Airtac MIJ Adjustable Cylinder MIJ20X50-50S
The AirTAC Airtac MIJ Adjustable Cylinder MIJ20X50-50S 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 MIJ20X50-50S
Dial in a precise forward end position on-site with the AirTAC MIJ20X50-50S, a round-body stainless steel mini cylinder that lets an external stop screw shorten the extend stroke by up to 50 mm. Because the retract travel remains full, you get flexible forward positioning without swapping hardware. The stainless barrel and rod shrug off mild washdowns, and the built-in magnet (-S) supports CMSG, DMSG, or EMSG switches for end-of-stroke sensing.
This double-acting ISO 6432 unit delivers 157 N of push force and 131.9 N of pull force at 0.5 MPa, yielding a safe working load around 94 N. That translates to a vertical lift capacity of roughly 8 kg with a 2:1 safety margin. It uses a 1/8" port, runs at 30-800 mm/s, and relies on fixed TPU bumper pads to decelerate the stroke end.
Airtac MIJ Adjustable Cylinder MIJ20X50-50S Technical Specifications
| Model | Airtac MIJ Adjustable Cylinder MIJ20X50-50S |
|---|---|
| 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 MIJ20X50-50S
| MIJ | ISO 6432 round-body mini cylinder (adjustable-stroke). |
|---|---|
| 20 | Bore size in mm. |
| ×50 | 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 MIJ20X50-50S Is Used
Changeover Diverter Gates
Fine-tune the extend stop up to 50 mm to reposition a diverter flap for different carton sizes on a packaging line without changing the cylinder.
Tolerance Take-up Stops
Absorb part-length variations in machining fixtures by trimming the forward end position against the workpiece using the external screw.
Staged Package Pushers
Push 8 kg cartons into a labeling station with 157 N of force, adjusting the extend distance on the fly to accommodate varying box depths.
Is the Airtac MIJ Adjustable Cylinder MIJ20X50-50S the Right Cylinder?
If your application needs less push, the MIJ16 bore provides 100.5 N at 0.5 MPa, whereas stepping up to the MIJ25 gives you 245.3 N for heavier fixtures. The 50 mm adjustment window on this model is ideal for taking up mechanical tolerances or staging feeds across changeover jobs. Just remember the stop screw sets the forward end position—it is not a mid-stroke lock, and the piston will drift if air pressure drops. Use an external pilot check valve if you need to hold a suspended load.
You can mount this cylinder using LB foot brackets, FA flanges, or TC trunnions, but the SDB pivot block is not offered on this adjustable variant. Position sensing is ready out of the box thanks to the -S magnet option.
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 MIJ20X50-50S FAQ
At 0.5 MPa this double-acting cylinder 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, and the air port size is 1/8".
The external stop screw shortens the extend stroke by up to 50 mm on-site, but the retract stroke remains full. The -S suffix indicates a built-in piston magnet for use with CMSG, DMSG, or EMSG sensors. The stainless steel build resists mild corrosion.
Authorized Export Seller
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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