Airtac MIJ Adjustable Cylinder MIJ20X50-30S
The AirTAC Airtac MIJ Adjustable Cylinder MIJ20X50-30S is a genuine double acting, adjustable stroke round-body mini air cylinder with a Ø20mm bore and 50mm 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
- Stroke50 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 MIJ20X50-30S
Dial in a precise forward end position on-site with the AirTAC MIJ20X50-30S, a round-body stainless steel mini cylinder built for double-acting operation. An external stop screw lets you shorten the extend stroke by up to 30 mm, providing a usable forward range of 20 to 50 mm without swapping parts. The retract stroke remains full length. Delivering 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 stainless barrel and piston rod supply mild corrosion resistance for washdown environments, while the Ø20 mm body conforms to the ISO 6432 mounting interface for standard mini brackets. This SKU includes the -S piston magnet, enabling CMSG, DMSG, or EMSG position sensing. Air connects via a 1/8" port, and fixed TPU bumper pads decelerate the stroke ends. The stop screw dictates the end position; it is not a mid-stroke lock, so fit an external rod lock or pilot check valve if you need to hold a load on air loss.
Airtac MIJ Adjustable Cylinder MIJ20X50-30S Technical Specifications
| Model | Airtac MIJ Adjustable Cylinder MIJ20X50-30S |
|---|---|
| Series | MIJ ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 50 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 MIJ20X50-30S
| MIJ | ISO 6432 round-body mini cylinder (adjustable-stroke). |
|---|---|
| 20 | Bore size in mm. |
| ×50 | 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 MIJ Adjustable Cylinder MIJ20X50-30S Is Used
Sorter Diverter Tuning
Trim the 50 mm extend stroke by up to 30 mm to perfectly align a package diverter arm without machining new spacers, using the 157 N push force to redirect light goods.
Assembly Pin Seating
Set the exact forward stop to press a pin to a specific depth, leveraging the 8 kg vertical lift capacity while relying on the -S magnet to confirm pin insertion.
Carton Flap Folding
Adjust the extend end position on the fly to fold varying carton sizes accurately, letting the fixed TPU bumper absorb the impact at the end of travel.
Is the Airtac MIJ Adjustable Cylinder MIJ20X50-30S the Right Cylinder?
When sizing this 20 mm bore, verify your force needs against the 157 N push and 131.9 N pull figures at 0.5 MPa. If your application requires less push, dropping down to a 16 mm bore yields 100.5 N, whereas stepping up to a 25 mm bore provides 245.3 N. The 30 mm adjustable extend window is ideal for taking up mechanical tolerances during setup or staging feeds across changeover jobs. Mount this cylinder using LB foot, FA flange, or TC trunnion brackets; note that the SDB pivot block is not offered on this adjustable variant. Because the -S magnet is present, you can directly mount reed or electronic 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 MIJ Adjustable Cylinder MIJ20X50-30S FAQ
This cylinder uses a 1/8" air port. At 0.5 MPa it provides 157 N push and 131.9 N pull force. At 0.7 MPa it delivers 219.8 N push and 184.7 N pull. The theoretical maximum force at 1.0 MPa is 32 kgf.
An external stop screw shortens the extend stroke by up to 30 mm, letting you set a precise forward end position between 20 and 50 mm. The retract stroke remains full length. The screw only sets the end position and does not lock the piston mid-stroke.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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