Airtac SAIJ80 Adjustable Cylinder SAIJ80AX210-40
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX210-40 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 SAIJ80AX210-40
The AirTAC SAIJ80X210-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel window from 170 to 210 mm. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting.
This variant uses a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance and features PT tapered port threads sized at G3/8. Because the rear adjuster acts strictly as a mechanical stop to set the end position, it does not hold the load without live air pressure. For position-holding requirements without continuous air supply, consider an external rod lock or the AirTAC SAIL or BSAI series.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX210-40 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX210-40 |
|---|---|
| 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 SAIJ80AX210-40
| 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 SAIJ80AX210-40 Is Used
Variable End-Stop Tuning
Dial in the exact end position within the 170-210 mm window during machine commissioning without changing the cylinder.
Product Size Changeovers
Quickly adapt the stroke length on packaging lines processing different carton sizes by adjusting the rear stopper.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX210-40 the Right Cylinder?
The 40 mm adjustment range is ideal for machine setups requiring variable end-stops during product changeovers, eliminating the need to physically swap cylinders or bolt on external stops. It operates at speeds from 30 to 800 mm/s.
When replacing an ISO 15552 cylinder, match these exact parameters: 80 mm bore, 210 mm stroke, 40 mm adjustment, PT G3/8 ports, and the SAIJ mounting subset (Basic, FA, LB, TC, FTC, TCM1, TCM2). Since the 210 mm stroke approaches the threshold where rod deflection becomes a factor, ensure external guidance is used to prevent excessive side-loading on 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 SAIJ80AX210-40 FAQ
The rear adjuster screw allows you to shorten the nominal 210 mm stroke by up to 40 mm, creating a usable travel window of 170 to 210 mm. The adjuster acts as a mechanical stop to fine-tune the end position and does not lock the load without live air pressure.
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