Airtac SAIJ80 Adjustable Cylinder SAIJ80BX40-30
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX40-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 40mm 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
- Stroke40 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 SAIJ80BX40-30
The AirTAC SAIJ80X40-30 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. The integrated adjustment screw allows you to fine-tune the effective travel down to a 10-40mm window, which is perfect for applications requiring exact end-position calibration without swapping hardware.
This extruded aluminum profile cylinder includes PT tapered ports and variable air cushions at both ends to manage kinetic energy. It supports a standard speed range of 30-800mm/s. The rear adjuster functions strictly as a mechanical stop to set the retraction endpoint, meaning it cannot hold a load dynamically without continuous live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX40-30 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX40-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 40 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 SAIJ80BX40-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×40 | 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 SAIJ80BX40-30 Is Used
Changeover Calibration
Dial in the exact 10-40mm retraction stop during product size changeovers on a packaging line without machining new spacers.
End-Position Truing
Fine-tune the final resting position of a clamping jaw to compensate for mechanical wear, using the rear screw rather than external stops.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX40-30 the Right Cylinder?
The adjustable 10-40mm travel window is ideal for machine setups that require on-the-fly end-stop tuning during product changeovers, replacing the need for fixed-stroke SAI cylinders when exact positioning is not yet finalized. For load-holding without live air pressure, consider an external rod lock or the AirTAC SAIL series instead of relying on the adjuster.
When matching your ISO 15552 replacement, verify the 80mm bore, 40mm nominal stroke, 30mm adjustment range, PT port threads, and your required mounting style. This SAIJ model supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, deliberately omitting FB, CA, CB, and CR brackets. Since this specific configuration lacks the -S magnet suffix, it will not work with CMSE or DMSE 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 SAIJ80BX40-30 FAQ
The rear adjuster acts as a mechanical stop that lets you trim the nominal 40mm stroke back by up to 30mm, creating a usable 10-40mm travel window. It only sets the end position and does not lock the load without live air.
At 0.7MPa, the push force increases to 3518N.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
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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