Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X80-75
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X80-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 80mm 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
- Stroke80 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X80-75
The AirTAC SAIJ63X80-75 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. With a nominal 80 mm stroke and a 75 mm adjustment range, it provides a highly flexible usable travel window of 5 to 80 mm. This wide tuning band allows you to dial in exact end positions during commissioning without physically swapping the cylinder or adding external stops. It delivers a robust 1559 N push force at 0.5 MPa, making it well-suited for moderate-to-heavy actuation tasks.
Built with a carbon steel piston rod and M16x1.5 rod threading, the 20 mm rod diameter handles standard side loads effectively while allowing secure mechanical attachment. The extruded aluminum barrel incorporates sensor grooves on both sides for direct mounting of CMSE reed or DMSE electronic switches if a magnet is specified later. The rear adjuster acts purely as a mechanical travel stop combined with variable air cushions at both ends to decelerate the piston; it does not hold the load without live air pressure.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X80-75 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X80-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 80 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 SAIJ63X80-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×80 | 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 SAIJ63X80-75 Is Used
Machine Changeover
Quickly reconfigure the end-of-stroke position from 5 mm up to 80 mm when switching a packaging line between different carton sizes or product formats.
Assembly Calibration
Fine-tune the pressing distance during equipment setup to perfect a seal or bearing fit without machining custom spacer blocks.
Variable Diverter
Adjust the actuation reach on a sorting gate to handle varying package profiles on the fly, ensuring precise routing without changing hardware.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X80-75 the Right Cylinder?
Choose this 63 mm bore adjustable cylinder when your application requires variable end-stops or frequent product changeovers that demand different stroke lengths. If your process requires less force, stepping down to a 50 mm bore yields 982 N push at 0.5 MPa, whereas moving up to an 80 mm bore provides 2513 N for heavier loads. The SAIJ63X80-75 is dimensionally interchangeable with ISO 15552 cylinders, featuring a PT tapered G3/8 port, and supports a mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2. For any load-holding requirements without continuous air pressure, select a SAIL pneumatic lock or BSAI clamp-lock cylinder instead, as this rear adjuster is not a brake.
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 SAIJ63X80-75 FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder provides 1559 N of push force and 1402 N of pull force. At the maximum 1.0 MPa pressure, it delivers up to 318 kgf.
The rear adjuster screw acts as a mechanical stop that lets you trim the effective travel back from the 80 mm nominal stroke down to as little as 5 mm. This creates a 5-80 mm usable window, enabling rapid end-position tuning at commissioning without replacing the cylinder.
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