Airtac SAIJ80 Adjustable Cylinder SAIJ80AX300-30S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX300-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 300mm 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
- Stroke300 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX300-30S
The AirTAC SAIJ80X300-30-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 300mm nominal stroke that can be fine-tuned down by up to 30mm, providing a precise 270-300mm usable travel window. This built-in adjustability allows you to dial in the retract end-position during commissioning without swapping hardware or adding external stops.
This SKU includes a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and is pre-fitted with a magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors. The extruded aluminum barrel incorporates sensor grooves on both sides, and the adjustable stopper works alongside the standard 36mm air cushions to decelerate the load at the end of travel.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX300-30S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX300-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 300 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 SAIJ80AX300-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×300 | 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 SAIJ80AX300-30S Is Used
Product Changeover
Quickly adjust the 270-300mm travel window to accommodate different carton lengths on a packaging line without changing the cylinder.
Machine Setup
Fine-tune the retract end-position during initial commissioning to achieve precise mechanical alignment without external shims.
Variable End Stops
Dial in the exact stopping point for diverter arms on a conveyor system, relying on the 2513N thrust to move heavy loads.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX300-30S the Right Cylinder?
Choose this 80mm bore when an application requires roughly 2500N of thrust at 0.5 MPa, stepping up from a 63mm bore that provides 1559N. The adjustable 270-300mm window is perfect for packaging lines or fixtures needing rapid product-size changeovers, replacing the need for fixed-stroke SAI cylinders when end-stop flexibility is critical. Because the nominal stroke is 300mm, an external guide should be used to support the load and prevent excessive side-loading on the 25mm rod.
When specifying a replacement, ensure you match the 80mm bore, 300mm stroke, 30mm adjustment range, PT tapered port threads, and the -S magnet option. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Note that the rear adjuster is a travel stop, not a lock; for load-holding without live air pressure, consider an AirTAC SAIL or BSAI cylinder.
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 SAIJ80AX300-30S FAQ
At a 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 30mm, creating a 270-300mm usable travel window. It acts as a mechanical stop to set the end position and does not lock the load without live air.
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