Airtac MIJ Adjustable Cylinder MIJ20X80-50
The AirTAC Airtac MIJ Adjustable Cylinder MIJ20X80-50 is a genuine double acting, adjustable stroke 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
- 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 MIJ20X80-50
Dial in your forward end position on the factory floor with the AirTAC MIJ20X80-50, a round-body stainless steel mini cylinder that shortens its 80 mm extend stroke by up to 50 mm via an external stop screw. This double-acting actuator delivers a push force of 157 N and a pull force of 131.9 N at 0.5 MPa, yielding a safe working load of roughly 94 N or a vertical lift capacity of about 8 kg with a 2:1 margin. The retract distance remains full, while the forward stop lets one part number cover several intermediate stops without swapping hardware.
Built with a stainless-steel barrel and piston rod, the riveted construction resists mild corrosion and washdown environments. It features a 1/8" air port, an Ø8 mm rod with an M8x1.25 male thread, and conforms to the ISO 6432 mounting interface for standard mini brackets. Fixed TPU bumper pads decelerate the stroke end, and because this specific SKU lacks the -S magnet option, it cannot accept CMSG, DMSG, or EMSG sensors.
Airtac MIJ Adjustable Cylinder MIJ20X80-50 Technical Specifications
| Model | Airtac MIJ Adjustable Cylinder MIJ20X80-50 |
|---|---|
| Series | MIJ ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 80 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 MIJ20X80-50
| MIJ | ISO 6432 round-body mini cylinder (adjustable-stroke). |
|---|---|
| 20 | Bore size in mm. |
| ×80 | Stroke length in mm. |
| -50 | 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 MIJ20X80-50 Is Used
Staged Package Diverting
Trim the extend stroke by up to 50 mm to push varying box sizes onto a secondary lane without repositioning the cylinder mount, utilizing the 157 N push force for reliable lateral movement.
Tolerance Take-Up Clamping
Absorb part-length variances in a machining fixture by fine-tuning the forward end position on-site, applying a safe working load of 94 N to hold components securely.
Adjustable Stop Feeding
Feed different widths of raw material into an assembly cell by dialing the stop screw between 30 and 80 mm, letting one actuator handle multiple changeover jobs.
Is the Airtac MIJ Adjustable Cylinder MIJ20X80-50 the Right Cylinder?
When sizing this 20 mm bore, stepping down to the MIJ16 limits you to 100.5 N of push at 0.5 MPa, whereas stepping up to the MIJ25 yields 245.3 N. The integrated adjuster is invaluable for absorbing mechanical tolerances or setting up staged feeds, allowing you to trim the extend stroke anywhere from 30 to 80 mm. Keep in mind the stop screw only sets the end position; it is not a mid-stroke lock, and the piston will drift on air loss unless you add an external rod lock or pilot check valve.
Mounting choices include LB foot, FA flange, and TC trunnion styles, along with CA, U, R, or CM back covers, but the SDB pivot block is not available on this adjustable variant. Operating at speeds of 30-800 mm/s within a 0.15-1.0 MPa pressure range, you must select the -S magnet version if your application requires position sensing.
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 MIJ20X80-50 FAQ
This 20 mm bore cylinder features a 1/8" air port and generates 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 50 mm on-site, while the retract stroke remains full. The screw is not a mid-stroke lock, so the piston drifts on air loss. This SKU has no magnet and cannot take CMSG/DMSG/EMSG sensors; you need the -S variant for sensing.
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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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