Airtac SAIJ100 Adjustable Cylinder SAIJ100BX800-20S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX800-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 800mm 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
- Stroke800 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX800-20S
The AirTAC SAIJ100X800-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering a robust 7068N push force at 0.9 MPa. It features a SUS304 stainless steel rod and a PT tapered port thread. The integrated -S magnet enables position sensing across both dual-side sensor grooves, interfacing directly with AirTAC CMSE reed and DMSE electronic solid-state switches for precise automation feedback.
By turning the rear adjusting screw, you can trim the effective stroke by up to 20 mm, creating a 780-800 mm usable travel window. This mechanism allows you to fine-tune the retract end-position at commissioning or during product changeover without swapping the cylinder or bolting on external stops. The adjuster acts purely as a travel stop and does not hold the load without live air pressure; for load-holding requirements, consider the SAIL or BSAI series.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX800-20S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX800-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 800 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 SAIJ100BX800-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×800 | 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 SAIJ100BX800-20S Is Used
Product Changeover
Dial in the 780-800 mm retract end-stop during format size changes on packaging lines without physically replacing the actuator.
Commissioning Calibration
Fine-tune the exact end position during initial machine setup to absorb mechanical tolerances and ensure precise movement.
Automated Assembly
Drive heavy 100 mm bore clamping and pressing operations, leveraging CMSE/DMSE sensor feedback for cycle verification.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX800-20S the Right Cylinder?
Choose this 100 mm bore when your application requires substantial thrust—stepping down to an 80 mm bore yields 4523N push at 0.9 MPa, while moving up to a 125 mm bore provides 11045N. An adjustable-stroke cylinder is selected over a fixed SAI model when machinery setup demands a variable end-stop to dial in exact positioning.
This cylinder is dimensionally interchangeable per ISO 15552 and uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting FB, CA, CB, and CR brackets. Because the 800 mm stroke is quite long, the 25 mm rod and M20x1.5 thread provide rigidity, but an external guide is strongly recommended to prevent excessive side-loading on the unsupported rod.
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 SAIJ100BX800-20S FAQ
At 0.9 MPa, this 100 mm bore double-acting cylinder provides a push force of 7068N and a pull force of 3681N. The maximum force at 1.0 MPa is 801 kgf.
The rear adjusting screw acts as a stopper that allows you to shorten the nominal 800 mm stroke by up to 20 mm, providing a 780-800 mm usable travel window. It only sets the travel end and does not lock or hold the load without continuous air pressure.
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