Airtac SAIJ50 Adjustable Cylinder SAIJ50BX230-50S
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50BX230-50S 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
- 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 SAIJ50 Adjustable Cylinder SAIJ50BX230-50S
The AirTAC SAIJ50X230-50-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 982N of push force at 0.5 MPa and features a 50mm adjustment range, creating a usable travel window between 180mm and 230mm. This allows precise end-position tuning at commissioning without swapping the cylinder or adding external stops.
Built with a SUS304 stainless steel rod (code B) and a PT tapered port, this extruded aluminum profile cylinder includes a magnet for position sensing. The rear screw acts purely as a travel stop and does not hold the load without live air. For load-holding requirements without pneumatic pressure, consider the SAIL or BSAI series instead.
Airtac SAIJ50 Adjustable Cylinder SAIJ50BX230-50S Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50BX230-50S |
|---|---|
| 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 SAIJ50BX230-50S
| 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 SAIJ50BX230-50S Is Used
Product Changeover
Dial in the 180-230mm travel window during format size changes on a packaging line without replacing hardware.
End-Stop Calibration
Fine-tune the retract position during machine commissioning using the rear adjuster instead of external stops.
Variable Positioning
Adjust the effective stroke on automated assembly equipment to accommodate varying part dimensions.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50BX230-50S the Right Cylinder?
Select this 50mm bore cylinder when an application requires 982N push force at 0.5 MPa but demands variable end-stops for product changeovers. If your setup needs less force, the 40mm bore offers 628N; if more is required, the 63mm bore provides 1559N. An adjustable SAIJ is preferred over a fixed SAI when you need to fine-tune the retract distance on the fly.
To match this ISO 15552 cylinder for a replacement, verify the 50mm bore, 230mm nominal stroke, 50mm adjuster, PT G1/4 port, and the -S magnet. Because the 230mm stroke exceeds 300mm is false here, a standard external guide is sufficient, though the 20mm rod diameter handles moderate side loads well. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ50BX230-50S FAQ
At 0.5 MPa, this 50mm bore cylinder provides 982N of push force and 825N of pull force. At 0.7 MPa, the push force increases to 1374N.
The rear adjuster screw allows you to trim the effective travel back by up to 50mm from the 230mm nominal stroke, providing a usable window of 180-230mm. It functions as a stop and does not lock the load without air pressure.
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