Airtac SAIJ100 Adjustable Cylinder SAIJ100BX150-20
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX150-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 150mm 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
- Stroke150 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX150-20
The AirTAC SAIJ100X150-20 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 130-150 mm usable travel window, allowing you to dial back the nominal 150 mm stroke by up to 20 mm during commissioning. Built with a SUS304 stainless steel rod and PT tapered ports, it delivers a robust 7068 N push force at 0.9 MPa.
This adjustable-stroke design eliminates the need to swap cylinders or bolt on external stops when fine-tuning end positions. The extruded aluminum barrel features sensor grooves on both sides, and the rod thread is M20x1.5. The rear adjuster acts purely as a travel stop for deceleration alongside the standard air cushions, meaning it will not hold a load without continuous live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX150-20 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX150-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 150 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 SAIJ100BX150-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×150 | 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 SAIJ100BX150-20 Is Used
Machine Setup Fine-Tuning
Dial in the exact 130-150 mm end position during initial commissioning without swapping out the physical cylinder or adding external mechanical stops.
Product Size Changeovers
Quickly adjust the stroke by up to 20 mm to accommodate varying package lengths on a line, ensuring precise positioning without hardware changes.
Heavy Material Handling
Leverage the 7068 N push force at 0.9 MPa to move heavy pallets or workpieces, using the rear stop to set the precise retraction distance.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX150-20 the Right Cylinder?
Choose this 100 mm bore when an application requires substantial thrust, such as the 5497 N push force available at 0.7 MPa. If your setup demands less force, stepping down to an 80 mm bore yields 3518 N at the same pressure, while keeping the same ISO 15552 mounting footprint. The SAIJ100X150-20 is selected specifically for its 20 mm adjustment window, which is ideal for product changeovers on a packaging line where exact end-of-travel positions vary slightly.
To replace this cylinder, match the 100 mm bore, 150 mm stroke, 20 mm adjustment, PT port thread, and the SUS304 (B) rod material. Note that this SKU does not include a magnet (-S), so position sensing via CMSE or DMSE switches is not supported without a different configuration. Furthermore, the SAIJ mounting set is limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR brackets. Since the stroke is 150 mm, the M20x1.5 rod handles side loads well, but any long unsupported stroke still requires an external guide.
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 SAIJ100BX150-20 FAQ
At an operating pressure of 0.9 MPa, this 100 mm bore cylinder provides a push force of 7068 N and a pull force of 3681 N. At 0.5 MPa, the push force is 3927 N.
The rear adjuster screw allows you to shorten the effective travel from the nominal 150 mm down to 130 mm. This creates a 20 mm adjustable window for fine-tuning the end position at commissioning, but the adjuster functions only as a stop and does not lock the load without live air.
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