Airtac SAIJ40 Adjustable Cylinder SAIJ40AX80-30
The AirTAC SAIJ40 Adjustable Cylinder SAIJ40AX80-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 80mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ40 mm
- Stroke80 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 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 SAIJ40 Adjustable Cylinder SAIJ40AX80-30
The AirTAC SAIJ40X80-30 is a double-acting, double-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a nominal 80 mm stroke that can be dialed back by up to 30 mm, giving operators a 50-80 mm usable travel window for precise end-position tuning.
This model is equipped with a SUS420J2 stainless steel rod for improved corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, allowing you to mount CMSE reed or DMSE electronic sensors directly. The rear adjuster acts purely as a mechanical stop to fine-tune the retract distance and does not lock the load without live air pressure.
Airtac SAIJ40 Adjustable Cylinder SAIJ40AX80-30 Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40AX80-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 80 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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, 30 mm |
| Max stroke | Up to 1200 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 528 N | 528 N |
| 0.7 MPa | 739 N | — |
| Max (@1.0 MPa) | 108 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 SAIJ40 Adjustable Cylinder SAIJ40AX80-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×80 | 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 SAIJ40 Adjustable Cylinder SAIJ40AX80-30 Is Used
Machine Changeover
Dial in the 50-80 mm travel window during product size transitions to set new end-stops without changing the cylinder.
Assembly Positioning
Fine-tune the retract end-position at commissioning to perfectly align parts without adding external mechanical stops.
Variable End-Stops
Use the 30 mm adjustment range to accommodate multiple part profiles on a single conveyor line.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40AX80-30 the Right Cylinder?
Choose this adjustable-stroke cylinder when your assembly requires variable end-stops or frequent product-size changeovers without physically swapping out the actuator. For higher loads, a 50 mm bore provides 1374 N. Unlike a fixed-stroke SAI cylinder, the SAIJ40X80-30 lets you trim the travel back by up to 30 mm during commissioning.
To match this ISO 15552 replacement, specify a 40 mm bore, 80 mm stroke, 30 mm adjustment, PT port threads, and no magnet. Remember that the rear adjuster and air cushions only decelerate the travel end; they do not function as a brake. For load-holding without live air, select an SAIL or BSAI cylinder. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ40 Adjustable Cylinder SAIJ40AX80-30 FAQ
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 80 mm nominal stroke by up to 30 mm. This creates a 50-80 mm usable travel window for fine-tuning the end position without replacing the cylinder.
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Standard models are processed and dispatched in 3-5 business days.
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