Airtac SAIJ80 Adjustable Cylinder SAIJ80AX155-50S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX155-50S 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 SAIJ80AX155-50S
It features a 155mm nominal stroke that can be fine-tuned down by up to 50mm, creating a precise 105-155mm usable travel window for product changeovers. The PT tapered ports and extruded aluminum barrel ensure robust pneumatic performance.
This variant includes a SUS420J2 stainless steel rod (code A) for superior corrosion resistance and carries the -S magnet option for seamless integration with AirTAC CMSE reed and DMSE electronic sensors. The rear screw acts purely as a travel stop to dial in end positions without adding external stops, though it does not lock the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX155-50S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX155-50S |
|---|---|
| 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 SAIJ80AX155-50S
| 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 SAIJ80AX155-50S Is Used
Machine Changeover
Dial in the 105-155mm travel window during product size transitions without physically replacing the cylinder or adding external mechanical stops.
End-Position Tuning
Fine-tune the retract end-position at commissioning using the rear screw to perfect the deceleration point for varying workpiece heights.
Adjustable Ejection
Handle varied part ejection distances on a single line, leveraging the 2513N base thrust to push components safely out of a machining area.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX155-50S the Right Cylinder?
If your setup needs less force, stepping down to a 63mm bore yields 1559N at 0.5 MPa. The adjustable stroke is ideal for commissioning fine-tunes or accommodating multiple product sizes on one line, negating the need to swap out a fixed-stroke SAI cylinder.
To replace an ISO 15552 cylinder, match the 80mm bore, 155mm stroke, 50mm adjustment, G3/8 PT ports, and the -S magnet. The mounting footprint uses the SAIJ subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2. For load-holding without live air, select a SAIL or BSAI cylinder, as this adjuster is not a brake. Since the stroke is under 300mm, side-load stress is minimal, but external guides are still recommended for heavy lateral loads.
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 SAIJ80AX155-50S FAQ
At 0.7 MPa, the push force increases to 3518N.
The rear adjuster screw allows you to shorten the 155mm nominal stroke by up to 50mm, providing an effective travel range of 105-155mm. It functions as a stop to set the end position and does not lock the load.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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