Airtac SAIJ80 Adjustable Cylinder SAIJ80BX210-20S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX210-20S 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 SAIJ80BX210-20S
The AirTAC SAIJ80X210-20-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 190-210mm usable travel window. The integrated magnet supports position sensing.
This specific configuration utilizes a SUS304 stainless steel rod for superior corrosion resistance and features PT tapered port threads (G3/8). The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. The rear adjustment screw acts purely as a travel stop for deceleration and positioning, meaning it will not hold a load dynamically without continuous live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX210-20S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX210-20S |
|---|---|
| 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 SAIJ80BX210-20S
| 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 SAIJ80BX210-20S Is Used
Product Changeover
Dial in the 190-210mm travel window on the fly to accommodate different package sizes on a packaging line without changing hardware.
End-Stop Tuning
Fine-tune the retract position during machine commissioning to achieve exact alignment of heavy clamping fixtures.
Variable Positioning
Use the rear stopper to set precise lower limits for press operations where the exact bottom position varies per batch.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX210-20S the Right Cylinder?
The adjustable 190-210mm stroke window is ideal for machine setups requiring variable end-stops or frequent product-size changeovers, replacing the need for fixed-stroke SAI cylinders when exact positioning cannot be predetermined. For any load-holding requirements without constant air pressure, this cylinder is insufficient; an external rod lock or a SAIL pneumatic lock cylinder is necessary.
Since the nominal stroke is 210mm, the 25mm rod diameter carries side loads reasonably well, but an external guide should still be used to prevent binding. As a direct ISO 15552 replacement, match the 80mm bore, 210mm stroke, 20mm adjustment, PT port thread, and -S magnet. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR variants.
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 SAIJ80BX210-20S FAQ
At the maximum 1.0 MPa pressure, it can deliver up to 513 kgf.
The rear adjuster screw allows you to shorten the effective travel from the nominal 210mm down to 190mm. It acts as a mechanical stop to set the exact end position, but it is not a lock and cannot hold the load without live air pressure.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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