Airtac MIJ Adjustable Cylinder MIJ20X250-50SG
The AirTAC Airtac MIJ Adjustable Cylinder MIJ20X250-50SG is a genuine double acting, adjustable stroke round-body mini air cylinder with a Ø20mm bore and 250mm 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
- Stroke250 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 MIJ20X250-50SG
Trimming the forward end by up to 50 mm via an external stop screw, this double-acting round-body mini cylinder lets you fine-tune the extend position on-site without swapping parts. The Ø20 mm bore delivers 157 N of push force at 0.5 MPa, yielding a safe working load of roughly 94 N or a 2:1 vertical lift capacity of about 8 kg. Retract travel remains at the full 250 mm.
Built with a stainless-steel barrel and rod for mild corrosion resistance, it drops into standard ISO 6432 mini-cylinder brackets and clevises. This SKU includes a piston magnet for position sensing and uses a 1/8" G port. Fixed TPU bumper pads decelerate the stroke ends.
Airtac MIJ Adjustable Cylinder MIJ20X250-50SG Technical Specifications
| Model | Airtac MIJ Adjustable Cylinder MIJ20X250-50SG |
|---|---|
| Series | MIJ ISO 6432 mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 250 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 MIJ20X250-50SG
| MIJ | ISO 6432 round-body mini cylinder (adjustable-stroke). |
|---|---|
| 20 | Bore size in mm. |
| ×250 | 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 MIJ20X250-50SG Is Used
Package Diverter Gate
Dial in the exact 200 to 250 mm extend position to deflect varying carton widths on a packaging line without changing hardware.
Multi-Stop Machining Fixture
Use the 50 mm external adjustment to compensate for raw part tolerances, setting the precise forward clamping point for each workpiece batch.
Staged Carton Pusher
Push boxes weighing up to 8 kg onto an accumulation roller line, tweaking the extend end to accommodate different pallet loading patterns.
Is the Airtac MIJ Adjustable Cylinder MIJ20X250-50SG the Right Cylinder?
For lighter jobs, the Ø16 bore provides 100.5 N push at 0.5 MPa; if you need more power, stepping up to the Ø25 bore yields 245.3 N. The 50 mm adjustment window here is ideal for taking up mechanical tolerances or covering multiple stop points in a changeover fixture using a single part number. The stop screw sets the forward end position but does not lock the rod mid-stroke. Because a standard cylinder drifts on air loss, add an external rod lock or pilot check valve to hold suspended loads. Mount via LB foot, FA flange, or TC trunnion (SDB is not offered on this adjustable variant), and pair the built-in magnet with CMSG, DMSG, or EMSG switches.
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 MIJ20X250-50SG 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. The air port is 1/8" with a G thread, and the male rod thread is M8x1.25.
An external stop screw shortens the extend stroke by up to 50 mm on-site, allowing you to set the exact forward end position while retract remains full. The -S suffix means it has a built-in piston magnet for CMSG, DMSG, or EMSG sensors. Fixed TPU bumpers decelerate the stroke ends.
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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