Airtac SAIJ80 Adjustable Cylinder SAIJ80AX20-20S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX20-20S 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ80 mm
- Stroke20 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX20-20S
Because the nominal stroke is a short 20mm and the adjustment code is also 20mm, you can dial the effective travel back to zero, creating a highly precise 0-20mm usable window. This is ideal for applications requiring exact end-position tuning at commissioning without swapping out the physical cylinder.
This variant features an SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance and includes a magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors. The extruded aluminum barrel provides standard ISO 15552 mounting interchangeability, while the PT tapered port threads ensure a tight pneumatic seal at the G3/8 port.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX20-20S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX20-20S |
|---|---|
| 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 | 2268 N | 2268 N |
| 0.7 MPa | 3175 N | — |
| Max (@1.0 MPa) | 463 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80AX20-20S
| 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 SAIJ80AX20-20S Is Used
Precision Clamping
Dial in the exact clamping depth on delicate workpieces using the 0-20mm travel window, preventing damage during short-stroke actuation.
Machine Changeover
Quickly reconfigure the rear stop position for different product sizes on a packaging line without physically replacing the cylinder.
End-Position Tuning
Fine-tune the final retract position during commissioning to perfectly align tooling, absorbing mechanical tolerances without adding external stops.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX20-20S the Right Cylinder?
Choose this 80mm bore when you need substantial thrust—stepping down to a 63mm bore yields 1559N at 0.5 MPa, whereas this SAIJ80X20-20-S provides 2513N. The adjustable stroke is selected over a fixed SAI when you need variable end-stops or on-the-fly product changeover. To match this ISO 15552 replacement exactly, specify: 80mm bore, 20mm stroke, 20mm adjustment, PT port thread, and the -S magnet.
Because the rear adjuster acts purely as a mechanical stop and the air cushion only manages deceleration, neither will hold a load without live air pressure. For dead-load holding, consider an AirTAC SAIL or BSAI cylinder. Additionally, the 25mm rod and M20x1.5 thread provide excellent side-load capacity, though any long unsupported stroke still requires an external guide.
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 SAIJ80AX20-20S FAQ
At a maximum 1.0 MPa, it can deliver up to 513 kgf.
The rear adjusting screw acts as a mechanical stop that allows you to trim the effective stroke back by up to 20mm. Since the nominal stroke is 20mm, this gives you a usable travel window of 0-20mm to fine-tune the end position without changing the cylinder.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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