Airtac SAIJ80 Adjustable Cylinder SAIJ80BX105-50S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX105-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 105mm 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
- Stroke105 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 SAIJ80BX105-50S
The AirTAC SAIJ80X105-50-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 105 mm stroke that can be fine-tuned backward by up to 50 mm, creating a precise 55-105 mm usable travel window for commissioning flexibility.
This model features a PT tapered port thread and includes a magnetic piston for position sensing. The rear adjuster acts purely as a mechanical stop to dial in end positions during machine setup or product changeover without swapping the cylinder. It utilizes a reduced mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR brackets.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX105-50S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX105-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 105 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 SAIJ80BX105-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×105 | 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 SAIJ80BX105-50S Is Used
Product Changeover
Dial in the 55-105 mm end-position during production line size changes without physically swapping out the cylinder or adding external stopper blocks.
End-Position Tuning
Fine-tune the retract stroke at machine commissioning to compensate for mechanical tolerances, ensuring precise and repeatable end-of-travel positioning.
Corrosive Environment Actuation
Leverage the SUS304 stainless steel rod for push operations up to 3518 N at 0.7 MPa in washdown or corrosive manufacturing settings requiring ISO 15552 dimensions.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX105-50S the Right Cylinder?
Choose this 80 mm bore cylinder when an application requires substantial thrust—stepping down to a 63 mm bore reduces push force to 2182 N at 0.7 MPa, whereas this model delivers 3518 N. The 50 mm adjustment range is ideal for lines running mixed product sizes, allowing operators to dial in the exact 55-105 mm end-stop on the fly instead of installing fixed external stops. For any load-holding requirements without live air pressure, note that the rear adjuster is only a travel stop; you must integrate an external rod lock or pilot-operated check valve, or switch to a SAIL or BSAI cylinder.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 105 mm stroke, PT port thread, and the -S magnet requirement. The integrated magnet supports AirTAC CMSE reed and DMSE electronic solid-state sensors housed in the dual-side barrel grooves. Because the stroke is 105 mm, side-load risks are minimal, but long unsupported loads should still use an external guide.
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 SAIJ80BX105-50S FAQ
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective travel from the nominal 105 mm down to as little as 55 mm. This creates a 55-105 mm usable window for fine-tuning without changing the cylinder, but it does not lock or hold the load without live air pressure.
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