Airtac SAIJ80 Adjustable Cylinder SAIJ80AX350-20
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX350-20 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 SAIJ80AX350-20
The AirTAC SAIJ80X350-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 330 to 350 mm usable travel window. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting.
This variant uses a SUS420J2 stainless steel rod for enhanced corrosion resistance and features PT tapered ports. The rear adjuster acts purely as a mechanical stop to fine-tune the retract end position during commissioning without adding external stops. It is not a locking device, so live air pressure is required to hold the load.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX350-20 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX350-20 |
|---|---|
| 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 SAIJ80AX350-20
| 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 SAIJ80AX350-20 Is Used
Machining End-Stop Tuning
Dial in the exact retract position of a machining fixture during commissioning without swapping cylinders or fabricating shims.
Product Size Changeover
Quickly adapt a packaging line diverter arm to accommodate varying box lengths by adjusting the 20 mm travel window.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX350-20 the Right Cylinder?
Choose this adjustable model over a fixed SAI cylinder when your machine setup requires variable end-stops or product-size changeovers on the fly. For true load-holding without continuous air pressure, select the SAIL or BSAI series instead.
With a 350 mm stroke, the 25 mm rod and M20x1.5 thread provide robust rigidity, but an external guide is strongly recommended to prevent side-load damage over this extended travel. To match this ISO 15552 cylinder, specify an 80 mm bore, 350 mm stroke, 20 mm adjustment, PT G3/8 ports, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2).
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 SAIJ80AX350-20 FAQ
If operated at 0.7 MPa, the push force increases to 3518 N.
A rear external stopper screw lets you mechanically shorten the effective travel from 350 mm down to 330 mm. This allows precise end-position tuning during setup, though it functions as a travel stop, not a lock, and requires live air to hold position.
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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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