Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX1000-50S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX1000-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 1000mm 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
- Stroke1000 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX1000-50S
The AirTAC SAIJ63X1000-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 950-1000 mm. It delivers 1559 N of pull force at 0.5 MPa and up to 2805 N of push force at 0.9 MPa. The included -S magnet pairs directly with AirTAC CMSE reed and DMSE solid-state sensors, fitting neatly into the dual-side barrel grooves for precise end-position signaling.
This unit features a SUS420J2 stainless steel rod (option A) for superior corrosion resistance and uses PT tapered port threads. The rear adjustment screw acts purely as a travel stop to fine-tune the retract end position during commissioning; it does not lock or hold the load without continuous live air. For load-holding requirements, an external pilot-operated check valve or a related SAIL lock cylinder is required.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX1000-50S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX1000-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 1000 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 SAIJ63AX1000-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×1000 | 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 SAIJ63AX1000-50S Is Used
Machine Changeover
Dial in the exact 950-1000 mm retract position during product family changeovers without adding external physical stops.
End-Stop Tuning
Fine-tune the final end-of-stroke position at commissioning to dial out mechanical tolerances in a long-travel assembly.
Variable Pusher
Adjust the travel window on a long-stroke conveyor diverter to push different carton sizes accurately.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX1000-50S the Right Cylinder?
Choose this 63 mm bore when an application needs around 1559 N pull force at 0.5 MPa, stepping up from a 50 mm bore that yields 825 N. The 50 mm rear adjuster is selected over a fixed-stroke SAI when you need variable end-stops to accommodate product-size changeovers on a line without physically swapping the cylinder. To match this ISO 15552 replacement exactly, specify a 63 mm bore, 1000 mm stroke, 50 mm adjustment, PT port threads, Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting, and the -S magnet.
Because the 1000 mm stroke is long, the 20 mm rod and M16x1.5 thread will carry some side load, but an external guide rail is still recommended to prevent rod binding. If your machine requires true fail-safe load holding without live air pressure, look to the BSAI clamp-lock or SAIL air-released lock series instead of relying on the rear stopper.
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 SAIJ63AX1000-50S FAQ
At 0.5 MPa it provides 1559 N pull force and 1402 N push force. At the maximum operating pressure of 1.0 MPa, it delivers up to 318 kgf.
The rear adjuster screw lets you shorten the 1000 mm nominal stroke by up to 50 mm, giving a usable travel window of 950-1000 mm. It functions as a mechanical stop, not a lock.
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