Airtac SAIJ80 Adjustable Cylinder SAIJ80AX145-75S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX145-75S 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 SAIJ80AX145-75S
The AirTAC SAIJ80X145-75-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 145 mm travel by up to 75 mm. This creates a highly flexible 70-145 mm usable stroke window, perfect for adapting to varying product sizes without physically swapping the actuator.
This variant features a SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance and includes a magnet (-S) for direct compatibility with AirTAC CMSE reed and DMSE electronic sensors. The extruded aluminum barrel incorporates sensor grooves on both sides, and the rear stopper acts purely as a travel end-point decelerator rather than a load-holding lock.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX145-75S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX145-75S |
|---|---|
| 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 SAIJ80AX145-75S
| 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 SAIJ80AX145-75S Is Used
Variable End-Stop Positioning
Dial in the exact retraction point between 70 and 145 mm during machine commissioning to accommodate different material lengths without adding external mechanical stops.
Sensor-Driven Assembly
Utilize the integrated magnet with DMSE electronic sensors to confirm exact end-of-stroke positions while fine-tuning the rear adjuster for delicate assembly operations.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX145-75S the Right Cylinder?
If your application needs less force, stepping down to a 63 mm bore yields 1559 N; if you require more power, a 100 mm bore provides 3927 N. The wide 75 mm adjustment range is ideal for product changeovers, functioning as a setup tool rather than a fixed stroke.
When specifying a replacement, ensure you match the 80 mm bore, 145 mm nominal stroke, 75 mm adjustment code, PT tapered port threads, and the -S magnet option. The mounting hardware must come from the SAIJ subset: Basic, FA, LB, TC, FTC, TCM1, or TCM2. Because the 145 mm stroke is relatively short, side-load stress is minimal, but an external guide is still recommended for heavy off-center loads. For true load holding without live air pressure, you must integrate an external rod lock or choose a 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 SAIJ80AX145-75S FAQ
At 0.7 MPa, the push force increases to 3518 N.
The rear adjuster screw allows you to shorten the effective stroke by up to 75 mm from the 145 mm nominal length, providing a usable travel window of 70 to 145 mm. This stopper only sets the travel end-point and does not lock the load without continuous air pressure.
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