Airtac SAIJ80 Adjustable Cylinder SAIJ80BX300-20
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX300-20 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 SAIJ80BX300-20
The AirTAC SAIJ80X300-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 280-300mm usable travel window. The extruded aluminum barrel includes sensor grooves on both sides, and the SUS304 stainless steel rod provides excellent corrosion resistance.
This model uses a PT G3/8 port and M20x1.5 rod thread. The rear stopper allows precise end-position tuning during commissioning without external stops, but it acts only as a travel stop and does not hold the load without live air.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX300-20 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX300-20 |
|---|---|
| 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 SAIJ80BX300-20
| 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 SAIJ80BX300-20 Is Used
Product Changeover
Dial in the 280-300mm travel window during format changes on packaging lines without physically replacing the cylinder.
Variable End Stops
Set precise retract positions for diverters or gates handling varied package sizes on a conveyor system.
Machine Setup
Fine-tune the final end position during initial commissioning to achieve perfect alignment without adding external stops.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX300-20 the Right Cylinder?
The 20mm adjustment range is ideal for product changeovers, letting you fine-tune the retract position on the fly instead of swapping a fixed-stroke SAI cylinder. For exact ISO 15552 replacement matching, verify the 300mm stroke, 20mm adjust code, PT G3/8 port, and mounting choice (Basic, FA, LB, TC, FTC, TCM1, TCM2).
Because the 300mm stroke is relatively long, the M20x1.5 rod needs external guide support to prevent excessive side-loading. If the machine requires true load-holding without continuous air pressure, use an external rod lock or pilot-operated check valve, as the adjuster and air cushions only decelerate travel.
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 SAIJ80BX300-20 FAQ
At 0.5 MPa the push force is 2513N.
The rear adjuster screw lets you shorten the nominal 300mm stroke by up to 20mm, creating a 280-300mm travel window. It functions as a mechanical stop for end-position tuning, not a lock.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAIJ80 Adjustable Cylinder SAIJ80BX300-20
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.