Airtac SAIJ80 Adjustable Cylinder SAIJ80BX475-75S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX475-75S 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 SAIJ80BX475-75S
The AirTAC SAIJ80X475-75-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 75 mm. This creates a highly versatile 400-475 mm usable window, letting you dial in the exact retract end-position during commissioning without swapping out the barrel. It delivers a robust 2513 N pull force at 0.5 MPa, making it suitable for heavy-duty positioning tasks.
This specific SKU is configured with a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for CMSE reed and DMSE electronic sensors. The extruded aluminum barrel includes sensor grooves on both sides, and the unit uses a PT G3/8 port. Remember that the rear adjuster acts purely as a mechanical stop for deceleration alongside the air cushions; it does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX475-75S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX475-75S |
|---|---|
| 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 SAIJ80BX475-75S
| 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 SAIJ80BX475-75S Is Used
Variable End-Stop Setup
Fine-tune the 400-475 mm retract position during machine commissioning to accommodate different product sizes without changing the cylinder.
Heavy-Duty Positioning
Leverage the 2513 N pull force at 0.5 MPa to move and stage heavy pallets or fixtures accurately along the production line.
Guided Long-Stroke Handling
Support the 475 mm stroke with external guides to manage the M20x1.5 rod under load, ensuring precise alignment without side-load wear.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX475-75S the Right Cylinder?
Choose this 80 mm bore cylinder when your application requires substantial force (2513 N pull at 0.5 MPa) alongside a variable end-stop. If you need less force, stepping down to a 63 mm bore yields 1402 N, while moving up to a 100 mm bore provides 3681 N. The adjustable stroke is ideal for machine setups requiring frequent product-size changeovers, eliminating the need to fabricate external stops.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 475 mm stroke, 75 mm adjustment, PT G3/8 port, and -S magnet. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Because this unit has a 475 mm stroke, the M20x1.5 rod and piston assembly can experience side-loading; always use an external guide to support long unsupported loads. For load-holding without live pressure, select a SAIL or BSAI cylinder instead of relying on the adjuster.
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 SAIJ80BX475-75S FAQ
It provides 2513 N of pull force and 2268 N of push force at 0.5 MPa, with a maximum operating speed of 30-800 mm/s.
The rear adjuster allows you to shorten the 475 mm nominal stroke by up to 75 mm, giving a usable travel window of 400-475 mm for precise end-position tuning.
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