
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ25X300-30 is a genuine double acting, adjustable stroke + 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.
Dial in a precise forward stop on-site with the AirTAC MICJ25X300-30, a stainless-steel round-body mini cylinder featuring a 30 mm adjustable extend stroke. An external stop screw trims the forward end position down from the 300 mm nominal maximum, letting you set exact reach without swapping hardware. The double-acting piston delivers 245.3 N of push force at 0.5 MPa, yielding a safe working load of roughly 147 N or a 12.5 kg vertical lift with a 2:1 margin.
Built with a stainless barrel and rod for mild washdown resistance, this Ø25 bore unit uses the ISO 6432 mounting interface and a 1/8" port. A needle-set adjustable air cushion at both ends absorbs high-speed impact up to 800 mm/s. Note this SKU lacks a magnet, so it cannot host CMSG/DMSG/EMSG sensors; order a -S variant for position detection.
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ25X300-30 |
|---|---|
| Series | MICJ ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 300 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. |
| ×300 | 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.
Pushes varied carton sizes off a belt using the 30 mm extend trim, relying on the 245.3 N force to clear items smoothly at speed.
Sets precise downward travel on a sealing head; the dual air cushions absorb the 800 mm/s impact to protect packaging materials.
Sorts items into different lane depths by tuning the forward stop on the fly, handling a safe 147 N working load effortlessly.
When sizing, the smaller Ø20 bore provides 157 N push at 0.5 MPa, while the larger Ø32 bore jumps to 402 N if you need more force. This Ø25 hits a solid middle ground at 245.3 N. The external stop screw and dual air cushions shine in fast set-position moves where you must repeatedly hit a custom forward spot and decelerate smoothly without shock.
Remember 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 unavailable on this adjustable variant). Because this SKU has no -S magnet, it cannot accept position sensors.
Quick checklist
This Ø25 bore cylinder features a 1/8" port. At 0.5 MPa it provides 245.3 N push and 206.1 N pull. At 0.7 MPa it yields 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 (usable range 270-300 mm), while needle-set air cushions at both ends decelerate the piston near the ends. This SKU has no magnet, so it cannot take sensors. The cushion only decelerates and is not a brake; the piston drifts on air loss, so use an external rod lock to hold a load.
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Covers non-human-caused product damage.
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