
The AirTAC Airtac MIC Cushioned Mini Cylinder MIC25X300SU is a genuine double acting + cushion round-body mini air cylinder with a Ø25mm bore and 300mm 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.
Driving 245.3 N of push force at 0.5 MPa, this double-acting stainless steel round-body mini cylinder handles a 300 mm travel requirement with precision. The Ø25 bore conforms to the ISO 6432 mounting interface, dropping directly into standard mini-cylinder brackets and clevises. It features a 1/8" port and an M10x1.25 male rod thread.
A defining trait of the MIC series is the adjustable air cushion at both ends, letting you tune a needle valve to decelerate heavy loads smoothly at high speeds rather than slamming into a fixed bumper. The stainless barrel and rod resist mild corrosion and washdown environments. Because this SKU includes the -S magnet, it supports CMSG, DMSG and EMSG position switches. Factoring a 2:1 safety margin, it lifts about 12.5 kg vertically, equating to a safe working load near 147 N.
| Model | Airtac MIC Cushioned Mini Cylinder MIC25X300SU |
|---|---|
| Series | MIC ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 300 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. |
| ×300 | 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 thrust to push medium-weight cartons off a high-speed belt line, relying on the adjustable cushions to stop the 300 mm stroke without harsh impacts.
Drives a sealing jaw over a long travel distance, where the needle-set cushions ensure the jaw decelerates smoothly before crushing the packaging material.
Lifts a 12.5 kg access gate with a 2:1 safety margin, taking advantage of the stainless build for humid warehouse environments and the -S magnet for position feedback.
When sizing this 300 mm stroke actuator, compare it against the adjacent bores in the range. Stepping down to the Ø20 bore drops the 0.5 MPa push force to 157 N, while stepping up to the Ø32 bore increases it to 402 N. Choose this Ø25 model when your application demands that middle-ground thrust. The adjustable end cushions are essential if you are running near the 800 mm/s maximum speed, as they absorb kinetic energy and protect the load.
This variant uses a U-style back cover for 90-degree port and mounting orientation. Remember that the air cushion only decelerates the piston near the stroke end; it does not function as a brake or lock. If your machine loses air, the piston will drift, so fit an external rod lock or pilot check valve to hold a suspended load. Mounting options include LB foot, FA flange, SDB pivot and TC trunnion blocks.
Quick checklist
This double-acting cylinder has 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.
No, the adjustable air cushion only decelerates the piston near the end of the stroke and is not a brake or lock. If air pressure is lost, the piston will drift, requiring an external rod lock or pilot check valve to hold a suspended load securely.
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