Airtac SAIJ80 Adjustable Cylinder SAIJ80BX375-40
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX375-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 375mm 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
- Stroke375 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 SAIJ80BX375-40
The AirTAC SAIJ80X375-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel within a 335 to 375 mm window. The extruded aluminum barrel includes sensor grooves on both sides, ready for CMSE or DMSE switches if a magnet is added later.
Because the nominal 375 mm stroke is relatively long, the 25 mm rod diameter should be paired with an external guide to prevent excessive side-loading. The rear stopper mechanism acts solely as an end-position setter for product changeovers; it does not hold the load without live air pressure. For load-holding requirements without continuous air, consider an external rod lock or the AirTAC SAIL series.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX375-40 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX375-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 375 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 SAIJ80BX375-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×375 | 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 SAIJ80BX375-40 Is Used
Variable End-Stop Positioning
Dial in the exact retract distance within the 335-375 mm window during machine setup to accommodate different material lengths without changing hardware.
Product Size Changeovers
Quickly adjust the stroke stopper on packaging or conveying lines to handle varying carton sizes, reducing downtime between production runs.
Heavy-Duty Clamping
Leverage the 2513 N pull force at 0.5 MPa to secure heavy workpieces, using the rear adjuster to set the precise clamping depth.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX375-40 the Right Cylinder?
The 40 mm adjustment range is perfect for production lines running mixed product sizes, allowing operators to dial in the exact end-stop without swapping out the physical cylinder or adding external mechanical stops. When specifying a replacement, ensure you match the 375 mm stroke, 40 mm adjuster, PT port thread, and the standard SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2).
Remember that the SAIJ mounting set deliberately omits FB, CA, CB, and CR brackets. Given the 375 mm stroke, supporting the piston rod against sag and side loads is critical for maintaining seal integrity. If your process demands positive holding during an air-loss event, this adjustable stopper will not suffice; you must integrate a pilot-operated check valve or switch to a locking cylinder design.
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 SAIJ80BX375-40 FAQ
The rear adjuster screw allows you to shorten the effective travel from the nominal 375 mm down to a minimum of 335 mm. This creates a 40 mm adjustable window for fine-tuning the end position at commissioning without needing external stops.
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1-Year Warranty
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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Most inquiries answered within 7-8 hours.
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