Airtac SAIJ80 Adjustable Cylinder SAIJ80AX650-100S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX650-100S 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 SAIJ80AX650-100S
The AirTAC SAIJ80X650-100-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It features an 80mm bore and a 650mm nominal stroke that can be dialed back by up to 100mm, yielding a precise 550-650mm usable travel window for product changeovers. Delivering 2513N of push force at 0.5MPa, it handles substantial loads with ease.
This variant includes an SUS420J2 stainless steel rod (code A) for superior corrosion resistance and a magnet (-S) for direct compatibility with CMSE reed and DMSE electronic sensors. The extruded aluminum barrel incorporates sensor grooves on both sides, and the rear adjuster functions strictly as a mechanical stop to fine-tune the end position without holding the load pneumatically.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX650-100S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX650-100S |
|---|---|
| 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 SAIJ80AX650-100S
| 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 SAIJ80AX650-100S Is Used
Variable End-Stop Tuning
Dial in the exact retract position within the 550-650mm window during machine commissioning to accommodate different material lengths without mechanical rework.
Product Changeover
Quickly adjust the stroke by up to 100mm on packaging or conveying lines when switching between different box sizes or product profiles.
Long-Stroke Positioning
Leverage the 2513N push force at 0.5MPa to move heavy pallets or fixtures over a 650mm travel while relying on the rear screw for final alignment.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX650-100S the Right Cylinder?
Choose this 80mm bore when you need 2513N push force at 0.5MPa, stepping up from a 63mm bore that provides 1559N. The 100mm adjustment window is ideal for lines running mixed product lengths, allowing you to reposition the retract stop during setup without swapping cylinders or adding external stops. For any load-holding requirements without live air pressure, a plain SAIJ is insufficient as the adjuster is not a lock; consider an AirTAC SAIL or BSAI cylinder instead.
Because the 650mm stroke is long and unsupported, the 25mm rod diameter and M20x1.5 rod thread provide rigidity, but you must use an external guide to prevent excessive side-loading. This SKU uses PT tapered ports and supports the SAIJ mounting subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2. It is dimensionally interchangeable per ISO 15552, operating at speeds of 30-800mm/s.
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 SAIJ80AX650-100S FAQ
At 0.5MPa operating pressure, this 80mm bore cylinder provides 2513N of push force and 2268N of pull force. At 0.7MPa, the push force increases to 3518N.
The rear adjuster acts as a mechanical stop that lets you shorten the effective stroke from 650mm down to 550mm. It sets the travel end but does not lock or hold the load without continuous air pressure.
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