Airtac SAIJ100 Adjustable Cylinder SAIJ100BX210-20S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX210-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 210mm 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
- Stroke210 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX210-20S
The AirTAC SAIJ100X210-20-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 190-210 mm usable travel window, letting you dial back the nominal 210 mm stroke by up to 20 mm during commissioning without adding external stops. It delivers a robust 3927 N push force at 0.5 MPa, making it ideal for heavy-duty positioning.
This variant uses a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for CMSE reed and DMSE electronic sensors. The extruded aluminum barrel includes sensor grooves on both sides, and the mounting interface supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 attachments (omitting FB, CA, CB, and CR).
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX210-20S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX210-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 210 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 SAIJ100BX210-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×210 | 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 SAIJ100BX210-20S Is Used
Machine Changeover
Fine-tune the 190-210 mm travel end-stop rapidly when switching production lines to accommodate slightly different product lengths without changing cylinders.
Variable Diverter Positioning
Adjust the retract position precisely on a conveyor sorting gate to handle varying package sizes, ensuring accurate routing without mechanical rebuilds.
Heavy-Duty Forming Stop
Leverage the 3927 N push force to halt heavy workpieces at a precise, adjustable end point during metal forming or assembly press operations.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX210-20S the Right Cylinder?
Choose this 100 mm bore when you need more thrust than an 80 mm cylinder (which provides 2513 N push at 0.5 MPa) but want to avoid the larger footprint of a 125 mm option. The adjustable rear stopper is perfect for product changeovers, allowing you to fine-tune the end position quickly instead of swapping a fixed-stroke SAI cylinder. For a true ISO 15552 replacement, match the 100 mm bore, 210 mm stroke, 20 mm adjustment, PT port, and -S magnet.
Because the 210 mm stroke is relatively long, ensure your setup manages side loads; the 25 mm rod and M20x1.5 thread handle moderate stress, but an external guide is recommended for unsupported loads. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air—use a SAIL or BSAI cylinder for pneumatic locking.
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 SAIJ100BX210-20S FAQ
At 0.5 MPa operating pressure, this 100 mm bore cylinder provides a push force of 3927 N and a pull force of 3681 N. At 0.7 MPa, the push force increases to 5497 N.
The rear adjusting screw allows you to shorten the effective stroke by up to 20 mm, providing a usable travel window of 190 to 210 mm. This enables precise end-position tuning at commissioning without swapping the cylinder.
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