Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X900-50S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X900-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 900mm 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
- Stroke900 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X900-50S
The AirTAC SAIJ63X900-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster and an integrated magnet for position sensing. It provides a 900 mm nominal stroke that can be fine-tuned backward by up to 50 mm, yielding an exact 850-900 mm usable travel window. This bore delivers 1559 N of pull force at 0.5 MPa and uses a G3/8 port with a 20 mm carbon steel rod.
Because the stroke extends to 900 mm, an external guide is recommended to prevent excessive side-loading on the rod thread. The extruded aluminum barrel includes sensor grooves on both sides, and the -S magnet pairs directly with AirTAC CMSE reed and DMSE electronic switches. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X900-50S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X900-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 900 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 SAIJ63X900-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×900 | 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 SAIJ63X900-50S Is Used
Machine Setup & Changeover
Dial in the exact 850-900 mm end-stop position during line changeovers without swapping out the entire actuator.
Variable End-Stop Positioning
Fine-tune the retract stroke by up to 50 mm to accommodate varying product sizes on the fly.
Long-Stroke Assembly Press
Leverage the 1559 N pull force across a 900 mm travel window for large-format component placement.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X900-50S the Right Cylinder?
Choose this adjustable model when you need to dial in the end-of-stroke position during commissioning or product changeover without adding external physical stops. If your application requires less force, stepping down to a 50 mm bore yields 825 N of pull at 0.5 MPa. For higher force, an 80 mm bore provides 2268 N.
When matching ISO 15552 replacements, specify 63 mm bore, 900 mm stroke, 50 mm adjustment, PT tapered ports, and the -S magnet. Note that the rear adjuster acts only as a travel stop and does not hold the load without live air pressure; for true load-holding, consider an external pilot-operated check valve or the SAIL lock series.
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 SAIJ63X900-50S FAQ
At 0.5 MPa, this 63 mm bore cylinder provides 1559 N of pull force and 1402 N of push force. At the maximum operating pressure of 1.0 MPa, it delivers up to 318 kgf.
The rear adjuster allows you to shorten the effective travel from the 900 mm nominal stroke by up to 50 mm, creating an 850-900 mm usable window for precise end-position tuning.
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