Airtac SAIJ80 Adjustable Cylinder SAIJ80AX950-75S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX950-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 950mm 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
- Stroke950 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX950-75S
The AirTAC SAIJ80X950-75-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 0.5 MPa and features a 25mm piston rod with an M20x1.5 thread. By turning the external rear stopper screw, you can fine-tune the effective travel anywhere within an 875-950mm window, providing precise end-position calibration without adding bulky external stops.
This specific SKU includes a SUS420J2 stainless steel rod (option A) for improved corrosion resistance and comes factory-fitted with a magnet (-S) for seamless compatibility with AirTAC CMSE reed and DMSE electronic solid-state sensors. The extruded aluminum barrel incorporates sensor grooves on both sides, and the cylinder relies on variable air cushions at both ends to decelerate the load over its 950mm run.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX950-75S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX950-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 950 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 SAIJ80AX950-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×950 | 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 SAIJ80AX950-75S Is Used
Variable End-Stop Machining
Dial in the exact 875-950mm feed length on a machining station during product changeover without swapping cylinders.
Adjustable Diverter Position
Fine-tune the retract distance of a conveyor sorting gate to accommodate varying package sizes on the fly.
Commissioning Stroke Tuning
Use the 75mm rear adjustment window to perfectly phase the end-of-stroke position with machine sensors during initial setup.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX950-75S the Right Cylinder?
Choose this 80mm bore variant when an application requires higher thrust than a 63mm cylinder (which provides 1559N at 0.5 MPa) but does not need the full 3927N push force of a 100mm unit. The adjustable 875-950mm travel window is ideal for machine setups requiring exact end-position tuning during commissioning or product changeover, replacing the need to swap out a fixed-stroke SAI cylinder.
Because the nominal stroke is 950mm, an external guide is strongly recommended to prevent excessive side-loading on the extended rod. Remember that the rear adjuster functions strictly as a travel stop and the air cushions only manage deceleration; neither will hold a load without continuous air pressure. For load-holding requirements, consider the SAIL or BSAI series. This model uses a PT tapered port thread and is dimensionally interchangeable per ISO 15552.
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 SAIJ80AX950-75S 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 delivers up to 513 kgf.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective stroke from 950mm down to as little as 875mm. This allows precise end-position tuning during commissioning without changing the cylinder.
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