Airtac SAIJ80 Adjustable Cylinder SAIJ80AX210-20S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX210-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 210mm 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
- Stroke210 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 SAIJ80AX210-20S
The AirTAC SAIJ80X210-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 190-210 mm usable travel window, allowing you to fine-tune the retract end-position by up to 20 mm without adding external stops. In this -S configuration, the extruded aluminum barrel includes a magnet for position sensing with AirTAC CMSE reed or DMSE electronic switches.
The piston rod uses SUS420J2 stainless steel for superior corrosion resistance, and the PT tapered port threads ensure a tight, reliable pneumatic connection. You can fine-tune travel easily, but note the adjuster acts only as a travel stop, not a load lock.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX210-20S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX210-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 210 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 SAIJ80AX210-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×210 | 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 SAIJ80AX210-20S Is Used
Machine Setup Changeover
Dial in the exact 190-210 mm retract position during line changeovers without physically replacing the cylinder or adding external stopper blocks.
Variable End-Stop Forming
Fine-tune the stroke end-position on the fly for pressing or forming applications that require slight positional adjustments between different product sizes.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX210-20S the Right Cylinder?
Choose this 80 mm bore when you need more force than a 63 mm cylinder (which provides 1402 N pull at 0.5 MPa) but want to avoid the larger footprint of a 100 mm unit. The adjustable 190-210 mm travel window is ideal for product changeovers, letting you dial in the exact end-stop during commissioning rather than swapping to a fixed-stroke SAI cylinder. For holding loads without live air pressure, select a SAIL or BSAI series cylinder instead, as the SAIJ adjuster is strictly a stop.
As a direct ISO 15552 replacement, match your bore size, 210 mm stroke, 20 mm adjustment range, PT G3/8 port, and -S magnet requirement. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR. Because the 210 mm stroke is moderately long, ensure you use an external guide to prevent side-loading damage to the 25 mm rod.
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 SAIJ80AX210-20S FAQ
The rear adjuster screw lets you shorten the nominal 210 mm stroke by up to 20 mm, creating a 190-210 mm usable travel window. It acts as a mechanical stop to set the end-position and does not lock the load without air pressure.
At 0.7 MPa, the push force increases to 3518 N.
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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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