Airtac SAIJ80 Adjustable Cylinder SAIJ80BX90-20S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX90-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 90mm 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
- Stroke90 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX90-20S
The AirTAC SAIJ80X90-20-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel down from the 90 mm nominal stroke to a precise 70-90 mm window. Delivering 2513 N of push force at 0.5 MPa, it provides robust actuation for mid-weight machinery. This variant includes a SUS304 stainless steel rod for superior corrosion resistance and a built-in magnet for position sensing.
The rear adjuster acts purely as a mechanical stop to set the retract end position during commissioning or product changeover, meaning it cannot hold the load without continuous live air pressure. You can mount CMSE reed or DMSE electronic sensors directly into the extruded aluminum barrel's dual sensor grooves. It supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2 brackets.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX90-20S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX90-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 90 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 SAIJ80BX90-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×90 | 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 SAIJ80BX90-20S Is Used
Machine Changeover
Dial in the 70-90 mm travel window during product size changeovers on a packaging line without replacing the actuator or adding external stopper blocks.
End-Position Tuning
Fine-tune the retract end-stop during commissioning to perfectly time a pressing or lifting operation, absorbing mechanical tolerance variations.
Corrosive Assembly Lines
Leverage the SUS304 stainless steel rod and 2513 N output for robust component placement in washdown or mildly corrosive industrial environments.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX90-20S the Right Cylinder?
Choose this 80 mm bore when your application requires the 2513 N push force at 0.5 MPa, which sits neatly between the 1559 N of a 63 mm cylinder and the 3927 N of a 100 mm unit. The adjustable stroke is ideal for setups requiring variable end-stops without physically swapping cylinders, whereas a fixed-stroke SAI is better for rigid, unchanging travel. For true load-holding without air pressure, you must use an external rod lock or specify a SAIL or BSAI cylinder.
To match this SKU exactly for an ISO 15552 replacement, configure: 80 mm bore, 90 mm stroke, 20 mm adjustment range, PT tapered port thread, SUS304 (B) rod material, and the -S magnet option. The 25 mm piston rod and M20x1.5 thread handle high side loads well, but any stroke of 300 mm or greater on this bore would still require an external guide to prevent binding.
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 SAIJ80BX90-20S FAQ
The rear adjuster screw lets you shorten the 90 mm nominal stroke by up to 20 mm, creating a usable 70-90 mm travel window. It acts as a mechanical stop for end-position tuning and is not a lock, so it cannot hold the load without live air pressure.
At 0.5 MPa operating pressure, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. The -S option includes a magnet for use with AirTAC CMSE reed and DMSE electronic sensors mounted in the barrel grooves.
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 SAIJ80BX90-20S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.