
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X500CM is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 500mm 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 over a 500 mm travel. The Ø25 mm bore operates on a 1/8" port, and its CM round end back cover neatly tucks the rear air connection away for flush mounting. Built with a riveted stainless barrel and rod, it shrugs off mild corrosion better than painted aluminium alternatives in damp production areas.
Because the 245.3 N rating is theoretical, plan for a safe working load of about 147 N of actual work at 0.5 MPa. In vertical lift terms, that means it can reliably raise a 12.5 kg part with a 2:1 safety margin. Fixed TPU bumper pads absorb the impact at stroke extremes, and its ISO 6432 mounting dimensions let it drop straight into standard mini-cylinder clevises.
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X500CM |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 500 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. |
| ×500 | 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.
Uses the full 500 mm stroke to push heavy cardboard cartons from a main packaging conveyor to a side taping station.
Extends to clamp and align loose product layers on a build pallet before the strapping head cycles.
Pulls long stainless test tubes out of a heated chemical bath, leveraging the 206.1 N pull force at 0.5 MPa.
At the top of the standard stroke limit for this bore, the 500 mm travel demands careful alignment to prevent rod bending under side loads. If you need less push, the Ø20 bore drops the 0.5 MPa force to 157 N; stepping up to the non-ISO Ø32 bore yields 402 N. This SKU lacks the -S magnet, so it cannot host CMSG, DMSG or EMSG sensors—order the -S variant if position detection is required. You can mount it via LB foot, FA flange, SDB pivot or TC trunnion.
Remember that venting the air or centering the valve lets the piston drift freely, as the TPU pads only soften the end-of-stroke impact rather than locking the rod. To suspend a load safely mid-stroke, fit an external rod lock or a pilot-operated check valve.
Quick checklist
This Ø25 mm bore cylinder pushes with 245.3 N and pulls with 206.1 N at 0.5 MPa. 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. It uses a 1/8" air port and features an M10x1.25 male rod thread.
No, this specific SKU lacks the internal magnet, so CMSG, DMSG and EMSG switches will not function. You must order the -S variant to enable magnetic sensing. The cylinder uses fixed TPU bumper pads to decelerate the stroke end, and its stainless round body conforms to ISO 6432 mounting dimensions.
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