Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX270-50S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX270-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 270mm 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
- Stroke270 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX270-50S
The AirTAC SAIJ63X270-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering a 1559N pull force at 0.5 MPa. It features a SUS420J2 stainless steel rod and a PT tapered port thread. The built-in magnet enables position sensing with AirTAC CMSE reed and DMSE electronic switches.
This model provides a 220-270mm adjustable travel window, allowing you to trim the nominal 270mm stroke by up to 50mm during commissioning. The extruded aluminum barrel includes sensor grooves on both sides, and the adjustable end-stop acts purely as a travel limiter, not a load-holding lock.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX270-50S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX270-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 270 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 SAIJ63AX270-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×270 | 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 SAIJ63AX270-50S Is Used
Machine Changeover
Dial in the 220-270mm travel window during product size changes without physically swapping out the cylinder or adding external mechanical stops.
End-Position Tuning
Fine-tune the retract stroke end by up to 50mm at commissioning to perfectly dial in the 1559N pull force contact point.
Sensing Integration
Utilize the integrated magnet with AirTAC CMSE and DMSE sensors via the dual-side barrel grooves for precise end-of-stroke confirmation.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX270-50S the Right Cylinder?
Choose this 63mm bore when your application requires the 1559N pull force at 0.5 MPa, stepping up from a 50mm bore that provides 825N. The 50mm adjustment window is ideal for product changeovers, letting you fine-tune the retract end position without swapping the cylinder or adding external stops. For load-holding without live air pressure, consider the SAIL or BSAI series, as the rear adjuster here only sets the travel end.
When replacing an ISO 15552 cylinder, match the 63mm bore, 270mm nominal stroke, 50mm adjustment range, PT port thread, and the -S magnet option. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2. Because the 270mm stroke is relatively long, ensure external guidance to prevent excessive side-loading on the M16x1.5 rod thread.
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 SAIJ63AX270-50S FAQ
The nominal stroke is 270mm, but the rear adjuster allows you to shorten the effective travel by up to 50mm, creating a 220-270mm adjustable window for fine-tuning.
At 0.5 MPa operating pressure, it provides 1559N of pull force and 2182N of push force, operating at speeds between 30 and 800 mm/s.
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 SAIJ63AX270-50S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.