Airtac SAIJ80 Adjustable Cylinder SAIJ80BX20-20S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX20-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 20mm 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
- Stroke20 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 SAIJ80BX20-20S
Its integrated SUS304 stainless steel rod provides superior corrosion resistance, while the built-in magnet supports position sensing. The extruded aluminum barrel features sensor grooves on both sides for flexible switch placement.
With a 20mm nominal stroke and a 20mm adjustment range, this model provides a usable travel window of 0-20mm. The rear stopper screw allows you to fine-tune the end position during commissioning without adding external stops. The PT tapered port ensures a tight pneumatic seal, and the adjustable air cushions at both ends manage deceleration smoothly.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX20-20S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX20-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 20 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 SAIJ80BX20-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×20 | 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 SAIJ80BX20-20S Is Used
Short-Stroke Clamping
Ideal for clamping variable part thicknesses on a machining fixture, using the 0-20mm adjustment to set the exact grip position without reprogramming the machine.
Product Changeover
Enables rapid line changeovers by allowing operators to mechanically fine-tune the cylinder's end-of-stroke position for different product sizes on the fly.
Ejector Stations
Provides robust 2513N ejection force in compact spaces, with the rear stopper ensuring parts are pushed precisely to the conveyor transfer point.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX20-20S the Right Cylinder?
The adjustable stroke is perfect for machine setups requiring frequent product changeovers, allowing operators to dial in the exact end-stop mechanically rather than swapping out a fixed-stroke SAI cylinder. For load-holding without live air pressure, note that the rear adjuster acts only as a travel stop; you would need an external rod lock or a SAIL pneumatic lock cylinder.
Because the stroke is under 300mm, side-load risks are minimal, but the robust 25mm rod and M20x1.5 rod thread handle incidental side loads effectively. This configuration uses PT ports and supports the standard SAIJ mounting subset (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting FB, CA, CB, and CR brackets. The included magnet works seamlessly with AirTAC CMSE reed and DMSE electronic sensors.
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 SAIJ80BX20-20S FAQ
The SAIJ80X20-20-S has a nominal stroke of 20mm with a 20mm adjustment range, creating a usable travel window of 0-20mm. A rear stopper screw mechanically limits the retract stroke, allowing you to set the exact end position during commissioning. It functions as a travel stop, not a lock.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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