Airtac SAIJ80 Adjustable Cylinder SAIJ80AX50-50S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX50-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 50mm 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
- Stroke50 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX50-50S
The AirTAC SAIJ80X50-50-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 0-50 mm, allowing you to dial in the exact end position during commissioning without adding external stops. In this A-version configuration, the rod is made of SUS420J2 stainless steel for improved corrosion resistance.
Delivering 2513 N of push force and 2268 N of pull force at 0.5 MPa, this 80 mm bore cylinder handles robust actuation tasks. It includes a -S magnet for position sensing, working seamlessly with AirTAC CMSE reed and DMSE electronic solid-state switches mounted in the dual-side sensor grooves.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX50-50S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX50-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 50 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 SAIJ80AX50-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×50 | 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 SAIJ80AX50-50S Is Used
Variable End-Stop Tuning
Dial in the exact 0-50 mm travel distance during machine setup to accommodate varying material thicknesses without changing the cylinder.
Product Changeover
Quickly adjust the rear stopper when switching the production line to a different product size, minimizing downtime between runs.
Robust Actuation
Leverage the 2513 N push force of the 80 mm bore for heavy pressing or lifting tasks while fine-tuning the final position.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX50-50S the Right Cylinder?
Choose this 80 mm bore if your application requires more force than the 63 mm version (1559 N push at 0.5 MPa) but you want to avoid stepping up to the heavier 100 mm class. The 50 mm adjustment range is ideal for product changeovers on a line where the required end-stop varies significantly, replacing the need to physically swap out a fixed-stroke SAI cylinder.
For load-holding without live air pressure, note that the rear adjuster on this SAIJ acts purely as a travel stop, not a lock or brake. You would need an SAIL or BSAI cylinder, or an external pilot-operated check valve, to hold a load safely. To match this ISO 15552 interchangeable cylinder, specify: 80 mm bore, 50 mm nominal stroke, 50 mm adjustment, PT tapered port, and the -S magnet.
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 SAIJ80AX50-50S FAQ
At 0.5 MPa operating pressure, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. At the maximum 1.0 MPa pressure, it delivers 4523 N of push force.
The rear adjuster acts as a mechanical stop that lets you shorten the effective stroke from 50 mm down to 0 mm. It fine-tunes the retract end position at commissioning but does not lock or hold the load without continuous air pressure.
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