Airtac SAIJ80 Adjustable Cylinder SAIJ80AX900-50
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX900-50 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 SAIJ80AX900-50
The AirTAC SAIJ80X900-50 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 900 mm travel by up to 50 mm. This creates a precise 850-900 mm usable window, enabling exact end-position tuning at commissioning without swapping out the physical actuator. It delivers a robust 2513 N push force at 0.5 MPa, making it well-suited for heavy positioning tasks.
This unit features a SUS420J2 stainless steel rod for superior corrosion resistance and carries PT tapered port threads (G3/8). The extruded aluminum barrel includes sensor grooves on both sides. Because the 900 mm stroke is long, the 25 mm rod diameter should be paired with an external guide to prevent excessive side-loading and premature seal wear.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX900-50 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX900-50 |
|---|---|
| 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 SAIJ80AX900-50
| 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 SAIJ80AX900-50 Is Used
Product Size Changeovers
Quickly adapt machinery for different product lengths by dialing the rear adjuster across the 850-900 mm window, eliminating the need to physically swap cylinders during line changeovers.
Long-Stroke Diverting
Handles heavy conveyor routing tasks where a 2513 N push force is needed to move pallets, with the adjuster providing fine-tuning for the exact divert position.
Commissioning Calibration
Perfect for dialing in the precise end-of-stroke position during initial machine setup, allowing operators to compensate for mechanical tolerances on the fly.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX900-50 the Right Cylinder?
Choose this 80 mm bore actuator when an application demands high thrust (2513 N at 0.5 MPa) alongside variable end-stops; if less force is required, stepping down to a 63 mm bore yields 1559 N. The adjustable stroke is ideal for product changeovers on a line, as the rear screw fine-tunes the travel limit without adding external stops. For fixed travel without commissioning adjustments, a standard SAI cylinder is sufficient.
When specifying an ISO 15552 replacement, match the 80 mm bore, 900 mm stroke, 50 mm adjustment, PT port thread, and desired mounting accessory. The SAIJ series supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, omitting FB, CA, CB, and CR options. Note that the rear adjuster acts only as a travel stop and does not hold the load without live air; for true pneumatic locking, consider the SAIL or BSAI series.
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 SAIJ80AX900-50 FAQ
At 0.5 MPa operating pressure, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. At 0.7 MPa, the push force increases to 3518 N.
The rear adjuster screw lets you shorten the effective travel from the 900 mm nominal stroke by up to 50 mm, providing an 850-900 mm usable window. This stopper fine-tunes the end position but does not lock the load without continuous air pressure.
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