Airtac SAIJ80 Adjustable Cylinder SAIJ80BX325-100S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX325-100S 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 SAIJ80BX325-100S
The AirTAC SAIJ80X325-100-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It features a 325 mm nominal stroke that can be dialed back by up to 100 mm, providing a usable travel window of 225-325 mm. This built-in adjustability allows you to fine-tune the retract end position during commissioning or product changeovers without swapping the cylinder or adding external stops. Delivering 2513 N of pull force at 0.5 MPa, it handles demanding positioning tasks.
This SKU is built with a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for position sensing. The extruded aluminum barrel incorporates sensor grooves on both sides, supporting AirTAC CMSE reed and DMSE electronic solid-state switches. It uses a G3/8 port and relies on variable air cushions at both ends to decelerate the load smoothly.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX325-100S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX325-100S |
|---|---|
| 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 SAIJ80BX325-100S
| 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 SAIJ80BX325-100S Is Used
Variable End-Stop Machining
Dial in the exact 225-325 mm retract position for machining operations that handle multiple part lengths on the same fixture.
Product Changeover Diverters
Quickly reconfigure conveyor sorting gates by adjusting the rear stopper screw rather than physically swapping out cylinders.
Assembly Line Setup
Fine-tune the stroke during initial commissioning to achieve precise pressing or clamping depths without external mechanical stops.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX325-100S the Right Cylinder?
If your setup needs less force, stepping down to a 63 mm bore yields 1402 N of pull force at 0.5 MPa, whereas moving up to a 100 mm bore provides 3681 N of pull. The adjustable stroke is ideal for machines that process varying product sizes, allowing the retract stop to be reconfigured on the fly. Because the 325 mm stroke is relatively long, ensure adequate external guiding to prevent excessive side-loading on the SUS304 rod.
When specifying a replacement, verify the 80 mm bore, 325 mm stroke, 100 mm adjustment range, PT tapered port threads, and the -S magnet option. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, but omits FB, CA, CB, and CR configurations. Remember that the rear adjuster and air cushions act only as travel stops and deceleration devices; they do not hold the load without live air. For true load-holding without pneumatic pressure, consider an AirTAC SAIL pneumatic lock, a BSAI clamp-lock cylinder, or an external rod lock.
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 SAIJ80BX325-100S 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 100 mm from the 325 mm nominal length, creating a usable travel window of 225-325 mm. The adjuster acts as a mechanical stop to set the end position and does not lock the load without live air pressure.
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