Airtac SAIJ80 Adjustable Cylinder SAIJ80X20-10S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X20-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 20mm 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
- Stroke20 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X20-10S
The AirTAC SAIJ80X20-10-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a robust 2513N of push force at 0.5 MPa, utilizing a 25mm carbon steel piston rod and G3/8 PT ports. Because this specific SKU carries a 10mm adjustment code on a 20mm nominal stroke, you can dial the effective travel back to create a precise 10-20mm usable window without swapping hardware.
This integrated rear stopper allows for fine end-position tuning right at commissioning, eliminating the need to bolt on external stops during machine setup. The extruded aluminum barrel features sensor grooves on both sides, and the included magnet (-S) supports AirTAC CMSE reed and DMSE electronic solid-state switches for exact position feedback. It retains the standard ISO 15552 mounting interface but uses a reduced mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X20-10S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X20-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 20 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 SAIJ80X20-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×20 | 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 SAIJ80X20-10S Is Used
Precision Pressing
Dial in the exact 10-20mm contact travel for light assembly presses, ensuring consistent force without over-traveling and damaging delicate components.
Machine Changeover
Quickly adjust the rear stopper to accommodate different product heights on a conveyor line, reducing downtime between production runs.
End-Stop Calibration
Fine-tune the retracted end position during initial machine commissioning, replacing the need to machine custom spacer blocks.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X20-10S the Right Cylinder?
Selecting this 80mm bore provides massive thrust for short-stroke clamping or pressing tasks; if your application requires less force, stepping down to a 63mm bore yields 1559N at 0.5 MPa. Choose this adjustable SAIJ variant over a fixed-stroke SAI when you need variable end-stops to accommodate product changeovers on a line. For strokes of 300mm or longer, always factor in an external guide to handle side loading, though this 20mm short stroke is highly rigid.
When matching an ISO 15552 replacement, verify the 80mm bore, 20mm stroke, 10mm adjustment range, G3/8 PT ports, and the -S magnet. Remember that the rear adjuster acts strictly as a travel stop, not a lock. The SAIJ does not hold loads without live air pressure; for true fail-safe load holding, consider an AirTAC SAIL pneumatic lock, a BSAI clamp-lock cylinder, or an external pilot-operated check valve.
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 SAIJ80X20-10S FAQ
At 0.5 MPa operating pressure, this 80mm bore cylinder provides 2513N of push force and 2268N of pull force. At a maximum 1.0 MPa, it can deliver up to 513 kgf.
The rear adjuster screw lets you shorten the nominal 20mm stroke by up to 10mm, creating a usable travel window of 10-20mm. This stopper only sets the end position; it does not lock the load without continuous air pressure.
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