Airtac SAIJ80 Adjustable Cylinder SAIJ80BX650-100S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX650-100S 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 SAIJ80BX650-100S
The AirTAC SAIJ80X650-100-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 provides a usable travel window of 550 to 650mm, letting you dial in the exact retract position without swapping hardware. The integrated -S magnet supports AirTAC CMSE reed and DMSE electronic sensors for precise end-of-stroke detection.
This unit is built with a SUS304 stainless steel rod (code B) for superior corrosion resistance and carries a PT tapered port thread. The extruded aluminum barrel includes sensor grooves on both sides, and the adjustable stopper functions purely as a travel end-stop, meaning it will not hold a load safely without continuous live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX650-100S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX650-100S |
|---|---|
| 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 SAIJ80BX650-100S
| 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 SAIJ80BX650-100S Is Used
Product Changeovers
Quickly shift the retract end-stop by up to 100mm during packaging line format changes, eliminating the need to bolt on external physical stops.
Variable Position Diverters
Fine-tune the actuation point of a diverter arm over the 550-650mm travel window to accommodate different package sizes on the fly.
Long-Stroke Assembly Presses
Leverage the 2513N push force and SUS304 rod to dial in the exact bottoming position during multi-part assembly operations.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX650-100S the Right Cylinder?
Choose this 80mm bore when an application requires more thrust than a 63mm cylinder (which provides 1559N push at 0.5 MPa) but less bulk than a 100mm option. The 100mm adjustment range is ideal for product changeovers on a packaging line, allowing operators to reposition the retract end-stop rapidly instead of installing external physical stops. Because the nominal stroke is 650mm, an external guide is highly recommended to prevent excessive side-loading on the extended rod.
For a direct ISO 15552 replacement match, verify the 80mm bore, 650mm stroke, 100mm adjustment, PT port thread, and the -S magnet requirement. Remember that the rear adjuster only sets the travel end position and decelerates the load alongside the air cushions; it does not function as a lock. If your setup requires true load-holding without live air, consider the AirTAC SAIL or BSAI series instead. SAIJ 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 SAIJ80BX650-100S FAQ
At 0.5 MPa, this 80mm bore cylinder provides 2513N of push force and 2268N of pull force. It operates at a speed range of 30-800 mm/s and features a maximum operating pressure of 1.0 MPa.
The rear adjuster acts as a mechanical stop, allowing you to shorten the effective stroke from the nominal 650mm down to 550mm. This creates a 550-650mm adjustable travel window for fine-tuning the retract position at commissioning.
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