Airtac SAIJ80 Adjustable Cylinder SAIJ80BX350-100
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX350-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 350mm 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
- Stroke350 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 SAIJ80BX350-100
The AirTAC SAIJ80X350-100 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel back by up to 100 mm. This yields a usable stroke window of 250 to 350 mm, letting you dial in the exact end position at commissioning without swapping out the barrel or adding external stops.
This specific SKU is configured with a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, though this unit is supplied without a magnet. At 350 mm of travel, the 25 mm rod diameter provides excellent resistance to side loads, though an external guide is still recommended for long unsupported strokes to prevent premature wear.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX350-100 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX350-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 350 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 SAIJ80BX350-100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×350 | 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 SAIJ80BX350-100 Is Used
Product Changeover
Dial in the 250 to 350 mm travel window during packaging line format changes without replacing the cylinder or bolting on external physical stops.
End-Position Tuning
Fine-tune the retract end position during machine commissioning to perfect the pressing or lifting depth of heavy 80 mm tooling.
Variable Diverter
Adjust the stroke length on a heavy-duty sorting diverter to handle varying product package lengths on the fly.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX350-100 the Right Cylinder?
The 100 mm adjustment range is ideal for machine setups requiring frequent product-size changeovers, giving you a wide 250 to 350 mm window to tune end stops on the fly. If your application requires the cylinder to hold its position or lock the load without live air pressure, note that the SAIJ rear adjuster acts only as a travel stop and not a brake; you should instead look at the SAIL or BSAI series.
When matching this ISO 15552 cylinder for a replacement, verify the 80 mm bore, 350 mm nominal stroke, PT G3/8 port, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), which omits the FB, CA, CB, and CR brackets. Because this unit lacks the -S magnet option, it cannot host CMSE reed or DMSE electronic sensors without modifying the configuration.
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 SAIJ80BX350-100 FAQ
At 0.5 MPa, the push force is 2513 N.
A rear external adjusting screw acts as a stopper, allowing you to shorten the 350 mm nominal stroke by up to 100 mm. This creates a usable travel window of 250 to 350 mm so you can set the exact retract end position without changing the cylinder itself.
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