Airtac SAIJ80 Adjustable Cylinder SAIJ80AX350-100S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX350-100S 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 a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ80 mm
- Stroke350 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX350-100S
The AirTAC SAIJ80X350-100-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 250-350 mm usable travel window from its 350 mm nominal stroke. Delivering 4523N of push force at 0.9 MPa, this 80mm bore actuator handles demanding positioning tasks. It is dimensionally interchangeable per ISO 15552 standards without relying on tie-rod construction.
This specific SKU ships with a SUS420J2 stainless steel rod (option A) for superior corrosion resistance and includes a magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors. The extruded aluminum barrel provides sensor grooves on both sides, while the rear adjuster allows you to fine-tune the retract end position at commissioning without adding external stops.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX350-100S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX350-100S |
|---|---|
| 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80AX350-100S
| 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 SAIJ80AX350-100S Is Used
Variable End-Stop Positioning
Dial in the exact retract distance between 250 and 350 mm during machine commissioning to accommodate varying product sizes without swapping the cylinder.
Product Changeover Lines
Rapidly adjust the travel end-stop on packaging or sorting conveyors when switching between different carton lengths or package profiles.
Machine Setup Tuning
Fine-tune the final end position during initial equipment setup to resolve mechanical timing issues without installing bulky external stopper blocks.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX350-100S the Right Cylinder?
Choose this 80mm bore adjustable-stroke model when your machine setup requires variable end stops or product-size changeovers on the fly. If you need less force, stepping down to a 63mm bore yields 2805N at 0.9 MPa, but the 80mm bore is ideal for heavier payloads. Because the stroke is 350mm, an external guide is recommended to prevent excessive side-loading on the 25mm rod.
The rear adjuster acts strictly as a travel stop to decelerate the load, not as a lock; it will not hold the load without live air. For dead-end holding without pressure, consider an AirTAC SAIL or BSAI cylinder. To replace this ISO 15552 unit, match the 80mm bore, 350mm stroke, 100mm adjustment, PT G3/8 ports, and -S magnet, selecting from the SAIJ mounting set: Basic, FA, LB, TC, FTC, TCM1, or 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 SAIJ80AX350-100S FAQ
At an operating pressure of 0.9 MPa, this 80mm bore cylinder provides 4523N of push force and 4071N of pull force. It operates at speeds between 30 and 800 mm/s.
The rear adjuster allows you to trim the 350mm nominal stroke back by up to 100mm, creating a usable travel window of 250-350mm. This stopper decelerates the travel end but does not lock the load without live air pressure.
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