Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X900-100
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X900-100 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 SAIJ63X900-100
The AirTAC SAIJ63X900-100 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 1559N of push force at 0.5MPa and features a 900mm nominal stroke that can be fine-tuned down by up to 100mm, yielding an effective 800-900mm travel window. This built-in adjustability allows precise end-position calibration during commissioning without swapping hardware.
Fitted with a carbon steel rod and PT tapered port threads, it operates at speeds of 30-800mm/s. The extruded aluminum barrel includes sensor grooves on both sides for CMSE reed or DMSE electronic switches. Note that the rear adjuster functions strictly as a travel stop to set deceleration, not as a lock to hold loads without live air pressure.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X900-100 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X900-100 |
|---|---|
| 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 SAIJ63X900-100
| 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 SAIJ63X900-100 Is Used
Variable End-Stop Tuning
Dial in the exact retract position within the 800-900mm window during machine commissioning without adding external stopper blocks.
Product Changeover
Quickly adjust the stroke length on a packaging line to accommodate different box sizes while maintaining the same ISO 15552 footprint.
Long-Stroke Positioning
Utilize the 900mm travel for extended reach operations, fine-tuning the final end position by up to 100mm to perfect the process.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X900-100 the Right Cylinder?
Choose this 63mm bore when an application requires approximately 1559N push force at 0.5MPa, stepping up from a 50mm bore (982N) or down from an 80mm bore (2513N). An adjustable stroke is ideal for variable end-stops or product changeovers, providing setup flexibility that a fixed SAI cylinder cannot match. When replacing an ISO 15552 cylinder, match the 900mm stroke, 100mm adjuster, PT G3/8 port, and mounting choice (Basic, FA, LB, TC, FTC, TCM1, or TCM2).
Because the 900mm stroke is long and unsupported, an external guide is recommended to manage side loads. For applications needing true load-holding without continuous air pressure, a plain SAIJ is insufficient; consider the SAIL pneumatic lock or BSAI clamp-lock instead.
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 SAIJ63X900-100 FAQ
At 0.5MPa, it provides 1559N of push force and 1402N of pull force. At 0.7MPa, the push force increases to 2182N.
The rear adjuster acts as a stopper that shortens the effective travel from the 900mm nominal stroke, creating an adjustable 800-900mm window. It sets the travel end but does not lock the load without live air.
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