Airtac SAIJ80 Adjustable Cylinder SAIJ80AX650-100
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX650-100 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 SAIJ80AX650-100
The AirTAC SAIJ80X650-100 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a robust 2513N pull force at 0.5 MPa, featuring a SUS420J2 stainless steel rod for enhanced corrosion resistance. By turning the rear stopper screw, you achieve a usable travel window of 550 to 650 mm, allowing precise end-position tuning without swapping hardware.
This bore features a 25mm rod and M20x1.5 thread, which handles side loads well, though a 650mm stroke still requires an external guide to prevent rod bending. The mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options. It uses PT tapered ports (G3/8) and operates at speeds of 30-800 mm/s with adjustable air cushions at both ends.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX650-100 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX650-100 |
|---|---|
| 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 SAIJ80AX650-100
| 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 SAIJ80AX650-100 Is Used
Variable End-Stop Tuning
Dial in the exact 550-650mm retraction point during machine commissioning to accommodate different material lengths without adding external stopper blocks.
Product Size Changeover
Quickly adjust the stroke on packaging lines when switching between box sizes, using the 100mm rear screw to set new reject or sorting positions.
Long-Stroke Assembly
Leverage the 2513N pull force for pressing or joining tasks where the final bottoming position requires fine-tuning across multiple production batches.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX650-100 the Right Cylinder?
Choose this 80mm bore when a 50mm bore (825N pull at 0.5 MPa) lacks the thrust for your load, but a 100mm bore (3681N pull) is physically oversized. The 100mm adjustment range is ideal for machines processing varying product sizes, letting you dial in the exact 550-650mm travel during changeovers instead of installing fixed SAI cylinders of different lengths.
Because the rear adjuster acts only as a mechanical stop and the air cushions manage deceleration, neither will hold a load without live air pressure. For dead-load holding, integrate an external pilot-operated check valve or select a SAIL (air-released lock) cylinder. To match this ISO 15552 interchangeable cylinder, specify: 80mm bore, 650mm stroke, 100mm adjust, PT G3/8 port, required mounting, and no 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 SAIJ80AX650-100 FAQ
At 0.5 MPa operating pressure, this 80mm bore cylinder provides 2513N of push force and 2268N of pull force. At a maximum 1.0 MPa, it can deliver up to 513 kgf.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective stroke from its 650mm nominal length down to 550mm. It sets the travel end position but does not lock the load without continuous air pressure.
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