Airtac SAIJ80 Adjustable Cylinder SAIJ80BX45-20S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX45-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 45mm 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
- Stroke45 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 SAIJ80BX45-20S
The AirTAC SAIJ80X45-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. This specific SKU features a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for position sensing.
The rear adjustment mechanism acts purely as a mechanical stop to fine-tune the retract stroke during commissioning or product changeover. It is not a locking device, meaning the cylinder cannot hold a load safely without live air pressure. For load-holding requirements, consider the SAIL or BSAI series instead. This model uses PT tapered ports and is dimensionally interchangeable per ISO 15552.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX45-20S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX45-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 45 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 SAIJ80BX45-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×45 | 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 SAIJ80BX45-20S Is Used
Machine Changeover
Quickly fine-tune the 25 to 45mm retract stop during product size changes on a packaging line without swapping out the entire cylinder.
Variable End-Stop
Provides a precise mechanical stop for seating components, allowing operators to dial back the stroke up to 20mm to accommodate varying material thicknesses.
Corrosive Assembly
The SUS304 stainless steel rod makes this 80mm bore cylinder ideal for short-stroke clamping and joining tasks in washdown or mildly corrosive environments.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX45-20S the Right Cylinder?
Choose this 80mm bore adjustable cylinder when you need precise end-position tuning on a short-stroke machine setup. If your application requires less force, stepping down to a 63mm bore yields 1559N at 0.5 MPa. The 25mm stainless steel rod and M20x1.5 thread provide excellent rigidity and side-load capacity, though any stroke exceeding 300mm would require an external guide. This SAIJ variant supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2. The integrated magnet works seamlessly with AirTAC CMSE reed and DMSE electronic sensors.
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 SAIJ80BX45-20S FAQ
At the maximum pressure of 1.0 MPa, it can deliver up to 513 kgf.
The nominal stroke is 45mm, but the rear adjuster allows you to mechanically shorten the effective travel by up to 20mm. This creates a usable stroke window of 25 to 45mm, enabling fine-tuning of the end position at commissioning without needing external stops.
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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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