
The AirTAC Airtac MI25~40 Stainless Steel Mini Cylinder MI25X25SCM is a genuine double acting round-body mini air cylinder with a Ø25mm bore and 25mm 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 linear motion tasks. 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 real advantage over painted alternatives in damp or washdown environments.
Equipped with a built-in piston magnet (-S), the unit supports CMSG, DMSG and EMSG reed or electronic switches for position sensing. The rear CM round end cover provides a clean, compact profile for tight assemblies. For practical sizing, plan for roughly 147 N of actual work at 0.5 MPa, which translates to lifting about 12.5 kg vertically with a 2:1 safety margin. Fixed TPU bumper pads absorb stroke-end impact, and the 1/8" port ensures adequate airflow for its 30-800 mm/s speed range.
| Model | Airtac MI25~40 Stainless Steel Mini Cylinder MI25X25SCM |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 25 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. |
| ×25 | 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.
Actuates a lightweight routing flap on a packaging line, using the 245.3 N thrust to push corrugated boxes onto a secondary belt.
Secures aluminium extrusions during a milling operation, providing reliable holding pressure without exceeding the 12.5 kg safe lift equivalent.
Closes cardboard carton flaps prior to taping in a logistics hub, benefiting from the stainless build in occasionally humid loading dock conditions.
When sizing this 25 mm bore, stepping down to the Ø20 model reduces the 0.5 MPa push force to 157.0 N, while stepping up to the non-ISO Ø32 yields 402.2 N. This 25 mm option strikes a balance for medium-duty tasks. Because it is a double-acting cylinder, the piston will drift if air pressure drops or the valve is centred; the TPU bumpers only decelerate the stroke end and do not function as a brake. For suspended loads, incorporate an external rod lock or pilot check valve.
The short 25 mm stroke keeps the rod bending risk minimal, but side loading should still be avoided to preserve seal life. This specific SKU includes the -S magnet for sensing and the CM round back cover. Mounting flexibility is broad, with options including LB foot, FA flange, SDB pivot, and TC trunnion brackets.
Quick checklist
This double-acting cylinder uses a 1/8" air port. At 0.5 MPa it pushes with 245.3 N and pulls with 206.1 N. At 0.7 MPa the push is 343.4 N and pull is 288.5 N. The theoretical maximum force is 50 kgf at 1.0 MPa.
Yes, the -S suffix indicates a built-in piston magnet, allowing you to mount CMSG, DMSG or EMSG switches for position detection. It features fixed TPU bumper pads that decelerate the stroke end; it does not have an adjustable air cushion, which is found on the MIC variant.
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