Airtac SAIJ100 Adjustable Cylinder SAIJ100BX190-40
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX190-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 190mm 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
- Stroke190 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX190-40
The AirTAC SAIJ100X190-40 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 150 to 190 mm, allowing you to dial back the 190 mm nominal stroke by up to 40 mm during commissioning. This bore size generates 3927 N of push force and 3681 N of pull force at 0.5 MPa, making it robust enough for heavy-duty positioning tasks.
This configuration includes a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel features sensor grooves on both sides, and while this specific unit lacks a magnet, adding one enables compatibility with CMSE reed and DMSE electronic solid-state switches. The rear stopper acts solely as a travel end stop, meaning it will not hold a load without continuous live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX190-40 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX190-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 190 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 SAIJ100BX190-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×190 | 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 SAIJ100BX190-40 Is Used
Machine Setup Calibration
Dial in the exact 150-190 mm end-position during machine commissioning to compensate for mechanical tolerances without changing hardware.
Product Changeover Stops
Quickly adjust the retract stop distance on a packaging line to handle varying product sizes on the fly.
Heavy Positioning
Leverage the 3927 N push force to move heavy pallets or fixtures into a precise working zone before an operation begins.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX190-40 the Right Cylinder?
Choose this 100 mm bore when a 63 mm bore (providing 1559 N push at 0.5 MPa) lacks the necessary thrust, but a 125 mm bore would be excessive. An adjustable stroke is preferred over a fixed SAI model when you need variable end-stops for product changeovers without physically swapping the cylinder or adding external stops.
To match this ISO 15552 footprint for a replacement, verify the 190 mm stroke, 40 mm adjustment range, PT port threads, and the SUS304 rod material. Since the nominal stroke is under 300 mm, side-load stress is moderate, but the 25 mm rod diameter handles lateral forces well compared to smaller bores. For applications requiring true load-holding without live air, consider the SAIL or BSAI locking cylinders instead.
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 SAIJ100BX190-40 FAQ
At a 0.5 MPa operating pressure, this 100 mm bore cylinder generates 3927 N of push force and 3681 N of pull force. At the maximum 1.0 MPa pressure, it can output up to 801 kgf.
The external rear adjusting screw acts as a mechanical stopper that limits the retract travel. It allows you to shorten the effective stroke from the 190 mm nominal length down to a minimum of 150 mm, creating a 150-190 mm usable window for fine-tuning.
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