Airtac SAIJ80 Adjustable Cylinder SAIJ80X185-10
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X185-10 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 SAIJ80X185-10
The AirTAC SAIJ80X185-10 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 175 to 185 mm, allowing you to dial back the nominal 185 mm stroke by up to 10 mm during commissioning. Delivering a robust 4523 N of push force at 0.9 MPa, it is built to handle demanding industrial loads.
This model features a carbon steel piston rod with an M20x1.5 thread, paired with a PT tapered G3/8 port for reliable pneumatic flow. The extruded aluminum barrel includes sensor grooves on both sides. Mounting options are limited to the SAIJ subset (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting the FB, CA, CB, and CR styles found on other variants.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X185-10 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X185-10 |
|---|---|
| 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 SAIJ80X185-10
| 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 SAIJ80X185-10 Is Used
End-Position Tuning
Dial in the exact retract distance within a 175-185 mm window to perfect machine timing without machining new stop blocks.
Product Changeover
Quickly adapt an automated line to handle slightly different package sizes by adjusting the rear stopper screw on the fly.
High-Force Clamping
Leverage 4523 N of push force at 0.9 MPa to secure heavy workpieces while compensating for minor material thickness variations.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X185-10 the Right Cylinder?
Choose this 80 mm bore when your application requires more thrust than the 63 mm version (2182 N at 0.7 MPa) but does not need the massive output of the 100 mm class. The 10 mm adjustable range is ideal for fine-tuning the retract end position without adding external stops or swapping cylinders. Because the rear adjuster acts only as a travel stop and the air cushions handle deceleration, this cylinder will not hold a load without live air pressure. For drop-out prevention, consider the SAIL or BSAI series.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 185 mm stroke, 10 mm adjustment, PT G3/8 port, and your required mounting interface. The standard carbon steel rod is suited for typical environments. Although 185 mm is a moderate stroke, always ensure the M20x1.5 rod is protected from excessive side loads by using an external guide.
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 SAIJ80X185-10 FAQ
At an operating pressure of 0.9 MPa, this 80 mm bore cylinder generates 4523 N of push force and 4071 N of pull force. The maximum thrust is 513 kgf at 1.0 MPa.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective travel from the nominal 185 mm down to 175 mm. This stopper only sets the end position; it does not lock the load without continuous air pressure.
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