Airtac SAIJ80 Adjustable Cylinder SAIJ80X155-100S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X155-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 155mm 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
- Stroke155 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X155-100S
The AirTAC SAIJ80X155-100-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel within a 55-155 mm window. Delivering a 0.7 MPa push force of 3518 N, this carbon-rod unit is built for high-force operations requiring exact end-position tuning.
It includes a magnetic piston (-S) for position detection via CMSE reed or DMSE electronic sensors. The extruded aluminum barrel carries sensor grooves on both sides, and the rear stopper mechanism allows rapid end-stop changes during commissioning without swapping the cylinder.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X155-100S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X155-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 155 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 SAIJ80X155-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×155 | 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 SAIJ80X155-100S Is Used
Variable End-Stop Tuning
Dial in the precise 55-155 mm travel distance during machine commissioning without adding external mechanical stops.
Product Changeover
Quickly adjust the retract distance on packaging lines when switching between different package sizes.
High-Force Positioning
Leverage the 3518 N push force to move and position heavy assemblies with fine end-position control.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X155-100S the Right Cylinder?
Select this 80 mm bore over a 63 mm unit (2182 N at 0.7 MPa) when your application demands greater thrust, or step down to a 63 mm if 155 mm of travel is unnecessary. The 100 mm adjustment range is ideal for machines handling frequent product changeovers, allowing you to dial in the exact 55-155 mm travel distance on the fly rather than relying on fixed stops.
This SKU uses PT tapered ports and a 25 mm rod with an M20x1.5 thread. Because the stroke is 155 mm, external guiding is recommended to prevent side-load wear. Note that the rear adjuster acts as a travel stop, not a lock; the cylinder will not hold a load without live air pressure. For true fail-safe load holding, consider an external rod lock or the AirTAC 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 SAIJ80X155-100S FAQ
At 0.7 MPa operating pressure, this 80 mm bore cylinder generates a push force of 3518 N and a pull force of 2268 N. It can deliver up to 4523 N at 0.9 MPa.
The rear adjuster screw lets you shorten the 155 mm nominal stroke by up to 100 mm, providing a usable travel window of 55 to 155 mm. The adjuster functions as a mechanical stop and does not lock the load without live air pressure.
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