Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X90-40
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X90-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 90mm 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
- Stroke90 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X90-40
The AirTAC SAIJ63X90-40 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 1559 N of push force at 0.5 MPa and features a G3/8 port. By turning the external stopper screw, you can fine-tune the effective travel down from the 90 mm nominal stroke, creating a precise 50-90 mm usable window without swapping hardware.
This 40 mm adjustment range is ideal for product-size changeovers on a packaging line. The extruded aluminum barrel includes sensor grooves on both sides, and the standard carbon steel rod uses an M16x1.5 thread to handle side loads effectively. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X90-40 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X90-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 90 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 SAIJ63X90-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×90 | 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 SAIJ63X90-40 Is Used
Machine Changeover
Quickly shift the end-stop by up to 40 mm when running a new product size, saving setup time without changing the cylinder.
End-Position Tuning
Dial in the exact 50-90 mm travel distance during commissioning to perfect the mechanical stroke for delicate assembly tasks.
Variable End Stops
Adjust the retract position on the fly to accommodate different package lengths on a packaging line conveyor.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X90-40 the Right Cylinder?
Choose this 63 mm bore when you need 1559 N push force at 0.5 MPa but want to dial in the end position during commissioning. If your application requires less force, stepping down to a 50 mm bore yields 982 N. If you need fixed travel without a rear stopper, the standard SAI cylinder is a simpler choice. Remember that the SAIJ rear adjuster acts only as a travel stop, not a lock; the cylinder will not hold a load without live air pressure.
For an ISO 15552 replacement match, specify a 63 mm bore, 90 mm stroke, 40 mm adjustment, PT tapered port threads, and no magnet. Because the nominal stroke is under 300 mm, side-load stress on the M16x1.5 carbon steel rod is minimal, though external guides are always recommended for heavy lateral loads.
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 SAIJ63X90-40 FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder provides 1559 N of push force and 1402 N of pull force. It can reach up to 2805 N push force at 0.9 MPa.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 90 mm nominal stroke by up to 40 mm. This creates a usable travel window of 50-90 mm for fine-tuning end positions without replacing the cylinder.
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