Airtac SAIJ80 Adjustable Cylinder SAIJ80X185-100
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X185-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 185mm 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
- Stroke185 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X185-100
The AirTAC SAIJ80X185-100 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 185 mm stroke with a 100 mm adjustment range, yielding a usable travel window of 85 to 185 mm. Delivering 2513 N of push force at 0.5 MPa, it fits mid-to-heavy pneumatic applications requiring precise end-position tuning.
This extruded aluminum profile cylinder omits the FB, CA, CB, and CR mounts, supporting a focused set of ISO 15552 mounting interfaces: Basic, FA, LB, TC, FTC, TCM1, and TCM2. It uses a PT tapered port thread and a 25 mm carbon steel rod. The rear adjuster acts purely as a travel stop for commissioning flexibility, not as a lock, so live air is required to hold the load.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X185-100 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X185-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 185 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 SAIJ80X185-100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×185 | 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 SAIJ80X185-100 Is Used
Product Changeover
Dial in the 85 to 185 mm travel window during line changeovers to accommodate varying package sizes without swapping hardware.
End-Stop Calibration
Fine-tune the retract position at machine commissioning using the rear stopper, avoiding the need for external shims.
Variable Positioning
Set multiple retract endpoints on the fly for automated assembly lines requiring flexible material handling.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X185-100 the Right Cylinder?
Choose this 80 mm bore when an application demands high thrust but variable end-stops, such as accommodating different product sizes on a single line. If the 85 to 185 mm adjustable window is excessive or the 2513 N push force at 0.5 MPa is too high, stepping down to a 63 mm bore provides 1559 N. Because the 185 mm stroke is under the 300 mm threshold, side-load concerns are minimal, though the 25 mm carbon steel rod handles standard loads well.
This model is dimensionally interchangeable with ISO 15552 cylinders. To match this exact unit, specify an 80 mm bore, 185 mm stroke, 100 mm adjustment, PT port thread, no magnet, and one of the supported mounting styles. For load-holding without continuous air pressure, consider the SAIL or BSAI variants instead of relying on the adjuster.
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 SAIJ80X185-100 FAQ
At 0.5 MPa operating pressure, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. At 0.7 MPa, the push force increases to 3518 N.
The rear adjuster allows you to trim the effective travel back by up to 100 mm from the nominal 185 mm stroke, creating an 85 to 185 mm usable window. It functions as a physical stop and does not lock the load without live air.
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