
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X150SR is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 150mm 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 within a compact footprint. The Ø25 mm bore uses a 1/8" port and an M10x1.25 male rod thread. Its stainless barrel and rod resist mild corrosion, offering a real advantage over painted alternatives in damp or washdown environments. A built-in piston magnet (-S) supports CMSG, DMSG and EMSG switches for position sensing.
Plan for roughly 147 N of actual work at 0.5 MPa, which safely lifts about 12.5 kg vertically with a 2:1 margin. The R back cover features an axial-in port orientation. Fixed TPU bumper pads decelerate the stroke end, and the ISO 6432 mounting interface ensures compatibility with standard mini-cylinder brackets and clevises.
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X150SR |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 150 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. |
| ×150 | 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.
Shifts lightweight cardboard cartons on a packaging line using 245.3 N of thrust, with the stainless rod enduring humid warehouse conditions.
Maintains yarn tension during weaving, utilizing the 150 mm stroke to absorb slack while the built-in magnet tracks position via DMSG sensors.
Pushes prepared test tubes out of a centrifuge carousel, relying on the axial-in R port to keep hose routing tight against the machine frame.
When sizing this 150 mm stroke model, the smaller Ø20 bore provides 157.0 N push at 0.5 MPa, while the larger Ø32 bore offers 402.2 N if you need greater thrust. Because the piston drifts when air is lost or a valve centres, add an external rod lock or pilot-operated check valve if the load must be held in place. The 1/8" port and M10x1.25 thread match standard Ø25 hardware. For a 150 mm stroke, ensure your mounting arrangement—such as an LB foot or TC trunnion—prevents rod bending and side-load stress.
Quick checklist
This Ø25 mm bore cylinder features a 1/8" port. 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, the -S suffix indicates a built-in piston magnet compatible with CMSG, DMSG and EMSG switches. The cylinder uses fixed TPU bumper pads that decelerate the piston at stroke end; it does not have an adjustable air cushion.
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