
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ25X250-100 is a genuine double acting, adjustable stroke + cushion round-body mini air cylinder with a Ø25mm bore and 250mm 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 MICJ25X250-100, a stainless-steel round-body mini cylinder that shortens the extend stroke by up to 100 mm via an external screw. Driven by 1/8" ports and a 10 mm rod, it yields a usable forward range of 150 to 250 mm while retracting fully. An adjustable air cushion at both ends absorbs high-speed shock, letting you set the position and control the impact simultaneously.
Built to the ISO 6432 mounting interface, this double-acting unit delivers 245.3 N of push force at 0.5 MPa, making the safe working load roughly 147 N. It easily lifts about 12.5 kg vertically with a 2:1 safety margin. The stainless barrel and rod resist mild corrosion and washdown environments. Note this SKU lacks a magnet, so it cannot host CMSG, DMSG, or EMSG sensors without switching to the -S variant.
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ25X250-100 |
|---|---|
| Series | MICJ ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 250 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. |
| ×250 | Stroke length in mm. |
| -100 | 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.
Tune the 100 mm extend stop to push varying box sizes off a belt without changing cylinders, relying on the 245 N force to clear items smoothly.
Set the exact forward position for different flap heights on a packaging line, using the dual air cushions to prevent harsh impacts at high speed.
Lift roughly 12.5 kg of gate weight safely, adjusting the forward stop to match specific rack heights while the cushion softens the end of travel.
When sizing this 25 mm bore, step down to a 20 mm bore for lighter loads (157 N push at 0.5 MPa) or step up to a 32 mm bore for heavier tasks (402 N push at 0.5 MPa). The 100 mm extend adjuster is ideal for fast set-position moves where you need to tune the forward endpoint without swapping hardware. Mount using LB foot, FA flange, or TC trunnion brackets, as the SDB pivot block is not offered on this adjustable variant. Pair it with a -S magnet model if you require position sensing.
Remember that the external screw sets the end position but does not function as a mid-stroke lock. The cylinder will drift and cannot hold a load on air loss, and the air cushion only decelerates the piston near the stroke end. For suspended loads, install an external rod lock or pilot-operated check valve.
Quick checklist
This 25 mm bore cylinder uses a 1/8" port and a 10 mm rod. At 0.5 MPa it provides 245.3 N push and 206.1 N pull. 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 100 mm (usable range 150-250 mm), while a needle-set adjustable air cushion at both ends absorbs high-speed shock. The screw is not a mid-stroke lock, and the cylinder drifts on air loss, so use an external rod lock for holding. This non-S SKU lacks a magnet, meaning CMSG/DMSG/EMSG sensors cannot be fitted.
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