Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-40
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 150mm 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
- Stroke150 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-40
The AirTAC SAIJ80X150-40 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 2513N of push force at 0.5 MPa. Its extruded aluminum barrel features sensor grooves on both sides for straightforward position feedback installation. By turning the rear screw, you can trim the nominal 150mm travel back by up to 40mm, creating a precise 110-150mm usable window.
This built-in stopper allows fine end-position tuning at commissioning without swapping hardware or adding external stops. The 25mm carbon steel piston rod and M20x1.5 thread provide robust resistance to side loads, while the PT tapered port ensures a secure pneumatic connection. It uses variable air cushions at both ends to decelerate the load smoothly.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-40 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 150 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 SAIJ80X150-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×150 | 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 SAIJ80X150-40 Is Used
Product Changeovers
Dial in the 110-150mm travel window during format size changes on a packaging line without swapping out the entire actuator.
Commissioning Calibration
Fine-tune the retract end position during machine setup to perfect the seating force of a 2513N press without external shims.
Variable End Stops
Adjust the stroke limit on the fly for automated assemblies that process multiple part lengths on the same fixture.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-40 the Right Cylinder?
Select this 80mm bore when an application requires substantial thrust—such as 2513N push at 0.5 MPa—but still needs on-the-fly end-position tweaking; if you need less force, a 63mm bore offers 1559N. Choose the SAIJ adjustable type over a fixed SAI when accommodating product size changes on a line. To replace an ISO 15552 cylinder, match the 150mm stroke, 40mm adjustment, G3/8 port, and mounting style. The available mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
Because the rear adjuster acts only as a travel stop and the air cushions manage deceleration, neither will hold a load without live air. For dead-load holding, consider an external rod lock, a pilot-operated check valve, or AirTAC SAIL and BSAI locking cylinders. Since this model lacks a magnet, adding position sensors requires ordering a -S variant to support CMSE reed or DMSE electronic switches.
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 SAIJ80X150-40 FAQ
It features a rear screw stopper that lets you trim the effective stroke by up to 40mm, providing a usable travel window of 110-150mm. The adjuster sets the retract end position, while variable air cushions handle deceleration.
At 0.5 MPa operating pressure, it provides 2513N of push force and 2268N of pull force. It can reach up to 4523N push force at its maximum 0.9 MPa pressure rating.
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