Airtac SAIJ80 Adjustable Cylinder SAIJ80AX900-30
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX900-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 900mm 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
- Stroke900 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX900-30
The AirTAC SAIJ80X900-30 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 2513N of push force at 0.5 MPa. It features a robust 25mm SUS420J2 stainless steel rod and a PT G3/8 tapered port. The integrated rear stopper allows you to dial back the nominal 900mm stroke by up to 30mm, creating an 870-900mm usable travel window for exact end-position tuning.
This adjustable travel eliminates the need to swap cylinders or bolt on external stops during product changeovers. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. While the rear adjuster and variable air cushions safely decelerate the load at the travel end, they act as stops and do not hold the load without live air; for true load-holding, consider the SAIL or BSAI series.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX900-30 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX900-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 900 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 SAIJ80AX900-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×900 | 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 SAIJ80AX900-30 Is Used
Variable End-Stop Diverters
Dial in the exact 870-900mm retraction point on packaging lines to handle different carton sizes without physically swapping the actuator.
Machine Setup & Changeover
Fine-tune the rear stopper during product changeovers to establish new end positions rapidly, minimizing machine downtime.
Long-Stroke Positioning
Leverage the 2513N push force and 900mm travel for large-format material handling, using the adjuster to trim the final 30mm of approach.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX900-30 the Right Cylinder?
Choose this 80mm bore when an application requires more thrust than a 63mm cylinder (which provides 1559N push at 0.5 MPa) but without the bulk of a 100mm unit. The adjustable 870-900mm window is ideal for machines that need variable end-stops or fine-tuning at commissioning, offering flexibility a fixed-stroke SAI cannot match. When specifying a replacement, ensure you match the 900mm stroke, 30mm adjustment, PT G3/8 port, and the desired mounting style.
Because this cylinder features a long 900mm stroke, the 25mm rod and M20x1.5 thread provide substantial support, but an external guide is still recommended to prevent excessive side-loading on the extended rod. Mounting options are limited to the SAIJ subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Operating speed ranges from 30-800 mm/s.
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 SAIJ80AX900-30 FAQ
At 0.5 MPa operating pressure, this 80mm bore cylinder provides 2513N of push force and 2268N of pull force. At 0.7 MPa, the push force increases to 3518N.
The rear adjuster acts as an external stopper that allows you to shorten the effective stroke from the nominal 900mm down to 870mm. This provides a 30mm tuning window at commissioning without needing external stops.
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