Airtac SAIJ80 Adjustable Cylinder SAIJ80BX500-30
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX500-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 500mm 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.
- BoreØ80 mm
- Stroke500 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX500-30
The AirTAC SAIJ80X500-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 470-500 mm usable travel window. Delivering 2268 N of pull force at 0.5 MPa, it uses a robust 25 mm SUS304 stainless steel rod with an M20x1.5 thread to handle high side loads.
This adjustable-stroke model omits the FB, CA, CB and CR mounts, utilizing a reduced interface of Basic, FA, LB, TC, FTC, TCM1 and TCM2. The rear adjuster acts strictly as a travel stop for end-position tuning and does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX500-30 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX500-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 500 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M20×1.5 |
| 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80BX500-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×500 | 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 SAIJ80 Adjustable Cylinder SAIJ80BX500-30 Is Used
Product Changeover
Dial in the 470-500 mm travel window during line size changes without physically replacing the cylinder or adding external stops.
End-Position Tuning
Fine-tune the retract stroke at commissioning using the rear screw to perfectly align tooling or fixtures on the machine.
Long-Stroke Assembly
Leverage the 25 mm SUS304 rod and 500 mm travel for extended reach operations, ensuring robust performance in demanding setups.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX500-30 the Right Cylinder?
Choose this 80 mm bore over the 63 mm version (1402 N pull at 0.5 MPa) when your application requires greater thrust, or step down to the 100 mm bore (3681 N pull) for heavier loads. The 30 mm adjustment window is ideal for fine-tuning end positions during machine setup or product changeover without swapping cylinders.
Because the 500 mm stroke exceeds the 300 mm threshold, an external guide is recommended to prevent rod sag and excessive side loading. For load-holding without continuous air pressure, use an SAIL or BSAI cylinder, as this SAIJ adjuster is a stop, not a lock. It is dimensionally interchangeable per ISO 15552, featuring PT tapered ports and operating at 30-800 mm/s.
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 SAIJ80 Adjustable Cylinder SAIJ80BX500-30 FAQ
At 0.5 MPa it provides 2513 N push and 2268 N pull force. At 0.7 MPa it provides 3518 N push. The operating speed range is 30-800 mm/s.
The rear adjuster screw lets you shorten the nominal 500 mm stroke by up to 30 mm, creating a 470-500 mm travel window. It functions as a mechanical stop for tuning and does not lock the load without live air.
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