Airtac SAIJ80 Adjustable Cylinder SAIJ80X35-20
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X35-20 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 SAIJ80X35-20
The AirTAC SAIJ80X35-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 25mm nominal travel that can be fine-tuned down by up to 20mm, creating a precise 15-35mm usable stroke window for commissioning without external stops. At 0.5 MPa, this 80mm bore generates 2513N of push force and 2268N of pull force.
This extruded aluminum barrel design includes sensor grooves on both sides for flexible mounting. It uses a robust 25mm carbon steel rod with an M20x1.5 thread to handle high side loads, and operates with PT (tapered) G3/8 ports. The rear adjuster acts purely as a mechanical stop to set the end position and does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X35-20 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X35-20 |
|---|---|
| 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 SAIJ80X35-20
| 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 SAIJ80X35-20 Is Used
End-Position Tuning
Dial in the exact 15-35mm travel window during machine commissioning to perfect clamping or pressing depth without swapping cylinders.
Product Changeover
Quickly adapt the stroke end-stop on packaging lines when handling slightly different product sizes or heights.
Variable End Stops
Use the rear mechanical stopper to set precise retraction limits for high-force assembly tooling that requires flexible positioning.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X35-20 the Right Cylinder?
Choose this 80mm bore when your application requires substantial force, stepping up from the 50mm bore (which provides 982N push at 0.5 MPa). The SAIJ80X35-20 is ideal when you need to dial in a precise end-stop during machine changeover, whereas a fixed-stroke SAI cylinder locks you into one exact position. If your process requires true load-holding without continuous air pressure, consider the SAIL or BSAI series instead.
For a drop-in ISO 15552 replacement, match the 80mm bore, 35mm stroke, 20mm adjustment range, PT G3/8 port, and standard carbon steel rod. This model supports the Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounting interfaces, omitting the FB, CA, CB, and CR options.
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 SAIJ80X35-20 FAQ
The rear adjusting screw allows you to shorten the effective stroke by up to 20mm. This transforms the 35mm nominal stroke into a 15-35mm usable travel window, letting you fine-tune the end position at commissioning without adding external stops.
At 0.5 MPa operating pressure, the SAIJ80X35-20 provides 2513N of push force and 2268N of pull force. It can reach up to 4523N push force at 0.9 MPa.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAIJ80 Adjustable Cylinder SAIJ80X35-20
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.