Airtac SAIJ80 Adjustable Cylinder SAIJ80BX475-30S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX475-30S 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 SAIJ80BX475-30S
The AirTAC SAIJ80X475-30-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 475 mm travel that can be fine-tuned down by up to 30 mm, giving operators a precise 445 to 475 mm usable window during commissioning. Delivering 4523 N of push force at 0.9 MPa, it is built with a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for position sensing.
This extruded aluminum profile cylinder utilizes a G3/8 port and a 25 mm rod with an M20x1.5 thread, handling speeds from 30 to 800 mm/s. The rear screw functions purely as a travel stop to dial in end positions without adding external physical stops, while the integrated sensor grooves on both sides accept CMSE reed or DMSE electronic solid-state switches.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX475-30S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX475-30S |
|---|---|
| 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 SAIJ80BX475-30S
| 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 SAIJ80BX475-30S Is Used
Machine Changeover
Dial in the 445-475 mm retract end-stop during product size transitions without physically replacing the cylinder or adding external shims.
Variable End-Stop Tuning
Fine-tune the final resting position of tooling at commissioning using the rear adjuster, ensuring precise alignment before locking down the setup.
Corrosive Assembly Lines
Leverage the 4523 N push force and SUS304 stainless steel rod to drive heavy actuators in washdown or mildly corrosive manufacturing environments.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX475-30S the Right Cylinder?
Choose this 80 mm bore when an application requires more thrust than the 63 mm option (which provides 2805 N push at 0.9 MPa), but does not need the larger 100 mm class. The adjustable stroke is ideal for product-size changeovers on a line, allowing you to trim the retract end by up to 30 mm without swapping the cylinder. Because the 475 mm stroke is relatively long, ensure adequate external guidance to prevent excessive side-loading on the M20x1.5 rod.
For a direct ISO 15552 replacement match, verify the 80 mm bore, 475 mm stroke, 30 mm adjustment, PT tapered port threads, and the -S magnet option. Note that the rear adjuster and air cushions only decelerate the load; they do not hold position without live air. For true load-holding without pneumatic pressure, consider an AirTAC SAIL or BSAI series cylinder. SAIJ supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts.
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 SAIJ80BX475-30S FAQ
At 0.9 MPa operating pressure, this 80 mm bore cylinder provides 4523 N of push force and 4071 N of pull force. It can deliver a maximum of 513 kgf at 1.0 MPa.
The rear adjuster acts as a mechanical stop that lets you shorten the 475 mm nominal stroke by up to 30 mm, creating a 445 to 475 mm travel window. It sets the end position but does not lock the load without continuous air pressure.
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