
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ25X125-100 is a genuine double acting, adjustable stroke + cushion round-body mini air cylinder with a Ø25mm bore and 125mm 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 100 mm on site without swapping cylinders using the AirTAC MICJ25X125-100. This double-acting, round-body stainless steel mini cylinder pairs that external extend adjuster with a needle-set air cushion at both ends to soak up high-speed shock. The 1/8" ported, Ø25 mm bore delivers 245.3 N of push force at 0.5 MPa, yielding a safe working load of about 147 N or a 12.5 kg vertical lift with a 2:1 margin.
Built with a riveted stainless barrel and rod, it resists mild corrosion and washdown environments. It conforms to the ISO 6432 mounting interface for standard mini brackets. Because this SKU lacks the -S magnet, it cannot take CMSG, DMSG or EMSG sensors. The stop screw sets the end position but is not a mid-stroke lock; the piston will drift on air loss.
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ25X125-100 |
|---|---|
| Series | MICJ ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 125 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. |
| ×125 | 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.
Dial in a precise 25-125 mm press stroke for seating bearings. The 245.3 N push force handles light presses, while the needle cushion absorbs the end impact.
Route different carton sizes on a line by trimming the extend stop up to 100 mm on the fly. The stainless build survives mildly corrosive washdown zones.
Fold varying box flaps at speed. The dual air cushions decelerate the 206.1 N pull force smoothly, preventing damage to the packaging materials.
Size this 245.3 N push force against your actual load. If you need less force, the Ø20 bore provides 157.0 N at 0.5 MPa; if you need more, step up to the Ø32 bore for 402.2 N. The 100 mm extend adjustment window is ideal for fast set-position moves where you need to dial in a precise forward stop without machining spacers. The dual air cushions handle high-impact deceleration up to 800 mm/s.
Remember that the stop screw and cushions only decelerate near the stroke end; they do not hold the load on air loss. For a suspended load, add an external rod lock or pilot check valve. Mount via LB foot, FA flange or TC trunnion, as the SDB pivot-block is not available on this adjustable variant. If you need position sensing, select the -S magnet version instead.
Quick checklist
At 0.5 MPa this Ø25 mm bore cylinder provides 245.3 N of push force and 206.1 N of pull force. At 0.7 MPa it delivers 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, letting you set the forward position without changing the cylinder. Needle valves adjust the air cushions at both ends to decelerate high-speed moves. This SKU has no -S magnet so it cannot take sensors. The cushions only decelerate; they do not lock the piston, so the load drifts on air loss.
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