
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ25X30-30 is a genuine double acting, adjustable stroke + cushion round-body mini air cylinder with a Ø25mm bore and 30mm 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 the forward stop on site without swapping hardware: the AirTAC MICJ25X30-30 uses an external screw to shorten the extend end position by up to 30 mm, while a needle-set adjustable air cushion at both ends soaks up high-speed shock. Built as a stainless-steel round-body mini cylinder with a 10 mm piston rod and 1/8" port, it delivers 245.3 N of push force at 0.5 MPa. The stainless barrel and rod resist mild corrosion and washdown environments, and the Ø25 body conforms to the ISO 6432 mounting interface for standard mini brackets.
With a safe working load of roughly 147 N (about 60% of its 0.5 MPa push rating), this double-acting actuator moves approximately 12.5 kg vertically with a 2:1 safety margin. The 30 mm nominal stroke is fully adjustable down to zero extend, and the retract stroke remains full length. Note this SKU lacks a magnet and cannot accept CMSG/DMSG/EMSG sensors; order the -S variant if position sensing is required.
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ25X30-30 |
|---|---|
| Series | MICJ ISO 6432 mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 30 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. |
| ×30 | 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.
Sets a precise 10-30 mm extend clamping reach on machined parts, using the 245 N force to hold firmly while the air cushion prevents end-stroke impact.
Sorts packages of varying widths on a line by tweaking the extend stop up to 30 mm on site, decelerating the 12.5 kg load smoothly via the needle cushion.
Halts cartons entering a washdown zone; the stainless build resists moisture while the forward screw dials the stopping distance to match box size.
Size this bore against the adjacent options: the smaller Ø20 MICJ yields 157 N push at 0.5 MPa, while the larger Ø32 provides 402 N. The Ø25 hits a solid middle ground at 245.3 N, ideal when you need to move about 12.5 kg vertically with a 2:1 margin. Choose this adjustable-stroke model when you need to set a precise forward position on the fly and use the dual-end air cushions to decelerate fast moves without slamming. Mount using LB foot, FA flange, or TC trunnion (the SDB pivot block is not offered on this adjustable variant). Remember the stop screw sets the end position only; it is not a mid-stroke lock. If the machine loses air, the piston drifts, so add an external rod lock or pilot check valve to hold a suspended load.
Quick checklist
This Ø25 mm bore cylinder features a 1/8" air port and an M10x1.25 male rod thread. It generates 245.3 N push and 206.1 N pull at 0.5 MPa, and 343.4 N push / 288.5 N pull at 0.7 MPa. The theoretical maximum force is 50 kgf at 1.0 MPa.
An external stop screw shortens the extend stroke by up to 30 mm on site; the retract stroke remains fixed. Needle valves adjust the air cushion at both ends to decelerate high-speed moves, but this is not a mid-stroke lock. This specific SKU has no magnet and cannot take sensors; the -S version is required for CMSG/DMSG/EMSG switches.
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