Airtac SAIJ80 Adjustable Cylinder SAIJ80BX150-20
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX150-20 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ80 mm
- Stroke150 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 SAIJ80BX150-20
Its external stopper screw allows you to fine-tune the effective travel down from the 150mm nominal stroke, providing a usable adjustment window of 130-150mm. This enables precise end-position calibration at commissioning without swapping out the entire unit.
Built with a SUS304 stainless steel rod (option B), this 80mm bore unit handles demanding environments while mating to G3/8 ports. It utilizes a reduced mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. The rear stopper acts purely as a travel limit to work alongside the standard air cushions, not as a load-holding brake.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX150-20 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX150-20 |
|---|---|
| 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 | 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 SAIJ80BX150-20
| 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 SAIJ80BX150-20 Is Used
Product Changeovers
Dial in the 130-150mm travel window during format size changes on a packaging line, allowing rapid equipment setup without replacing hardware.
End-Stop Calibration
Fine-tune the exact retraction point during machine commissioning to prevent mechanical interference, relying on the rear screw rather than external stops.
Variable Positioning
Provide adjustable end-of-stroke positioning for assembly presses that occasionally need a slightly shorter travel distance to accommodate different component heights.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX150-20 the Right Cylinder?
If your process requires less force, stepping down to a 63mm bore yields 1559N; if more force is needed, a 100mm bore provides 3927N. To match this exact adjustable configuration for an ISO 15552 replacement, specify the 150mm stroke, 20mm adjustment, PT tapered port threads, SUS304 rod, and the appropriate mounting bracket.
Because the 150mm stroke is under the 300mm threshold, side-load stress on the 25mm rod is moderate, though external guides should still be used for heavy lateral loads. Remember that the rear adjuster only sets the travel end; it cannot hold a load without continuous live air. For true pneumatic locking without pressure, consider an AirTAC SAIL or BSAI cylinder.
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 SAIJ80BX150-20 FAQ
At 0.7MPa, the push force increases to 3518N.
The rear adjuster screw lets you shorten the 150mm nominal stroke by up to 20mm, creating a usable travel window of 130-150mm. 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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