Airtac SAIJ80 Adjustable Cylinder SAIJ80BX90-30
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX90-30 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 SAIJ80BX90-30
The AirTAC SAIJ80X90-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel down by 30 mm. This creates a usable stroke window of 60-90 mm, letting you dial in the exact retract end-position at commissioning without swapping components or adding external stops. The 80 mm bore delivers 2513 N of push thrust at 0.5 MPa, making it suited for heavy positioning tasks.
This variant uses a SUS304 stainless steel rod (option B) for superior corrosion resistance. It features PT tapered port threads and an extruded aluminum barrel with sensor grooves on three sides. The rear adjuster acts purely as a mechanical stop to set the travel limit; it does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX90-30 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX90-30 |
|---|---|
| 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 SAIJ80BX90-30
| 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 SAIJ80BX90-30 Is Used
Variable End-Stop Positioning
Dial in the exact retract distance between 60 and 90 mm during machine commissioning to accommodate varying product dimensions without changing the cylinder.
Heavy Product Changeover
Leverage the 2513 N push force to push heavy pallets or fixtures, adjusting the 30 mm travel window on the fly for different batch sizes.
Corrosion-Resistant Forming
Utilize the SUS304 stainless steel rod in humid or washdown environments where precise end-position tuning is required for light pressing or forming tasks.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX90-30 the Right Cylinder?
Choose this 80 mm bore if you need more force than the 50 mm class (982 N at 0.5 MPa) but want to avoid the larger footprint of a 100 mm cylinder. The adjustable stroke is ideal for product changeovers on a line where the exact end-position varies slightly by part size. Because the 90 mm nominal stroke is short, side-load stress is minimal, but you should still ensure the load is guided to prevent binding.
This model uses PT ports and a SUS304 rod. It supports the SAIJ mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). It is dimensionally interchangeable per ISO 15552. For applications requiring the load to stay in place without continuous air pressure, select a SAIL or BSAI locking cylinder instead, as this adjuster is only a stop.
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 SAIJ80BX90-30 FAQ
At 0.5 MPa operating pressure, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. At the maximum operating pressure of 1.0 MPa, it delivers up to 513 kgf.
The rear adjuster screw lets you shorten the 90 mm nominal stroke by up to 30 mm, providing an effective travel window of 60 to 90 mm. The adjuster acts as a mechanical stop to set the end position and does not function as a lock to hold the load without air pressure.
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