Airtac SAIJ80 Adjustable Cylinder SAIJ80BX475-100
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX475-100 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 SAIJ80BX475-100
The AirTAC SAIJ80X475-100 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 475 mm travel that can be dialed back by up to 100 mm, yielding an effective 375-475 mm usable window. This allows precise end-position tuning at commissioning without swapping out the physical cylinder. Delivering 4523 N of push force at 0.9 MPa, it fits robust automation requirements.
This unit is built with a SUS304 stainless steel rod for superior corrosion resistance and includes PT tapered port threads. It omits the FB, CA, CB, and CR mounting options, retaining a focused subset of brackets: Basic, FA, LB, TC, FTC, TCM1, and TCM2. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX475-100 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX475-100 |
|---|---|
| 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 SAIJ80BX475-100
| 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 SAIJ80BX475-100 Is Used
Variable End-Stop Machining
Dial in the exact 375-475 mm retract position for multi-stage machining operations without repositioning the cylinder body.
Product Size Changeover
Quickly adapt automated packaging lines to different carton lengths by adjusting the rear stopper up to 100 mm during setup.
Heavy-Duty Assembly Press
Leverage the 4523 N push force at 0.9 MPa to seat large bearings, while fine-tuning the final stroke end-position to prevent over-travel.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX475-100 the Right Cylinder?
Choose this 80 mm bore when an application demands heavy thrust—stepping down to a 63 mm bore yields only 2805 N at 0.9 MPa, whereas this model provides 4523 N. The 100 mm adjustment range is ideal for product changeovers on a line, letting operators fine-tune the retract end-stop without installing external physical stops. To match this ISO 15552 replacement exactly, specify the 80 mm bore, 475 mm stroke, 100 mm adjuster, PT port thread, Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting, and no magnet.
Because the stroke is 475 mm, the 25 mm rod and M20x1.5 thread still require external guiding to prevent excessive side-loading on the piston. Remember that the rear adjuster acts only as a travel stop and deceleration aid; it does not hold the load without live air. For true load-holding without pressure, use an external rod lock or pilot-operated check valve, or select the SAIL or BSAI cylinder 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 SAIJ80BX475-100 FAQ
It features a rear adjusting screw that acts as a mechanical stopper, allowing you to shorten the effective stroke from 475 mm down to 375 mm. This provides a 100 mm tuning window for the retract end-position without changing the cylinder itself.
At a 0.9 MPa operating pressure, the SAIJ80X475-100 generates 4523 N of push force and 4071 N of pull force. It operates at speeds between 30 and 800 mm/s.
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