Airtac SAIJ80 Adjustable Cylinder SAIJ80BX75-75S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX75-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 75mm 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
- Stroke75 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX75-75S
The AirTAC SAIJ80X75-75-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 0-75 mm for exact end-position tuning. Fitted with a SUS304 stainless steel rod and a magnetic piston for CMSE or DMSE sensors, it delivers 3518 N of push force at 0.7 MPa. The PT tapered ports ensure a tight, leak-free pneumatic connection.
Because the adjustment range matches the nominal stroke, you can dial the extension back to any point between fully retracted and 75 mm without swapping hardware. The extruded aluminum barrel features sensor grooves on both sides, and the mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX75-75S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX75-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 75 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 SAIJ80BX75-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×75 | 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 SAIJ80BX75-75S Is Used
Variable End-Stop Calibration
Dial in the exact extension from 0 to 75 mm during machine commissioning to accommodate different material thicknesses without adding external mechanical stops.
Product Size Changeovers
Quickly readjust the cylinder travel on packaging lines when switching between product formats, minimizing downtime and avoiding cylinder swaps.
Stainless Rod Actuation
Leverage the SUS304 rod for applications requiring high corrosion resistance while applying up to 2513 N of push force at 0.5 MPa.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX75-75S the Right Cylinder?
Choose this 80 mm bore when you need significantly more thrust than a 63 mm cylinder (which provides 2182 N at 0.7 MPa) but want to avoid the larger footprint of a 100 mm unit. The adjustable stroke is perfect for machine setups requiring frequent product changeovers, allowing you to redefine the end-stop on the fly rather than machining external stops. For strokes of 300 mm or more, an external guide is recommended to manage side loads, though this 75 mm unit is compact enough to minimize rod deflection.
Remember that the rear adjuster functions strictly as a travel stop, not a locking device; it cannot hold a load without continuous air pressure. For load-holding requirements, consider an AirTAC SAIL or BSAI cylinder. This model is dimensionally interchangeable per ISO 15552, featuring a -S magnet, PT ports, and a 25 mm rod with an M20x1.5 thread.
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 SAIJ80BX75-75S FAQ
At an operating pressure of 0.7 MPa, this 80 mm bore cylinder provides 3518 N of push force and 2268 N of pull force. It operates efficiently at speeds between 30 and 800 mm/s.
The rear adjuster screw lets you trim the effective travel anywhere within a 0-75 mm window. It acts as a physical stop to set the end position, but it is not a lock and will not hold the load without live air pressure.
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