Airtac SAIJ80 Adjustable Cylinder SAIJ80AX155-40
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX155-40 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ80 mm
- Stroke155 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX155-40
The AirTAC SAIJ80X155-40 is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. This allows operators to dial in exact end positions during commissioning without physically swapping the cylinder or adding external mechanical stops.
This SKU features a SUS420J2 stainless steel rod (material code A) for superior corrosion resistance and utilizes PT tapered port threads (G3/8). The extruded aluminum barrel includes sensor grooves on both sides, though this specific configuration omits the internal magnet, meaning pneumatic end-position sensing must be used instead of AirTAC CMSE or DMSE electronic switches.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX155-40 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX155-40 |
|---|---|
| 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 | 2268 N | 2268 N |
| 0.7 MPa | 3175 N | — |
| Max (@1.0 MPa) | 463 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80AX155-40
| 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 SAIJ80AX155-40 Is Used
Product Changeovers
Dial in the retract stop from 155mm down to 115mm instantly when switching to a shorter package size on a filling line, avoiding mechanical teardown.
End-Position Trimming
Fine-tune the final retract position during machine setup to perfectly mate with a part ejector, compensating for mechanical tolerance stack-up.
Variable End-Stop Forming
Use the 40mm adjustment window to alter the press depth for different material thicknesses without changing out the entire actuator assembly.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX155-40 the Right Cylinder?
The adjustable 115-155mm travel window is ideal for packaging lines or equipment that undergoes frequent product-size changeovers, allowing the retract end-point to be shifted on the fly rather than machining new hard stops. The rear adjuster acts purely as a travel stop and does not lock the load; if your system needs fail-safe load holding without live air pressure, consider the AirTAC SAIL or BSAI series instead.
Because the 155mm stroke is relatively short for an 80mm bore, side-load risks are minimal, but the substantial 25mm rod diameter and M20x1.5 thread provide excellent rigidity. Ensure your mounting choice falls within the SAIJ subset (Basic, FA, LB, TC, FTC, TCM1, TCM2), as FB, CA, CB, and CR footprints are omitted from this adjustable variant.
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 SAIJ80AX155-40 FAQ
At an operating pressure of 0.5MPa, this 80mm bore cylinder provides a push (extend) force of 2513N and a pull (retract) force of 2268N. At 0.9MPa, the push force increases to 4523N.
The rear adjuster screw acts as a mechanical stop that can shorten the effective stroke by up to 40mm. For this 155mm stroke model, it creates an adjustable travel window between 115mm and 155mm, allowing you to set the exact retract end-position during commissioning without replacing the cylinder.
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