Airtac SAIJ80 Adjustable Cylinder SAIJ80AX450-50
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX450-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 450mm 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
- Stroke450 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX450-50
The AirTAC SAIJ80X450-50 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the nominal 450 mm travel back by up to 50 mm, creating a precise 400-450 mm usable window. This on-machine fine-tuning eliminates the need to swap cylinders or bolt on external stops during product changeovers. It delivers a robust 4523 N of push force at 0.9 MPa.
Equipped with a SUS420J2 stainless steel rod for superior corrosion resistance, this 80 mm bore unit uses a PT tapered G3/8 port and includes adjustable air cushions at both ends. The rear adjustment mechanism acts strictly as a travel stop to dial in the end position, meaning it will not hold a load without live air pressure. For true load-holding without supply pressure, an external rod lock or related SAIL and BSAI series is required.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX450-50 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX450-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 450 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 SAIJ80AX450-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×450 | 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 SAIJ80AX450-50 Is Used
Machine Changeover
Dial in the 400-450 mm travel window during product size transitions without replacing the cylinder or adding external mechanical stops.
End-Position Tuning
Fine-tune the retract end-position at commissioning to absorb mechanical tolerances in a new fixture setup using the rear stopper screw.
Variable Ejector Stroke
Adjust the push-back distance on a sorting line to handle different carton lengths accurately before actuating the full 450 mm stroke.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX450-50 the Right Cylinder?
Choose this 80 mm bore model when your application demands high thrust, such as stepping up from a 50 mm bore that provides 1767 N push at 0.9 MPa, to handle heavier fixtures. The adjustable stroke is ideal for commissioning setups where the exact end-of-stroke position varies slightly, whereas a fixed-stroke SAI cylinder is preferred for rigid, unchanging dedicated endpoints.
Because the 450 mm stroke is relatively long, an external guide is recommended to prevent excessive side-loading on the SUS420J2 rod despite its 25 mm diameter and M20x1.5 thread. To ensure exact ISO 15552 interchangeability, match the 80 mm bore, 450 mm stroke, 50 mm adjustment, PT G3/8 port, and Basic, FA, LB, TC, FTC, TCM1, or TCM2 mounting footprints.
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 SAIJ80AX450-50 FAQ
At an operating pressure of 0.9 MPa, this 80 mm bore double-acting cylinder generates a push force of 4523 N and a pull force of 2268 N.
The rear adjuster acts as a mechanical stop that shortens the effective travel from the 450 mm nominal stroke down to a minimum of 400 mm, allowing precise end-position tuning without being a load-holding lock.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAIJ80 Adjustable Cylinder SAIJ80AX450-50
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.