Airtac SAIJ80 Adjustable Cylinder SAIJ80AX475-50S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX475-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 475mm 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
- Stroke475 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX475-50S
The AirTAC SAIJ80X475-50-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel back by up to 50 mm. This creates a usable 425-475 mm end-position window, enabling precise fine-tuning at commissioning without swapping the cylinder or adding external stops. It delivers 2513 N of push force at 0.5 MPa and operates at speeds between 30-800 mm/s.
Equipped with a SUS420J2 stainless steel rod and PT tapered ports, it carries side loads well, though the 475 mm stroke requires an external guide to prevent rod bending. The integrated magnet works with AirTAC CMSE reed and DMSE electronic sensors fitted into the dual-side barrel grooves. The rear adjuster acts purely as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX475-50S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX475-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 475 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 SAIJ80AX475-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×475 | 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 SAIJ80AX475-50S Is Used
Machine Changeover
Dial in the 425-475 mm retract position during product size transitions without physically replacing the cylinder or reworking the fixture.
End-Stop Calibration
Fine-tune the final end-of-stroke position during machine commissioning to perfect a clamping or pressing operation within a 50 mm window.
Variable Diverter Travel
Adjust the stroke length on a sorting or diverting mechanism on the fly to accommodate different package sizes moving down the line.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX475-50S the Right Cylinder?
Choose this adjustable SAIJ model when a machine setup requires variable end-stops or frequent product-size changeovers. If you need less force, stepping down to a 63 mm bore yields 1559 N at 0.5 MPa; if your application demands higher thrust, the 100 mm bore provides 3927 N. Unlike a fixed-stroke SAI cylinder, the rear screw on this unit lets you dial in the exact retract position on the fly.
Because the 475 mm stroke is relatively long, always use an external guide to support the load and minimize side-load stress on the rod. For exact ISO 15552 interchangeability, match the 80 mm bore, 475 mm stroke, 50 mm adjustment, PT ports, and the -S magnet. Note that the SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR brackets. If you need true load-holding without live air, use an external rod lock or pilot-operated check valve, or switch to the SAIL or BSAI series.
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 SAIJ80AX475-50S FAQ
At 0.5 MPa, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. At the maximum operating pressure of 1.0 MPa, it can deliver up to 513 kgf.
The rear adjuster screw lets you shorten the 475 mm nominal stroke by up to 50 mm, giving a usable travel window of 425-475 mm. It functions as a mechanical stop for end-position tuning and does not lock or hold the load without continuous air pressure.
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