Airtac MIJ Adjustable Cylinder MIJ20X30-20S
The AirTAC Airtac MIJ Adjustable Cylinder MIJ20X30-20S is a genuine double acting, adjustable stroke round-body mini air cylinder with a Ø20mm 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.
- BoreØ20 mm
- Stroke30 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke
- Rod threadM8×1.25
- CushionFixed TPU bumper pads
- 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 MIJ Adjustable Cylinder MIJ20X30-20S
Dial in your forward end position on the fly with the AirTAC MIJ20X30-20S, a double-acting round-body mini cylinder built with a stainless-steel barrel and rod for mild washdown resistance. An external stop screw lets you shorten the extend stroke by up to 20 mm on-site, yielding a usable 10-30 mm forward travel without swapping parts, while retract remains full. It conforms to the ISO 6432 mounting interface for standard mini brackets.
Delivering 157 N of push force at 0.5 MPa, this bore size handles meaningful workloads, offering a safe working load of roughly 94 N or a vertical lift capacity of about 8 kg with a 2:1 margin. The 1/8" port and M8x1.25 male rod thread provide robust connections, and fixed TPU bumper pads decelerate the piston at the stroke end. Because this SKU includes the -S magnet, it is fully ready for CMSG, DMSG, or EMSG position sensing.
Airtac MIJ Adjustable Cylinder MIJ20X30-20S Technical Specifications
| Model | Airtac MIJ Adjustable Cylinder MIJ20X30-20S |
|---|---|
| Series | MIJ ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 30 mm |
| Acting type | Double acting, adjustable stroke |
| 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 | Fixed TPU bumper pads |
| 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 MIJ Adjustable Cylinder MIJ20X30-20S
| MIJ | ISO 6432 round-body mini cylinder (adjustable-stroke). |
|---|---|
| 20 | 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 MIJ Adjustable Cylinder MIJ20X30-20S Is Used
Staged Part Ejection
Use the adjustable 10-30 mm extend stroke to push lightweight components off a belt, dialing the exact ejection distance during product changeovers without changing hardware.
Carton Flap Folding
Leverage the 157 N push force to fold varying box flaps, tweaking the stop screw to accommodate different carton heights on the fly.
Sensor Actuation Testing
With the built-in -S magnet, deploy this cylinder to repeatedly trigger CMSG sensors at precise 20 mm intervals for automated quality checks.
Is the Airtac MIJ Adjustable Cylinder MIJ20X30-20S the Right Cylinder?
When sizing this actuator, the 20 mm bore provides a solid middle ground: step down to an MIJ16 if your load is under 100 N, or step up to an MIJ25 if you need closer to 245 N of push force at 0.5 MPa. The 20 mm adjustment window is highly useful for taking up mechanical tolerances or staging feeds during changeovers, letting one part number cover several slightly different stop positions. Remember that the stop screw only trims the extend end; it does not function as a mid-stroke lock or brake.
For mounting, you can utilize LB foot, FA flange, or TC trunnion brackets, but note that the SDB pivot block is not available on this adjustable-stroke variant. If your application requires the load to stay put after air loss, be aware the piston will drift; you must integrate an external rod lock or pilot-operated check valve for secure holding.
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 MIJ Adjustable Cylinder MIJ20X30-20S FAQ
This cylinder features a 1/8" port and delivers 157 N push / 131.9 N pull at 0.5 MPa, and 219.8 N push / 184.7 N pull at 0.7 MPa. The theoretical maximum force is 32 kgf at 1.0 MPa.
An external stop screw shortens the extend stroke by up to 20 mm on-site, setting the forward end position without affecting the full retract stroke. The -S suffix means it has a built-in piston magnet ready for 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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