Airtac SAIJ80 Adjustable Cylinder SAIJ80AX290-100
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX290-100 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 a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ80 mm
- Stroke290 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX290-100
The AirTAC SAIJ80X290-100 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that permits the effective travel to be dialed back by up to 100 mm. This yields a usable stroke window of 190 to 290 mm, allowing exact end-position calibration during commissioning without external stops. The 80 mm bore generates 4523 N of push force at 0.9 MPa, placing it in a heavy-duty force class for demanding operations.
This variant uses a SUS420J2 stainless steel rod (option A) for superior corrosion resistance compared to standard carbon steel. It features PT tapered port threads (G3/8) and dual-side sensor grooves on the extruded aluminum barrel. The rear adjuster acts purely as a travel stop to set deceleration alongside the air cushions, not as a locking mechanism.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX290-100 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX290-100 |
|---|---|
| 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 | 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 SAIJ80AX290-100
| 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 SAIJ80AX290-100 Is Used
Product Changeovers
Dial in the 190-290 mm travel window during format size shifts on a packaging line, bypassing the need to swap cylinders for different carton lengths.
End-Stop Calibration
Fine-tune the retract end-position during machine commissioning to achieve exact material registration without fabricating custom external stopper blocks.
Heavy-Duty Forming
Leverage the 4523 N push force at 0.9 MPa for pressing or holding tasks where the end-position needs occasional micro-adjustments to accommodate tooling wear.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX290-100 the Right Cylinder?
Choose this 80 mm bore when a 50 mm bore (providing 1767 N push at 0.9 MPa) is insufficient for your load, but a 100 mm bore (7068 N) would be excessive overkill. The 100 mm adjustment range is ideal for machinery handling frequent product-size changeovers, as it allows operators to redefine the retract end-point on the fly rather than physically swapping out a fixed-stroke SAI cylinder.
For any application using a 290 mm stroke, the M20x1.5 rod thread and 25 mm rod diameter provide robust resistance to side loads, though an external guide is still recommended for unsupported loads. If your process requires the load to be held in place without continuous live air pressure, this cylinder's adjuster will not suffice; you must integrate an external pilot-operated check valve or select an AirTAC SAIL or BSAI series cylinder instead. Dimensionally interchangeable per ISO 15552, this model uses PT ports, omits FB/CA/CB/CR mountings, and ships without a magnet.
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 SAIJ80AX290-100 FAQ
At an operating pressure of 0.9 MPa, this 80 mm bore cylinder generates 4523 N of push force and 2268 N of pull force. It operates at speeds between 30 and 800 mm/s.
A rear external screw acts as a stopper, allowing you to shorten the nominal 290 mm stroke by up to 100 mm. This creates an adjustable travel window of 190 to 290 mm for fine-tuning end positions. The adjuster is a stop, not a lock, and cannot hold the load without live air pressure.
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