Airtac SAIJ80 Adjustable Cylinder SAIJ80AX650-75
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX650-75 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 SAIJ80AX650-75
The AirTAC SAIJ80X650-75 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 575 to 650 mm, allowing you to dial back the nominal stroke by up to 75 mm during commissioning. Delivering 2513 N of push force at 0.5 MPa, it handles substantial workloads with precision.
This model uses an SUS420J2 stainless steel rod for improved corrosion resistance and features PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement. It operates at speeds of 30-800 mm/s and uses adjustable air cushions at both ends to decelerate the load smoothly.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX650-75 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX650-75 |
|---|---|
| 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 SAIJ80AX650-75
| 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 SAIJ80AX650-75 Is Used
Machine Changeover
Fine-tune the 575-650 mm retract position during product size changes without swapping the cylinder or adding external stops.
Variable End-Stop Positioning
Set precise retraction limits on long-stroke conveyor sorting or push-off mechanisms where the exact end point varies by batch.
Long-Stroke Assembly Pressing
Apply 2513 N of force at 0.5 MPa for long-travel pressing tasks, using the rear screw to dial in the final clamping position.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX650-75 the Right Cylinder?
Choose this 80 mm bore when you need higher thrust than a 63 mm cylinder (which provides 1559 N push at 0.5 MPa) but want to avoid the bulk of a 100 mm unit. The adjustable stroke is perfect for product changeovers or variable end-stops, eliminating the need to swap cylinders or bolt on external stops. At 650 mm, the stroke is long, so an external guide is recommended to prevent rod sag and side-load wear.
For load-holding applications, note that the rear adjuster and air cushions act only as travel stops and deceleration devices—they do not lock the load without live air. For dead-stop holding, consider an AirTAC SAIL or BSAI cylinder. This SAIJ model is dimensionally interchangeable per ISO 15552 and supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts.
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 SAIJ80AX650-75 FAQ
At 0.5 MPa operating pressure, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. It can deliver up to 4523 N of push force at 0.9 MPa.
The rear adjuster screw acts as a mechanical stop that lets you trim the effective stroke back by up to 75 mm, creating a 575-650 mm usable travel window. It sets the end position but does not lock the load without live air.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAIJ80 Adjustable Cylinder SAIJ80AX650-75
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.