
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X160U is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 160mm 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 demanding actuation with a 160 mm stroke. The Ø25 bore uses a 1/8" port and a 10 mm rod. Its stainless barrel and rod resist mild corrosion, giving it a real edge over painted alternatives in damp or washdown settings. Fixed TPU bumper pads absorb the impact at stroke extremes, while the U-style back cover provides a 90-degree port orientation for tight layouts.
For practical sizing, plan for roughly 147 N of real work at 0.5 MPa, which means it can safely lift about 12.5 kg vertically on a 2:1 margin. Because this SKU lacks the -S magnet, it cannot accept CMSG, DMSG or EMSG position switches. The ISO 6432 mounting interface lets you drop it straight into standard mini-cylinder brackets and clevises.
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X160U |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 160 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. |
| ×160 | 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 routing flap on a packaging line, using its 245.3 N thrust to push parcels firmly into the correct sorting lane.
Acts as a heavy-duty stopper for loaded pallets entering a stretch wrapper, absorbing the impact via fixed TPU bumper pads.
Maintains yarn tension on a weaving machine, where the stainless steel rod withstands the humid manufacturing environment.
When sizing this 25 mm bore, the adjacent 20 mm option yields 157.0 N push while the larger 32 mm provides 402.2 N at 0.5 MPa, letting you step up or down if 245.3 N is slightly too much or too little. With a 160 mm stroke, keep an eye on side loading to avoid bending the 10 mm piston rod. This U-type rear cover mounts at 90 degrees, and you can pair the body with LB foot, FA flange, SDB pivot or TC trunnion hardware.
Remember that a plain double-acting cylinder drifts when air is lost or the valve is centred; the TPU bumpers only decelerate the end of travel and do not act as a brake. To suspend a load securely, add an external rod lock or a pilot-operated check valve. If you need position feedback, select the -S magnet version to enable sensing.
Quick checklist
At 0.5 MPa it provides 245.3 N push and 206.1 N pull. At 0.7 MPa it delivers 343.4 N push and 288.5 N pull. The theoretical maximum force is 50 kgf at 1.0 MPa. This 25 mm bore cylinder features a 1/8" air port.
No, this specific SKU does not include a magnet, so it cannot accept CMSG, DMSG or EMSG switches. You must select the -S variant (MI25X160U-S) if you require position sensing. It uses fixed TPU bumper pads rather than an adjustable air cushion.
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