Airtac SAIJ80 Adjustable Cylinder SAIJ80AX550-100S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX550-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 550mm 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
- Stroke550 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX550-100S
The AirTAC SAIJ80X550-100-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a robust 2513N push force at 0.5 MPa and features a 550mm nominal stroke that can be fine-tuned down by up to 100mm, creating a precise 450-550mm usable travel window. This built-in adjustability allows operators to dial in exact retract end positions during commissioning without adding external stops.
This SKU includes a magnet for CMSE and DMSE sensors, offering electronic and reed switch compatibility for position feedback. It features a SUS420J2 stainless steel rod for superior corrosion resistance and uses PT tapered port threads (G3/8). The extruded aluminum barrel includes sensor grooves on both sides, and the rod diameter is 25mm, providing solid resistance against side loads.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX550-100S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX550-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 550 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 SAIJ80AX550-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×550 | 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 SAIJ80AX550-100S Is Used
Variable End-Stop Positioning
Dial in the exact retract distance within the 450-550mm window during machine commissioning to accommodate different product sizes without swapping cylinders.
Product Changeover Systems
Quickly reconfigure the stroke end position on packaging or conveying lines to handle varying package lengths on the fly.
Heavy Payload Actuation
Leverage the 2513N push force to move heavy assemblies while using the rear stopper to fine-tune the final resting position safely.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX550-100S the Right Cylinder?
Choose this 80mm bore cylinder when an application requires substantial pull force (2268N at 0.5 MPa) alongside variable end-stop positioning. If your setup needs less force, stepping down to a 63mm bore provides 1559N push force, but the 80mm bore is preferred for heavier payloads requiring precise mechanical tuning. The adjustable stroke is selected over a fixed SAI cylinder when product changeovers demand varying retract distances, letting you reconfigure the 450-550mm travel window on the fly.
Because the nominal stroke is 550mm, an external guide is recommended to prevent excessive side-loading on the 25mm rod. For dimensionally interchangeable ISO 15552 replacements, match the 80mm bore, 550mm stroke, 100mm adjustment, PT port thread, and the -S magnet requirement. Note that the rear adjuster acts only as a travel stop and does not hold the load without live air; for true load-holding, consider an AirTAC SAIL or BSAI cylinder. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and 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 SAIJ80AX550-100S 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 screw allows you to shorten the effective stroke by up to 100mm from the 550mm nominal length, providing a usable travel window of 450-550mm. The adjuster acts as a mechanical stop and does not lock the load without continuous air pressure.
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