
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X25UTC 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 riveted Ø25 mm barrel and rod shrug off mild corrosion, making it superior to painted alternatives in damp or washdown environments. Its 1/8" port and M10x1.25 male rod thread provide solid pneumatic and mechanical connections.
With a 25 mm stroke, the fixed TPU bumper pads absorb end-of-travel impacts without offering adjustable cushioning. Plan for roughly 147 N of actual work at 0.5 MPa to ensure reliable operation. This translates to lifting about 12.5 kg vertically with a 2:1 safety margin, letting you match the actuator directly to real part weights.
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X25UTC |
|---|---|
| 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.
Pivots a sorting flap on a packaging line using the TC trunnion, relying on the 245.3 N thrust to push heavy cartons smoothly.
Secures aluminum extrusions in a machining fixture, utilizing the 12.5 kg vertical lift equivalent to hold parts against a stop.
Adjusts yarn tensioner arms in a humid manufacturing environment where the stainless steel barrel prevents mild corrosion.
When sizing this bore, stepping down to a Ø20 unit drops the 0.5 MPa push force to 157.0 N, while moving up to a Ø32 raises it to 402.2 N. This model features a U 90-degree back cover and a TC trunnion mount, providing versatile pivot integration. Remember that the fixed bumpers only decelerate the stroke end; if air pressure drops, the piston will drift. Use an external rod lock or pilot check valve for secure load holding.
Because this specific SKU lacks the -S magnet suffix, it cannot accept CMSG, DMSG, or EMSG position switches. If your sequencing requires sensor feedback, select the -S variant. The short 25 mm stroke also minimizes rod bending under side loads, keeping guide wear low.
Quick checklist
At 0.5 MPa it provides 245.3 N push and 206.1 N pull. At 0.7 MPa it provides 343.4 N push and 288.5 N pull. The theoretical maximum force is 50 kgf at 1.0 MPa. The air port size is 1/8".
This SKU lacks the -S magnet, so it cannot accept CMSG, DMSG, or EMSG switches. However, the Ø25 mm round body uses the ISO 6432 mounting interface, dropping directly into standard mini-cylinder brackets and clevises.
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