Airtac SAIJ80 Adjustable Cylinder SAIJ80BX400-30
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX400-30 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 SAIJ80BX400-30
The AirTAC SAIJ80X400-30 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 400 mm travel by up to 30 mm for a precise 370-400 mm usable window. This configuration features a SUS304 stainless steel rod for superior corrosion resistance and a PT tapered port thread for a secure, leak-free connection.
Because it is an extruded aluminum profile cylinder rather than a tie-rod design, it integrates cleanly into modern machine frames. The rear adjuster acts purely as a travel stop to fine-tune the end position during commissioning; it does not lock the load or hold position without live air pressure. For load-holding requirements, consider the SAIL or BSAI series instead.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX400-30 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX400-30 |
|---|---|
| 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 SAIJ80BX400-30
| 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 SAIJ80BX400-30 Is Used
Product Changeovers
Quickly shift the retract end-stop by up to 30 mm when running different product sizes on the same line, eliminating the need to physically swap out cylinders.
Machine Setup Tuning
Fine-tune the 370-400 mm travel window during commissioning to perfectly time the stroke without adding bulky external mechanical stops.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX400-30 the Right Cylinder?
Choose this 80 mm bore when a 50 mm bore falls short on power—stepping up from 982 N to 2513 N at 0.5 MPa provides the necessary thrust for heavier tooling. The adjustable stroke is ideal for product changeovers, letting you shift the end-stop by up to 30 mm without physically swapping the cylinder. When matching an ISO 15552 replacement, verify the 400 mm stroke, 30 mm adjustment range, PT port, and mounting style.
With a 400 mm stroke, the 25 mm rod and M20x1.5 rod thread provide rigidity, but an external guide is highly recommended to prevent excessive side-loading on the piston. This model supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options.
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 SAIJ80BX400-30 FAQ
The rear adjusting screw acts as a mechanical stop that lets you shorten the effective stroke by up to 30 mm, providing a usable travel window of 370-400 mm. It only sets the end position and 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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