Airtac SAIJ80 Adjustable Cylinder SAIJ80BX450-40
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX450-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 450mm 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
- Stroke450 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 SAIJ80BX450-40
The AirTAC SAIJ80X450-40 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 410 to 450 mm, enabling precise end-position tuning without adding external stops.
This model uses PT tapered ports sized G3/8 and variable air cushions at both ends to decelerate the load. The rear adjuster acts purely as a mechanical stop and does not hold the load without live air pressure. For position holding without continuous air, consider the SAIL or BSAI series instead.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX450-40 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX450-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 450 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 SAIJ80BX450-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×450 | 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 SAIJ80BX450-40 Is Used
Variable End-Stop Setup
Dial in the exact 410 to 450 mm retract position during commissioning without swapping out the entire cylinder or adding external mechanical stops.
Product Changeover
Quickly adjust the stroke length on packaging lines when handling different product sizes, using the rear screw to fine-tune the travel distance.
Corrosive Environment Actuation
Leverage the SUS304 stainless steel rod for double-acting motion in washdown or chemical exposure areas where standard carbon steel rods fail.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX450-40 the Right Cylinder?
Choose this 80 mm bore when your application requires the 2268 N pull force at 0.5 MPa, stepping up from a 63 mm bore that offers 1402 N pull. The 40 mm adjustment window is ideal for machine setups requiring variable end-stops during product changeovers. Since the 450 mm stroke is non-standard and exceeds typical lengths, it requires careful external guiding to prevent side-load damage to the rod.
To replace an ISO 15552 cylinder, match the 80 mm bore, 450 mm stroke, 40 mm adjustment, PT G3/8 port, and Basic, FA, LB, TC, FTC, TCM1, or TCM2 mounting. Note that SAIJ omits FB, CA, CB, and CR mounts. Without a magnet, this version cannot host CMSE reed or DMSE solid-state 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 SAIJ80BX450-40 FAQ
The rear adjuster screw lets you shorten the effective stroke by up to 40 mm, creating a usable travel window of 410 to 450 mm. It functions as a travel stop and does not lock the load without live air pressure.
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1-Year Warranty
Covers non-human-caused product damage.
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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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