Airtac SAIJ80 Adjustable Cylinder SAIJ80AX280-100S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX280-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 280mm 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
- Stroke280 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX280-100S
The AirTAC SAIJ80X280-100-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 280mm nominal stroke that can be fine-tuned down by up to 100mm, giving you a usable travel window between 180mm and 280mm. This wide adjustment range allows you to dial in exact retract end positions during commissioning without swapping out the cylinder.
Built with a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance, this model includes a magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors. The extruded aluminum barrel provides sensor grooves on both sides, and the G3/8 port ensures efficient airflow for speeds up to 800mm/s.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX280-100S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX280-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 280 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 SAIJ80AX280-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×280 | 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 SAIJ80AX280-100S Is Used
Product Changeover
Quickly reconfigure the retract distance on packaging lines handling different carton sizes using the 180-280mm adjustable window.
Machine Setup
Fine-tune the exact end-of-stroke position during commissioning without machining new spacer blocks or installing external hard stops.
Variable End Stops
Provide a customizable physical stop for assembly presses that need to test or accommodate multiple part heights on the same fixture.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX280-100S the Right Cylinder?
Choose this 80mm bore when an application requires higher thrust than a 63mm cylinder (which provides 1559N push at 0.5 MPa), but does not need the full 3927N output of a 100mm bore. The 100mm adjustment range is particularly valuable on production lines that undergo frequent product-size changeovers, allowing operators to reposition the retract stop quickly instead of adding external mechanical stops. For fixed-position tasks without variation, a standard SAI cylinder is a simpler alternative.
Because the nominal stroke is 280mm, the 25mm rod and M20x1.5 thread provide substantial rigidity, but an external guide should still be used to prevent excessive side-loading on long travels. When specifying an ISO 15552 replacement, match the 80mm bore, 280mm stroke, 100mm adjustment, PT tapered port threads, 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 pilot-operated load holding, consider the SAIL or BSAI series. 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 SAIJ80AX280-100S 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 280mm nominal length, creating a usable travel window of 180-280mm. The adjuster acts as a mechanical stop to set the end position and does not function as a lock to hold the load without air pressure.
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