Airtac SAIJ80 Adjustable Cylinder SAIJ80AX950-30
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX950-30 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 SAIJ80AX950-30
The AirTAC SAIJ80X950-30 is a double-acting ISO 15552 profile cylinder equipped with a rear mechanical adjuster, allowing you to fine-tune the retract position without adding external stops. The 30 mm adjustment range creates a usable travel window of 920 to 950 mm, making it ideal for dialing in exact end positions during machine commissioning. Delivering 4523 N of push force at 0.9 MPa, it handles substantial loads with precision.
This unit features a SUS420J2 stainless steel rod for enhanced corrosion resistance and uses PT tapered port threads (G3/8) for secure pneumatic sealing. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. It supports a subset of ISO 15552 mounts—Basic, FA, LB, TC, FTC, TCM1, and TCM2—omitting the FB, CA, CB, and CR foot and pivot styles.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX950-30 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX950-30 |
|---|---|
| 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 SAIJ80AX950-30
| 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 SAIJ80AX950-30 Is Used
Product Changeover Lines
Dial in the 920-950 mm travel window during format size changes without replacing the cylinder or re-engineering external stop blocks.
End-Position Tuning
Fine-tune the retract end-stop during machine commissioning to absorb mechanical tolerances and achieve exact positioning.
Long-Stroke Assembly
Leverage the 4523 N push force at 0.9 MPa to move heavy pallets or fixtures over the 950 mm travel distance.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX950-30 the Right Cylinder?
Choose this 80 mm bore when you need higher force than the 63 mm class (2805 N at 0.9 MPa) but want to avoid the bulk of a 100 mm bore (7068 N at 0.9 MPa). An adjustable stroke is selected over a fixed SAI cylinder when a machine requires variable end-stops to accommodate product changeovers without physically swapping the actuator. Because the 950 mm stroke is long, an external guide is recommended to prevent excessive side-loading on the rod and thread.
For drop-in ISO 15552 replacement, verify the 80 mm bore, 950 mm nominal stroke, 30 mm adjustment range, PT G3/8 port, and the specific mounting style. Note that the rear adjuster acts purely as a travel stop and provides no braking force; it cannot hold the load without live air pressure. For fail-safe load holding, consider the SAIL (air-released lock) or BSAI (clamp-lock) series instead.
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 SAIJ80AX950-30 FAQ
At 0.9 MPa operating pressure, this 80 mm bore cylinder provides 4523 N of push force and 4071 N of pull force. At the maximum 1.0 MPa pressure, it delivers up to 513 kgf.
The rear adjuster screw lets you shorten the effective stroke by up to 30 mm, creating a usable travel window of 920 to 950 mm. This allows you to set the exact end-position at commissioning without swapping cylinders, though the adjuster acts only as a stop and does not lock the load without live air.
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