, dropping directly into standard mini-cylinder brackets and clevises for straightforward design integration. Its stainless barrel and piston rod naturally resist mild corrosion, giving it a real edge over painted-steel or aluminium alternatives in damp, food, or outdoor environments.
Equipped with a built-in piston magnet, this unit supports CMSG, DMSG, and EMSG switches for precise position detection. Plan for about 147 N of actual work at 0.5 MPa to ensure reliable operation, which translates to lifting roughly 12.5 kg vertically with a 2:1 safety margin. The 1/8" air port feeds the chamber efficiently, while fixed TPU bumper pads absorb the impact at stroke extremes without offering adjustable cushioning.
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X25SUTC |
|---|---|
| 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.
Provides the 245 N push needed to snap heavy cardboard cartons across sorting lanes on packaging conveyors.
Secures aluminum extrusions during CNC machining operations, utilizing its 12.5 kg vertical lift capacity for reliable holding.
Deploys a rigid stop block in automated storage systems, with the TC trunnion absorbing heavy pallet impacts.
When sizing this 25 mm bore, stepping down to a 20 mm cylinder drops the 0.5 MPa push force to 157 N, whereas moving up to a 32 mm bore increases it to 402 N. This model includes a U-type 90-degree rear cover and a TC trunnion mounting accessory, providing versatile pivot options. Because this is a standard double-acting cylinder, the piston will drift if air pressure is lost or the valve is centered; the TPU bumpers only decelerate the stroke end and do not function as a lock. To suspend a load safely, incorporate an external rod lock or a pilot-operated check valve. The short 25 mm stroke keeps rod bending stresses minimal, even under dynamic lateral loads.
Quick checklist
At 0.5 MPa, the push force is 245.3 N and the pull force is 206.1 N. At 0.7 MPa, push is 343.4 N and pull is 288.5 N. The theoretical maximum force is 50 kgf at 1.0 MPa. The air port size is 1/8".
No, the piston will drift if air is lost or the valve is centered. The fixed TPU bumper pads only decelerate the rod at the stroke end and do not act as a brake. For vertical load holding, you must use an external rod lock or a pilot-operated check valve.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
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