Airtac SAIJ80 Adjustable Cylinder SAIJ80BX550-50S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX550-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 550mm 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
- Stroke550 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 SAIJ80BX550-50S
The AirTAC SAIJ80X550-50-S is a double-acting ISO 15552 profile cylinder featuring a rear mechanical adjuster that allows you to fine-tune the effective stroke length. With a 550 mm nominal stroke and a 50 mm adjustment range, you can dial the travel window down to 500 mm during commissioning without adding external stops.
This variant uses a SUS304 stainless steel rod for corrosion resistance and includes a magnet for position sensing. The extruded aluminum barrel integrates sensor grooves on both sides, supporting AirTAC CMSE reed and DMSE electronic switches. The G3/8 PT tapered ports manage pneumatic flow, while the 25 mm rod and M20x1.5 thread provide high structural rigidity for demanding setups.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX550-50S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX550-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 550 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 SAIJ80BX550-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×550 | 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 SAIJ80BX550-50S Is Used
Variable End-Stop Positioning
Dial in the exact retract distance between 500 and 550 mm to accommodate varying material thicknesses without changing the cylinder.
Product Changeover
Quickly adjust the stroke end-position during packaging line format changes, saving downtime compared to physically swapping cylinders.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX550-50S the Right Cylinder?
The adjustable 500-550 mm travel window is ideal for product changeovers, allowing you to reposition the retract end-stop on the fly rather than physically swapping the cylinder for a different fixed-stroke SAI unit.
Because the 550 mm stroke is substantial, the unsupported piston rod is prone to deflection under gravity or side loads; always use an external guide to prevent premature seal wear. Remember that the rear adjuster acts only as a travel stop and the air cushions handle deceleration—neither will hold a load without live air pressure. For true load-holding without continuous air, integrate an external rod lock or pilot-operated check valve, or select an AirTAC SAIL or BSAI series. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ80BX550-50S FAQ
At the maximum operating pressure of 0.9 MPa, the push force increases to 4523 N.
A rear adjusting screw allows you to shorten the 550 mm nominal stroke by up to 50 mm, creating a usable travel window of 500-550 mm. This stopper fine-tunes the end position but does not lock the load without live air pressure.
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Genuine AirTAC parts produced by AirTAC factory.
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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