Airtac SAIJ40 Adjustable Cylinder SAIJ40BX150-100S
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX150-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 150mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ40 mm
- Stroke150 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX150-100S
The AirTAC SAIJ40X150-100-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 628N of push force and 528N of pull force at 0.5 MPa. By integrating a 100mm adjustment mechanism on a 150mm nominal stroke, this SKU provides a usable travel window of 50-150mm, allowing precise end-position tuning without swapping out the entire actuator.
This configuration features a SUS304 stainless steel rod (option B) for superior corrosion resistance and uses PT tapered ports sized G1/4. The extruded aluminum barrel includes sensor grooves on both sides, and because this model includes a magnet (-S), it directly supports AirTAC CMSE reed and DMSE electronic solid-state switches for position feedback.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX150-100S Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX150-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 150 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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, 30 mm |
| Max stroke | Up to 1200 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ40 Adjustable Cylinder SAIJ40BX150-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | 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 SAIJ40 Adjustable Cylinder SAIJ40BX150-100S Is Used
Product Changeover
Dial the stroke down from 150mm to 50mm instantly on packaging lines handling different carton sizes, eliminating the need to physically swap cylinders during format changes.
End-Stop Calibration
Fine-tune the retracted end position during machine commissioning using the rear screw, achieving precise mechanical alignment without adding bulky external stopper blocks.
Corrosive Assembly Tasks
Leverage the SUS304 stainless steel rod for light assembly tasks in washdown or mildly corrosive environments where standard carbon steel rods would degrade.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX150-100S the Right Cylinder?
Choose this 40mm bore when an application requires approximately 628N push force at 0.5 MPa; stepping down to a 32mm bore drops thrust to 402N, while a 63mm bore raises it to 1559N. The 100mm adjustment range is ideal for machines processing varying product sizes, as operators can dial back the stroke from 150mm down to 50mm during changeovers rather than installing external stops.
For any stroke at or above 300mm, an external guide is recommended to manage side loads, though this 150mm unit relies on its 16mm rod and M12x1.25 thread for standard stability. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air; for true load-holding, consider an external rod lock or the AirTAC SAIL series. This actuator uses the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting FB, CA, CB, and CR brackets.
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 SAIJ40 Adjustable Cylinder SAIJ40BX150-100S FAQ
At 0.5 MPa operating pressure, this 40mm bore cylinder provides 628N of push force and 528N of pull force. At the maximum 1.0 MPa pressure, it achieves a push force of 1130N.
The rear adjuster acts as a mechanical stop that lets you trim the effective travel back by up to 100mm. On this 150mm nominal stroke cylinder, it creates a usable travel window of 50-150mm, though it does not lock the load without continuous air pressure.
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