Airtac SAIJ80 Adjustable Cylinder SAIJ80BX290-20
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX290-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 290mm 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
- Stroke290 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 SAIJ80BX290-20
The AirTAC SAIJ80X290-20 is a double-acting, double-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. This fine-tuning capability at commissioning eliminates the need to swap out the entire cylinder or bolt on external stops when finalizing machine positions.
Built with a SUS304 stainless steel rod (code B) for superior corrosion resistance, this 80 mm bore unit uses PT tapered port threads and includes variable air cushions at both ends. The extruded aluminum barrel features sensor grooves on both sides, ready to accept AirTAC CMSE reed or DMSE electronic sensors if position detection is added later.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX290-20 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX290-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 290 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 SAIJ80BX290-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×290 | 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 SAIJ80BX290-20 Is Used
Machine Changeover
Quickly adjust the retract end-stop by up to 20 mm during product size changes on a packaging line without disassembling the cylinder mounting.
End-Position Tuning
Fine-tune the final resting position of a press or clamping fixture at commissioning to compensate for mechanical tolerances in the machine frame.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX290-20 the Right Cylinder?
If you need less force, stepping down to a 63 mm bore yields 1559N at 0.5 MPa; if you require significantly more thrust, the 100 mm bore provides 3927N at 0.5 MPa. Because the 290 mm stroke is relatively long, ensure you provide an external guide to support the load and prevent excessive side-loading on the 25 mm rod.
The rear adjustment screw acts strictly as a travel stop to set the retract end position, not as a locking device. It cannot hold the load without live air pressure. If your application demands true load-holding in the event of air loss, consider the SAIL (air-released lock) or BSAI (clamp-lock) series instead. For ISO 15552 interchangeability, match the 80 mm bore, 290 mm stroke, PT G3/8 port, 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 SAIJ80BX290-20 FAQ
At the maximum 1.0 MPa pressure, it delivers up to 513 kgf of push thrust.
The rear adjuster screw lets you shorten the 290 mm nominal stroke by up to 20 mm, creating a usable travel window of 270 to 290 mm. This allows you to set the exact retract end-position during setup without needing an external mechanical stop.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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