Airtac SAIJ80 Adjustable Cylinder SAIJ80BX290-30
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX290-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 290mm 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
- Stroke290 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 SAIJ80BX290-30
The AirTAC SAIJ80X290-30 is a double-acting, double-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 290 mm stroke that can be fine-tuned down by up to 30 mm, creating a precise 260-290 mm usable travel window during commissioning.
This variant is configured with a SUS304 stainless steel rod (code B) for superior corrosion resistance and ships without a magnet. 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 rear stopper sets the travel end-position but does not lock the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX290-30 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX290-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 290 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 SAIJ80BX290-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×290 | 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 SAIJ80BX290-30 Is Used
Variable End-Stop Positioning
Dial in the exact 260-290 mm retract distance during machine setup to accommodate different material thicknesses without adding external stopper blocks.
Product Size Changeover
Quickly reconfigure the stroke window on packaging lines when switching between product sizes, leveraging the 25 mm rod and M20x1.5 thread for robust actuation.
Corrosive Assembly Lines
Utilize the SUS304 stainless steel rod in humid or washdown manufacturing environments where standard carbon steel rods would degrade over time.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX290-30 the Right Cylinder?
Select this 80 mm bore cylinder when an application requires substantial thrust but demands exact end-position tuning without swapping components. Because the 290 mm stroke exceeds 300 mm when fully extended, ensure you use an external guide to support the rod and mitigate side-loading. For a fixed end-stop without the adjuster, a standard SAI cylinder is sufficient.
To match this exact configuration for an ISO 15552 replacement, specify an 80 mm bore, 290 mm stroke, 30 mm adjustment range, PT tapered port threads, SUS304 (B) rod material, no magnet, and a compatible mounting bracket. Remember that the SAIJ rear adjuster and air cushions only decelerate the load; they do not function as a lock. For load-holding without live air pressure, consider an AirTAC SAIL or BSAI cylinder.
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 SAIJ80BX290-30 FAQ
At the maximum 1.0 MPa pressure, it can deliver up to 513 kgf.
The rear adjusting screw acts as an external stopper, allowing you to shorten the effective stroke from its 290 mm nominal length down to 260 mm. This creates a 260-290 mm travel window for fine-tuning at commissioning, but it does not lock the load without continuous air pressure.
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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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