Airtac SAIJ80 Adjustable Cylinder SAIJ80AX650-10
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX650-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 650mm 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
- Stroke650 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX650-10
The AirTAC SAIJ80X650-10 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 640 to 650 mm usable travel window, letting you dial back the end position by up to 10 mm during commissioning. The 80 mm bore generates 3518 N of push force at 0.7 MPa, making it suitable for heavy-duty positioning tasks.
This unit features a SUS420J2 stainless steel rod for enhanced corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. It supports a mounting set comprising Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR options.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX650-10 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX650-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 650 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 SAIJ80AX650-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×650 | 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 SAIJ80AX650-10 Is Used
Machine Changeover
Dial in the 10 mm stroke adjustment during product size transitions to set new end stops without physically swapping the cylinder.
Long-Stroke Diverting
Use the 650 mm travel to push heavy pallets across a conveyor, fine-tuning the extended position to match guardrail widths.
Heavy Assembly Press
Leverage the 3518 N push force at 0.7 MPa to seat large components, using the rear stopper to tweak the final clamping position.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX650-10 the Right Cylinder?
Select this adjustable-stroke model over a fixed SAI cylinder when your assembly requires precise end-position tuning or product changeover flexibility without adding external stops. If you need less force, the 63 mm bore offers 2182 N at 0.7 MPa; if your application demands more thrust, the 100 mm bore provides 5497 N. To match this ISO 15552 replacement exactly, specify an 80 mm bore, 650 mm stroke, 10 mm adjustment, PT port threads, and no magnet.
Because the nominal stroke is 650 mm, the 25 mm rod and M20x1.5 thread will experience leverage on long unsupported loads; an external guide is recommended to prevent side-load damage. Remember that the rear adjuster is a travel stop, not a lock. For load-holding without live air pressure, consider an AirTAC SAIL, BSAI, or an external rod lock.
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 SAIJ80AX650-10 FAQ
A rear external screw acts as a mechanical stop, allowing you to shorten the 650 mm nominal stroke by up to 10 mm. This creates a 640 to 650 mm usable travel window for fine-tuning the retract end position. The adjuster only sets the travel end and does not lock the load without live air pressure.
At a 0.7 MPa operating pressure, the SAIJ80X650-10 generates 3518 N of push force and 2268 N of pull force. It operates at speeds between 30 and 800 mm/s and uses G3/8 ports.
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