Airtac SAIJ80 Adjustable Cylinder SAIJ80AX80-40S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX80-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 80mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ80 mm
- Stroke80 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX80-40S
The AirTAC SAIJ80X80-40-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. Equipped with a SUS420J2 stainless steel rod and a -S magnet, it integrates seamlessly with AirTAC CMSE reed and DMSE electronic sensors housed in the dual-side barrel grooves. With a nominal stroke of 80 mm and a 40 mm adjustment range, it provides a highly versatile 40-80 mm usable travel window for precise end-position tuning.
This 80 mm bore delivers robust thrust, generating 2513 N of push force and 2268 N of pull force at 0.5 MPa. The rear stopper screw allows you to dial back the extension distance during commissioning without adding external stops or swapping the cylinder. It utilizes a PT G3/8 port and variable air cushions at both ends to manage deceleration across its 30-800 mm/s operating speed range.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX80-40S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX80-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 80 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80AX80-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | 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 SAIJ80 Adjustable Cylinder SAIJ80AX80-40S Is Used
Product Changeover
Quickly dial in the 40-80 mm travel window during format changes on packaging lines without swapping out the entire actuator.
Machine Setup
Fine-tune the rear stopper during initial commissioning to perfect the end-of-stroke position without adding external mechanical stops.
Variable End Stops
Ideal for test fixtures and clamping stations where the effective stroke needs to be adjusted on the fly between different part sizes.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX80-40S the Right Cylinder?
Choose this adjustable-stroke model when an application requires variable end-stops or frequent product-size changeovers, avoiding the downtime of physically replacing fixed-stroke SAI cylinders. If your process demands less force, stepping down to a 63 mm bore yields 1402 N of pull force at 0.5 MPa; conversely, upgrading to a 100 mm bore provides 3681 N of pull force for heavier loads. For any mounting configuration, SAIJ supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 brackets, deliberately omitting FB, CA, CB, and CR options.
Because the nominal stroke is 80 mm, external side-load guides are less critical here than on longer strokes, though the 25 mm rod and M20x1.5 thread offer excellent rigidity. Remember that the rear adjuster functions strictly as a travel stop, not a locking device; it cannot hold a load without live air pressure. For true pneumatic load-holding, consider an AirTAC SAIL or BSAI cylinder, or integrate an external rod lock. To match this exact unit, specify an 80 mm bore, 80 mm stroke, 40 mm adjustment, PT G3/8 port, SUS420J2 rod, and a -S magnet.
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 SAIJ80AX80-40S FAQ
At 0.5 MPa operating pressure, this 80 mm bore cylinder generates 2513 N of push force and 2268 N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 513 kgf.
The rear adjuster acts as a mechanical stop that lets you trim the effective stroke. With an 80 mm nominal stroke and a 40 mm adjustment code, you can set the usable travel anywhere within a 40-80 mm window. Note that this stopper only sets the end position; it does not lock the load without continuous air pressure.
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