Airtac MIJ Adjustable Cylinder MIJ20X300-20S
The AirTAC Airtac MIJ Adjustable Cylinder MIJ20X300-20S is a genuine double acting, adjustable stroke round-body mini air cylinder with a Ø20mm bore and 300mm 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
- Stroke300 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 MIJ20X300-20S
Dial in a precise forward end position on the fly with the AirTAC MIJ20X300-20S, 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 20 mm directly on the machine, covering a usable 280 to 300 mm forward travel without swapping parts. Retract remains at the full 300 mm. The stainless barrel and rod supply mild corrosion resistance for washdown environments, and the built-in magnet (-S) supports CMSG, DMSG, and EMSG position switches.
Delivering 157 N of push force and 131.9 N of pull at 0.5 MPa, this ISO 6432 mounting-interface bore handles meaningful work. The computed safe working load sits around 94 N (60% of the 0.5 MPa push figure), translating to a vertical lift of roughly 8 kg with a 2:1 safety margin. It uses a 1/8" port, an Ø8 mm rod with an M8x1.25 male thread, and fixed TPU bumper pads to decelerate the stroke end.
Airtac MIJ Adjustable Cylinder MIJ20X300-20S Technical Specifications
| Model | Airtac MIJ Adjustable Cylinder MIJ20X300-20S |
|---|---|
| Series | MIJ ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 300 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 MIJ20X300-20S
| MIJ | ISO 6432 round-body mini cylinder (adjustable-stroke). |
|---|---|
| 20 | Bore size in mm. |
| ×300 | 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 MIJ20X300-20S Is Used
Staged Part Ejection
Use the 20 mm extend adjustment to alter the push-off distance for different product lengths on a single conveyor line, applying the 157 N @0.5 MPa force to clear parts efficiently.
Tolerance Take-Up Jig
Fine-tune the forward clamping position on machining fixtures to compensate for material thickness variations, safely exerting about 94 N of working force without over-stressing components.
Adjustable Flap Folder
Set the exact folding stop for various carton depths on a packaging line, relying on the stainless construction to handle light washdown between batch changeovers.
Is the Airtac MIJ Adjustable Cylinder MIJ20X300-20S the Right Cylinder?
When sizing this 20 mm bore, stepping down to an MIJ16 yields 100.5 N push @0.5 MPa, while stepping up to an MIJ25 provides 245.3 N—giving you clear boundaries if your force requirements shift. The 20 mm adjustment window is highly useful for taking up mechanical tolerances or staggering part ejection across multiple stations during setup. Because the stop screw only trims the extend end position, it acts as an end stop, not a mid-stroke lock; the piston will drift on air loss, so fit an external rod lock or pilot check valve if you need to hold a suspended load. Mount via standard ISO 6432 brackets like LB, FA, or TC (SDB is not offered on this adjustable 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 MIJ20X300-20S FAQ
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. This bore uses a 1/8" air port and an Ø8 mm rod with an M8x1.25 male thread.
The external stop screw shortens the extend stroke by up to 20 mm (usable extend 280-300 mm), while retract stays at the full 300 mm. The screw sets the forward end position but is not a mid-stroke lock. The -S suffix means it has a built-in piston magnet for CMSG, DMSG, or EMSG sensors.
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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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