Airtac SAIJ80 Adjustable Cylinder SAIJ80AX800-30S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX800-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 800mm 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
- Stroke800 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX800-30S
The AirTAC SAIJ80X800-30-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 25mm piston rod with an M20x1.5 thread. Because of the 30mm adjustment code, you can fine-tune the effective travel window down from the nominal 800mm to a precise 770mm limit during machine commissioning.
This variant includes a magnet for electronic DMSE or reed CMSE sensors and uses SUS420J2 stainless steel for the rod. It operates at speeds between 30-800mm/s and provides variable air cushions at both ends to decelerate the load smoothly. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX800-30S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX800-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 800 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 SAIJ80AX800-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×800 | 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 SAIJ80AX800-30S Is Used
Product Changeover Stops
Dial in the 770-800mm travel window on packaging lines to instantly adjust pusher distances for different carton sizes without changing the cylinder.
Long-Stroke Assembly Press
Utilizes the 2513N push force at 0.5 MPa to drive long-travel insertion tasks, with the rear screw allowing precise end-position tuning during setup.
Automated Material Handling
Moves loads along an 800mm path at speeds up to 800mm/s, relying on the double-sided sensor grooves and DMSE/CMSE switches for position feedback.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX800-30S the Right Cylinder?
Choose this 80mm bore when an application requires higher thrust than the 63mm bore (1559N at 0.5 MPa) but does not need the full power of the 100mm option (3927N at 0.5 MPa). The adjustable stroke is selected over a fixed SAI cylinder when you need variable end-stops to accommodate product size changeovers without physically swapping the actuator. The rear adjuster acts purely as a travel stop and does not hold the load without live air; for true load-holding without pressure, consider the SAIL or BSAI series.
With an 800mm stroke, the extended rod is highly susceptible to side-loading, so an external guide rail is required to prevent cylinder damage. This SAIJ model is dimensionally interchangeable with ISO 15552 cylinders. The exact replacement configuration is an 80mm bore, 800mm stroke, 30mm adjustment, PT tapered ports, Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting, and a magnet for sensors.
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 SAIJ80AX800-30S FAQ
At 0.5 MPa operating pressure, this 80mm bore cylinder provides 2513N of push force and 2268N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 513 kgf.
The rear adjuster screw allows you to mechanically shorten the effective stroke from the nominal 800mm down to a minimum of 770mm. This creates a 30mm travel window for fine-tuning the end position without adding external stops.
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