Airtac MIJ Adjustable Cylinder MIJ20X50-30
The AirTAC Airtac MIJ Adjustable Cylinder MIJ20X50-30 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 MIJ20X50-30
Dial in your forward end position on site with the AirTAC MIJ20X50-30, a round-body stainless steel mini cylinder that lets an external stop nut shorten the extend stroke by up to 30 mm. You get a usable forward range of 20 to 50 mm without changing the part number, while the retract stroke remains full. Built with a riveted stainless barrel and an Ø8 mm rod, it handles mild washdown and corrosion exposure.
At 0.5 MPa this 20 mm bore generates 157 N of push force and 131.9 N of pull, yielding a safe working load around 94 N or a vertical lift of about 8 kg with a 2:1 margin. It conforms to the ISO 6432 mounting interface for easy bracket drops, uses a 1/8" port, and relies on fixed TPU bumper pads to decelerate the stroke ends. Because this SKU lacks the -S magnet, it cannot accept CMSG, DMSG or EMSG sensors.
Airtac MIJ Adjustable Cylinder MIJ20X50-30 Technical Specifications
| Model | Airtac MIJ Adjustable Cylinder MIJ20X50-30 |
|---|---|
| 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 MIJ20X50-30
| 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 MIJ20X50-30 Is Used
Diverter Gate Positioning
Trim the extend stroke by up to 30 mm to set the exact gate angle for sorting different package sizes on a 1/8" ported pneumatic line.
Tolerance Take-Up Stops
Absorb part variations in a machining fixture by fine-tuning the forward stop, applying the 157 N push force gently against the workpiece.
Staged Carton Feeds
Adjust the extend end on the fly to push varying carton depths into a sealing station without requiring a separate cylinder for each format.
Is the Airtac MIJ Adjustable Cylinder MIJ20X50-30 the Right Cylinder?
If your setup needs less push, the smaller MIJ16 bore delivers 100.5 N at 0.5 MPa; stepping up to the MIJ25 provides 245.3 N when you need heavier force. The 30 mm adjustment window on this model is ideal for taking up mechanical tolerances or staging feeds across changeover jobs without swapping hardware. Remember the stop screw only sets the forward end position—it is not a mid-stroke lock, and the piston will drift on air loss, so add an external rod lock or pilot check valve for held loads. You can use LB foot, FA flange or TC trunnion mounts, but SDB pivot blocks are 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 MIJ20X50-30 FAQ
This 20 mm bore cylinder uses a 1/8" air port and an M8x1.25 male rod thread. At 0.5 MPa it pushes with 157 N and pulls with 131.9 N. At 0.7 MPa the push is 219.8 N and the pull is 184.7 N. 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, giving a usable forward range of 20 to 50 mm, while retract stays full. The screw is not a mid-stroke lock or brake, so the piston will drift if air pressure is lost. This SKU also lacks a magnet, so it cannot take position 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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