Airtac MICJ Adjustable Mini Cylinder MICJ20X120-30S
The AirTAC Airtac MICJ Adjustable Mini Cylinder MICJ20X120-30S is a genuine double acting, adjustable stroke + cushion round-body mini air cylinder with a Ø20mm bore and 120mm 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
- Stroke120 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 MICJ20X120-30S
Trim the forward stop by up to 30 mm on site without swapping hardware using this stainless steel round-body mini cylinder. The MICJ20X120-30S is a double-acting actuator featuring a built-in piston magnet and an adjustable air cushion at both ends to absorb high-speed shock. With a nominal 120 mm stroke, the external screw lets you dial in the exact extend position from 90 to 120 mm while the retract remains full length.
Generating 157 N of push force at 0.5 MPa, it handles a safe working load of roughly 94 N or lifts about 8 kg vertically with a 2:1 margin. The Ø20 bore uses a 1/8" port and an M8x1.25 male rod thread. Because it carries the -S suffix, you can mount CMSG, DMSG, or EMSG sensors directly for position detection. The stainless barrel and rod provide mild washdown resistance, and the body conforms to the ISO 6432 mounting interface for standard mini brackets.
Airtac MICJ Adjustable Mini Cylinder MICJ20X120-30S Technical Specifications
| Model | Airtac MICJ Adjustable Mini Cylinder MICJ20X120-30S |
|---|---|
| Series | MICJ ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 120 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 MICJ20X120-30S
| MICJ | ISO 6432 round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×120 | 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 MICJ20X120-30S Is Used
Sorting Diverter
Pushes light packages on a line with a 94 N safe working load, using the 30 mm extend trim to hit the diverter angle perfectly without recoil.
Carton Flap Folder
Folds flaps at high speed where the dual adjustable air cushions absorb impact, while the -S magnet confirms the extend position for the sealer.
Lab Sample Ejector
Ejects vials with a 90-120 mm adjustable forward stop; the stainless build resists mild corrosion during routine washdowns.
Is the Airtac MICJ Adjustable Mini Cylinder MICJ20X120-30S the Right Cylinder?
For lighter tasks needing less than 94 N of push, the Ø16 bore supplies 100.5 N at 0.5 MPa; if your load exceeds 157 N, step up to the Ø25 bore which provides 245.3 N. This Ø20 model shines in fast set-position moves where the 30 mm extend adjuster and dual needle cushions prevent end-of-stroke banging. Foot (LB), flange (FA), and trunnion (TC) mounts are available, but the SDB pivot block is not offered on this adjustable variant. To use CMSG or EMSG switches, ensure you specify the -S magnet option as shown here.
Remember that the stop screw sets the end position but is not a mid-stroke lock. A plain cylinder does not hold its load on air loss, and the cushion only decelerates near the stroke end. If your application must prevent drift, add an external rod lock or a pilot-operated check valve.
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 MICJ20X120-30S FAQ
At 0.5 MPa it pushes 157 N and pulls 131.9 N. At 0.7 MPa it pushes 219.8 N and pulls 184.7 N. The theoretical max force is 32 kgf at 1.0 MPa. This Ø20 bore uses a 1/8" air port and an Ø8 mm piston rod.
An external screw shortens the extend stroke by up to 30 mm (usable range 90-120 mm), while needle valves tune the adjustable air cushion at both ends to soak up high-speed shock. The -S suffix means it has a magnet for CMSG/DMSG/EMSG sensors. The cushion only decelerates and the screw only sets the end position; neither acts as a mid-stroke lock, so the piston will drift on air loss unless you add an external rod lock.
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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