
The AirTAC Airtac MIC Cushioned Mini Cylinder MIC25X450SU is a genuine double acting + cushion 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, the AirTAC MIC25X450SU is a double-acting round-body mini cylinder built for long 450 mm strokes. Its stainless-steel barrel and Ø10 mm rod shrug off mild corrosion and washdown environments. Because this Ø25 bore falls within the standard range, it uses the ISO 6432 mini-cylinder mounting interface, dropping cleanly into standard mini brackets and clevises.
A defining feature of this series 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 your payload and lowering machine noise compared to a fixed bumper. Factoring a 2:1 safety margin, this actuator lifts about 12.5 kg vertically. The U-style back cover provides a 90-degree port and mounting orientation, while the included -S magnet supports CMSG, DMSG, and EMSG position switches.
| Model | Airtac MIC Cushioned Mini Cylinder MIC25X450SU |
|---|---|
| Series | MIC ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 450 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. |
| ×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.
Uses the 245.3 N push force to deflect packages on a long 450 mm stroke, relying on the adjustable air cushion to silently stop the rod before it slams the end cap.
Lowers roughly 12.5 kg payloads smoothly using the 2:1 safety margin, where the needle-set cushion prevents harsh drops at the bottom of the 450 mm descent.
Pushes damp components out of a machining zone, benefiting from the stainless barrel and rod construction to resist mild corrosion in humid shop environments.
If you need less force, stepping down to the Ø20 bore drops the 0.5 MPa push force to 157 N; stepping up to the Ø32 bore increases it to 402 N. Choose this Ø25 model when your 450 mm stroke carries a heavy load at high speed, as the twin adjustable air cushions let you precisely dial in the deceleration to prevent end-impact bang. The 1/8" port matches the bore standard.
Remember that the air cushion only slows the piston near the stroke end and does not function as a brake. If air pressure drops, the piston will drift and cannot hold position. For suspended or vertical loads that must stay put during air loss, install an external rod lock or a pilot-operated check valve. The built-in -S magnet allows you to mount CMSG, DMSG, or EMSG sensors for stroke confirmation.
Quick checklist
This double-acting cylinder has a 25 mm bore, a 450 mm stroke, and 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 the pull is 288.5 N. The theoretical maximum force is 50 kgf at 1.0 MPa.
It features an adjustable air cushion at both ends that uses a needle valve to decelerate the piston near stroke end, reducing shock. It is not a locking brake. Because this SKU includes the -S magnet, you can directly mount CMSG, DMSG, or EMSG switches for position detection.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
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