Airtac SAIJ50 Adjustable Cylinder SAIJ50AX230-40S
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50AX230-40S 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 SAIJ50AX230-40S
The AirTAC SAIJ50X230-40-S is a double-acting ISO 15552 profile cylinder with a single rod and a rear stroke adjuster. It provides a 190-230 mm usable travel window, letting you dial back the nominal 230 mm stroke by up to 40 mm during commissioning. Delivering 982 N of push thrust at 0.5 MPa, it handles mid-range pneumatic motion with precision.
This variant features an SUS420J2 stainless steel rod (code A) for improved corrosion resistance and includes a built-in magnet for position sensing. It works seamlessly with AirTAC CMSE reed and DMSE solid-state switches fitted into the dual-side sensor grooves on the extruded aluminum barrel. The rear adjuster acts strictly as a travel stop to set end positions and does not hold the load without live air pressure.
Airtac SAIJ50 Adjustable Cylinder SAIJ50AX230-40S Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50AX230-40S |
|---|---|
| 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 SAIJ50AX230-40S
| 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 SAIJ50AX230-40S Is Used
Variable End-Stop Tuning
Fine-tune the 190-230 mm travel window during machine commissioning to set exact retract positions without installing external mechanical stops.
Product Changeover
Rapidly adjust the end-of-stroke position on packaging lines when handling different product sizes, using the 40 mm rear adjustment screw.
Sensor-Driven Positioning
Leverage the built-in magnet with DMSE solid-state sensors to confirm intermediate positions within the adjustable travel range for automated clamping.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50AX230-40S 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 option (1559 N). The adjustable stroke is ideal for machine setup and product changeover, allowing variable end-stops without swapping the cylinder or adding external stops. For load-holding without continuous air pressure, consider the SAIL or BSAI series, as the SAIJ adjuster is not a lock.
This model uses PT tapered port threads (G1/4) and includes the -S magnet option. It supports the SAIJ mounting subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2. Because the 230 mm stroke exceeds 300 mm is not the case here, standard guiding is sufficient, but always account for side loads based on the 16 mm rod diameter. It is dimensionally interchangeable per ISO 15552.
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 SAIJ50AX230-40S FAQ
At 0.5 MPa operating pressure, this 50 mm bore cylinder provides 982 N of push thrust and 825 N of pull thrust. At the maximum 1.0 MPa pressure, it delivers up to 200 kgf.
The rear adjuster screw allows you to shorten the effective stroke by up to 40 mm from the 230 mm nominal length, creating a 190-230 mm usable travel window. It functions as a mechanical stop for end-position tuning and requires live air to hold the load.
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