Airtac SAIJ80 Adjustable Cylinder SAIJ80X105-20
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X105-20 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 SAIJ80X105-20
The AirTAC SAIJ80X105-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a nominal 105 mm stroke that can be dialed back by up to 20 mm, creating an 85-105 mm usable travel window for fine-tuning end positions at commissioning. In the 80 mm bore class, it generates 2513 N of push thrust and 2268 N of pull thrust at 0.5 MPa operating pressure.
This adjustable model uses a carbon steel piston rod with an M20x1.5 thread, paired with a G3/8 port. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE reed or DMSE electronic switches. The rear adjuster acts purely as a travel stop for deceleration and positioning, meaning it does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X105-20 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X105-20 |
|---|---|
| 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 SAIJ80X105-20
| 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 SAIJ80X105-20 Is Used
Machine Setup Tuning
Dial in the exact 85-105 mm travel window during commissioning to perfect end-stops without adding external spacers.
Product Size Changeover
Quickly adjust the rear stopper by up to 20 mm to accommodate varying product lengths on the same conveyor line.
Variable End-Stop Forming
Provides precise positional tuning for light press operations where the nominal stroke needs slight trimming.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X105-20 the Right Cylinder?
Choose this 80 mm bore cylinder when your application requires 2513 N push force at 0.5 MPa and on-the-fly end-position tuning without swapping components. If you need less force, stepping down to a 63 mm bore yields 1559 N; if your setup demands higher force, a 100 mm bore provides 3927 N. The adjustable 85-105 mm window is perfect for product changeovers, whereas a fixed-stroke SAI cylinder is better for repetitive single-purpose tasks.
For ISO 15552 replacement matching, ensure the 80 mm bore, 105 mm stroke, 20 mm adjustment, PT tapered port, and mounting style (Basic, FA, LB, TC, FTC, TCM1, or TCM2) align with your footprint. Because the stroke is 105 mm, side-load is minimal, but always ensure proper guide alignment. If you need true load-holding without live air, select a SAIL or BSAI cylinder instead, as the SAIJ adjuster is not a lock.
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 SAIJ80X105-20 FAQ
At 0.5 MPa, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. At the maximum operating pressure of 1.0 MPa, it delivers up to 513 kgf.
The rear adjuster screw allows you to shorten the 105 mm nominal stroke by up to 20 mm, providing an 85-105 mm usable travel window. It functions as a physical stop to fine-tune end positions, but it is not a lock and will not hold the load without live air pressure.
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