Airtac SAIJ80 Adjustable Cylinder SAIJ80AX210-20
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX210-20 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 SAIJ80AX210-20
The AirTAC SAIJ80X210-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel back by up to 20 mm. This creates a usable stroke window of 190-210 mm, enabling fine end-position tuning at commissioning without swapping the barrel or adding external stops.
This SKU is configured with an SUS420J2 stainless steel rod for enhanced corrosion resistance and features PT tapered ports. The extruded aluminum barrel includes sensor grooves on both sides, and the rear adjuster functions purely as a mechanical stop to set the end of travel—it is not a lock and will not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX210-20 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX210-20 |
|---|---|
| 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 SAIJ80AX210-20
| 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 SAIJ80AX210-20 Is Used
Machine Changeover
Dial in the exact 190-210 mm end position during product size changeovers without disassembling the line or adding external stopper blocks.
End-Position Tuning
Fine-tune the retract stroke at commissioning to compensate for mechanical tolerances, using the rear adjuster as a hard stop rather than relying solely on the air cushion.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX210-20 the Right Cylinder?
The adjustable stroke is ideal for machine setups requiring variable end stops or product-size changeovers, replacing the need for a fixed-stroke SAI cylinder. To match this ISO 15552 footprint, specify an 80 mm bore, 210 mm nominal stroke, 20 mm adjustment, PT ports, and your required mounting from the SAIJ subset (Basic, FA, LB, TC, FTC, TCM1, TCM2). For strokes of 300 mm or more, an external guide is recommended to manage side load, though this 210 mm length is manageable with proper rod support.
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 SAIJ80AX210-20 FAQ
The rear adjuster acts as a mechanical stop that lets you shorten the 210 mm nominal stroke by up to 20 mm, providing an effective travel window of 190-210 mm. It only sets the end position and does not lock or hold the load without continuous air pressure.
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