Airtac SAIJ80 Adjustable Cylinder SAIJ80X175-50
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X175-50 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 a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ80 mm
- Stroke175 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X175-50
The AirTAC SAIJ80X175-50 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers a robust 2513N push force at 0.5 MPa and provides a usable travel window of 125 to 175 mm, allowing you to trim the retract position by up to 50 mm during commissioning without swapping out the unit.
This 80mm bore actuator uses a G3/8 port and a 25mm carbon steel rod with an M20x1.5 thread to handle high side loads. It retains the standard extruded aluminum barrel with dual sensor grooves, though it omits the FB, CA, CB, and CR mounting options found on some fixed-stroke variants.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X175-50 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X175-50 |
|---|---|
| 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 | 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 SAIJ80X175-50
| 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 SAIJ80X175-50 Is Used
Product Changeovers
Dial in the exact end position for new packaging sizes using the 50mm rear adjuster, avoiding the need to physically swap cylinders on the line.
Variable Diverter Stops
Set precise retract distances between 125 and 175 mm to handle different carton lengths on a single sorting conveyor.
Machine Setup
Fine-tune the tooling contact point during initial commissioning to perfect the kinematics without machining custom spacers.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X175-50 the Right Cylinder?
Choose this 80mm bore when an application requires more thrust than a 63mm cylinder (which provides 1559N push at 0.5 MPa) but less bulk than a 100mm option. The 50mm adjustment range is perfect for production lines running mixed product sizes, enabling rapid end-stop tuning without adding external mechanical stops. Because the stroke is 175mm, keep the load guided to prevent excessive side loading on the rod.
When replacing an ISO 15552 cylinder, match the 80mm bore, 175mm nominal stroke, 50mm adjuster, PT port thread, and standard carbon steel rod. Note that the rear adjuster functions only as a travel stop; it will not hold a load without continuous air pressure. For true load-holding, consider the SAIL or BSAI series instead.
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 SAIJ80X175-50 FAQ
At 0.5 MPa operating pressure, this 80mm bore cylinder provides 2513N of push force and 2268N of pull force. At 0.7 MPa, the push force increases to 3518N.
The rear adjuster acts as a mechanical stop that lets you shorten the effective stroke from its 175mm nominal length down to as little as 125mm. It is a travel stop only, not a lock, and does not hold the load without live air pressure.
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