Airtac MICJ Adjustable Mini Cylinder MICJ25X30-20S
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ25X30-20S 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.
- BoreØ25 mm
- Stroke30 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM10×1.25
- CushionVariable air cushion, both ends
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MICJ Adjustable Mini Cylinder MICJ25X30-20S
This stainless round-body mini cylinder delivers a 245.3 N push and 206.1 N pull at 0.5 MPa, making it a solid choice for light automation tasks. Its external stop screw trims the extend end by up to 20 mm on site, letting you dial in the forward position without swapping hardware. The variable air cushion at both ends absorbs high-speed shock, so you can set the stop and control the impact in one unit.
The 25 mm bore uses a 1/8" port and M10x1.25 male rod thread, fitting the ISO 6432 mini-cylinder mounting interface for standard brackets. The built-in magnet enables CMSG, DMSG, or EMSG sensors for position detection. With a safe working load around 147 N, it handles moderate payloads while the stainless barrel and rod resist mild corrosion in washdown areas.
Airtac MICJ Adjustable Mini Cylinder MICJ25X30-20S Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ25X30-20S |
|---|---|
| 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.
Theoretical Output Force (Ø25mm)
| 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.
Model Code: Airtac MICJ Adjustable Mini Cylinder MICJ25X30-20S
| MICJ | ISO 6432 round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×30 | Stroke length in mm. |
| -20 | 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.
Where the Airtac MICJ Adjustable Mini Cylinder MICJ25X30-20S Is Used
Fixture Positioning
Use the 20 mm adjustable stroke to fine-tune a fixture stop on a workbench, dialing in the exact part location without shims or cylinder swaps.
High-Speed Sorting
The dual adjustable cushions let you run this cylinder at 30-800 mm/s to push lightweight parts off a conveyor, with the needle valves soaking up end-of-stroke shock.
Light Vertical Lift
Lift about 12.5 kg with a 2:1 safety margin using the 245.3 N push force, ideal for raising small guards or light platforms in a compact envelope.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ25X30-20S the Right Cylinder?
Size this against the 20 mm MICJ (157.0 N push at 0.5 MPa) if you need less force, or step up to the 32 mm MICJ (402.2 N push at 0.5 MPa) for a significant boost. The adjustable stop and cushion shine in fast, set-position moves where you need to fine-tune the extend point and dampen end-of-stroke impact. Keep in mind this cylinder does not hold position on air loss - the piston drifts, and the cushion only decelerates near stroke end. For a held load, use an external rod lock or pilot check valve. The -S magnet allows sensor mounting, but note the SDB pivot block is not available on this adjustable-stroke variant.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G)
- ✓ Magnet (-S) for sensors?
- ✓ Back cover (CA/U/R/CM) & mount (LB/FA/SDB/TC)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Do not dismantle the riveted front/back covers.
- check Use correct back cover (CA/U/R/CM) & mount (LB/FA/SDB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac MICJ Adjustable Mini Cylinder MICJ25X30-20S FAQ
At 0.5 MPa, push is 245.3 N and pull is 206.1 N. At 0.7 MPa, push rises to 343.4 N and pull to 288.5 N. The theoretical maximum force is 50 kgf at 1.0 MPa. Operating pressure range is 0.15-1.0 MPa.
The external stop screw shortens the extend end by up to 20 mm, so the usable extend stroke is 10-30 mm while retract stays full. The needle-set air cushion at both ends decelerates the piston near stroke end to absorb shock. Note the screw sets the end position, not a mid-stroke lock, and the cushion is not a brake. The -S magnet enables CMSG, DMSG, or EMSG sensors.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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