Airtac SAIJ100 Adjustable Cylinder SAIJ100BX500-50
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX500-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 500mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ100 mm
- Stroke500 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX500-50
The AirTAC SAIJ100X500-50 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers a robust 3927N push force at 0.5MPa and provides a usable travel window of 450 to 500mm, letting you dial back the nominal 500mm stroke by up to 50mm during machine setup.
This SKU features a SUS304 stainless steel rod for superior corrosion resistance and utilizes a PT tapered port thread. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting, while the adjustable stopper allows fine end-position tuning without swapping out the entire cylinder.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX500-50 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX500-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 500 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100BX500-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | 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 SAIJ100 Adjustable Cylinder SAIJ100BX500-50 Is Used
Product Changeover
Dial in the 450 to 500mm travel window during line changeovers to accommodate different product lengths without physically swapping cylinders.
Machine Setup
Fine-tune the exact retract end-position at commissioning using the rear stopper, eliminating the need to bolt on external mechanical stops.
Variable End Stops
Adjust the stroke on the fly for automated material push-off stations that require flexible positioning based on package dimensions.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX500-50 the Right Cylinder?
Choose this 100mm bore adjustable cylinder when your application requires precise end-stop tuning over a 450 to 500mm travel window, delivering 3927N of push force at 0.5MPa. If you need less force and a smaller footprint, stepping down to an 80mm bore yields 2513N at 0.5MPa. Conversely, larger 125mm bores provide 6133N for heavier loads. Because the 500mm stroke is substantial, an external guide is recommended to prevent rod side-loading and premature wear.
Select the SAIJ over a fixed-stroke SAI when product changeovers require variable end-stops without adding external physical stops. The rear adjuster acts strictly as a travel stop and does not hold the load without live air pressure; for true load-holding without continuous air, consider an AirTAC SAIL or BSAI cylinder. This model uses a PT port, omits the magnet, and fits the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, 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 SAIJ100 Adjustable Cylinder SAIJ100BX500-50 FAQ
At 0.5MPa operating pressure, this 100mm bore cylinder provides a push force of 3927N and a pull force of 3681N. At its maximum 1.0MPa pressure, it can deliver up to 801kgf.
The rear adjuster acts as a mechanical stop that allows you to shorten the effective travel from the nominal 500mm down to a minimum of 450mm. This stopper only sets the end position and does not lock or hold the load without live air pressure.
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