
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X450SCATC is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 450mm 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 over a 450 mm stroke. The Ø25 mm bore conforms to ISO 6432 mounting dimensions, dropping directly into standard mini-cylinder brackets and clevises for straightforward design integration. Its stainless barrel and rod resist mild corrosion, offering a distinct advantage over painted alternatives in damp or washdown settings.
Fixed TPU bumper pads absorb the impact at both stroke ends, though they decelerate rather than provide adjustable cushioning. For practical sizing, plan for roughly 147 N of real work at 0.5 MPa, which translates to lifting about 12.5 kg vertically with a safe 2:1 margin. The included -S piston magnet supports CMSG, DMSG and EMSG switches, while the 1/8" port manages the air supply efficiently.
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X450SCATC |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 450 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. |
| ×450 | 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.
Pushes heavier cartons on a packaging line where the 245.3 N force and 450 mm travel easily redirect items to secondary chutes.
Maintains thread tension dynamics in damp textile environments, leveraging the stainless rod and CA clevis for smooth pivot action.
Actuates pivot gates on automated storage retrieval systems, using the TC trunnion to handle the long 450 mm swing arc reliably.
When sizing this 245.3 N (at 0.5 MPa) unit, the smaller Ø20 bore provides 157.0 N, whereas stepping up to the non-ISO Ø32 bore yields 402.2 N. This model features a CA pivot clevis back cover and a TC trunnion mounting accessory, giving you flexible pivot options for the 450 mm travel. Because this is a relatively long stroke for a mini cylinder, minimize side loading to prevent rod bending and premature seal wear.
Remember that a standard double-acting cylinder drifts when air pressure is removed or the valve is centered, as the TPU bumpers only soften the end-of-stroke impact without locking the piston. If your application requires the load to be held securely in place during a pressure loss, you must add an external rod lock or a pilot-operated check valve to the system.
Quick checklist
This Ø25 mm bore cylinder features a 1/8" port and generates 245.3 N push and 206.1 N pull at 0.5 MPa. 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 -S suffix denotes a built-in piston magnet, allowing you to mount CMSG, DMSG or EMSG electronic switches. It uses fixed TPU bumper pads to decelerate the stroke end; it does not have adjustable air cushioning, which is reserved for the MIC variant.
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