
The AirTAC Airtac MIC Cushioned Mini Cylinder MIC25X400SCA is a genuine double acting + cushion round-body mini air cylinder with a Ø25mm bore and 400mm 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, the AirTAC MIC25X400SCA is a double-acting, round-body stainless steel mini cylinder built for a 400 mm stroke. A built-in piston magnet (-S) enables position sensing with CMSG, DMSG, or EMSG switches, while the CA rear cover provides a robust clevis pivot. It uses a 1/8" port and an M10x1.25 male rod thread.
The defining feature of this ISO 6432 mounting-interface unit is the adjustable air cushion at both ends. By turning a needle valve, you tune the end-of-stroke deceleration to absorb high-speed shock, protecting the load and cutting noise far better than a fixed rubber bumper. The stainless barrel and rod resist mild corrosion and washdown. For sizing, this bore yields a safe working load of roughly 147 N, lifting about 12.5 kg vertically with a 2:1 safety margin.
| Model | Airtac MIC Cushioned Mini Cylinder MIC25X400SCA |
|---|---|
| Series | MIC ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 400 mm |
| Acting type | Double acting + cushion |
| 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 | Variable air cushion, both ends |
| 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.
| MIC | ISO 6432 round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×400 | 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.
Uses the 245.3 N push force to push cartons off a belt at speed, relying on the adjustable air cushion to prevent harsh end-of-stroke impacts over the 400 mm travel.
Drives packaging flaps rapidly during case erecting, where the needle-set cushion smoothly slows the 25 mm rod to protect delicate cardboard and mechanical links.
Leverages the CA clevis rear cover to swing a routing gate, handling the 12.5 kg vertical load margin while the stainless build resists damp warehouse conditions.
When sizing this 25 mm bore, stepping down to the MIC20 drops the 0.5 MPa push force to 157 N, whereas moving up to the MIC32 raises it to 402 N. Choose this model when cycling the 400 mm stroke at high speeds, as the adjustable air cushion is essential to smoothly decelerate the load without slamming. It uses standard ISO 6432 mini-cylinder mounting dimensions, so it drops directly into standard brackets and clevises.
Remember that the cushion only decelerates the piston near the stroke end; it does not lock or hold the load. If air pressure drops, the piston will drift, so fit an external rod lock or pilot-operated check valve for suspended loads. The -S magnet allows CMSG, DMSG, or EMSG sensors to track position, and the CA back cover suits pivoting mount setups.
Quick checklist
This 25 mm bore cylinder uses a 1/8" port and an M10x1.25 male 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 force of 50 kgf at 1.0 MPa.
The -S suffix means it has a built-in magnet for CMSG, DMSG, or EMSG switches. The adjustable air cushion only decelerates the piston near stroke end to reduce shock; it is not a brake. The cylinder will drift on air loss, so use an external rod lock or pilot check valve to hold suspended loads.
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