Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX290-50S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX290-50S 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 SAIJ63AX290-50S
The AirTAC SAIJ63X290-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling a usable travel window of 240-290 mm. Delivering 2182 N of push force at 0.7 MPa, it integrates a magnetic piston for position sensing alongside a SUS420J2 stainless steel rod for superior corrosion resistance. Threaded PT ports are standard on this unit.
By turning the rear stopper screw, you can fine-tune the retract end-position at commissioning without adding external stops. The extruded aluminum barrel features sensor grooves on both sides, accepting AirTAC CMSE reed and DMSE electronic switches. Remember that the adjuster acts only as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX290-50S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX290-50S |
|---|---|
| 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 SAIJ63AX290-50S
| 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 SAIJ63AX290-50S Is Used
Machine Changeover
Quickly dial in the retract end-stop from 240 to 290 mm when switching product sizes on a packaging line, avoiding mechanical cylinder swaps.
End-Position Tuning
Fine-tune the final retract position during commissioning to perfect a pressing or clamping action without adding external hard stops.
Corrosive Assembly Lines
Leverage the SUS420J2 stainless steel rod and 1559 N pull force at 0.5 MPa for reliable actuation in washdown or mildly corrosive industrial environments.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX290-50S the Right Cylinder?
Choose this 63 mm bore when an application requires 2182 N of thrust at 0.7 MPa but might need slight end-position tweaks for product changeovers. If your process demands less force, stepping down to a 50 mm bore yields 1374 N at 0.7 MPa. Conversely, an 80 mm bore provides 3518 N for heavier loads. The adjustable mechanism is ideal for dialing in precise retract distances without swapping the cylinder.
Because the 290 mm stroke exceeds 300 mm is not the case here, but for any extended travel, external guides are recommended to prevent rod sag and premature wear. If you need true load-holding without continuous air pressure, the SAIJ adjuster will not suffice; instead, consider the SAIL pneumatic lock or BSAI clamp-lock series. This cylinder uses PT tapered ports and the SAIJ mounting subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ63AX290-50S FAQ
The rear stopper screw allows you to shorten the effective stroke by up to 50 mm. This creates a usable travel window of 240-290 mm, letting you set the exact retract end-position at commissioning without replacing the cylinder.
At an operating pressure of 0.7 MPa, the SAIJ63X290-50-S provides 2182 N of push force and 1402 N of pull force. The maximum thrust is 318 kgf at 1.0 MPa.
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 SAIJ63AX290-50S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.