Airtac SAIJ80 Adjustable Cylinder SAIJ80BX800-75S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX800-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 800mm 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
- Stroke800 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX800-75S
The AirTAC SAIJ80X800-75-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering a robust 2513N of push force at 0.5 MPa. It features a SUS304 stainless steel rod and a built-in magnet for position sensing. By integrating a rear stopper screw, this model provides a usable travel window of 725-800mm, allowing you to trim up to 75mm off the nominal 800mm stroke without external stops.
This adjustable end-position capability is invaluable during machine commissioning or product changeovers, enabling fine-tuning of the retract distance on the fly. The extruded aluminum barrel includes sensor grooves on both sides for direct mounting of CMSE reed and DMSE electronic switches. It supports a speed range of 30-800mm/s and uses a G3/8 port with PT tapered threading for pneumatic connections.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX800-75S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX800-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 800 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 SAIJ80BX800-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×800 | 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 SAIJ80BX800-75S Is Used
Variable Length Diverter
Dial in the exact 725-800mm retract distance on a sorting line to accommodate different package sizes without physically swapping the actuator.
Long-Stroke Machine Setup
Fine-tune the end-of-stroke position during equipment commissioning to perfectly align a 2513N push force against a moving pallet.
Product Size Changeover
Quickly readjust the stroke window on automated assembly lines when transitioning between product variants, saving downtime on external stop modifications.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX800-75S the Right Cylinder?
Select this 80mm bore cylinder when an application requires substantial pull force (2268N at 0.5 MPa) alongside precise retract positioning. If you need less force, stepping down to a 63mm bore yields 1402N of pull force, whereas moving up to a 100mm bore provides 3681N. Because this unit features an 800mm stroke, an external guide is strongly recommended to prevent excessive side-loading on the 25mm rod. The rear adjuster acts strictly as a travel stop to set deceleration, not as a lock; for load-holding without live air pressure, consider an AirTAC SAIL or BSAI cylinder. As a dimensionally interchangeable ISO 15552 profile cylinder, it matches standard mounting footprints using the Basic, FA, LB, TC, FTC, TCM1, and TCM2 bracket set.
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 SAIJ80BX800-75S FAQ
At 0.5 MPa operating pressure, this 80mm bore cylinder provides 2513N of push force and 2268N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 513 kgf.
The rear adjuster screw lets you shorten the effective travel from the nominal 800mm down to 725mm, creating a 725-800mm usable window. This stopper sets the end position but does not lock the load without continuous air pressure.
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