Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X800-30S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X800-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 800mm 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
- Stroke800 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X800-30S
The AirTAC SAIJ63X800-30-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 800 mm stroke that can be fine-tuned backward by up to 30 mm, yielding a usable travel window of 770 to 800 mm. Delivering 1559 N of push force at 0.5 MPa, it fits mid-range automation tasks perfectly. The integrated magnet (-S) enables position detection with AirTAC CMSE reed or DMSE electronic sensors along the dual side sensor grooves.
This adjustable variant shines during commissioning and product changeovers, letting you dial in the retract end position without swapping hardware or adding external stops. The carbon steel piston rod features an M16x1.5 thread, while the PT tapered port ensures a tight pneumatic seal at the G3/8 interface. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X800-30S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X800-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 800 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 SAIJ63X800-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×800 | 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 SAIJ63X800-30S Is Used
Product Changeover
Dial in the 770-800 mm retract position during format size changes on packaging lines without swapping out the entire actuator.
Variable End Stops
Provide adjustable physical stops for long-travel conveyor sorting arms that must accommodate boxes of slightly varying depths.
Machine Setup Tuning
Fine-tune the final retract position during initial commissioning to perfectly align tooling, avoiding costly mechanical shimming.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X800-30S the Right Cylinder?
Choose this 63 mm bore when a 50 mm cylinder (982 N push at 0.5 MPa) lacks thrust or an 80 mm bore (2513 N) is physically oversized. The 30 mm adjustment window is ideal for machines requiring precise retract positioning across slightly varying product sizes, avoiding the rigid limits of a fixed SAI cylinder. For a true ISO 15552 replacement match, verify the 800 mm stroke, 30 mm adjust code, G3/8 PT port, and mounting style (Basic, FA, LB, TC, FTC, TCM1, or TCM2).
Because the 800 mm stroke is long, the M16x1.5 carbon steel rod will experience amplified leverage under side loading; an external guide rail is strongly recommended to prevent premature seal wear. If your application requires the load to remain held without continuous air supply, note that the rear stopper is not a brake. You would need to step up to a SAIL locking cylinder or an external rod lock.
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 SAIJ63X800-30S FAQ
At 0.5 MPa it provides 1559 N of push force and 1402 N of pull force. If you increase the operating pressure to 0.7 MPa, the push force rises to 2182 N.
The rear adjuster screw lets you shorten the effective stroke by up to 30 mm, creating a 770-800 mm travel window. It acts as a physical stop for end-position tuning and is not a locking device.
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