Airtac SAIJ80 Adjustable Cylinder SAIJ80BX550-100S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX550-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 550mm 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
- Stroke550 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX550-100S
The AirTAC SAIJ80X550-100-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that permits fine-tuning of the retract end position. With a nominal 550 mm stroke and a 100 mm adjustment range, it provides a usable travel window of 450 to 550 mm. This allows precise end-position calibration during commissioning without adding external stops. The 80 mm bore generates 3518 N of push force and 2268 N of pull force at 0.7 MPa, making it suitable for heavy-duty positioning tasks.
This variant includes a SUS304 stainless steel rod (code B) for superior corrosion resistance and carries the -S magnet option for position sensing. The dual-side sensor grooves accept AirTAC CMSE reed and DMSE electronic solid-state switches. It features a PT tapered G3/8 port, 36 mm cushions at both ends, and a 25 mm rod with an M20x1.5 thread. The extruded aluminum barrel design omits tie-rods, and the mounting set is limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX550-100S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX550-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 550 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 SAIJ80BX550-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×550 | 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 SAIJ80BX550-100S Is Used
Product Changeover
Dial the stroke from 550 mm down to 450 mm during packaging format changes, using the rear stopper to set new end positions without mechanical teardown.
Heavy Press Positioning
Leverage the 3518 N push force at 0.7 MPa to move heavy jigs into place, using the 100 mm adjustment window to fine-tune the final contact point.
Variable End-Stop Assembly
Use the SUS304 stainless steel rod in machinery requiring high corrosion resistance, adjusting the retract position dynamically based on varying part dimensions.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX550-100S the Right Cylinder?
Selecting this 80 mm bore over a smaller 63 mm bore upgrades your thrust from 2182 N to 3518 N at 0.7 MPa, while stepping up to a 100 mm bore would push 5497 N. The 100 mm adjustable stroke is ideal for production lines running mixed product sizes, allowing rapid changeover by dialing the travel back from 550 mm to 450 mm without swapping the cylinder. Because the 550 mm stroke is relatively long, an external guide is recommended to prevent rod side-loading and premature seal wear.
For a direct ISO 15552 interchangeable replacement, match the 80 mm bore, 550 mm nominal stroke, 100 mm adjustment, PT G3/8 port, SUS304 B rod material, and the -S magnet. The rear adjuster acts strictly as a travel stop to decelerate the load, not as a lock. If your application requires position holding without live air pressure, use an AirTAC SAIL pneumatic lock or BSAI clamp-lock cylinder instead.
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 SAIJ80BX550-100S FAQ
At 0.7 MPa, this 80 mm bore cylinder provides 3518 N of push force and 2268 N of pull force. At 0.9 MPa, the push force increases to 4523 N. The operational speed range is 30-800 mm/s, supported by 36 mm air cushions at both ends.
The rear adjuster screw allows you to shorten the effective travel from the 550 mm nominal stroke by up to 100 mm, creating a usable 450 to 550 mm window. This stopper decelerates the piston at the retract end but does not lock the load; live air is required to hold position.
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