Airtac SAIJ80 Adjustable Cylinder SAIJ80X210-75
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X210-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 210mm 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
- Stroke210 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X210-75
The AirTAC SAIJ80X210-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that provides a usable travel window of 135-210 mm. Built with an extruded aluminum barrel and a carbon steel rod, it delivers 2513 N of push thrust and 2268 N of pull thrust at 0.5 MPa. This bore size uses a G3/8 port and M20x1.5 rod thread, giving it a robust capacity to handle higher side loads than smaller bores.
The defining feature of this specific SKU is the 75 mm adjustment range, which allows you to fine-tune the retract end position during commissioning without adding external stops. It includes variable air cushions at both ends and utilizes a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) compared to standard fixed-stroke models.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X210-75 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X210-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 210 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 SAIJ80X210-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×210 | 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 SAIJ80X210-75 Is Used
Product Changeover
Dial in the retract stop by up to 75 mm to accommodate varying package lengths on a packaging line without changing out the cylinder.
End-Position Tuning
Fine-tune the exact end-of-stroke position during machine commissioning to perfect a pressing or forming operation.
Adjustable Ejector
Set specific ejection distances for different product sizes by adjusting the rear stopper rather than reprogramming the machine.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X210-75 the Right Cylinder?
Choose this 80 mm bore when an application requires more force than a 63 mm cylinder (which provides 1559 N push at 0.5 MPa), but less than the 100 mm class (3927 N). The 75 mm adjustable travel window is ideal for product-size changeovers on a line, letting you dial in the exact end-stop without physically swapping the cylinder. Because the stroke is 210 mm, an external guide is recommended to support long unsupported loads and prevent rod binding.
To match an ISO 15552 replacement, verify the 80 mm bore, 210 mm nominal stroke, 75 mm adjustment code, PT tapered port thread, and standard carbon steel rod. Note that the rear adjuster acts only as a travel stop and does not hold the load without live air; for fail-safe 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 SAIJ80X210-75 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 the maximum 1.0 MPa pressure, it can deliver up to 513 kgf.
The rear adjuster acts as an external stopper that lets you shorten the nominal 210 mm stroke by up to 75 mm, creating a usable travel window of 135 to 210 mm. It only sets the end position and does not lock the load without live air pressure.
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