Airtac SAIJ80 Adjustable Cylinder SAIJ80BX400-40
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX400-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 400mm 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
- Stroke400 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 SAIJ80BX400-40
The AirTAC SAIJ80X400-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 360-400 mm usable travel window. The barrel is extruded aluminum with sensor grooves on both sides, and the rod is SUS304 stainless steel for superior corrosion resistance.
This model uses a PT tapered port and a 25 mm rod with an M20x1.5 thread, providing robust side-load capacity. The rear stopper allows precise end-position tuning at commissioning without swapping cylinders. Remember that this adjuster acts only as a travel stop, not a lock; for load-holding without live air, consider the SAIL or BSAI series.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX400-40 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX400-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 400 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 SAIJ80BX400-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×400 | 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 SAIJ80BX400-40 Is Used
Machine Changeover
Dial in the 360-400 mm travel window during product size changes without bolting on external physical stops.
Variable End Stops
Fine-tune the retract position on the fly to accommodate varying package lengths on a packaging line.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX400-40 the Right Cylinder?
Choose this 80 mm bore when you need higher thrust than a 63 mm cylinder (which provides 1559 N at 0.5 MPa) but want to avoid the larger footprint of a 100 mm bore. The 40 mm adjustment range is ideal for product changeovers, letting you dial in the exact end-stop mechanically. Because the total stroke is 400 mm, an external guide is recommended to prevent rod binding under heavy side loads.
To replace an ISO 15552 cylinder, match the 80 mm bore, 400 mm stroke, 40 mm adjustment, PT G3/8 port, and your required mounting from the SAIJ set (Basic, FA, LB, TC, FTC, TCM1, TCM2). This SKU omits the -S magnet; adding it enables 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 SAIJ80BX400-40 FAQ
The rear adjuster screw lets you shorten the effective stroke by up to 40 mm, providing a usable travel window of 360 to 400 mm. It acts as a mechanical stop to fine-tune the end position without replacing the cylinder.
At the maximum 1.0 MPa pressure, the push force reaches 4523 N.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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