
The AirTAC Airtac MIC Cushioned Mini Cylinder MIC25X315SU is a genuine double acting + cushion round-body mini air cylinder with a Ø25mm bore and 315mm 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.
Built for high-speed strokes, this double-acting stainless steel round-body mini cylinder uses needle-set variable air cushions at both ends to decelerate the piston smoothly, protecting your payload from end-of-stroke shock. The Ø25 bore conforms to the ISO 6432 mounting interface, dropping directly into standard mini-cylinder brackets and clevises.
Delivering 245.3 N of push force and 206.1 N of pull force at 0.5 MPa, it provides a safe working load of roughly 147 N. This translates to a vertical lift capacity of about 12.5 kg with a 2:1 safety margin. The stainless barrel and rod resist mild corrosion and washdown environments. It features a U-style 90-degree rear cover, a 1/8" air port, an M10x1.25 male rod thread, and a built-in magnet (-S) for CMSG, DMSG, or EMSG position switches.
| Model | Airtac MIC Cushioned Mini Cylinder MIC25X315SU |
|---|---|
| Series | MIC ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 315 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. |
| ×315 | 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.
Handles lateral diverting of small cartons on a high-speed line where the 12.5 kg vertical lift margin and adjustable cushioning prevent harsh slamming at the 315 mm stroke end.
Pushes lightweight subcomponents into fixtures using its 245.3 N thrust, relying on the needle-set air cushion to protect delicate parts from impact damage.
Opens and closes elevated storage bin lids smoothly, using the U-style 90-degree rear cover for compact mounting and the stainless build for humid warehouse conditions.
If you need less force, the Ø20 MIC bore provides 157 N push at 0.5 MPa; if your payload is heavier, step up to the Ø32 bore rated at 402 N push. The adjustable air cushion is essential here for a 315 mm stroke moving at high speed, as it absorbs kinetic energy that a fixed bumper cannot. Remember that this cushion only decelerates the piston near the stroke end and does not lock the rod. To prevent drift on air loss, add an external rod lock or pilot-operated check valve.
You can mount this unit using LB foot, FA flange, SDB pivot, or TC trunnion brackets alongside the U back cover. Because this SKU includes the -S magnet, it is fully ready for CMSG, DMSG, and EMSG sensors. A model without the S suffix cannot accept a position switch.
Quick checklist
This double-acting cylinder pushes 245.3 N and pulls 206.1 N at 0.5 MPa. At 0.7 MPa, it pushes 343.4 N and pulls 288.5 N. The theoretical maximum force is 50 kgf at 1.0 MPa. It operates at 30-800 mm/s, uses a 1/8" air port, and has an M10x1.25 male rod thread.
No. The variable air cushion only decelerates the piston near the end of the stroke and is not a brake or lock. If air is lost, the piston will drift. For vertical loads, you must install an external rod lock or a pilot-operated check valve. The -S magnet enables CMSG, DMSG, and EMSG sensors for position feedback.
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