Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX350-20
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX350-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 350mm 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
- Stroke350 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX350-20
The AirTAC SAIJ63X350-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 330-350 mm usable travel window. Delivering 1559 N of pull force at 0.5 MPa, it suits mid-weight tasks requiring precise end-position tuning without swapping hardware.
This variant uses a SUS420J2 stainless steel rod for superior corrosion resistance and pairs with PT tapered port threads. The extruded aluminum barrel includes dual sensor grooves, though this configuration omits the internal magnet, meaning CMSE or DMSE switches cannot be used without modification.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX350-20 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX350-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 350 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 SAIJ63AX350-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×350 | 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 SAIJ63AX350-20 Is Used
Product Changeover
Dial in the 330-350 mm travel window during format size changes on packaging lines without physically replacing the cylinder.
End-Stop Calibration
Fine-tune the retract position during machine commissioning to perfectly seat components, avoiding the need for external shims.
Variable Diverter Stroke
Adjust the actuation length on the fly for sorting different carton sizes while maintaining consistent push force.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX350-20 the Right Cylinder?
Select this 63 mm bore unit when a 50 mm bore falls short on power (offering 825 N pull at 0.5 MPa) but an 80 mm bore is excessive. The 20 mm rear adjuster allows exact end-stop tuning during product changeovers, functioning strictly as a travel stop rather than a load-holding lock; for dead-air positioning, consider the SAIL or BSAI series. As a dimensionally interchangeable ISO 15552 cylinder, it matches standard mounting footprints.
With a 350 mm stroke, the 20 mm rod diameter should be guided externally to prevent excessive side-loading. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB and CA styles. Operating speed ranges from 30-800 mm/s.
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 SAIJ63AX350-20 FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder provides 1559 N of pull force and 2182 N of push force at 0.7 MPa.
The rear adjusting screw acts as a mechanical stop, allowing you to shorten the effective stroke within a 330-350 mm window. It does not lock the load without live air pressure.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX350-20
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.