Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX230-50S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX230-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 230mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ63 mm
- Stroke230 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX230-50S
The AirTAC SAIJ63X230-50-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a 0.5 MPa push force of 1559 N and pull force of 1402 N, operating at speeds of 30-800 mm/s. The integrated -S magnet enables precise position detection using AirTAC CMSE reed or DMSE electronic solid-state sensors housed within the dual-side sensor grooves on the extruded aluminum barrel.
This specific SKU provides a nominal 230 mm stroke that can be fine-tuned backward by up to 50 mm, creating a usable travel window of 180-230 mm. It features a SUS420J2 stainless steel piston rod (material code A) for enhanced corrosion resistance and utilizes PT tapered port threads (G3/8). The rear adjuster acts purely as a mechanical stop to set the end position and relies on the standard variable air cushions for deceleration; it does not lock or hold the load without continuous live air pressure.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX230-50S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX230-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 230 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| 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, 36 mm |
| Max stroke | Up to 1500 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX230-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | 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 SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX230-50S Is Used
Variable End-Stop Positioning
Ideal for packaging lines where the retraction point must be dialed in precisely between 180 and 230 mm to accommodate different carton depths without changing hardware.
Machine Setup & Changeover
Speeds up product family changeovers by allowing operators to fine-tune the rear mechanical stop on the fly, reducing downtime compared to fixed-stroke SAI cylinders.
Sensor-Driven Assembly
The integrated -S magnet pairs with CMSE and DMSE switches to confirm exact end-of-travel positions in automated assembly presses requiring strict positional feedback.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX230-50S the Right Cylinder?
Select this 63 mm bore cylinder when an application requires variable end-stops for rapid product changeovers, stepping up from a 50 mm bore (which provides 982 N push force at 0.5 MPa) or down from an 80 mm bore (2513 N push force). The adjustable 180-230 mm travel window allows operators to dial in the exact retraction point at commissioning without physically swapping the cylinder or adding external stopper blocks. For load-holding requirements without live air pressure, this cylinder is insufficient; you must specify a SAIL pneumatic lock, a BSAI clamp-lock cylinder, or integrate an external pilot-operated check valve.
When replacing an ISO 15552 cylinder, match the 63 mm bore, 230 mm nominal stroke, 50 mm adjustment range, PT G3/8 port, and the -S magnet requirement. The SAIJ mounting interface supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 accessories, deliberately omitting FB, CA, CB, and CR brackets. Because the 230 mm stroke is moderately long, ensure adequate external guiding to prevent excessive side-loading on the M16x1.5 rod thread, as the rear adjuster only manages axial travel limits.
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 SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX230-50S FAQ
At a standard 0.5 MPa operating pressure, this 63 mm bore cylinder generates a push force of 1559 N and a pull force of 1402 N. At its maximum 1.0 MPa pressure, it can achieve a push force of up to 318 kgf.
The rear adjuster screw allows you to shorten the effective stroke by up to 50 mm from the 230 mm nominal length, providing a usable travel window of 180-230 mm. This stopper sets the end position but does not function as a lock to hold the load without live air pressure.
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