Airtac SAIJ80 Adjustable Cylinder SAIJ80X120-100
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X120-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 120mm 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
- Stroke120 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X120-100
The AirTAC SAIJ80X120-100 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the nominal 120 mm travel down to as little as 20 mm. This creates a highly flexible 20-120 mm usable window, letting you dial in the exact retract position during commissioning without swapping hardware. In this configuration, the carbon steel rod and PT tapered port threads deliver robust performance for demanding setups.
Delivering 2513 N of push force at 0.5 MPa and 4523 N at 0.9 MPa, this 80 mm bore cylinder handles serious loads. The extruded aluminum barrel includes sensor grooves on both sides for CMSE or DMSE switches, though this specific SKU is supplied without a magnet. It is important to note that the rear adjuster acts strictly as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X120-100 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X120-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 120 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 SAIJ80X120-100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×120 | 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 SAIJ80X120-100 Is Used
Variable Product Changeover
Quickly reconfigure the 20-120 mm travel window on packaging lines when switching between different carton or product sizes without changing the cylinder.
End-Position Calibration
Fine-tune the retract stop during machine commissioning to achieve exact clamping or positioning, absorbing mechanical tolerances without adding external stops.
Adjustable Ejection Force
Leverage the 2513 N push force at 0.5 MPa to eject parts, using the rear screw to limit the forward travel distance based on specific tooling requirements.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X120-100 the Right Cylinder?
Choose this 80 mm bore if your application requires the 2513 N push force at 0.5 MPa, stepping up from a 50 mm bore that provides 982 N, or down from a 100 mm bore that yields 3927 N. The massive 100 mm adjustment range is ideal for machines processing multiple product sizes, allowing the end-stop to be reconfigured rapidly on the fly rather than installing external stops or buying a fixed-stroke SAI cylinder.
Because the nominal stroke is 120 mm, you avoid the extreme side-load risks of long unsupported rods, but always ensure the load is guided externally. If your machine requires the cylinder to hold its position without continuous air pressure, the SAIJ adjuster will not act as a lock; you should explore an AirTAC SAIL or BSAI model instead. This model uses a PT port thread, carbon steel rod, and the standard SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting FB, CA, CB, and CR options.
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 SAIJ80X120-100 FAQ
The rear adjuster acts as a mechanical stop that lets you shorten the effective stroke from the nominal 120 mm down to 20 mm, creating a highly flexible 20-120 mm travel window. It only sets the travel end and does not lock the load without live air pressure.
At 0.5 MPa, it provides 2513 N of push force and 2268 N of pull force. At the maximum operating pressure of 0.9 MPa, the push force increases to 4523 N.
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