Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX115-30
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX115-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 115mm 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
- Stroke115 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX115-30
The AirTAC SAIJ63X115-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel within an 85-115 mm window. It delivers a robust 1559 N push force at 0.5 MPa, making it well-suited for mid-range actuation tasks. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
This specific SKU is configured with an SUS420J2 stainless steel piston rod (material code A) for enhanced corrosion resistance. It uses PT tapered port threads (G3/8) and operates without a magnet. The rear adjustment screw functions strictly as a travel stop for end-position tuning, not a load-holding lock, meaning live air pressure is required to maintain position.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX115-30 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX115-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 115 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 SAIJ63AX115-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×115 | 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 SAIJ63AX115-30 Is Used
Machine Changeovers
Dial in the 85-115 mm travel window during product size transitions on a packaging line without swapping out the entire actuator.
End-Stop Calibration
Fine-tune the retract end-position precisely at commissioning using the rear adjuster, ensuring perfect alignment of tooling.
Variable End Positioning
Accommodate slight variations in part dimensions on an assembly conveyor by adjusting the stroke rather than reprogramming controls.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX115-30 the Right Cylinder?
Choose this 63 mm bore cylinder when your application requires 1559 N of push force at 0.5 MPa and on-the-fly end-position tuning without adding external stops. If your force requirements are lower, stepping down to a 50 mm bore yields 982 N; stepping up to an 80 mm bore provides 2513 N. The adjustable 85-115 mm travel window is ideal for machine changeovers where product sizes vary slightly.
When replacing an ISO 15552 cylinder, match the 63 mm bore, 115 mm nominal stroke, 30 mm adjustment range, PT G3/8 port, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2, omitting FB/CA/CB/CR). Because the stroke is under 300 mm, side-load stress is minimal, though the 20 mm rod thread handles standard loads effectively. For applications needing true position holding without live air, consider the SAIL or BSAI series instead.
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 SAIJ63AX115-30 FAQ
At a 0.5 MPa operating pressure, this 63 mm bore cylinder provides a push force of 1559 N and a pull force of 1402 N. It can reach up to 2805 N push force at 0.9 MPa.
The rear adjuster allows you to shorten the nominal 115 mm stroke by up to 30 mm, creating a usable travel window of 85-115 mm. The adjuster acts as a mechanical stop for end-position tuning and does not lock or hold the load without continuous air pressure.
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