Airtac SAIJ80 Adjustable Cylinder SAIJ80BX750-100
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX750-100 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 SAIJ80BX750-100
The AirTAC SAIJ80X750-100 is a double-acting ISO 15552 profile cylinder featuring a rear mechanical stopper that allows you to fine-tune the travel end-position. This specific SKU provides a 650 to 750 mm usable stroke window, allowing you to dial back the nominal 750 mm travel by up to 100 mm during commissioning without swapping out the barrel. It delivers a robust 2513 N push force at 0.5 MPa, making it highly suitable for heavy positioning tasks.
This unit is built with a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel features dual sensor grooves, though this specific configuration omits the piston magnet, meaning position sensing requires external switches rather than embedded CMSE or DMSE sensors. The rear adjuster acts solely as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX750-100 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX750-100 |
|---|---|
| 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 SAIJ80BX750-100
| 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 SAIJ80BX750-100 Is Used
Variable Product Changeover
Dial in the 650-750 mm stroke window on the fly to accommodate different package lengths on a packaging line without physically replacing the cylinder.
Heavy Press Positioning
Leverage the 2513 N push force to seat heavy components, using the rear stopper to precisely tune the final contact position during machine commissioning.
Long-Stroke Material Handling
Move payloads along an extended 750 mm travel path while utilizing the 100 mm adjustment range to fine-tune the retracted end-stop for different fixture sizes.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX750-100 the Right Cylinder?
Selecting this 80 mm bore cylinder makes sense when you need the 2513 N thrust at 0.5 MPa but require frequent end-position adjustments for varying product sizes on a line. If your application demands less force, stepping down to a 63 mm bore yields 1559 N, whereas an upgrade to a 100 mm bore provides 3927 N. Because the stroke is 750 mm, you must use an external guide rail to prevent excessive side-loading on the 25 mm rod, as long unsupported strokes naturally induce deflection and wear.
An adjustable stroke is chosen over a fixed SAI cylinder when you need a variable end-stop for machine setup or changeover rather than relying on external shims. Remember that the rear adjuster only sets the travel end and decelerates the load via the 36 mm air cushion; it does not lock the position. For true load-holding without live air pressure, consider the SAIL or BSAI series. This ISO 15552 interchangeable cylinder uses PT ports and supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts.
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 SAIJ80BX750-100 FAQ
At 0.5 MPa operating pressure, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 513 kgf.
The rear adjuster screw acts as a mechanical stop that allows you to shorten the effective travel from 750 mm down to as little as 650 mm. This creates a 100 mm tuning window for commissioning without needing to replace the cylinder, though the adjuster does not lock the load without live air.
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