Airtac MIJ Adjustable Cylinder MIJ20X80-30
The AirTAC Airtac MIJ Adjustable Cylinder MIJ20X80-30 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 MIJ20X80-30
Trimming the forward end position by up to 30 mm via an external stop screw, this double-acting round-body mini cylinder lets you fine-tune the extend stroke on-site without swapping parts. The stainless-steel barrel and Ø8 mm piston rod supply mild washdown resistance, while the 1/8" port feeds a bore that delivers 157 N of push force at 0.5 MPa. Retract remains a full 80 mm stroke, and fixed TPU bumper pads absorb the end-of-travel impact.
Built to the ISO 6432 mounting interface, the Ø20 mm body drops directly into standard mini-cylinder brackets and clevises. In practice, the 0.5 MPa push force translates to a safe working load of roughly 94 N, giving you a vertical lift capacity of about 8 kg with a 2:1 safety margin. Because this specific SKU lacks the -S magnet option, it cannot accept CMSG, DMSG or EMSG position sensors.
Airtac MIJ Adjustable Cylinder MIJ20X80-30 Technical Specifications
| Model | Airtac MIJ Adjustable Cylinder MIJ20X80-30 |
|---|---|
| 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 MIJ20X80-30
| MIJ | ISO 6432 round-body mini cylinder (adjustable-stroke). |
|---|---|
| 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 MIJ Adjustable Cylinder MIJ20X80-30 Is Used
Changeover Diverter
Dial in the 30 mm extend stop to shift a lightweight conveyor guide flap, accommodating different product widths without replacing the cylinder.
Carton Flap Folder
Leverage the 157 N push force to fold packing flaps, using the adjustable screw to fine-tune the fold depth for various box heights.
Staged Parts Ejector
Push small components out of a machining fixture with a safe 94 N working load, adjusting the forward reach to clear different fixture geometries.
Is the Airtac MIJ Adjustable Cylinder MIJ20X80-30 the Right Cylinder?
When sizing this actuator, compare its 157 N push force at 0.5 MPa against the adjacent bores: the smaller Ø16 MIJ yields 100.5 N, whereas the larger Ø25 MIJ provides 245.3 N. The 30 mm adjustment window is ideal for taking up mechanical tolerances during setup or staging feeds across changeover jobs, allowing one part number to cover several intermediate stops. Note that the stop screw sets the forward end position only; it is not a mid-stroke lock. If the application requires the load to be held upon air loss, the piston will drift, so you must fit an external rod lock or pilot-operated check valve. For mounting, select LB foot, FA flange or TC trunnion brackets, as the SDB pivot block is not offered on this adjustable-stroke variant.
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 MIJ20X80-30 FAQ
This Ø20 mm cylinder features a 1/8" air port and an M8x1.25 male rod thread. At 0.5 MPa it provides 157 N push and 131.9 N pull; at 0.7 MPa it provides 219.8 N push and 184.7 N pull. The theoretical maximum force is 32 kgf at 1.0 MPa.
An external stop screw shortens the extend stroke by up to 30 mm on-site, letting you set a precise forward end position from 50 to 80 mm without changing the cylinder. The retract stroke remains fixed at the full 80 mm. Because this SKU lacks a magnet, it cannot support CMSG, DMSG or EMSG sensors.
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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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