Airtac SAIJ80 Adjustable Cylinder SAIJ80BX150-20S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX150-20S 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 SAIJ80BX150-20S
It features a 150mm nominal stroke that can be fine-tuned down by up to 20mm, creating a precise 130-150mm usable travel window. The SUS304 stainless steel rod provides excellent corrosion resistance, while the integrated magnet (-S) supports position sensing.
This adjustable-stroke design allows you to dial in the retract end position during commissioning without swapping the cylinder or adding external stops. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. It carries a PT G3/8 port and operates at speeds between 30-800mm/s, with variable air cushions at both ends to decelerate the load smoothly.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX150-20S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX150-20S |
|---|---|
| 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 SAIJ80BX150-20S
| 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 SAIJ80BX150-20S Is Used
Product Changeover
Quickly dial in the 130-150mm stroke window during line changeovers to accommodate different product sizes without replacing hardware.
End-Stop Calibration
Fine-tune the retract position during machine commissioning to achieve precise mechanical alignment using the rear stopper screw.
Variable Positioning
Set intermediate retract endpoints on automated machinery where the exact final position needs minor physical adjustments on-site.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX150-20S the Right Cylinder?
Choose this 80mm bore when an application demands higher thrust than a 63mm cylinder (1559N at 0.5 MPa) but does not require the full output of a 100mm bore (3927N at 0.5 MPa). The adjustable stroke is ideal for machine setups requiring variable end-stops or product changeovers, offering flexibility that a fixed-stroke SAI cannot match. For any stroke of 150mm or more, ensure external guides are used to support the load and prevent excessive side-loading on the rod.
To replace this cylinder per ISO 15552 dimensions, match the 80mm bore, 150mm stroke, 20mm adjustment, PT G3/8 port, and -S magnet. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2. Note that the rear adjuster acts only as a travel stop and does not hold the load without live air; for true load-holding, 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 SAIJ80BX150-20S FAQ
At 0.7 MPa, the push force increases to 3518N.
The rear adjuster screw allows you to shorten the 150mm nominal stroke by up to 20mm, providing a usable travel window of 130-150mm. The adjuster acts as a mechanical stop to set the end position and does not lock the load without continuous air pressure.
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1-Year Warranty
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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Most inquiries answered within 7-8 hours.
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