Airtac SAIJ80 Adjustable Cylinder SAIJ80BX750-30S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX750-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 750mm 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
- Stroke750 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX750-30S
The AirTAC SAIJ80X750-30-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a usable travel window of 720 to 750 mm. Delivering a robust 4523 N of push force at 0.9 MPa, it integrates a SUS304 stainless steel rod for superior corrosion resistance and features a PT tapered port thread. An integrated magnet allows seamless operation with CMSE reed and DMSE electronic sensors.
Because the rear adjuster acts purely as a mechanical stop, it cannot hold a load without live air pressure. For true fail-safe load holding, an external rod lock or pilot-operated check valve is required. The extruded aluminum barrel includes sensor grooves on both sides, and the mounting interface utilizes the reduced SAIJ set: Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX750-30S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX750-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 750 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 SAIJ80BX750-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×750 | 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 SAIJ80BX750-30S Is Used
Variable End-Stop Tuning
Dial in the exact retract distance within the 720 to 750 mm window during machine setup to accommodate varying material thicknesses without adding external stopper blocks.
Product Size Changeover
Quickly readjust the stroke end position on packaging or sorting lines when transitioning between different product dimensions, minimizing downtime.
Long-Stroke Assembly Press
Leverage the 4523 N push force at 0.9 MPa to drive long-travel pressing or seating operations while retaining the flexibility to trim the final end position by up to 30 mm.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX750-30S the Right Cylinder?
Choose this 80 mm bore when you need more thrust than a 63 mm cylinder provides (2182 N push at 0.5 MPa) but want to avoid the heavier footprint of a 100 mm unit. The 30 mm adjustment range is ideal for fine-tuning the retract end position during machine commissioning or product changeover without swapping out the entire cylinder. When stepping up from a fixed-stroke SAI, specify the exact bore, 750 mm stroke, 30 mm adjustment, PT ports, and the -S magnet. Given the 750 mm stroke, an external guide is highly recommended to prevent excessive side-loading on the rod and 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 SAIJ80BX750-30S FAQ
At an operating pressure of 0.9 MPa, this 80 mm bore cylinder generates 4523 N of push force and 4071 N of pull force. At the maximum 1.0 MPa pressure, it achieves up to 513 kgf.
The rear adjuster screw allows you to shorten the effective travel from the nominal 750 mm down to 720 mm. This mechanical stopper fine-tunes the end position at commissioning but does not lock the load without live air pressure.
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