Airtac SAIJ80 Adjustable Cylinder SAIJ80BX145-20
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX145-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 145mm 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
- Stroke145 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 SAIJ80BX145-20
The AirTAC SAIJ80X145-20 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 145 mm stroke that can be dialed back by up to 20 mm, yielding a precise usable travel window of 125 to 145 mm.
This SKU is configured with a SUS304 stainless steel rod (option B) for superior corrosion resistance and features PT tapered port threads (G3/8). The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement. The rear adjuster acts purely as a mechanical stop to fine-tune the retract end position during commissioning without adding external stops.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX145-20 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX145-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 145 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 SAIJ80BX145-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×145 | 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 SAIJ80BX145-20 Is Used
Machine Setup Calibration
Fine-tune the 125-145 mm travel window during initial commissioning to dial in exact retract positions without machining external stop blocks.
Product Size Changeover
Quickly adjust the end stop by up to 20 mm on packaging lines when handling a new product size, minimizing downtime between runs.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX145-20 the Right Cylinder?
The integrated 20 mm adjustment range is ideal for product changeovers on a line, allowing you to shift the end position without physically swapping the cylinder. For fixed-travel needs without the tuning capability, the standard SAI series is the direct alternative.
When ordering, confirm the 80 mm bore, 145 mm stroke, 20 mm adjustment, PT G3/8 port, SUS304 rod material, and the required mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because this is a plain SAIJ, the rear stopper and air cushions only decelerate the load; they do not hold it without live air. For dead-stop load holding, select the SAIL or BSAI series instead.
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 SAIJ80BX145-20 FAQ
At the maximum 1.0 MPa pressure, it can deliver up to 513 kgf.
The rear adjuster screw allows you to shorten the effective stroke from the nominal 145 mm down to 125 mm. This creates a 125-145 mm adjustable travel window, letting you set the exact retract end position at commissioning without replacing the cylinder.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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