Airtac SAIJ80 Adjustable Cylinder SAIJ80BX400-30S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX400-30S 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 SAIJ80BX400-30S
The AirTAC SAIJ80X400-30-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. The integrated -S magnet enables precise position detection using AirTAC CMSE reed or DMSE electronic sensors housed within the dual-side barrel grooves.
With a 400mm nominal stroke and a 30mm adjustment range, this model provides a usable travel window of 370-400mm. You can fine-tune the retract end-position at commissioning without adding external stops or swapping the cylinder. The rear adjuster acts purely as a travel stop to set the deceleration point alongside the standard air cushions; it does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX400-30S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX400-30S |
|---|---|
| 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 SAIJ80BX400-30S
| 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 SAIJ80BX400-30S Is Used
Product Changeover
Dial in the exact 370-400mm retract distance during format size changes on packaging lines without swapping hardware.
Machine Setup
Fine-tune the end-of-stroke position during commissioning to perfect seating forces without installing external mechanical stops.
Variable End Stops
Adjust the travel limit on the fly for diverter gates handling different package lengths on a single conveyor system.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX400-30S the Right Cylinder?
The adjustable 370-400mm travel window is ideal for machines undergoing frequent product-size changeovers, allowing operators to dial in the exact retract distance on the fly instead of relying on a fixed-stroke SAI cylinder. To match this ISO 15552 footprint exactly, specify an 80mm bore, 400mm stroke, 30mm adjustment, PT ports, and the -S magnet.
Because this cylinder features a 400mm stroke, the 25mm rod and M20x1.5 thread should be paired with an external guide to prevent excessive side-loading on the piston. For applications requiring true load-holding without continuous air pressure, a standard SAIJ is insufficient—consider an AirTAC SAIL pneumatic lock, a BSAI clamp-lock cylinder, or an external rod lock. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
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 SAIJ80BX400-30S FAQ
The maximum thrust at 1.0 MPa is 513 kgf.
The rear adjuster screw allows you to shorten the effective stroke by up to 30mm, creating a 370-400mm usable travel window. It functions as a mechanical stop to set the end position and does not lock the load without live air pressure.
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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.
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Most inquiries answered within 7-8 hours.
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