Airtac SAIJ80 Adjustable Cylinder SAIJ80BX600-75S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX600-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 600mm 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
- Stroke600 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX600-75S
The AirTAC SAIJ80X600-75-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 525-600mm usable travel window. It delivers a robust 4523N of push force at 0.9 MPa, utilizing a 25mm rod and G3/8 ports to handle demanding industrial motion. The extruded aluminum barrel includes dual sensor grooves, and this specific configuration includes a SUS304 stainless steel rod and a PT tapered port thread.
Because the 600mm stroke is substantial, the 25mm rod diameter and M20x1.5 thread provide necessary rigidity, though an external guide is strongly recommended to prevent excessive side-loading on the extended piston. The rear stopper screw lets you dial back the end position by up to 75mm during commissioning without swapping hardware. This unit includes a magnet for CMSE reed and DMSE electronic sensors, and it supports a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2).
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX600-75S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX600-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 600 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 SAIJ80BX600-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×600 | 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 SAIJ80BX600-75S Is Used
Variable End-Stops
Dial back the stroke by up to 75mm to accommodate varying package sizes on a conveyor line without physically repositioning the cylinder.
Machine Changeover
Fine-tune the 600mm travel end-position during product format changes, using the rear screw to set exact retraction limits on the fly.
Long-Travel Tuning
Perfectly trim the extended reach of long-stroke automated machinery, ensuring precise end-of-stroke positioning without adding external mechanical stops.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX600-75S the Right Cylinder?
Choose this 80mm bore when you need more force than a 63mm cylinder provides (1402N pull at 0.5 MPa) but want to avoid stepping up to a 100mm bore. The 75mm adjustment range is ideal for long-travel setups requiring precise variable end-stops during product changeovers. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air; for true load-holding without pressure, consider an AirTAC SAIL, BSAI, or an external rod lock. To replace an ISO 15552 cylinder, match the 80mm bore, 600mm stroke, 75mm adjustment, PT G3/8 port, and the -S magnet requirement.
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 SAIJ80BX600-75S FAQ
At 0.9 MPa operating pressure, this 80mm bore cylinder generates 4523N of push force and 4071N of pull force, with a maximum rated force of 513 kgf at 1.0 MPa.
The rear adjuster screw allows you to shorten the nominal 600mm stroke by up to 75mm, providing an effective adjustable travel window of 525-600mm for fine-tuning end positions.
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