Airtac SAIJ80 Adjustable Cylinder SAIJ80BX175-20S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX175-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 175mm 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
- Stroke175 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 SAIJ80BX175-20S
The AirTAC SAIJ80X175-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to fine-tune the retract end position without adding external stops. The integrated -S magnet supports position sensing using CMSE reed or DMSE electronic solid-state switches.
Because this specific SKU carries a 20 mm adjustment code on a 175 mm nominal stroke, it provides a usable travel window of 155 to 175 mm. This built-in adjuster acts purely as a mechanical stop to set the end-of-travel position and relies on the variable air cushions for deceleration; it does not hold the load without live air pressure. For load-holding requirements without continuous air, consider the SAIL or BSAI series.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX175-20S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX175-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 175 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 SAIJ80BX175-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×175 | 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 SAIJ80BX175-20S Is Used
Product Changeover
Dial in the 155-175 mm travel window during product size transitions without physically replacing the cylinder or bolting on external stopper blocks.
Variable End-Stops
Adjust the mechanical stopper to accommodate multiple part lengths on a single conveyor line, leveraging the built-in air cushions for smooth deceleration.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX175-20S the Right Cylinder?
The adjustable 155-175 mm travel window is ideal for machine changeovers where the exact end position must be dialed in at commissioning without physically swapping out a fixed-stroke SAI cylinder.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 175 mm nominal stroke, 20 mm adjustment range, PT G3/8 port thread, and the -S magnet requirement. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR. Since the 175 mm stroke is below the 300 mm threshold, side-load concerns are minimal, but the 25 mm rod and M20x1.5 thread handle standard loads effectively.
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 SAIJ80BX175-20S FAQ
If pressure is increased to 0.9 MPa, the push force reaches 4523N.
The rear adjuster screw allows you to mechanically shorten the 175 mm nominal stroke by up to 20 mm, creating a usable travel window of 155 to 175 mm. This stopper sets the end position but does not lock the load without live air pressure.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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