Airtac SAIJ100 Adjustable Cylinder SAIJ100BX210-40
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX210-40 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 SAIJ100BX210-40
The AirTAC SAIJ100X210-40 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering a robust 7068N of push force at 0.9 MPa. It features a SUS304 stainless steel rod and PT tapered port threads. By integrating an external stopper at the rear, this unit allows you to fine-tune the end position during commissioning without adding external stops.
With a 40mm adjustment range, this specific SKU provides a usable travel window of 170 to 210mm. The extruded aluminum barrel includes sensor grooves on both sides, ready for CMSE or DMSE switches if a magnet is added later. It utilizes a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX210-40 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX210-40 |
|---|---|
| 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 SAIJ100BX210-40
| 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 SAIJ100BX210-40 Is Used
Machine Changeover
Dial in the 170-210mm travel window during product size transitions to set new end positions rapidly without physically swapping the cylinder.
End-Position Tuning
Trim the retract stroke by up to 40mm at commissioning to perfectly align heavy clamping or pressing forces without external stopper blocks.
Assembly Line Setup
Use the 7068N thrust capacity to press components securely while relying on the rear screw to fine-tune the final resting position.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX210-40 the Right Cylinder?
Select this 100mm bore cylinder when an application requires heavy thrust combined with variable end-stops, such as accommodating product-size changes on a line. If the 7068N push force at 0.9 MPa exceeds your requirement, stepping down to an 80mm bore yields 4523N; conversely, a 125mm bore provides 11045N for heavier loads. Because the nominal stroke is 210mm, standard external guiding is recommended to manage side-load stress on the 25mm rod.
The rear adjuster acts solely as a travel stop and does not hold the load without live air. For load-holding without continuous pressure, consider the SAIL or BSAI variants. To match this cylinder for an ISO 15552 replacement, specify the 100mm bore, 210mm stroke, 40mm adjustment, PT port, SUS304 rod, and the required mounting style.
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 SAIJ100BX210-40 FAQ
It features a rear adjusting screw that allows you to shorten the effective stroke by up to 40mm. This creates a usable travel window of 170 to 210mm, letting you fine-tune the retract end position without changing the cylinder.
At an operating pressure of 0.9 MPa, the SAIJ100X210-40 provides a push force of 7068N and a pull force of 3681N. At 0.5 MPa, the push force is 3927N.
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