Airtac SAIJ80 Adjustable Cylinder SAIJ80AX35-30S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX35-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 35mm 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
- Stroke35 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX35-30S
The AirTAC SAIJ80X35-30-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that trims the nominal 35 mm stroke by up to 30 mm, yielding a highly versatile 5-35 mm usable travel window. Delivering 2513 N of push force at 0.5 MPa, it integrates a SUS420J2 stainless steel rod for superior corrosion resistance and a PT tapered port thread. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting.
Equipped with a magnet (-S), this unit supports AirTAC CMSE reed and DMSE electronic solid-state sensors. The rear adjuster acts strictly as a travel stop for end-position tuning during commissioning; it is not a lock and cannot hold the load without live air pressure. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX35-30S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX35-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 35 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 SAIJ80AX35-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×35 | 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 SAIJ80AX35-30S Is Used
Precision End-Stop Tuning
Dial in the exact clamping position within a 5-35 mm window during machine commissioning without physically swapping out the cylinder.
Product Size Changeover
Quickly adapt the travel distance on automated lines when switching between different product heights or widths.
Variable Assembly Stroke
Adjust the rear stopper on the fly to accommodate varying component dimensions in high-force assembly presses.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX35-30S the Right Cylinder?
Select this 80 mm bore cylinder when an application requires substantial thrust, such as the 2513 N push force at 0.5 MPa, combined with exacting end-position calibration. The 30 mm adjustment range is ideal for product changeovers, allowing operators to dial in the 5-35 mm travel window without swapping hardware or adding external stops. If your setup requires holding loads without continuous air pressure, consider the SAIL or BSAI series instead, as the SAIJ adjuster only provides a physical stop.
For an ISO 15552 replacement match, verify the 80 mm bore, 35 mm stroke, 30 mm adjustment, PT port thread, and the required -S magnet. The 25 mm rod and M20x1.5 thread handle high side loads well, but even with a robust rod, any long unsupported stroke demands an external guide rail. When replacing a fixed-stroke unit, ensure your mounting accessory falls within the SAIJ subset, as FB, CA, CB, and CR configurations are omitted.
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 SAIJ80AX35-30S FAQ
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 35 mm nominal stroke by up to 30 mm, creating a usable travel window of 5-35 mm. It only sets the end position and does not lock or hold the load without live air pressure.
At an operating pressure of 0.5 MPa, the SAIJ80X35-30-S generates 2513 N of push force and 2268 N of pull force. The maximum thrust is 513 kgf at 1.0 MPa.
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