Airtac SAIJ80 Adjustable Cylinder SAIJ80AX155-30S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX155-30S 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 SAIJ80AX155-30S
The AirTAC SAIJ80X155-30-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 155 mm travel by up to 30 mm. This creates a precise 125-155 mm usable stroke window, ideal for fine-tuning end positions during commissioning without swapping the unit or adding external stops.
The integrated magnet supports position sensing via AirTAC CMSE reed and DMSE electronic switches, fitting neatly into the dual-side sensor grooves of the extruded aluminum barrel. This model uses PT tapered ports and includes adjustable air cushions at both ends to manage deceleration. Remember that the rear adjuster acts strictly as a travel stop and does not hold the load without live air pressure; for true load-holding, consider the SAIL or BSAI series.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX155-30S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX155-30S |
|---|---|
| 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 SAIJ80AX155-30S
| 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 SAIJ80AX155-30S Is Used
Machine Setup & Changeover
Dial in the exact 125-155 mm end position during product size changeovers without replacing the cylinder or bolting on external stops.
Variable End-Stop Tuning
Fine-tune the retract distance on packaging equipment by adjusting the rear screw, accommodating material thickness variations on the fly.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX155-30S the Right Cylinder?
The adjustable 125-155 mm travel window is perfect for product changeovers on a line, letting operators set variable end-stops on the fly instead of installing a fixed-stroke SAI cylinder.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 155 mm stroke, 30 mm adjustment, PT port thread, and the -S magnet requirement. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and 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 SAIJ80AX155-30S FAQ
The rear adjuster screw lets you shorten the 155 mm nominal stroke by up to 30 mm, providing a usable travel window of 125-155 mm. The adjuster acts as a mechanical stop to set the end position and works alongside the adjustable air cushions for deceleration.
At 0.7 MPa, the push force increases to 3518 N. The cylinder operates at speeds of 30-800 mm/s.
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1-Year Warranty
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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Most inquiries answered within 7-8 hours.
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