
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X80R is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 80mm 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.
Generating 245.3 N of push force at 0.5 MPa, this double-acting stainless-steel round-body mini cylinder handles substantial work within a compact footprint. The 25 mm bore uses a 1/8" port and an M10x1.25 male rod thread, while the rear R cover features an axial-in port orientation to simplify tight plumbing layouts. Its riveted stainless barrel and rod shrug off mild corrosion, giving a real advantage over painted alternatives in damp or washdown environments.
The fixed TPU bumper pads absorb end-of-stroke impact, and the body conforms to ISO 6432 mounting dimensions for straightforward bracket integration. Plan for a safe working load of roughly 147 N, or lifting about 12.5 kg vertically with a 2:1 safety margin. Because this specific SKU lacks the -S magnet, it cannot host CMSG, DMSG or EMSG position switches.
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X80R |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 80 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. |
| ×80 | 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.
Swings a sorting gate on a packaging line, using the 245.3 N thrust to push heavy cartons reliably at speed.
Maintains consistent fabric tension in humid dye-house conditions where the stainless barrel resists mild corrosion.
Acts as a robust 80 mm stroke physical stop for pallets, with the rear R axial port keeping hoses clear of the load path.
Sizing centres on the 245.3 N push (206.1 N pull) at 0.5 MPa; if you need less force, the Ø20 bore provides 157.0 N, while stepping up to the Ø32 yields 402.2 N. The 80 mm stroke sits well within the 500 mm maximum, keeping rod bending stress low. With no -S magnet on this unit, position sensing is impossible without changing to an -S variant. For vertical loads, remember the piston drifts if air drops or the valve centres—the TPU pads only decelerate the stroke end, so fit an external rod lock or pilot check valve to hold position.
Quick checklist
This 25 mm bore cylinder features a 1/8" port and an M10x1.25 rod thread. 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 of 50 kgf at 1.0 MPa.
Yes, it shares ISO 6432 mounting dimensions so it drops into standard mini-cylinder brackets and clevises. However, because this specific SKU lacks the -S magnet, it cannot accept CMSG, DMSG or EMSG switches; you would need the -S variant for sensing.
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