Airtac MICJ Adjustable Mini Cylinder MICJ20X80-30S
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ20X80-30S is a genuine double acting, adjustable stroke + cushion round-body mini air cylinder with a Ø20mm bore and 80mm 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.
- BoreØ20 mm
- Stroke80 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM8×1.25
- 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 MICJ20X80-30S
Trim the forward stop by up to 30 mm on site without swapping hardware using the AirTAC MICJ20X80-30S, a double-acting stainless-steel round-body mini cylinder. The external screw shortens the extend end position (usable forward range 50-80 mm) while a needle-adjustable air cushion at both ends soaks up high-speed shock. The built-in magnet (-S) supports CMSG, DMSG, and EMSG switches for exact position detection.
Delivering 157 N of push force at 0.5 MPa, this Ø20 bore actuator handles a safe working load of roughly 94 N, moving about 8 kg vertically with a 2:1 margin. It features an M8x1.25 male rod thread, a 1/8" port, and a stainless barrel and rod for mild washdown resistance. It conforms to the ISO 6432 mounting interface for standard mini brackets.
Airtac MICJ Adjustable Mini Cylinder MICJ20X80-30S Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ20X80-30S |
|---|---|
| Series | MICJ ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 80 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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 (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | 185 N |
| Max (@1.0 MPa) | 32 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 MICJ20X80-30S
| MICJ | ISO 6432 round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×80 | 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.
Where the Airtac MICJ Adjustable Mini Cylinder MICJ20X80-30S Is Used
Adjustable Stop Clamping
Dial in the 30 mm extend trim to clamp delicate 8 kg electronic assemblies precisely, relying on the dual air cushions to absorb the impact of rapid 800 mm/s moves.
Variable Stroke Diverting
Sort light packages on a line by tuning the forward stroke on the fly; the 157 N push force easily pushes items without overshooting, thanks to the end cushions.
Washdown Sealing Press
Press film lids in a damp environment using the stainless steel construction, setting the exact 50-80 mm extend position while the magnet triggers a DMSG sensor.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ20X80-30S the Right Cylinder?
Size this 157 N @0.5 MPa actuator against the adjacent bores: step down to the Ø16 (100.5 N push) if the load is lighter, or step up to the Ø25 (245.3 N push) for heavier fixtures. The 30 mm extend adjuster plus dual air cushions excel in fast set-position moves where you must dial in a precise forward stop and decelerate smoothly without swapping cylinders.
For load holding, note that the stop screw sets the end position but is not a mid-stroke lock; the piston drifts on air loss and the cushion only decelerates near the stroke end. Use an external rod lock or pilot check valve to hold a suspended load. Mount via LB foot, FA flange, or TC trunnion (SDB is not offered on this variant), and use the -S magnet for CMSG/DMSG/EMSG sensors.
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 MICJ20X80-30S FAQ
This double-acting cylinder pushes 157 N and pulls 131.9 N at 0.5 MPa, and pushes 219.8 N / pulls 184.7 N at 0.7 MPa. The theoretical max force is 32 kgf at 1.0 MPa. It uses a 1/8" port and an M8x1.25 male rod thread.
An external screw shortens the extend stroke by up to 30 mm, while needle valves adjust the air cushions at both ends to decelerate high-speed impacts. The -S magnet enables CMSG/DMSG/EMSG sensors. The cushion only decelerates and the screw sets the end stop; neither holds the load on air loss, so use a pilot check valve for suspended loads.
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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