Airtac SAIJ80 Adjustable Cylinder SAIJ80BX325-30S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX325-30S 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 SAIJ80BX325-30S
The AirTAC SAIJ80X325-30-S is a double-acting ISO 15552 profile cylinder with a rear stroke adjuster, letting you dial back the 325 mm travel by up to 30 mm for a usable 295-325 mm window. It delivers 2513 N of pull force at 0.5 MPa and pushes 3518 N at 0.7 MPa, matching the standard SAI force class for heavy conveying. The barrel is extruded aluminum with sensor grooves on both sides, and the -S magnet pairs directly with AirTAC CMSE reed and DMSE electronic switches.
This SKU uses a SUS304 stainless steel rod for corrosion resistance and carries a PT tapered port thread. The rear adjuster acts purely as a travel stop to fine-tune end positions at commissioning, meaning it does not hold the load without live air pressure. For load-holding without continuous air, select the SAIL or BSAI series instead.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX325-30S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX325-30S |
|---|---|
| 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 SAIJ80BX325-30S
| 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 SAIJ80BX325-30S Is Used
Machine Changeover
Dial in the 295-325 mm travel window during product size transitions without physically swapping cylinders or adding external stops.
Variable End Stops
Set precise retract positions for different package lengths on a heavy conveyor line handling up to 3518 N at 0.7 MPa.
Commissioning Tuning
Fine-tune the final end position during machine setup using the rear adjuster, avoiding mechanical binding on long 325 mm strokes.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX325-30S the Right Cylinder?
Choose this adjustable-stroke cylinder when you need variable end-stops for product changeovers rather than swapping a fixed-stroke SAI cylinder. If your application requires less thrust, step down to the 63 mm bore (1402 N pull at 0.5 MPa); if you need more, the 100 mm bore offers 3681 N pull.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 325 mm stroke, 30 mm adjustment, PT port, and -S magnet. Because the 325 mm stroke is relatively long, the 25 mm rod diameter and M20x1.5 rod thread handle significant side loads, but an external guide is still recommended for unsupported loads. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ80BX325-30S FAQ
At 0.7 MPa, the push force increases to 3518 N.
The rear adjuster acts as a stop that shortens the 325 mm nominal stroke by up to 30 mm, giving a usable travel window of 295-325 mm for fine-tuning at commissioning.
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