Airtac SAIJ80 Adjustable Cylinder SAIJ80AX450-100
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX450-100 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 SAIJ80AX450-100
The AirTAC SAIJ80X450-100 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 350-450 mm usable travel window, allowing you to dial back the 450 mm nominal stroke by up to 100 mm during commissioning. This bore delivers 2513 N pull force at 0.5 MPa and uses a robust M20x1.5 rod thread.
The piston rod is constructed from SUS420J2 stainless steel (code A) for enhanced corrosion resistance. It features PT tapered port threads (G3/8) and dual sensor grooves on the extruded aluminum barrel. Note that the rear adjuster acts only as a travel stop to fine-tune deceleration; it does not hold loads without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX450-100 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX450-100 |
|---|---|
| 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 SAIJ80AX450-100
| 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 SAIJ80AX450-100 Is Used
Product Changeover
Quickly modify the effective stroke from 350 to 450 mm when switching to a different package size on a packaging line, without changing the cylinder.
End-Position Tuning
Fine-tune the exact retract position during machine commissioning to align tooling perfectly, using the rear screw rather than adding mechanical shims.
Variable End Stops
Provide flexible deceleration points in automated assembly equipment where multiple retract positions are required from a single actuator.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX450-100 the Right Cylinder?
Choose this 80 mm bore if your application requires the 2513 N pull force at 0.5 MPa but needs flexible end-positioning rather than a fixed stop. The 100 mm adjustment range is perfect for product changeovers on a line, eliminating the need to swap cylinders or bolt on external stops. If your machine needs to hold a load position without continuous air pressure, select the SAIL or BSAI series instead, as the SAIJ adjuster is not a locking mechanism.
Because the 450 mm stroke is substantial, the M20x1.5 rod and internal components will experience higher bending moments under side loads. Always use an external guide rail to prevent rod damage and premature seal wear. When replacing an ISO 15552 cylinder, match the 80 mm bore, 450 mm stroke, 100 mm adjustment, PT G3/8 port, and mounting style (Basic, FA, LB, TC, FTC, TCM1, or TCM2).
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 SAIJ80AX450-100 FAQ
At 0.5 MPa, this 80 mm bore cylinder provides 2513 N pull force and 2268 N push force. It operates at speeds between 30 and 800 mm/s.
The rear adjuster screw lets you shorten the 450 mm nominal stroke by up to 100 mm, creating a 350-450 mm usable travel window. It functions as a mechanical stop and does not lock the load without live air.
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