Airtac SAIJ80 Adjustable Cylinder SAIJ80AX650-75S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX650-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 650mm 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
- Stroke650 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 SAIJ80AX650-75S
The AirTAC SAIJ80X650-75-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 575 to 650 mm, allowing you to dial back the end position by up to 75 mm during commissioning without adding external stops. Delivering a robust 2268 N pull force at 0.5 MPa, it handles heavy linear loads with precision.
This variant includes a SUS420J2 stainless steel rod for superior corrosion resistance and a magnetic piston for position detection. It supports AirTAC CMSE reed and DMSE electronic sensors via the dual-side sensor grooves. The rear adjuster acts purely as a travel stop to fine-tune deceleration, meaning it will not hold a load without continuous live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX650-75S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX650-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 650 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 SAIJ80AX650-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×650 | 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 SAIJ80AX650-75S Is Used
Product Changeover
Rapidly re-tune the 575-650 mm retract stop when switching machinery to handle a different pallet or package size.
Variable End Stops
Dial in the exact clamping distance on the fly without physically swapping out the entire actuator.
Machine Setup
Fine-tune the final end position during initial commissioning to perfect timing and avoid mechanical hard crashes.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX650-75S the Right Cylinder?
Choose this 80 mm bore when a 50 mm bore (offering 825 N pull at 0.5 MPa) is insufficient, but a 100 mm bore (3681 N pull) would be oversized. The 75 mm adjustment range is ideal for production lines running mixed product sizes, letting operators reposition the retract end-stop rapidly. For load-holding without live air, select a SAIL pneumatic lock or BSAI clamp-lock cylinder instead of relying on the adjuster.
Because the 650 mm stroke is substantial, the 25 mm rod and M20x1.5 thread still require an external guide to prevent side-loading damage. To match this ISO 15552 footprint, specify an 80 mm bore, 650 mm nominal stroke, 75 mm adjustment, PT tapered G3/8 ports, and a -S magnet. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
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 SAIJ80AX650-75S FAQ
It operates efficiently at speeds between 30 and 800 mm/s.
The rear adjuster lets you shorten the 650 mm nominal stroke by up to 75 mm, creating a 575 to 650 mm usable travel window. It functions as a hard stop for end-position tuning and does not lock the load without live air.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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