Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX290-30
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX290-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 290mm 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
- Stroke290 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX290-30
The AirTAC SAIJ63X290-30 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 260-290 mm usable travel window, allowing you to dial back the nominal 290 mm stroke by up to 30 mm. This fine-tuning capability is essential for precise end-position calibration during commissioning or product changeovers, eliminating the need to swap out the entire cylinder or add external stops. With a 63 mm bore, it delivers 1559 N of push force and 1402 N of pull force at 0.5 MPa.
This variant is configured with an SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance and features PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. Remember that the rear adjuster functions strictly as a travel stop and works alongside the variable air cushions to decelerate the piston; it does not hold the load without live air pressure.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX290-30 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX290-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 290 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 SAIJ63AX290-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×290 | 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 SAIJ63AX290-30 Is Used
Machine Changeover
Quickly adapt the end-stop position by up to 30 mm when switching product sizes on a packaging line, ensuring precise mechanical positioning without hardware swaps.
End-Position Tuning
Fine-tune the retract stroke during initial commissioning to dial in exact clamping or pressing distances, absorbing mechanical tolerances in the fixture.
Variable Diverter Travel
Adjust the actuation length of a sorting diverter arm on the fly, allowing operators to modify the travel window between 260 and 290 mm for different package dimensions.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX290-30 the Right Cylinder?
Choose this 63 mm bore adjustable-stroke cylinder when your application requires 1559 N push force at 0.5 MPa and a 260-290 mm travel window. If your setup demands less force, stepping down to a 50 mm bore yields 982 N push force, while stepping up to an 80 mm bore provides 2513 N. An adjustable stroke is preferred over a fixed SAI cylinder when you need variable end-stops for machine changeovers or precise mechanical tuning at commissioning. To match this ISO 15552 replacement exactly, specify the 63 mm bore, 290 mm stroke, 30 mm adjustment, PT G3/8 port, and no magnet.
Because the 290 mm stroke is substantial, the 20 mm diameter rod and M16x1.25 rod thread will experience leverage forces under side loading. For strokes of 300 mm or more, an external guide mechanism is strongly recommended to prevent premature seal wear and rod bending.
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 SAIJ63AX290-30 FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder provides 1559 N of push force and 1402 N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 318 kgf.
The rear adjuster acts as an external stopper that mechanically limits the piston travel. For this SAIJ63X290-30 model, it allows you to shorten the effective stroke from 290 mm down to as little as 260 mm without changing the cylinder's ISO 15552 mounting footprint.
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