Airtac SAIJ80 Adjustable Cylinder SAIJ80AX325-50
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX325-50 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 a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ80 mm
- Stroke325 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX325-50
The AirTAC SAIJ80X325-50 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the travel window from 275 to 325 mm. Built with a SUS420J2 stainless steel rod and PT tapered port threads, it delivers 3518 N of push force at 0.7 MPa. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
Because the adjuster acts as a retract end-stop rather than a locking device, it cannot hold a load without live air pressure. For applications requiring true position holding, consider the SAIL or BSAI series. This 80 mm bore model omits the FB, CA, CB, and CR mounting options, utilizing a focused set of ISO 15552 accessories.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX325-50 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX325-50 |
|---|---|
| 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80AX325-50
| 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 SAIJ80AX325-50 Is Used
Stroke Commissioning
Dial in the exact 275 to 325 mm end-position during machine setup without adding external stopper blocks.
Product Changeover
Quickly adapt the retract distance on a packaging line when handling different sized cartons or materials.
Variable End-Stop
Use the 50 mm rear adjustment screw to fine-tune the travel limit for delicate pressing or clamping tasks.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX325-50 the Right Cylinder?
Choose this 80 mm bore cylinder when your setup requires a 275-325 mm stroke window and substantial thrust. If you need less force, stepping down to a 63 mm bore yields 2182 N at 0.7 MPa, while moving up to a 100 mm bore provides 5497 N. The adjustable stroke is ideal for commissioning fine-tuning and product changeovers without swapping cylinders. When matching this ISO 15552 replacement, specify the 325 mm stroke, 50 mm adjustment, PT G3/8 port, and your preferred mounting bracket from Basic, FA, LB, TC, FTC, TCM1, or TCM2. Given the 325 mm stroke, ensure an external guide supports the rod to prevent excessive side-loading.
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 SAIJ80AX325-50 FAQ
At 0.7 MPa, this 80 mm bore cylinder provides 3518 N of push force and 2268 N of pull force. It operates at speeds between 30 and 800 mm/s.
The rear adjuster screw acts as a mechanical stop to shorten the effective stroke by up to 50 mm, giving a usable travel window of 275 to 325 mm. It decelerates the end position but does not lock the load without live air.
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