
The AirTAC Airtac MID Series Double Rod Mini Cylinder MID25X150S is a genuine double acting, double rod 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 206.1 N of equal thrust in both extend and retract directions, the AirTAC MID25X150S is a round-body stainless steel mini cylinder built for symmetric actuation. Because a Ø10 mm piston rod exits both end covers, the working area is identical on each side, completely eliminating the push-pull force differential found in single-rod units. This through-rod geometry also resists rotation and side load, providing steadier guidance for light-duty tasks without needing an external guide rail.
The stainless barrel and rod shrug off mild corrosion and washdown environments, while the built-in magnet (denoted by the -S suffix) enables position sensing with CMSG, DMSG or EMSG switches. Operating at 0.5 MPa, it offers a safe working load of roughly 124 N, or about 60% of its theoretical output. For vertical lifts, this translates to moving around 10.5 kg each way with a 2:1 safety margin. Air connects via a 1/8" port, and fixed TPU bumper pads absorb shock at the stroke extremes.
| Model | Airtac MID Series Double Rod Mini Cylinder MID25X150S |
|---|---|
| Series | MID ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 150 mm |
| Acting type | Double acting, double rod |
| 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 | Force (both ways) |
|---|---|
| 0.5 MPa | 206 N |
| 0.7 MPa | 289 N |
| Max (@1.0 MPa) | 42 kgf |
Double-rod: a rod exits both covers, so output force is equal in both directions (rod-side area used).
| MID | ISO 6432 round-body mini cylinder (double-rod). |
|---|---|
| 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.
With 206.1 N of equal force both ways and a twin rod that resists rotation, this cylinder drives light clamping and push-pull fixtures without deflecting or twisting under load.
The extended rear rod end provides a convenient mounting point to physically trip a limit switch or carry a flag, giving designers a simple mechanical signal at stroke completion.
Moving approximately 10.5 kg vertically with a 2:1 safety margin, it smoothly shuttles small parts or trays between two stations using identical force in both directions.
When sizing this 25 mm bore, consider that the smaller MID20X150S delivers 131.9 N at 0.5 MPa, while the larger MID32X150S provides 345.6 N if you need substantially more force. The double-rod design shines in applications requiring anti-rotation stability, a back-rod switch trip, or a twin-load drive. Keep in mind that a plain cylinder drifts on air loss—the fixed TPU bumpers only soften the end of stroke, so add an external rod lock or pilot check valve if the load must be held in place.
This model uses the ISO 6432 mini-cylinder mounting interface, dropping easily into standard brackets and clevises. You can choose LB foot, FA flange, or TC trunnion mounts, along with CA, U, R, or CM back covers, but note the SDB pivot-block is not available on this double-rod variant. Position sensing is fully supported here thanks to the -S magnet option.
Quick checklist
Because the double-rod design has a rod on each side, force is equal both ways. It delivers 206.1 N at 0.5 MPa, 288.5 N at 0.7 MPa, and a maximum of 42.0 kgf at 1.0 MPa. Air is supplied via the 1/8" port.
No, the piston will drift on air loss. The fixed TPU bumper pads only decelerate the piston near the stroke end and do not act as a brake. To hold a suspended load, you must use an external rod lock or a pilot-operated check valve.
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