Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-30
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-30 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 SAIJ80X150-30
The AirTAC SAIJ80X150-30 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 150 mm stroke that can be fine-tuned down by up to 30 mm, giving you a precise 120-150 mm usable travel window. Delivering 2513 N of push force at 0.5 MPa, it fits perfectly into medium-to-heavy automation tasks.
This extruded aluminum profile cylinder features a 25 mm carbon steel piston rod and a PT tapered G3/8 port. The rear adjuster acts purely as a mechanical stop to set the retraction end position, meaning it will not hold the load without live air pressure. For position holding without pressure, consider the SAIL or BSAI series instead.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-30 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-30 |
|---|---|
| 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 SAIJ80X150-30
| 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 SAIJ80X150-30 Is Used
Product Changeover
Dial in the 120-150 mm travel window during format size changes on a packaging line without swapping hardware.
End-Stop Tuning
Use the rear adjuster to precisely set the retraction end position during machine commissioning.
Variable Positioning
Provide adaptable end-stops for assembly stations handling slightly varying part dimensions.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X150-30 the Right Cylinder?
Choose this 80 mm bore when you need more thrust than a 63 mm cylinder provides, stepping up from 1559 N to 2513 N at 0.5 MPa. The adjustable stroke is ideal for machine setups requiring commissioning fine-tuning or product-size changeovers, preventing the need to swap out a fixed-stroke SAI cylinder. To match this ISO 15552 replacement exactly, verify the 150 mm stroke, 30 mm adjustment, PT G3/8 port, and your required mounting style.
Mounting options for this series include Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR styles. Because the 150 mm stroke is under the 300 mm threshold, side-load stress is moderate, but you should still ensure the 25 mm rod is properly supported by external guides to prevent binding.
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 SAIJ80X150-30 FAQ
The rear adjuster screw lets you shorten the effective stroke by up to 30 mm, creating a 120-150 mm travel window. It functions as a mechanical stop and does not lock the load without continuous air pressure.
At 0.5 MPa, it provides 2513 N of push force and 2268 N of pull force. At 0.7 MPa, the push force increases to 3518 N.
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