
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X25RTC 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 25 mm stroke. The riveted stainless barrel and Ø10 mm rod shrug off mild corrosion, giving it a real edge over painted alternatives in damp or washdown settings. Its ISO 6432 mounting dimensions mean it drops directly into standard mini-cylinder brackets and clevises.
Plan for roughly 147 N of actual work at 0.5 MPa to maintain a safe margin, which translates to lifting about 12.5 kg vertically. The 1/8" port feeds air to extend and retract the rod at 30-800 mm/s. Fixed TPU bumper pads absorb the stroke-end impact, and the R back cover provides an axial-in port orientation for tight routing.
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X25RTC |
|---|---|
| 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.
Grips and holds metal workpieces in CNC machining fixtures using its 245.3 N push force over a rapid 25 mm travel.
Folds corrugated cardboard flaps on automated packing lines where the stainless body resists humid warehouse environments.
Pivots sorting gates on logistics conveyors via the TC trunnion mount, benefiting from the axial R rear port for neat routing.
When sizing this 25 mm bore, the smaller Ø20 generates 157.0 N of push at 0.5 MPa, while the larger Ø32 provides 402.2 N if you need more muscle. This SKU includes a TC trunnion mount and uses the R axial rear port. Because it lacks the -S suffix, it cannot accept CMSG, DMSG or EMSG magnetic sensors; add the magnet variant if you need position detection. The short 25 mm stroke keeps rod bending minimal, but remember a plain cylinder drifts if air is lost—the TPU pads only decelerate the end of travel and act as neither a lock nor a brake. Fit an external pilot check valve to hold a suspended load.
Quick checklist
At 0.5 MPa it pushes with 245.3 N and pulls with 206.1 N. At 0.7 MPa the push is 343.4 N and pull is 288.5 N. The theoretical maximum force is 50 kgf at 1.0 MPa. Air connects via a 1/8" port, and the male rod thread is M10x1.25.
No, this specific SKU lacks the internal magnet so it cannot host CMSG, DMSG or EMSG switches. You would need the -S variant for position sensing. It relies on fixed TPU bumper pads to decelerate the stroke end, not an adjustable air cushion.
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