Airtac SAIJ80 Adjustable Cylinder SAIJ80BX325-50S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX325-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 325mm 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
- Stroke325 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 SAIJ80BX325-50S
The AirTAC SAIJ80X325-50-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. This built-in adjustability allows operators to dial in exact retract end positions during commissioning without adding external stops.
This SKU is configured with a SUS304 stainless steel rod (code B) for superior corrosion resistance and includes a magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors. The extruded aluminum barrel incorporates sensor grooves on both sides, and fluid is supplied via PT tapered ports. Because the stroke is 325mm, an external guide is recommended to handle side loads on the 25mm rod.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX325-50S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX325-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 325 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 SAIJ80BX325-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×325 | 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 SAIJ80BX325-50S Is Used
Product Changeovers
Quickly shift the retract end position by up to 50mm when running different product sizes on the same line, avoiding the need to physically swap out cylinders.
Machine Setup Tuning
Fine-tune the 275-325mm travel window during initial commissioning to achieve exact positioning without fabricating custom external stopper blocks.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX325-50S the Right Cylinder?
Choose this 80mm bore when an application requires more thrust than a 63mm cylinder (1559N at 0.5 MPa) but less than a 100mm bore (3927N). The adjustable-stroke design is ideal for product changeovers on a line, letting you shift the end-stop by up to 50mm rather than swapping the entire cylinder for a fixed-stroke SAI model. 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 external rod lock, a pilot-operated check valve, or the AirTAC SAIL/BSAI series.
To match this exact ISO 15552 interchangeable cylinder, specify: 80mm bore, 325mm stroke, 50mm adjustment, PT ports, SUS304 rod, and the -S magnet. It supports a mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Operating speed ranges from 30-800mm/s, and the variable air cushions at both ends help decelerate the load smoothly.
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 SAIJ80BX325-50S FAQ
The rear adjuster screw allows you to shorten the effective stroke by up to 50mm. This means the 325mm nominal stroke can be dialed back to any travel length within a 275-325mm window. The adjuster acts as a physical stop for the retract end and does not lock the load without live air pressure.
At the maximum operating pressure of 0.9 MPa, the push force increases to 4523N.
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