Airtac SAIJ80 Adjustable Cylinder SAIJ80X300-100S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X300-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 300mm 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
- Stroke300 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X300-100S
The AirTAC SAIJ80X300-100-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It delivers a robust 4523N push force at 0.9 MPa and provides a generous 200-300mm usable travel window, letting you dial back the nominal 300mm stroke by up to 100mm during machine commissioning. The extruded aluminum barrel includes sensor grooves on both sides, and because this is an -S variant, it comes magnetized for precise position detection.
Equipped with a carbon steel piston rod and a heavy M20x1.5 thread, it handles demanding setups, though long 300mm travels still require an external guide to prevent side-load damage. The rear adjuster acts purely as a mechanical stop to fine-tune the end position without swapping cylinders, while the double-sided variable air cushion manages deceleration. Neither the cushion nor the stopper can hold a load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X300-100S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X300-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 300 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 SAIJ80X300-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×300 | 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 SAIJ80X300-100S Is Used
Variable End-Stop Tuning
Perfect for dialing in the exact retract position during machine setup, using the 100mm rear screw to fine-tune the 300mm stroke without adding physical spacers.
Product Size Changeover
Quickly adjust the effective travel window from 200 to 300mm to accommodate different package lengths on a packaging line.
High-Force Positioning
Leverages the 80mm bore's 4523N push force at 0.9 MPa to move heavy pallets while allowing precise end-position calibration.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X300-100S the Right Cylinder?
Choose this 80mm bore when you need high thrust that exceeds the 2805N push force of a 63mm cylinder at 0.5 MPa, but a 100mm bore would be excessive. The integrated 100mm adjustment range is ideal for product changeovers on a line, allowing you to shift the end-stop rapidly instead of installing fixed spacers. For load-holding without continuous air pressure, this cylinder will not suffice—you should look at the SAIL or BSAI series, or use an external rod lock.
When replacing an ISO 15552 cylinder, match the 80mm bore, 300mm stroke, PT G3/8 port, and the -S magnet requirement. This SAIJ model supports a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR brackets. Because the stroke is 300mm, always pair it with an external guide rail to support the rod against side loads. It operates at speeds of 30-800mm/s.
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 SAIJ80X300-100S FAQ
The rear adjuster is a mechanical stop that lets you shorten the effective travel from 300mm down to 200mm. It sets the end position but does not lock the load without live air pressure.
At 0.9 MPa, it provides a push force of 4523N and a pull force of 4057N. At 0.5 MPa, the push force is 2513N.
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