Airtac SAIJ80 Adjustable Cylinder SAIJ80BX105-20
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX105-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 105mm 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
- Stroke105 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX105-20
The AirTAC SAIJ80X105-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 2513N pull force at 0.5 MPa and uses a PT G3/8 port. By turning the rear stopper screw, you can dial back the 105mm nominal stroke by up to 20mm, creating an 85-105mm usable travel window for precise end-position tuning.
This model features a SUS304 stainless steel rod for superior corrosion resistance. The extruded aluminum barrel includes dual sensor grooves, though this specific SKU is configured without a magnet. The rear adjuster acts purely as a travel stop and does not lock the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX105-20 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX105-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 105 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 SAIJ80BX105-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×105 | 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 SAIJ80BX105-20 Is Used
Machine Setup
Fine-tune the 85-105mm travel window during initial commissioning to perfectly dial in the retract end-position.
Product Changeover
Quickly adjust the rear stopper screw to accommodate slight variations in product size without swapping the cylinder.
Variable End Stops
Set precise retract limits on automated machinery using the 20mm adjustment range and 2513N pull force.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX105-20 the Right Cylinder?
Choose this 80mm bore adjustable-stroke cylinder when you need to fine-tune the retract end at commissioning without adding external stops. Delivering 2513N of pull force at 0.5 MPa, it hits a middle ground between the 1402N pull of a 63mm bore and the 3681N pull of a 100mm bore. The 20mm adjustment window is ideal for variable end-stops during product changeovers.
For an exact ISO 15552 replacement match, verify the 105mm stroke, 20mm adjustment, PT G3/8 port, and Basic, FA, LB, TC, FTC, TCM1, or TCM2 mounting. Because the stroke is under 300mm, side-load stress is minimal, but long unsupported loads still need an external guide. For load-holding without live pressure, select the SAIL or BSAI series instead.
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 SAIJ80BX105-20 FAQ
At 0.5 MPa, this 80mm bore cylinder provides 2513N of pull force and 3518N of push force. At 0.7 MPa, the push force increases to 3518N.
The rear adjuster screw trims the 105mm nominal stroke back by up to 20mm, giving an 85-105mm usable travel window. The adjuster acts as a mechanical stop and does not hold the load without live air.
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