Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-50
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-50 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 SAIJ80X150-50
The AirTAC SAIJ80X150-50 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 3518N of push force at 0.7 MPa. With a nominal stroke of 150 mm and a 50 mm adjustment range, it provides a usable travel window of 100-150 mm. This built-in adjustability allows you to dial in the exact retract end-position during commissioning without adding external stops or swapping the cylinder.
It features a 25 mm carbon steel piston rod with an M20x1.5 thread, sized to handle substantial side loads. The extruded aluminum barrel includes sensor grooves on both sides for direct mounting of CMSE reed or DMSE electronic switches. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR styles found in some standard ISO lines.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-50 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-50 |
|---|---|
| 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 SAIJ80X150-50
| 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 SAIJ80X150-50 Is Used
Machine Changeover
Dial in the 100-150 mm travel window during product size changes without swapping physical spacers or cylinders.
End-Position Tuning
Fine-tune the retract stop during commissioning to hit exact datum points on multi-tool machining stations.
Variable End Stops
Set precise retraction limits on automated assembly lines where external stop blocks are impractical to mount.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-50 the Right Cylinder?
Choose this 80 mm bore when an application requires high thrust—stepping up from a 63 mm bore increases push force at 0.5 MPa from 1559N to 2513N. The 50 mm adjustment window is ideal for product changeovers on a line, letting operators fine-tune the retract stop quickly. If you need a fixed end-position without adjustment, the standard SAI cylinder is the simpler choice.
For drop-in replacement, match the 80 mm bore, 150 mm stroke, 50 mm adjustment, PT tapered port threads, and the specific mounting style. Because the stroke is 150 mm, it falls under the 300 mm threshold, but the 25 mm rod still provides excellent rigidity. Remember that the rear adjuster is a travel stop, not a lock; the SAIJ does not hold loads without live air pressure, so for fail-safe holding point to the SAIL or BSAI series.
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 SAIJ80X150-50 FAQ
At 0.7 MPa operating pressure, the 80 mm bore generates 3518N of push force and 2268N of pull force. The maximum thrust at 1.0 MPa is 513 kgf.
The rear adjuster screw lets you shorten the effective 150 mm stroke by up to 50 mm, creating a 100-150 mm usable travel window. The adjuster acts as a mechanical stop for end-position tuning and does not lock the load without live air.
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