Airtac SAIJ50 Adjustable Cylinder SAIJ50AX230-40
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50AX230-40 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 SAIJ50AX230-40
The AirTAC SAIJ50X230-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the travel window from 190 to 230 mm. It delivers 982 N of push thrust at 0.5 MPa, scaling up to 1767 N at 0.9 MPa, making it well-suited for moderate-force positioning tasks. The extruded aluminum barrel includes sensor grooves on both sides for straightforward detection mounting.
This unit is built with a SUS420J2 stainless steel rod for enhanced corrosion resistance and uses PT tapered port threads. The rear adjuster acts purely as a mechanical stop to set the retract end position; it does not hold the load without live air pressure. For applications requiring true load-holding, an external rod lock or the AirTAC SAIL series is required.
Airtac SAIJ50 Adjustable Cylinder SAIJ50AX230-40 Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50AX230-40 |
|---|---|
| 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 SAIJ50AX230-40
| 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 SAIJ50AX230-40 Is Used
Product Changeover
Quickly adapt the retract distance for different package sizes on a packaging line without replacing the cylinder or bolting on external stops.
End-Position Tuning
Fine-tune the 190-230 mm travel window during machine commissioning to achieve exact mechanical positioning without physical shimming.
Adjustable Ejection
Vary the ejection stroke length on an assembly press to accommodate different part depths while maintaining a consistent base stroke.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50AX230-40 the Right Cylinder?
Choose this 50 mm bore when you need more force than the 40 mm version (628 N at 0.5 MPa) but want a smaller footprint than the 63 mm bore (1559 N). The 40 mm adjustment range is ideal for machine changeovers, letting you dial in the exact end-stop without swapping cylinders or adding external stops. Because the total stroke is 230 mm, which exceeds the 300 mm threshold, ensure your setup handles side loads—use an external guide to prevent rod binding.
When replacing an ISO 15552 cylinder, match these exact parameters: 50 mm bore, 230 mm nominal stroke, up to 40 mm adjustment, PT ports, and the SAIJ mounting subset (Basic, FA, LB, TC, FTC, TCM1, TCM2). Note that FB, CA, CB, and CR mounts are omitted from this adjustable series. This SKU does not include a magnet; if you need position sensing, select the -S version to use with AirTAC CMSE reed or DMSE electronic sensors.
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 SAIJ50AX230-40 FAQ
At 0.5 MPa, this 50 mm bore cylinder provides 982 N of push thrust and 825 N of pull thrust. If you increase the operating pressure to 0.9 MPa, the push force reaches 1767 N.
The rear adjuster screw lets you shorten the effective travel from the nominal 230 mm down to 190 mm. This stopper only sets the end position and deceleration; it does not lock the load without continuous air pressure.
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