Airtac SAIJ80 Adjustable Cylinder SAIJ80AX500-30S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX500-30S 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 SAIJ80AX500-30S
The AirTAC SAIJ80X500-30-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster, enabling a usable travel window of 470-500mm from its 500mm nominal stroke. It delivers a robust 4523N push force at 0.9 MPa, making it well-suited for heavy-duty positioning tasks. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated magnet supports AirTAC CMSE reed and DMSE electronic solid-state switches for precise end-of-stroke detection.
This unit is configured with a SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance and PT tapered port threads. The rear adjuster acts purely as a mechanical stop to fine-tune the retract position without adding external stops; it does not lock or hold the load without live air pressure. For load-holding requirements, consider the SAIL or BSAI series instead.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX500-30S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX500-30S |
|---|---|
| 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 SAIJ80AX500-30S
| 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 SAIJ80AX500-30S Is Used
Machine Setup & Changeover
Fine-tune the 470-500mm retract stop during product size transitions on a packaging line without swapping cylinders or re-engineering external mechanical stops.
Variable End-Stop Positioning
Adjust the rear stroke by up to 30mm to precisely set the retraction point for diverter arms or gating mechanisms handling varying package dimensions.
Heavy-Duty Assembly Press
Leverage the 4523N push force at 0.9 MPa to seat components securely, using the rear adjuster to dial in the exact contact depth without repositioning the entire fixture.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX500-30S the Right Cylinder?
Choose this 80mm bore adjustable-stroke cylinder when your application requires dialing in a specific retract end-position during commissioning or product changeover, avoiding the need to physically swap out a fixed-stroke SAI cylinder. If your force requirements are lower, stepping down to a 63mm bore yields 2805N push force at 0.9 MPa, while stepping up to a 100mm bore provides 7068N for heavier loads. To match this ISO 15552 interchangeable cylinder, specify: 80mm bore, 500mm stroke, 30mm adjustment, PT G3/8 port, Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting, and the -S magnet option.
Because the 500mm stroke is long and the 25mm rod with M20x1.5 thread carries substantial side-load capacity, an external guide is still recommended for any unsupported load to prevent premature wear. Operating speed ranges from 30-800mm/s, regulated by variable air cushions at both ends.
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 SAIJ80AX500-30S FAQ
The rear adjuster acts as a mechanical stop that lets you shorten the effective stroke by up to 30mm, providing a usable travel window of 470-500mm. It allows fine-tuning of the retract end-position at commissioning without adding external stops, but it does not lock or hold the load without live air pressure.
At 0.9 MPa, this cylinder provides 4523N of push force and 2268N of pull force. The operating speed range is 30-800mm/s, and it features a 25mm diameter rod with an M20x1.5 thread.
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