Airtac SAIJ80 Adjustable Cylinder SAIJ80X300-100
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X300-100 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 SAIJ80X300-100
The AirTAC SAIJ80X300-100 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a substantial 2513N push force at 0.5 MPa, utilizing a 25mm carbon steel rod and G3/8 PT ports. The built-in rear stopper allows you to dial back the nominal 300mm stroke by up to 100mm, creating a 200-300mm usable travel window for precise end-position tuning.
This adjustable stopper lets you fine-tune the retract position during commissioning or product changeovers without swapping the cylinder or adding external stops. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting, though adding a magnet (-S) is required to use CMSE reed or DMSE electronic sensors. The rear adjuster acts only as a travel stop and deceleration aid, not a lock.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X300-100 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X300-100 |
|---|---|
| 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 SAIJ80X300-100
| 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 SAIJ80X300-100 Is Used
Machine Changeovers
Quickly adapt end-stops for different product lengths on a single line using the 100mm adjustment range.
End-Position Tuning
Fine-tune the exact retract position during commissioning without installing external mechanical stops.
High-Force Positioning
Leverage 2513N of push force at 0.5 MPa to move heavy pallets or tooling plates within a 200-300mm travel window.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X300-100 the Right Cylinder?
Select this 80mm bore when an application requires high force (2513N at 0.5 MPa) alongside flexible end-positioning. If your process needs less force, stepping down to a 63mm bore yields 1559N. The 100mm adjustment range is perfect for machinery handling multiple product sizes, allowing rapid changeovers instead of re-engineering fixed stops. Unlike a fixed-stroke SAI cylinder, this model accommodates variable end-stops directly.
For a 300mm stroke, the 25mm rod handles moderate side loads, but an external guide is recommended for unsupported loads. This cylinder uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR brackets. Because the adjuster is not a lock, use a SAIL or BSAI cylinder if you need fail-safe load holding without live air pressure.
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 SAIJ80X300-100 FAQ
At 0.5 MPa operating pressure, this 80mm bore cylinder provides 2513N of push force and 2268N of pull force. At the maximum 1.0 MPa pressure, it delivers up to 513 kgf.
The rear adjuster screw acts as a mechanical stop that lets you shorten the 300mm nominal stroke by up to 100mm, providing a usable travel window of 200-300mm. It sets the end position but does not lock the load without live air pressure.
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