Airtac SAIJ80 Adjustable Cylinder SAIJ80BX500-75S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX500-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 500mm 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
- Stroke500 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX500-75S
The AirTAC SAIJ80X500-75-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster, providing a usable travel window of 425 to 500 mm for exact end-position tuning. It delivers a robust 2513 N push force at 0.5 MPa, scaling up to 4523 N at 0.9 MPa, making it ideal for heavy-duty positioning tasks. This variant includes a SUS304 stainless steel rod for superior corrosion resistance and a magnetic piston for electronic position sensing.
It features PT tapered ports sized at G3/8 and operates at speeds between 30 and 800 mm/s. The extruded aluminum barrel includes sensor grooves on both sides, fully compatible with AirTAC DMSE solid-state and CMSE reed switches. This model utilizes the standard SAIJ mounting set, including Basic, FA, LB, TC, FTC, TCM1, and TCM2, while omitting FB, CA, CB, and CR brackets.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX500-75S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX500-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 500 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 SAIJ80BX500-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×500 | 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 SAIJ80BX500-75S Is Used
Machine Changeover
Quickly fine-tune the 425-500 mm retract stop during product size transitions on a packaging line without replacing the cylinder.
Heavy Positioning
Leverage the 2513 N push force at 0.5 MPa to shift heavy fixtures into exact alignment, using the rear screw for final calibration.
Sensor-Driven Automation
Utilize the magnetic piston with DMSE solid-state sensors to confirm end-of-stroke positions in automated assembly cells.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX500-75S the Right Cylinder?
Select this 80 mm bore when an application requires higher thrust than the 63 mm bore (which provides 1559 N at 0.5 MPa) but does not need the massive output of the 100 mm option (3927 N at 0.5 MPa). The integrated 75 mm rear adjuster allows you to dial in the exact retract distance during commissioning or product changeovers, eliminating the need to physically swap the cylinder or bolt on external stops. Because the 500 mm stroke is substantial, an external guide is strongly recommended to prevent excessive side-loading on the 25 mm rod.
For load-holding applications, remember that the rear adjuster functions strictly as a travel stop and the air cushions only manage deceleration; neither system will lock the load without continuous live air pressure. If the machine requires true fail-safe holding, consider the AirTAC SAIL pneumatic lock or BSAI clamp-lock series instead. To match this exact ISO 15552 interchangeable unit, specify: 80 mm bore, 500 mm stroke, 75 mm adjustment, PT G3/8 ports, SUS304 rod, and the -S magnet option.
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 SAIJ80BX500-75S FAQ
At 0.5 MPa, this 80 mm bore cylinder generates 2513 N of push force and 2268 N of pull force. At the maximum operating pressure of 1.0 MPa, it can deliver up to 513 kgf.
The rear adjuster screw allows you to shorten the nominal 500 mm stroke by up to 75 mm, creating a usable travel window of 425 to 500 mm. This stopper fine-tunes the end position but does not lock the load without live air pressure.
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