Airtac SAIJ80 Adjustable Cylinder SAIJ80AX650-10S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX650-10S 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 SAIJ80AX650-10S
The AirTAC SAIJ80X650-10-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel down to a 640-650 mm window. Delivering 2513 N of push force at 0.5 MPa, it is built for applications requiring precise end-position calibration without swapping hardware. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
This specific SKU utilizes a SUS420J2 stainless steel rod for superior corrosion resistance and features PT tapered port threads (G3/8). The integrated -S magnet supports position sensing via CMSE reed or DMSE electronic switches. At 650 mm of travel, the 25 mm rod diameter provides rigidity, but an external guide is strongly recommended to manage side loads over this extended length.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX650-10S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX650-10S |
|---|---|
| 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 SAIJ80AX650-10S
| 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 SAIJ80AX650-10S Is Used
End-Stop Calibration
Dial in the exact 640 to 650 mm travel window during machine setup to compensate for mechanical tolerance stack-up without disassembling the actuator.
Product Changeovers
Quickly adjust the retract stop position on a packaging line when switching to a different package size, minimizing downtime between production runs.
Long-Stroke Forming
Apply up to 2513 N of push force at 0.5 MPa for pressing or forming tasks while using the rear screw to limit overtravel on delicate tooling.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX650-10S the Right Cylinder?
Choose this 80 mm bore when your application requires substantial thrust—stepping up from a 63 mm bore jumps the push force from 1559 N to 2513 N at 0.5 MPa. The 10 mm rear adjuster is ideal for dialing in exact end-stops during machine commissioning or product changeovers, offering flexibility that a fixed-stroke SAI cylinder cannot provide. Remember that the adjuster acts only as a travel stop; it will not hold the load without live air pressure. For true load-holding, consider an SAIL or BSAI cylinder.
When replacing an ISO 15552 cylinder, verify the 80 mm bore, 650 mm stroke, 10 mm adjustment range, PT G3/8 ports, and the -S magnet requirement. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR. Because the 650 mm stroke exceeds 300 mm, always pair this cylinder with an external guide to prevent rod binding and premature seal wear.
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 SAIJ80AX650-10S FAQ
At 0.5 MPa it provides 2513 N of push force and 2268 N of pull force. At 0.9 MPa, the push force increases to 4523 N. The operational speed range for this 80 mm bore cylinder is 30-800 mm/s.
A rear adjusting screw acts as a mechanical stop, allowing you to shorten the nominal 650 mm stroke by up to 10 mm, creating a 640-650 mm usable travel window. This stopper only sets the end position and does not lock or hold the load without continuous air pressure.
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