Airtac SAIJ80 Adjustable Cylinder SAIJ80X185-10S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X185-10S 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 SAIJ80X185-10S
The AirTAC SAIJ80X185-10-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to fine-tune the end-of-travel position during commissioning. It provides a usable travel window of 175 to 185 mm, giving you 10 mm of precise adjustment without needing to swap the cylinder or bolt on external stops. Operating at 0.5 MPa, it delivers 2513 N of push force and 2268 N of pull force, making it suitable for medium-to-heavy actuation tasks.
This model includes a standard -S magnet for position sensing via CMSE reed or DMSE electronic switches, which seat neatly into the dual-side sensor grooves on the extruded aluminum barrel. The 25 mm carbon steel rod and M20x1.5 rod thread provide robust resistance to side loads, while the PT tapered port threads match the G3/8 air supply. It supports a speed range of 30-800 mm/s and uses the standard SAIJ mounting set, which omits FB, CA, CB, and CR options.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X185-10S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X185-10S |
|---|---|
| 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 SAIJ80X185-10S
| 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 SAIJ80X185-10S Is Used
Machine Changeover
Dial in the 175-185 mm travel window during product size changes on a packaging line, avoiding the need to physically swap out the entire cylinder.
End-Stop Calibration
Fine-tune the exact retract position during machine commissioning, using the 10 mm rear adjustment screw rather than adding external stopper blocks.
Variable Diverter
Adjust the actuation length on the fly for a conveyor sorting gate that must handle varying package sizes without reprogramming the motion controller.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X185-10S the Right Cylinder?
Choose this 80 mm bore if your application requires the 2513 N thrust at 0.5 MPa (or 3518 N at 0.7 MPa); stepping down to a 63 mm bore drops the push force to 1559 N, while a 100 mm bore raises it to 3927 N. The adjustable stroke is highly beneficial for machine setups requiring a variable end-stop or product changeovers, offering flexibility that a fixed-stroke SAI cylinder cannot provide.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 185 mm stroke, 10 mm adjustment, G3/8 PT port, and -S magnet. Since the 185 mm stroke is under the 300 mm threshold, side-load risks are moderate, but an external guide is still recommended for heavy loads. Note that the rear adjuster acts only as a travel stop and does not hold the load without live air; for true load-holding, consider the SAIL or BSAI series.
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 SAIJ80X185-10S FAQ
The rear adjuster screw allows you to shorten the effective stroke by up to 10 mm, creating a usable travel window of 175 to 185 mm. It acts as a mechanical stop to fine-tune the retract position, but it does not lock or hold the load without continuous air pressure.
At 0.5 MPa, it provides 2513 N of push force and 2268 N of pull force. At 0.7 MPa, the push force increases to 3518 N, and at 0.9 MPa it reaches 4523 N.
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