
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X280CA is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 280mm 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 tasks with ease. The 25 mm bore uses a 1/8" port and an M10x1.25 male rod thread, while the rear CA clevis bracket provides a solid pivot point for angular movement. Its rolled and riveted stainless barrel and rod naturally resist mild corrosion, outperforming painted alternatives in damp or washdown settings.
At 0.5 MPa, you can plan for roughly 147 N of actual work, which translates to lifting about 12.5 kg vertically with a safe 2:1 margin. The 280 mm stroke falls well within the 500 mm standard limit, and fixed TPU bumper pads absorb the impact at stroke ends. Because this specific SKU lacks the -S magnet, it cannot host CMSG, DMSG or EMSG sensors.
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X280CA |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 280 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. |
| ×280 | 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 arm via the CA clevis to push parcels weighing up to 12 kg off a main packaging line at 0.5 MPa.
Uses the 280 mm stroke to position a yarn guide bar, relying on the stainless build to endure humid manufacturing environments.
Extends to hold steel plates in place for robotic welding, utilizing the 245.3 N push force to secure the workpiece firmly.
When sizing this 25 mm bore, the smaller Ø20 generates 157 N of push at 0.5 MPa, whereas stepping up to the Ø32 yields 402 N. If your mechanism loses air or the valve centres, the piston will drift; the bumpers only decelerate the end of travel, so add an external rod lock or pilot check valve for strict load holding. Over the 280 mm extension, minimize side-loading to prevent rod bending and premature seal wear. Should your application require position feedback, select the -S magnet variant to enable switch mounting.
Quick checklist
This 25 mm bore cylinder features a 1/8" port and an M10x1.25 rod thread. 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.
No, this specific SKU does not include the -S magnet, so CMSG, DMSG or EMSG switches cannot be used. You would need the -S variant for position sensing. The unit uses the ISO 6432 mounting interface and fixed TPU bumper pads rather than an adjustable cushion.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.