Airtac SAIJ80 Adjustable Cylinder SAIJ80BX425-100S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX425-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 425mm 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
- Stroke425 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 SAIJ80BX425-100S
The AirTAC SAIJ80X425-100-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a usable travel window of 325-425 mm, allowing you to dial back the 425 mm nominal stroke by up to 100 mm during commissioning.
This variant includes a SUS304 stainless steel rod for corrosion resistance and a magnet for position sensing. Because the stroke exceeds 300 mm, the 25 mm rod diameter should be paired with an external guide to prevent side-loading damage on long unsupported travels.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX425-100S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX425-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 425 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 SAIJ80BX425-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×425 | 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 SAIJ80BX425-100S Is Used
Variable End-Stop Tuning
Dial in the exact retract position within a 325-425 mm window during machine commissioning without physically changing the cylinder mounting.
Product Size Changeover
Quickly adapt the stroke end-position on a packaging line when switching between different product sizes, using the 100 mm adjustment range.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX425-100S the Right Cylinder?
The 100 mm adjustment range is ideal for product-size changeovers on a line, letting you set variable end-stops without swapping the entire cylinder or bolting on external stops.
As an ISO 15552 profile cylinder, it is dimensionally interchangeable with other ISO cylinders of the same bore. To replace, match the 425 mm stroke, 100 mm adjustment, PT port, Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting, and the -S magnet. Note that the rear adjuster is a travel stop, not a lock; for load-holding without live air, use an external rod lock or pilot-operated check valve.
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 SAIJ80BX425-100S FAQ
At the maximum operating pressure of 1.0 MPa, the push force reaches 4523 N.
The rear adjuster acts as a stopper that lets you shorten the effective stroke by up to 100 mm, creating a 325-425 mm usable travel window. It only sets the end position; it does not lock the load without live air pressure.
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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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