Airtac SAIJ80 Adjustable Cylinder SAIJ80AX50-30S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX50-30S 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 SAIJ80AX50-30S
The AirTAC SAIJ80X50-30-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers 2513N of push force at 0.5 MPa and utilizes a PT tapered G3/8 port. The integrated -S magnet pairs directly with CMSE reed and DMSE electronic sensors mounted in the dual-side barrel grooves.
With a 50mm nominal stroke and a 30mm adjustment code, this model provides a usable travel window of 20-50mm. This built-in stopper allows you to fine-tune end positions during commissioning without adding external stops. The 25mm SUS420J2 stainless steel rod (option A) handles high side loads, while the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) omits FB, CA, CB, and CR brackets.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX50-30S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX50-30S |
|---|---|
| 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 SAIJ80AX50-30S
| 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 SAIJ80AX50-30S Is Used
Machine Setup Tuning
Dial in the exact 20-50mm travel window during commissioning to perfectly time machine strokes without external stopper hardware.
Product Changeover
Quickly adapt the end-stop position on a packaging line when handling different carton sizes, using the 30mm adjustment range.
Assembly Positioning
Leverage the 2513N push force and SUS420J2 rod to position heavy sub-assemblies, relying on the rear screw to set the precise retract point.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX50-30S the Right Cylinder?
Choose this 80mm bore when an application requires 2513N of push force at 0.5 MPa, which is a step up from the 50mm bore's 982N output. The 30mm adjustment range is highly valuable for product-size changeovers on a line, letting you dial in the exact 20-50mm travel window without physically swapping the cylinder for a shorter fixed-stroke SAI unit.
Remember that the rear adjuster functions purely as a travel stop and does not hold the load without live air pressure. For true load-holding requirements, consider the SAIL air-released lock or BSAI clamp-lock cylinders. This unit operates at speeds of 30-800mm/s and is dimensionally interchangeable per ISO 15552 mounting interfaces.
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 SAIJ80AX50-30S FAQ
At 0.5 MPa operating pressure, this 80mm bore cylinder provides 2513N of push force and 2268N of pull force. It can reach a maximum push force of 4523N at 0.9 MPa.
The rear adjuster acts as a mechanical stop that lets you trim the 50mm nominal stroke back by up to 30mm, creating a usable travel window of 20-50mm. It only sets the travel end and does not lock the load without live air.
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