
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ25X80-30 is a genuine double acting, adjustable stroke + cushion round-body mini air cylinder with a Ø25mm bore and 80mm 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.
Trim the forward stop by up to 30 mm on site without swapping hardware: the AirTAC MICJ25X80-30 is a double-acting, round-body stainless-steel mini cylinder with a 1/8" port and an adjustable extend stroke. A needle-set air cushion at both ends soaks up high-speed shock, letting you set the exact end position and control the impact simultaneously.
Built with a 25 mm bore and M10x1.25 male rod thread, it delivers 245.3 N of push force at 0.5 MPa. This translates to a safe working load of roughly 147 N, or a vertical lift of about 12.5 kg with a 2:1 safety margin. The stainless barrel and rod resist mild corrosion and washdown environments, and the 25 mm size drops directly into standard ISO 6432 mini-cylinder mounting interfaces.
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ25X80-30 |
|---|---|
| Series | MICJ ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 80 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. |
| ×80 | 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.
Dial in the 30 mm extend trim to clamp delicate 12 kg workpieces securely, relying on the 245 N push force while the air cushion prevents harsh impacts.
Act as a hard stop on a conveyor line, using the adjustable forward position to time part release perfectly without shocking the 25 mm piston rod.
Apply consistent downward pressure on packaging flaps; the stainless build handles mild washdown while the cushions absorb the high-speed 80 mm stroke.
When sizing this 25 mm bore, stepping down to a 20 mm bore drops the 0.5 MPa push force to 157 N, while stepping up to a 32 mm bore raises it to 402 N. Choose this model when you need those 245 N thrust levels combined with fast, settable-position moves where the 30 mm extend trim and dual cushions prevent end-of-stroke banging.
Note that the stop screw sets the end position but is not a mid-stroke lock; the piston will drift on air loss, so add an external rod lock or pilot check valve for held loads. Mount via LB foot, FA flange or TC trunnion (SDB pivot-block is not available on this adjustable variant). Because this SKU lacks the -S magnet, it cannot take CMSG, DMSG or EMSG sensors.
Quick checklist
This 25 mm bore cylinder uses a 1/8" air port. At 0.5 MPa it provides 245.3 N push and 206.1 N pull force. At 0.7 MPa it provides 343.4 N push and 288.5 N pull. The theoretical maximum force is 50 kgf at 1.0 MPa.
An external screw shortens the extend stroke by up to 30 mm, while needle valves adjust the air cushions at both ends to decelerate the piston near the end of travel. The cushion only decelerates and is not a brake; the cylinder cannot hold a load on air loss. This SKU has no magnet, so it cannot use sensors.
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Covers non-human-caused product damage.
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