Airtac SAIJ80 Adjustable Cylinder SAIJ80AX210-50
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX210-50 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 SAIJ80AX210-50
The AirTAC SAIJ80X210-50 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. The integrated adjuster allows you to trim the nominal 210 mm stroke back by up to 50 mm, creating a precise 160-210 mm usable travel window for exact end-position tuning during commissioning.
This model uses a SUS420J2 stainless steel rod for superior corrosion resistance and pairs with PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, allowing direct mounting of CMSE reed and DMSE electronic solid-state switches if a magnet is later required. The rear stopper mechanism sets the travel end-point and relies on the variable air cushions for deceleration, but it does not function as a lock to hold the load without continuous air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX210-50 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX210-50 |
|---|---|
| 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 SAIJ80AX210-50
| 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 SAIJ80AX210-50 Is Used
Machine Changeover
Dial in the 160-210 mm travel window during product size transitions without swapping out the cylinder or adding external mechanical stops.
End-Position Tuning
Fine-tune the retract stroke by up to 50 mm at commissioning to perfect the seating pressure of high-force 2513 N tooling operations.
Variable Stops
Adjust the end-stop on the fly for conveyor diverter arms or product handling lines that process multiple package lengths.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX210-50 the Right Cylinder?
Select this 80 mm bore cylinder when an application requires high thrust combined with variable end-stops, avoiding the need to physically swap cylinders during product changeovers. For operations requiring true load-holding without live air pressure, a plain SAIJ is insufficient and you should pivot to the SAIL air-released lock or BSAI clamp-lock series.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 210 mm stroke, 50 mm adjustment range, G3/8 PT ports, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because the 210 mm stroke approaches the threshold where rod deflection impacts alignment, ensure external guides are used to absorb side loads and protect the 25 mm rod diameter from premature wear.
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 SAIJ80AX210-50 FAQ
The rear adjuster screw acts as a mechanical stop that lets you shorten the 210 mm nominal stroke by up to 50 mm, providing a usable travel window of 160-210 mm. It sets the end-position and relies on the air cushions for deceleration, but it is not a lock and will not hold the load without live air pressure.
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Covers non-human-caused product damage.
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