Airtac SAIJ80 Adjustable Cylinder SAIJ80BX35-20S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX35-20S 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ80 mm
- Stroke35 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 SAIJ80BX35-20S
The AirTAC SAIJ80X35-20-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. The integrated magnet supports position sensing via CMSE reed or DMSE electronic switches. By turning the rear screw, you can trim the 35mm nominal stroke back by up to 20mm, creating a precise 15-35mm usable travel window for exacting setup requirements.
This adjustable stop allows you to fine-tune the retract end-position during commissioning without swapping out the entire cylinder or fabricating external stops. The extruded aluminum barrel includes sensor grooves on both sides, and the mounting interface supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 brackets. The PT tapered port threads ensure a tight, reliable pneumatic connection directly at the G3/8 port.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX35-20S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX35-20S |
|---|---|
| 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 | 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 SAIJ80BX35-20S
| 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 SAIJ80BX35-20S Is Used
Short-Stroke Clamping
Dial in the exact clamping depth on delicate workpieces by adjusting the retract stop within the 15-35mm travel window.
Machine Changeover
Quickly reconfigure end-stops for different product sizes on a packaging line without disassembling the pneumatic framework.
Sensor Integration
Leverage the built-in magnet with DMSE electronic sensors to confirm the adjusted end-position in automated assembly cells.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX35-20S the Right Cylinder?
The adjustable stroke is ideal for machine changeovers where the exact end-stop needs slight tweaking on-site. Because the rear adjuster functions strictly as a travel stop and not a locking device, it cannot hold a load without continuous live air pressure. For fail-safe load holding, consider an AirTAC SAIL or BSAI cylinder, or install an external pilot-operated check valve.
When replacing an ISO 15552 cylinder, verify the 80mm bore, 35mm stroke, 20mm adjustment range, G3/8 PT port, and the -S magnet option. The 25mm rod and M20x1.5 thread provide excellent structural rigidity. Although the stroke is short, always ensure the load is guided to prevent excessive side-loading on the rod.
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 SAIJ80BX35-20S FAQ
The rear adjuster screw acts as a mechanical stop that can shorten the 35mm nominal stroke by up to 20mm, providing a usable travel range of 15-35mm. It only sets the end-position and does not lock the load without air pressure.
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1-Year Warranty
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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Most inquiries answered within 7-8 hours.
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