Airtac SAIJ80 Adjustable Cylinder SAIJ80X180-50
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X180-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 180mm 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
- Stroke180 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X180-50
The AirTAC SAIJ80X180-50 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 180 mm stroke that can be dialed back by up to 50 mm, creating a precise 130-180 mm usable travel window for commissioning flexibility. Delivering 4523N of push force at 0.9 MPa, it handles substantial loads while maintaining an operating speed of 30-800 mm/s.
This model features a 25 mm carbon steel rod and M20x1.5 rod thread, offering robust resistance to side loading. The extruded aluminum barrel includes sensor grooves on both sides for future integration of CMSE reed or DMSE electronic sensors. It uses a PT tapered G3/8 port and relies on a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X180-50 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X180-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 180 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 SAIJ80X180-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×180 | 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 SAIJ80X180-50 Is Used
Product Changeover Tuning
Dial in the 130-180 mm travel window during product size changes on a packaging line, using the rear stopper to set exact end positions without changing the cylinder.
Machining End-Stop Calibration
Fine-tune the approach distance of a clamping fixture at machine commissioning, trimming the 180 mm stroke back by up to 50 mm to perfect the contact point.
Variable Diverter Stroke
Adjust the pusher stroke on a conveyor sorting system to accommodate different package lengths, relying on the 80 mm bore's 4523N force to move heavy items.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X180-50 the Right Cylinder?
Choose this 80 mm bore cylinder when an application requires 4523N of push force at 0.9 MPa, stepping up from the 63 mm bore which provides 2805N. The 50 mm adjustment range is ideal for production lines running mixed product sizes, allowing operators to fine-tune end positions without swapping cylinders or adding external stops. The rear adjuster acts purely as a travel stop, meaning this cylinder cannot hold a load without live air pressure; for true load-holding, consider the SAIL or BSAI series.
As a dimensionally interchangeable ISO 15552 cylinder, it matches standard mounting footprints. To match this exact SKU, specify an 80 mm bore, 180 mm stroke, 50 mm adjustment range, PT G3/8 port, and no magnet. Because the total stroke is 180 mm, side loading is minimal, but long unsupported strokes still require an external guide to prevent rod binding.
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 SAIJ80X180-50 FAQ
At 0.9 MPa operating pressure, the 80 mm bore provides 4523N of push force and 4071N of pull force. The maximum force at 1.0 MPa is 513 kgf.
The rear adjuster screw acts as a mechanical stop that shortens the effective travel from the nominal 180 mm down to as little as 130 mm. It only sets the end position and does not lock the load without live air pressure.
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