Airtac SAIJ80 Adjustable Cylinder SAIJ80AX500-75S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX500-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 500mm 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
- Stroke500 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX500-75S
The AirTAC SAIJ80X500-75-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 0.5MPa, making it well-suited for heavy-duty positioning. By turning the external stopper screw, you can trim the effective travel back by up to 75mm, creating a precise 425-500mm usable stroke window without changing the physical cylinder.
This specific SKU features an SUS420J2 stainless steel rod for superior corrosion resistance and includes a magnet (-S) for direct compatibility with AirTAC CMSE reed and DMSE electronic sensors. The extruded aluminum barrel includes sensor grooves on both sides, and the PT tapered port threads ensure a tight pneumatic seal for the G3/8 air supply.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX500-75S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX500-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 500 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 SAIJ80AX500-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×500 | 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 SAIJ80AX500-75S Is Used
Product Changeover
Dial in the 425-500mm stroke window during format changeovers on packaging lines, using the rear screw to set new end positions without swapping hardware.
Heavy-Duty Positioning
Leverage the 2513N push force at 0.5MPa to move heavy pallets or fixtures, relying on the external adjuster to fine-tune the final resting coordinate.
Variable End Stops
Implement adaptable diverters on material handling conveyors where the physical stopping point must be adjusted on the fly for different package lengths.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX500-75S the Right Cylinder?
Choose this 80mm bore when a 50mm cylinder (offering 982N push at 0.5MPa) lacks the necessary thrust, but before stepping up to a 100mm bore (3927N) which demands more mounting space and air volume. The adjustable 425-500mm window is ideal for production lines that require frequent product-size changeovers, allowing operators to fine-tune the end position at commissioning rather than machining custom external stops.
Because the nominal stroke is 500mm, the M20x1.5 rod should be guided externally to prevent excessive side-loading and premature seal wear. Note that the rear adjuster acts only as a travel stop to set deceleration alongside the air cushions; it does not hold the load without live air. For true load-holding without pneumatic pressure, consider an AirTAC SAIL or BSAI cylinder. This profile cylinder uses the standard ISO 15552 mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR mounts.
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 SAIJ80AX500-75S FAQ
At a 0.5MPa operating pressure, this 80mm bore cylinder provides 2513N of push force and 2268N of pull force. At 0.7MPa, the push force increases to 3518N.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 500mm nominal stroke by up to 75mm. This creates a usable travel window of 425-500mm for precise end-position tuning at commissioning.
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