Airtac SAIJ80 Adjustable Cylinder SAIJ80BX750-100S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX750-100S 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 SAIJ80BX750-100S
The AirTAC SAIJ80X750-100-S is a double-acting ISO 15552 profile cylinder with a rear stroke adjuster, letting you dial back the nominal 750 mm travel by up to 100 mm. This yields a 650-750 mm usable window for fine-tuning the retract end-position during commissioning without adding external stops. The 80 mm bore delivers 2513 N of push force at 0.5 MPa and 4523 N at 0.9 MPa.
It features a SUS304 stainless steel rod for corrosion resistance and includes a magnet for CMSE reed and DMSE electronic sensors. The extruded aluminum barrel provides sensor grooves on both sides. Because the stroke is 750 mm, the 25 mm rod and M20x1.5 thread still require an external guide to prevent excessive side-loading on the piston.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX750-100S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX750-100S |
|---|---|
| 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 SAIJ80BX750-100S
| 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 SAIJ80BX750-100S Is Used
Variable End-Stop Machining
Dial in the exact retract position from 650 to 750 mm to accommodate different material lengths without repositioning the cylinder.
Product Changeover Diverter
Quickly adjust the stroke on a sorting diverter arm to handle varying package sizes on the fly during production line shift changes.
Machine Setup Tuning
Fine-tune the end-of-stroke position during initial commissioning to perfectly time the machine cycle without adding external collars.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX750-100S the Right Cylinder?
Choose this 80 mm bore when an application needs more thrust than a 63 mm bore (1559 N at 0.5 MPa) but less than a 100 mm bore (3927 N at 0.5 MPa). The 100 mm adjustment range is ideal for machinery that handles varying product sizes, allowing rapid changeover without physically swapping the cylinder. The G3/8 PT port and 30-800 mm/s speed range match standard pneumatic setups.
For strokes of 750 mm, always support the load with an external linear guide to protect the rod from bending. Remember that the rear adjuster is a travel stop, not a lock; it cannot hold the load without live air. For true fail-safe load holding, select an AirTAC SAIL or BSAI cylinder. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR brackets.
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 SAIJ80BX750-100S FAQ
A rear adjusting screw lets you shorten the 750 mm nominal stroke by up to 100 mm, providing a usable travel window of 650-750 mm. It acts as a physical stop to set the retract position and does not lock the load without air pressure.
At 0.5 MPa it provides 2513 N of push force and 2268 N of pull force. At 0.9 MPa, the push force increases to 4523 N.
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