Airtac SAIJ80 Adjustable Cylinder SAIJ80BX425-10S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX425-10S 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 SAIJ80BX425-10S
The AirTAC SAIJ80X425-10-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the retract position. With a nominal 425 mm stroke and a 10 mm adjustment range, it provides a usable travel window of 415-425 mm. This built-in adjustability lets you dial in the exact end-of-stroke position during commissioning without adding external stops or swapping the cylinder.
This variant includes a SUS304 stainless steel rod for superior corrosion resistance and is equipped with a magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors. The extruded aluminum barrel incorporates sensor grooves on both sides for flexible switch mounting. Because the 425 mm stroke is relatively long, the 25 mm diameter rod and M20x1.5 thread provide sturdy support, but an external guide is still recommended to manage side loads on unsupported masses.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX425-10S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX425-10S |
|---|---|
| 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 SAIJ80BX425-10S
| 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 SAIJ80BX425-10S Is Used
Machine Setup & Changeover
Fine-tune the 415-425 mm retract position on the fly during machine commissioning or product size changes without physically swapping cylinders or adding external stopper blocks.
Variable End Stops
Adjust the travel end-point in packaging or conveying lines to accommodate different carton sizes or process lengths directly at the fixture.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX425-10S the Right Cylinder?
If your setup needs less force, stepping down to a 63 mm bore yields 2182 N at 0.7 MPa. If you require a fixed stroke without the need for field adjustment, the standard AirTAC SAI cylinder is a simpler alternative. For load-holding without continuous air pressure, note that this cylinder's rear adjuster acts only as a travel stop, not a lock; consider the SAIL or BSAI series for pneumatic locking needs.
To replace this unit with an equivalent ISO 15552 cylinder, match the 80 mm bore, 425 mm stroke, 10 mm adjustment range, PT tapered G3/8 port, and the -S magnet option. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 attachments, omitting the FB, CA, CB, and CR styles found on some other profile cylinders. Given the 425 mm stroke, ensure adequate guiding for the load to prevent rod bending.
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 SAIJ80BX425-10S FAQ
The rear of the cylinder features an external adjusting screw that acts as a mechanical stopper. For this model, it allows you to shorten the effective stroke by up to 10 mm, providing a usable travel window of 415-425 mm. The adjuster sets the travel end position but does not lock or hold the load without live air pressure.
At the maximum operating pressure of 1.0 MPa, the push force reaches 4523 N.
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