Airtac SAIJ80 Adjustable Cylinder SAIJ80BX700-30
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX700-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 700mm 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
- Stroke700 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX700-30
The AirTAC SAIJ80X700-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a nominal 700mm stroke that can be fine-tuned down by up to 30mm, yielding a 670-700mm usable travel window for precise retract positioning. Delivering 3518N of push force at 0.7 MPa, it uses a robust 25mm piston rod and M20x1.5 rod thread to handle high side loads.
This unit features a SUS304 stainless steel rod for corrosion resistance and utilizes PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, ready for DMSE solid-state or CMSE reed switches if added later. The rear adjuster acts purely as a travel stop to dial in end positions during setup, not as a load-holding lock.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX700-30 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX700-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 700 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 SAIJ80BX700-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×700 | 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 SAIJ80BX700-30 Is Used
Product Changeovers
Dial in the 670-700mm retract position during line size changes without physically swapping out the cylinder.
Commissioning Setup
Use the 30mm rear stopper screw to fine-tune the end-of-travel position and absorb mechanical tolerances during machine setup.
Long-Stroke Assembly
Leverage the 25mm rod and 700mm travel for pushing heavy pallets or large components into place on an assembly line.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX700-30 the Right Cylinder?
Choose this 80mm bore adjustable-stroke cylinder when an application requires 3518N of thrust at 0.7 MPa and exact end-position tuning without adding external stops. If your machine has lower force requirements, stepping down to a 63mm bore provides 2182N at 0.7 MPa. Conversely, heavier loads may require the 100mm bore yielding 5497N.
The adjustable 670-700mm travel window is ideal for product changeovers, letting you shorten the retract distance on the fly instead of swapping the cylinder. Because the 700mm stroke is relatively long, an external guide is recommended to prevent rod sag and binding. For applications requiring the load to be held in place without live air pressure, this cylinder is insufficient; consider the SAIL or BSAI locking variants instead. This model is dimensionally interchangeable per ISO 15552 with a PT port, SUS304 rod, 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 SAIJ80BX700-30 FAQ
At an operating pressure of 0.7 MPa, this 80mm bore cylinder generates 3518N of push force and 2268N of pull force. It can reach a maximum push force of 4523N at 0.9 MPa.
The rear adjuster screw lets you shorten the effective retract stroke by up to 30mm from the nominal 700mm length, creating a 670-700mm travel window. This stopper only sets the end position and does not lock the load without live air pressure.
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