Airtac SAIJ80 Adjustable Cylinder SAIJ80BX100-20S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX100-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 100mm 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
- Stroke100 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX100-20S
The AirTAC SAIJ80X100-20-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates an 80-100mm usable travel window from its 100mm nominal stroke. It delivers 2513N of push force and 2268N of pull force at 0.5 MPa, making it a robust choice for mid-weight handling.
This variant uses a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for position sensing with CMSE reed or DMSE electronic switches. It features PT tapered port threads (G3/8) and variable air cushions at both ends to manage impact deceleration.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX100-20S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX100-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 100 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 SAIJ80BX100-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×100 | 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 SAIJ80BX100-20S Is Used
Machine Changeover
Dial in the exact 80-100mm end-stop during format size changes on a packaging line without replacing hardware.
Assembly Positioning
Fine-tune the retract stroke to press components accurately, absorbing minor variations in part tolerances.
Conveyor Diverter
Adjust the travel distance of a diverting gate on the fly to handle different package widths on a single belt.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX100-20S the Right Cylinder?
Choose this adjustable model when your assembly requires precise end-position tuning at commissioning or during product changeovers without swapping the physical cylinder. If your application needs less force, stepping down to a 63mm bore yields 1402N of pull force at 0.5 MPa; conversely, moving to a 100mm bore provides 3681N of pull force.
Because the rear screw acts only as a travel stop and the cushions manage deceleration, this cylinder will not hold a load without live air pressure. For drop-prevention or fail-safe holding, consider the SAIL or BSAI series. This SAIJ model uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and is dimensionally interchangeable per ISO 15552.
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 SAIJ80BX100-20S FAQ
The rear adjuster screw lets you shorten the effective stroke by up to 20mm, providing a usable travel window of 80-100mm. This allows you to set the exact retract end-position during installation without adding external stops.
At 0.5 MPa, it provides 2513N of push force and 2268N of pull force. The operating speed range is 30-800 mm/s, controlled by variable air cushions at both ends.
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