Airtac SAIJ100 Adjustable Cylinder SAIJ100BX180-40
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX180-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 180mm 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
- Stroke180 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX180-40
The AirTAC SAIJ100X180-40 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 140-180 mm usable travel window, allowing you to trim the nominal 180 mm stroke by up to 40 mm during commissioning without swapping hardware. Equipped with a SUS304 stainless steel rod and PT tapered ports, it delivers 3927 N of push force at 0.5 MPa.
This extruded aluminum body includes sensor grooves on both sides for flexible switch mounting. The rear stopper sets the retraction end position, but it acts strictly as a travel stop and does not hold the load without live air. For true load-holding without pneumatic pressure, an external rod lock or related SAIL lock cylinder is required.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX180-40 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX180-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 180 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 SAIJ100BX180-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×180 | 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 SAIJ100BX180-40 Is Used
Machine Setup Calibration
Dial in the exact 140-180 mm retraction end-stop during initial machine commissioning to perfect seating positions without machining external spacers.
Product Size Changeovers
Quickly adjust the stroke by up to 40 mm on a packaging line when transitioning between different product dimensions, minimizing downtime.
Heavy Clamping Positioning
Leverage the 3927 N push force at 0.5 MPa to securely clamp parts while fine-tuning the clamping depth to prevent material deformation.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX180-40 the Right Cylinder?
Choose this 100 mm bore when an application requires substantial thrust, such as the 3927 N push force at 0.5 MPa, but still needs fine end-position tuning. If your setup demands less force, stepping down to an 80 mm bore yields 2513 N of push force at 0.5 MPa. The 40 mm adjustment range is ideal for product changeovers, whereas a fixed-stroke SAI cylinder suits applications with rigid, unchanging endpoints.
Because the 180 mm stroke is under the 300 mm threshold, side-load risks are moderate, but the robust 25 mm rod and M20x1.5 thread help handle offset loads. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2. Ensure you match the PT port thread and omit the -S magnet if position sensing is not required.
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 SAIJ100BX180-40 FAQ
At 0.5 MPa operating pressure, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. At 0.7 MPa, the push force increases to 5497 N.
The rear adjuster acts as a mechanical stop that lets you shorten the effective stroke from 180 mm down to 140 mm. It only sets the travel end and does not lock the load without live air pressure.
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