Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX230-40S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX230-40S 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 SAIJ63AX230-40S
The AirTAC SAIJ63X230-40-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster that allows you to trim the nominal 230 mm travel back by up to 40 mm, creating a precise 190-230 mm usable end-position window. Delivering 1559 N of push thrust and 1402 N of pull thrust at 0.5 MPa, it is dimensionally interchangeable with ISO 15552 cylinders without relying on tie-rod construction. This specific SKU is configured with a SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance and includes a standard magnet (-S) for position sensing.
The extruded aluminum barrel integrates sensor grooves on both sides, directly supporting AirTAC CMSE reed switches and DMSE solid-state electronic sensors. You can fine-tune the retract end-position directly at commissioning or during product changeovers without swapping out the entire cylinder or adding bulky external stops. The rear adjuster functions purely as a mechanical travel stop to set the end-of-stroke deceleration point alongside the built-in air cushions, and it will not hold the load if air pressure is removed.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX230-40S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX230-40S |
|---|---|
| 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 SAIJ63AX230-40S
| 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 SAIJ63AX230-40S Is Used
Machine Changeover
Dial in the exact retract position within the 190-230 mm window during product size transitions without machining new stopper blocks.
End-Stop Calibration
Fine-tune the final end-of-stroke position during machine commissioning to compensate for mechanical wear or sensor drift.
Variable Positioning
Adjust the stroke length on the fly for batch-specific forming or pressing tasks that require slightly different travel distances.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX230-40S the Right Cylinder?
Choose this 63 mm bore adjustable model when your setup requires a variable end-stop within a 190-230 mm travel window, stepping up from a 50 mm bore that provides 982 N push force at 0.5 MPa, or down from an 80 mm bore yielding 2513 N. The integrated magnet works seamlessly with CMSE and DMSE sensors for exact positioning feedback, and the PT tapered port threads (G3/8) ensure a tight pneumatic connection. Because the nominal stroke is 230 mm, you should evaluate the load for potential side-loading and utilize an external guide if the rod is subjected to lateral forces.
This SAIJ configuration uses a reduced mounting subset—Basic, FA, LB, TC, FTC, TCM1, and TCM2—omitting the FB, CA, CB, and CR brackets found on some standard lines. If your application requires true load-holding without live air pressure, this cylinder is not a lock; you should instead look at the AirTAC SAIL (air-released lock) or BSAI (clamp-lock) series, or implement an external pilot-operated check valve.
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 SAIJ63AX230-40S FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder provides 1559 N of push force and 1402 N of pull force. It supports a standard operating speed range of 30-800 mm/s, controlled by the built-in variable air cushions at both ends.
The rear external adjuster screw allows you to shorten the effective stroke by up to 40 mm from the 230 mm nominal length, giving a usable travel window of 190 to 230 mm. It acts as a mechanical stop to set the end position and does not function as a lock or brake to hold the load without air pressure.
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