Airtac SAIJ80 Adjustable Cylinder SAIJ80AX350-30
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX350-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 350mm 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
- Stroke350 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX350-30
The AirTAC SAIJ80X350-30 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. By dialing in the external stopper, you achieve a usable travel window of 320-350 mm, allowing precise end-position tuning without adding external stops. It delivers a robust 4523N of push force at 0.9 MPa, making it well-suited for heavy-duty positioning tasks.
This model features a SUS420J2 stainless steel rod (option A) for improved corrosion resistance in humid environments. It uses PT tapered G3/8 port threads and omits the FB, CA, CB, and CR mounting options, utilizing a focused set of Basic, FA, LB, TC, FTC, TCM1, and TCM2 interfaces for streamlined machine integration.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX350-30 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX350-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 350 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 SAIJ80AX350-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×350 | 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 SAIJ80AX350-30 Is Used
Machine Changeover
Dial in the 320-350mm travel window during product size changes to set new retract endpoints quickly without physically swapping cylinders.
Heavy Assembly Pressing
Leverage the 4523N push force at 0.9 MPa to securely seat large components while fine-tuning the final position via the rear stopper.
Conveyor Positioning
Use the adjustable retract stop to accurately set the staging position for parts awaiting the next stage of automated processing.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX350-30 the Right Cylinder?
Choose this 80mm bore cylinder when an application requires substantial thrust, such as 2513N at 0.5 MPa, but might need to step down to a 63mm bore (1402N pull at 0.5MPa) if the load is lighter and space is tight. The adjustable stroke is perfect for machine setup and product changeover, letting you fine-tune the retract end without swapping the cylinder. Because the 350mm stroke is relatively long, an external guide is recommended to prevent excessive side-load wear on the rod.
For load-holding without live air pressure, note that the rear adjuster is a travel stop, not a lock. You must use an external rod lock, a pilot-operated check valve, or an AirTAC SAIL or BSAI clamp-lock cylinder. To replace an ISO 15552 unit, match the 80mm bore, 350mm stroke, 30mm adjustment, PT G3/8 port, and the specified mounting interface.
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 SAIJ80AX350-30 FAQ
At 0.9 MPa, this 80mm bore cylinder provides a push force of 4523N and a pull force of 4071N. At 0.5 MPa, it delivers 2513N push and 2268N pull.
The rear adjuster acts as a mechanical stop that shortens the nominal 350mm stroke by up to 30mm, giving you an effective travel range of 320-350mm for fine-tuning the end position at commissioning.
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