
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X20SCA is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 20mm 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 in a compact footprint. The Ø25 mm bore conforms to ISO 6432 mounting dimensions, dropping directly into standard mini-cylinder brackets and clevises for easy design integration. Its stainless barrel and rod resist mild corrosion, giving it a real edge over painted alternatives in damp or washdown environments.
Equipped with a built-in magnet for CMSG, DMSG, or EMSG sensors, the unit uses fixed TPU bumper pads to decelerate the stroke end. With a 0.5 MPa push rating of 245.3 N, 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 1/8" port and M10x1.25 male rod thread ensure robust pneumatic and mechanical connections.
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X20SCA |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 20 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. |
| ×20 | 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.
Snaps a sorting flap on a packaging line in just 20 mm of travel, utilizing the 245.3 N push force to redirect heavy cartons reliably.
The stainless construction survives damp food-processing zones, while the CA clevis allows the cylinder to pivot smoothly as it opens and closes a fluid valve.
Uses the 12.5 kg vertical lift equivalent to hold a lightweight gate or stopper mechanism on a low-profile material handling conveyor.
When sizing this 20 mm stroke model, compare it against its neighbors: a Ø20 bore provides 157.0 N of push at 0.5 MPa, while stepping up to a Ø32 yields 402.2 N. This Ø25 strikes a balance, though if your application loses air or centers the valve, the piston will drift; the bumpers only soften the end of travel and do not act as a lock. For securing a suspended load, add an external rod lock or pilot check valve.
The CA rear pivot cover is ideal for clevis mounting on short-stroke pivoting mechanisms. Because this SKU includes the -S magnet, it is fully ready for position sensing. Despite the brief 20 mm travel, minimize side-loading to prevent rod bending and premature seal wear.
Quick checklist
This double-acting cylinder has a 1/8" port and generates 245.3 N push / 206.1 N pull at 0.5 MPa, and 343.4 N push / 288.5 N pull at 0.7 MPa. The theoretical maximum force is 50 kgf at 1.0 MPa.
Yes, the -S suffix means it has a built-in magnet for CMSG, DMSG, or EMSG switches. The CA back cover provides a rear pivot/clevis mounting interface, and the Ø25 bore follows ISO 6432 mounting dimensions for standard mini-cylinder brackets.
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