Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX400-10S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX400-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 400mm 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
- Stroke400 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX400-10S
The AirTAC SAIJ63X400-10-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 390-400mm usable travel window, letting you fine-tune the retract end-position by up to 10mm without adding external stops. In the 63mm bore class, it delivers 2182N of push force at 0.7MPa.
This unit includes a SUS420J2 stainless steel rod for superior corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel features sensor grooves on both sides, and the included magnet supports CMSE reed and DMSE electronic solid-state switches for precise position detection.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX400-10S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX400-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 400 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 SAIJ63AX400-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×400 | 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 SAIJ63AX400-10S Is Used
Machine Setup Fine-Tuning
Dial in the exact 390-400mm end-stop during initial commissioning to compensate for mechanical tolerances without machining new spacer blocks.
Product Changeover Adjustment
Quickly shift the retract position by a few millimeters on a packaging line when handling slightly different carton sizes.
Sensor Calibration
Use the 10mm adjustment window to perfectly align the stroke end with the DMSE solid-state sensor trip point for reliable automated cycles.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX400-10S the Right Cylinder?
Choose this 63mm bore cylinder when your application requires 2182N of thrust at 0.7MPa but needs exact end-position tuning at commissioning. If you need less force, the 50mm bore offers 1374N; for heavier loads, the 80mm bore provides 3518N. The adjustable rear stopper is a travel limit, not a lock, so it will not hold the load without live air. For load-holding without pressure, consider the SAIL or BSAI series.
Because the 400mm stroke is substantial, the 20mm rod and M16x1.5 thread will still experience some deflection under high side loads. An external guide is recommended to prevent premature seal wear. As a direct ISO 15552 interchangeable replacement, verify your footprint requires the PT port, 10mm adjustment range, and the SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, 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 SAIJ63AX400-10S FAQ
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 400mm nominal stroke by up to 10mm. This creates a 390-400mm usable travel window. It only sets the end position; it does not lock or hold the load without continuous air pressure.
At a 0.7MPa operating pressure, the SAIJ63X400-10-S generates 2182N of push force and 1402N of pull force. The maximum thrust is 318 kgf at 1.0MPa.
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