Airtac SAIJ80 Adjustable Cylinder SAIJ80X100-20
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X100-20 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 SAIJ80X100-20
The AirTAC SAIJ80X100-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 80-100mm, letting you trim the 100mm nominal stroke by up to 20mm during commissioning without swapping the cylinder. In the 80mm bore class, it delivers a robust 2513N push force at 0.5MPa.
This extruded aluminum barrel includes sensor grooves on both sides for CMSE reed or DMSE electronic switches. The standard carbon steel rod and M20x1.5 thread handle high side-load capacity, while the rear stopper acts purely as a travel end-setter and is not a load-holding brake.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X100-20 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X100-20 |
|---|---|
| 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 SAIJ80X100-20
| 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 SAIJ80X100-20 Is Used
Machine Setup Tuning
Dial in the exact 80-100mm end-position during initial commissioning to perfect product ejection without adding external stops.
Product Size Changeover
Quickly adapt the stroke window on packaging lines when running slightly shorter parts, minimizing downtime between batches.
Variable End-Stop Assembly
Fine-tune the clamping travel on assembly fixtures where minor positional adjustments are needed for different component heights.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X100-20 the Right Cylinder?
Choose this 80mm bore when your application requires more force than the 63mm class (1559N at 0.5MPa) but less than the 100mm class (3927N). An adjustable stroke is preferred over a fixed SAI when you need variable end-stops for machine setup or product-size changeovers. The PT tapered port threads match the standard G3/8 fitting for this bore.
For exact ISO 15552 dimensional interchangeability, match the 80mm bore, 100mm stroke, 20mm adjustment, PT port, and your preferred mounting accessory (Basic, FA, LB, TC, FTC, TCM1, or TCM2). Because the rear adjuster only sets the travel end, note that a plain SAIJ does not hold loads without live air; for dead-stop holding, consider an external rod lock or the SAIL series.
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 SAIJ80X100-20 FAQ
At 0.5MPa operating pressure, this 80mm bore cylinder provides 2513N of push force and 2268N of pull force. It can reach up to 4523N push at 0.9MPa.
The rear adjuster screw allows you to shorten the effective travel from the 100mm nominal stroke down to 80mm. This creates a 20mm adjustable window for fine-tuning the retract end position without replacing the cylinder.
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