Airtac SAIJ100 Adjustable Cylinder SAIJ100BX210-75
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX210-75 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 SAIJ100BX210-75
The AirTAC SAIJ100X210-75 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 135 to 210 mm, allowing you to dial back the nominal 210 mm stroke by up to 75 mm during commissioning. This bore size delivers 5497 N of push force at 0.7 MPa, making it well-suited for heavier handling tasks.
This variant uses a SUS304 stainless steel rod for corrosion resistance and features PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides. If you need position feedback, you can add a magnet (-S) to use CMSE reed or DMSE electronic solid-state sensors.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX210-75 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX210-75 |
|---|---|
| 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 SAIJ100BX210-75
| 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 SAIJ100BX210-75 Is Used
Machine Changeover
Dial in the 135-210 mm travel window on the fly when switching product sizes, eliminating the need to physically swap out cylinders or bolt on external mechanical stops.
End-Position Tuning
Fine-tune the retract end-position during initial commissioning to perfect a pressing or lifting motion, absorbing mechanical tolerances without disassembling the fixture.
Heavy Payload Handling
Leverage the 5497 N push force at 0.7 MPa to move heavy assemblies, using the stainless steel rod to endure demanding industrial environments.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX210-75 the Right Cylinder?
Choose this 100 mm bore when an 80 mm bore (providing 3518 N push at 0.7 MPa) is insufficient, but a 125 mm bore (8590 N) is excessive. The 75 mm adjustment range is ideal for product changeovers on a line, letting you fine-tune the end position without swapping the cylinder or adding external stops. Since the total stroke is 210 mm, ensure adequate external guiding for any heavy side loads.
To match this ISO 15552 interchangeable cylinder, specify the 100 mm bore, 210 mm stroke, 75 mm adjustment, PT ports, and SUS304 (B) rod material. Note that the rear adjuster acts only as a travel stop and does not hold the load without live air; for load-holding without pressure, consider the SAIL or BSAI series. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and 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 SAIJ100BX210-75 FAQ
At a 0.7 MPa operating pressure, this 100 mm bore cylinder generates 5497 N of push force and 3681 N of pull force. At 0.9 MPa, the push force increases to 7068 N.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective stroke from 210 mm down to as little as 135 mm. It sets the travel end and relies on the air cushion for deceleration, but it is not a lock and will not hold the load without continuous air pressure.
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