Airtac SAIJ80 Adjustable Cylinder SAIJ80X210-100
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X210-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 210mm 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
- Stroke210 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X210-100
The AirTAC SAIJ80X210-100 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a substantial 2513N of push force at 0.5MPa and utilizes a PT G3/8 port. By turning the rear screw, you can trim the nominal 210mm stroke back by up to 100mm, creating a precise 110-210mm usable travel window without swapping out the unit.
This 80mm bore actuator features a robust 25mm carbon steel rod with an M20x1.5 thread, offering excellent resistance against side loads. It includes adjustable air cushions at both ends to decelerate heavy masses smoothly. Remember that the rear adjuster acts purely as a mechanical stop to set the end position, not as a lock to hold the load without continuous air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X210-100 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X210-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 210 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 SAIJ80X210-100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×210 | 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 SAIJ80X210-100 Is Used
Variable End-Stop Tuning
Dial in the precise 110-210mm end position during machine commissioning to accommodate different product lengths without installing secondary external stops.
Product Size Changeover
Quickly adjust the rear mechanical stop on a packaging line when switching between different package dimensions, minimizing downtime between production runs.
Heavy Load Positioning
Leverage the 2513N push force at 0.5MPa to move heavy fixtures into place while fine-tuning the final resting position via the rear adjustment screw.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X210-100 the Right Cylinder?
Choose this 80mm bore when an application demands higher thrust than a 63mm cylinder (which provides 1559N push at 0.5MPa) but has space constraints preventing a 100mm bore. The 100mm adjustment range is ideal for machines processing varying product sizes, allowing operators to dial in the exact end-stop during changeovers instead of adding external physical stops. For load-holding requirements without live air pressure, this cylinder is insufficient; consider an AirTAC SAIL or BSAI locking cylinder instead.
When replacing an ISO 15552 cylinder, match the 80mm bore, 210mm stroke, 100mm adjustment, PT G3/8 port, and mounting style. The SAIJ series supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, deliberately omitting FB, CA, CB, and CR brackets. Because the 210mm stroke is relatively long, ensure adequate external guiding to prevent rod binding under offset loads.
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 SAIJ80X210-100 FAQ
At 0.5MPa operating pressure, the 80mm bore generates 2513N of push force and 2268N of pull force. At 0.7MPa, the push force increases to 3518N.
The rear adjuster screw allows you to shorten the effective travel from the nominal 210mm down to as little as 110mm, giving a 110-210mm usable window. It functions as a mechanical stop to set the end position and does not lock the load without air pressure.
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