Airtac SAIJ80 Adjustable Cylinder SAIJ80BX500-100
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX500-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 500mm 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
- Stroke500 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX500-100
The AirTAC SAIJ80X500-100 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 500 mm stroke that can be fine-tuned down by up to 100 mm, creating a precise 400-500 mm usable travel window. In the 80 mm bore class, it generates 4523 N of push force at 0.9 MPa, making it suitable for heavy-duty positioning tasks.
This unit is configured with a SUS304 stainless steel rod for superior corrosion resistance and includes PT tapered port threads. The extruded aluminum barrel integrates sensor grooves on both sides, though this specific SKU is supplied without a magnet. You can fine-tune the retract end-position at commissioning without swapping the cylinder or adding external stops, while the rear screw acts purely as a travel stop and not a load-holding lock.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX500-100 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX500-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 500 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 SAIJ80BX500-100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×500 | 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 SAIJ80BX500-100 Is Used
Variable End-Stop Tuning
Dial in the exact 400-500 mm retract distance during machine commissioning to accommodate different product widths without adding external hard stops.
Line Changeover
Quickly adjust the stroke window on packaging conveyors to handle varying package sizes on the fly, reducing downtime between production runs.
Heavy-Duty Positioning
Leverage the 4523 N push force at 0.9 MPa to move heavy pallets or fixtures, using the fine-tune adjuster to set the precise resting position.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX500-100 the Right Cylinder?
Choose this 80 mm bore when an application requires more force than the 63 mm class (which provides 2805 N push at 0.9 MPa) but does not need the full 7068 N output of the 100 mm size. The adjustable 400-500 mm travel window is ideal for product-size changeovers on a line, allowing operators to dial in the exact retract distance without machining new hard stops. Because the stroke is 500 mm, the M20x1.5 piston rod will experience leverage forces under load; an external guide should be used to prevent excessive side-loading and premature seal wear.
When specifying a replacement, verify the 80 mm bore, 500 mm nominal stroke, 100 mm adjustment range, PT port threads, and the absence of a magnet. This SAIJ cylinder supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options. Note that the rear adjuster and air cushions only decelerate the travel end; to hold a load securely without live air pressure, select a SAIL locking cylinder or an external rod lock.
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 SAIJ80BX500-100 FAQ
At 0.9 MPa operating pressure, this 80 mm bore cylinder generates 4523 N of push force and 4071 N of pull force. It can deliver a maximum thrust of 513 kgf at 1.0 MPa.
The rear adjuster screw allows you to shorten the effective stroke by up to 100 mm from the nominal 500 mm, providing a usable travel window of 400-500 mm. The adjuster acts as a mechanical stop to set the end position and does not lock the load without air pressure.
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