Airtac SAIJ50 Adjustable Cylinder SAIJ50AX230-20
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50AX230-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 230mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ50 mm
- Stroke230 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 30 mm
About the Airtac SAIJ50 Adjustable Cylinder SAIJ50AX230-20
The AirTAC SAIJ50X230-20 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 210 to 230 mm, allowing you to dial in the exact retract position during commissioning without adding external stops. In the 50 mm bore class, it generates 982 N of push force and 825 N of pull force at 0.5 MPa.
This variant uses a SUS420J2 stainless steel piston rod (material code A) for improved corrosion resistance compared to standard carbon steel. The extruded aluminum barrel includes sensor grooves on both sides, and air cushioning at both ends helps decelerate the moving load at the travel extremes.
Airtac SAIJ50 Adjustable Cylinder SAIJ50AX230-20 Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50AX230-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 230 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M16×1.5 |
| 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 | Adjustable, 30 mm |
| Max stroke | Up to 1200 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ50 Adjustable Cylinder SAIJ50AX230-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×230 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAIJ50 Adjustable Cylinder SAIJ50AX230-20 Is Used
Machine Commissioning
Fine-tune the retract end-position within the 210-230 mm window during initial setup without swapping out the entire cylinder.
Product Changeover
Quickly adjust the stroke stop on packaging lines when switching to a different product size that requires a slightly shorter travel.
End-Stop Calibration
Dial in the exact retract distance to meet tight positional tolerances on automated assembly fixtures.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50AX230-20 the Right Cylinder?
Choose this 50 mm bore unit when your application requires 982 N of push force at 0.5 MPa. If your load demands less force, stepping down to a 40 mm bore yields 628 N of push force, while moving up to a 63 mm bore provides 1559 N. The adjustable stroke is ideal for machine setups requiring variable end-stops or fine-tuning during product changeover, rather than relying on a fixed-stroke SAI cylinder.
For ISO 15552 replacement matching, verify the 50 mm bore, 230 mm stroke, 20 mm adjustment range, PT tapered port thread, and standard mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because the total stroke is 230 mm, ensure external guidance is used if the load imposes significant side loads on the 20 mm rod diameter. The rear adjuster acts only as a travel stop, not a lock; for load-holding without live air pressure, consider an SAIL or BSAI cylinder.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
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 Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAIJ50 Adjustable Cylinder SAIJ50AX230-20 FAQ
At 0.5 MPa operating pressure, this 50 mm bore cylinder provides 982 N of push force and 825 N of pull force. At the maximum operating pressure of 1.0 MPa, it can deliver up to 200 kgf.
The rear adjusting screw allows you to shorten the effective stroke by up to 20 mm, providing a usable travel window of 210 to 230 mm. This screw functions as a mechanical stop to set the end position and does not lock or hold the load without continuous air pressure.
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