Airtac SAIJ80 Adjustable Cylinder SAIJ80BX475-75S
The 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ80 mm
- Stroke475 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
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 | 2268 N | 2268 N |
| 0.7 MPa | 3175 N | — |
| Max (@1.0 MPa) | 463 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. 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
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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