
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ25X75-30SG is a genuine double acting, adjustable stroke + cushion round-body mini air cylinder with a Ø25mm bore and 75mm 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.
Dial in a precise forward stop on-site with the AirTAC MICJ25X75-30SG, a double-acting stainless-steel round-body mini cylinder. An external screw shortens the extend stroke by up to 30 mm, giving a usable forward range of 45-75 mm, while a needle-set variable air cushion at both ends soaks up high-speed shock. The barrel and piston rod use a riveted stainless construction that resists mild corrosion and washdown environments. A built-in magnet (-S) enables CMSG, DMSG, and EMSG sensor switches for position feedback.
Operating at 0.15-1.0 MPa through a 1/8" port, this Ø25 bore generates 245.3 N of push force and 206.1 N of pull force at 0.5 MPa. In practical terms, it delivers a safe working load of about 147 N, meaning it can vertically lift around 12.5 kg with a 2:1 safety margin. It conforms to the ISO 6432 mounting interface dimensions for standard mini brackets, and the male rod thread is M10x1.25.
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ25X75-30SG |
|---|---|
| Series | MICJ ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 75 mm |
| Acting type | Double acting, adjustable stroke + 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.
| MICJ | ISO 6432 round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×75 | Stroke length in mm. |
| -30 | Adjustable stroke window (mm the extend stroke can be shortened on site). |
| -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.
Clamps parts of varying widths on a single fixture. The 30 mm extend adjustment lets operators dial in the exact 45-75 mm forward stop without changing cylinders, while the air cushion absorbs the impact of the 245.3 N push force.
Diverts packages on a conveyor by extending a gate to a precise, tuned distance. The needle-set cushion prevents end-of-stroke banging during high-speed 30-800 mm/s cycles, and the -S magnet confirms the diverted position.
Lifts loads up to roughly 12.5 kg to different mechanical tiers. By shortening the extend stroke on-site via the external screw, the cylinder can target multiple lower positions from its 75 mm nominal stroke.
When sizing this model, compare it directly against adjacent bores: the Ø20 MICJ provides 157 N of push at 0.5 MPa, while the Ø32 steps up significantly to 402 N. Choose this Ø25 when your application requires roughly 147 N of safe working force combined with on-the-fly position tuning. The external stop screw and dual cushions are ideal for fast, repeatable set-position moves where you need to trim the endpoint without swapping hardware.
Keep in mind the MICJ25X75-30SG does not hold position on air loss; the piston drifts, and the cushion only decelerates near the stroke end—it is never a mid-stroke lock. For suspended loads, install an external rod lock or pilot check valve. Mount using LB foot, FA flange, or TC trunnion (the SDB pivot block is not available on this adjustable variant). The -S magnet allows for electronic or reed sensors.
Quick checklist
This Ø25 mm cylinder features a 1/8" port and an M10x1.25 male rod thread. At 0.5 MPa it provides 245.3 N of push force and 206.1 N of pull force. At 0.7 MPa, push increases to 343.4 N and pull to 288.5 N. The theoretical maximum force is 50 kgf at 1.0 MPa.
An external screw shortens the extend stroke by up to 30 mm (usable range 45-75 mm); retract remains full. Needle-set variable air cushions at both ends decelerate the piston near stroke ends to absorb high-speed shock. The cylinder does not hold position on air loss—the piston drifts. For load holding, use an external rod lock or pilot check valve. The -S magnet supports CMSG/DMSG/EMSG sensors.
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