Airtac SAIJ80 Adjustable Cylinder SAIJ80BX300-100
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX300-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 300mm 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
- Stroke300 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 SAIJ80BX300-100
The AirTAC SAIJ80X300-100 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to shorten the effective travel. With a 300 mm nominal stroke and a 100 mm adjustment range, it provides a usable travel window of 200-300 mm.
It features a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threads for its G3/8 connections. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. The rear adjuster acts purely as a mechanical stop to fine-tune the end position during commissioning without requiring external stops, though it does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX300-100 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX300-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 300 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 SAIJ80BX300-100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×300 | 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 SAIJ80BX300-100 Is Used
Variable End-Stop Tuning
Dial in the exact 200-300 mm travel limit during machine commissioning to accommodate different product lengths without physically swapping out the actuator.
Product Changeover Systems
Rapidly adjust the rear stopper on a packaging or sorting line to handle varying package dimensions on the fly, minimizing downtime between production runs.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX300-100 the Right Cylinder?
The 100 mm adjustment range is particularly valuable for machines processing varying product sizes, allowing rapid changeover by dialing in the exact 200-300 mm travel limit rather than swapping cylinders. For any load-holding requirements without continuous air pressure, this cylinder's adjuster will not suffice; consider an AirTAC SAIL or BSAI locking model instead.
Because the 300 mm stroke creates a long unsupported rod overhang, you should use an external guide to prevent side-loading damage, despite the robust 25 mm rod diameter and M20x1.5 thread. When replacing an ISO 15552 cylinder, match the 80 mm bore, 300 mm stroke, 100 mm adjustment, PT G3/8 ports, and the SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, 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 SAIJ80BX300-100 FAQ
If you increase the pressure to 0.9 MPa, the push force reaches 4523 N.
The nominal stroke is 300 mm, but the rear mechanical adjuster allows you to shorten the travel by up to 100 mm. This creates a usable stroke window of 200-300 mm, letting you fine-tune the end position at commissioning without adding external stops.
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