Airtac SAIJ80 Adjustable Cylinder SAIJ80BX55-30S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX55-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 55mm 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
- Stroke55 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX55-30S
The AirTAC SAIJ80X55-30-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the travel window from 25 to 55 mm. It delivers a robust 2513 N push force at 0.5 MPa, making it well-suited for high-impact positioning tasks. The barrel is extruded aluminum with sensor grooves on both sides for flexible switch placement.
This specific SKU includes a SUS304 stainless steel rod for superior corrosion resistance and a PT tapered port thread. It is equipped with a magnet for non-contact position sensing, compatible with AirTAC CMSE reed and DMSE electronic switches. The rear adjuster acts purely as a mechanical stop to dial in the end position during commissioning; it does not lock or hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX55-30S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX55-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 55 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 SAIJ80BX55-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×55 | 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 SAIJ80BX55-30S Is Used
End-Position Calibration
Dial in the exact retract distance within the 25-55 mm window during machine commissioning without needing external stopper blocks.
Product Changeover
Quickly adjust the stroke stop on automated lines when switching between product sizes, saving setup time.
High-Force Positioning
Leverage the 2513 N push force at 0.5 MPa to move heavy pallets into a precise final position before clamping.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX55-30S the Right Cylinder?
Select this 80 mm bore cylinder when your application requires a nominal 55 mm stroke but demands precise end-position tuning during machine setup or product changeover. Instead of swapping out a fixed-stroke SAI cylinder, the SAIJ80X55-30-S lets you dial back the travel by up to 30 mm on the fly. If your thrust requirements are lower, stepping down to a 63 mm bore yields 1559 N push force at 0.5 MPa; stepping up to a 100 mm bore provides 3927 N.
Because the stroke is short, side-loading risks are minimal, but always ensure the M20x1.5 rod thread is properly aligned with your load coupling. For applications that must hold a load mechanically without continuous air pressure, this cylinder is not a lock; consider the AirTAC SAIL or BSAI series instead. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ80BX55-30S FAQ
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective stroke from its nominal 55 mm down to 25 mm. This provides a 30 mm tuning window for precise end-position calibration during commissioning.
At 0.5 MPa operating pressure, it provides 2513 N of push force and 2268 N of pull force. At the maximum operating pressure of 1.0 MPa, the push force reaches 513 kgf.
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