Airtac SAIJ80 Adjustable Cylinder SAIJ80AX750-20
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX750-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 750mm 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
- Stroke750 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 SAIJ80AX750-20
The AirTAC SAIJ80X750-20 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 730-750 mm usable travel window, letting you dial back the nominal 750 mm stroke by up to 20 mm during commissioning.
This variant features a SUS420J2 stainless steel piston rod (code A) for enhanced corrosion resistance and a PT tapered port thread. The extruded aluminum barrel includes sensor grooves on both sides, ready for position feedback. The rear adjuster acts purely as a mechanical stop to set the travel endpoint and does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX750-20 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX750-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 750 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 SAIJ80AX750-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×750 | 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 SAIJ80AX750-20 Is Used
Variable End-Stop Tuning
Dial in the exact 730-750 mm retraction point during machine commissioning without adding external physical stops.
Product Size Changeover
Quickly adapt the stroke endpoint on packaging lines when processing different product lengths.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX750-20 the Right Cylinder?
Choose this 80 mm bore size when you need more thrust than a 63 mm cylinder (which yields 1559 N at 0.5 MPa) but less bulk than a 100 mm unit. The adjustable-stroke design is ideal for machine setups requiring variable end-stops or product changeovers, avoiding the need to physically swap out a fixed-stroke SAI cylinder. To match this ISO 15552 footprint exactly, specify an 80 mm bore, 750 mm stroke, 20 mm adjustment, PT port thread, Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting, and no magnet (-S omitted).
Because the 750 mm stroke is long, the 25 mm rod diameter should be supported by an external guide to prevent excessive side-loading. For applications requiring the load to be held in place without continuous air pressure, the rear stopper here is not a lock; you should instead explore an AirTAC SAIL or BSAI clamp-lock cylinder.
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 SAIJ80AX750-20 FAQ
A rear-mounted adjusting screw lets you shorten the effective stroke by up to 20 mm, providing a usable travel window of 730 to 750 mm. This allows fine-tuning of the end position without swapping the cylinder.
At the maximum pressure of 1.0 MPa, the push force reaches 513 kgf.
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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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