Airtac SAIJ40 Adjustable Cylinder SAIJ40BX145-10S
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX145-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 145mm 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
- Stroke145 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX145-10S
The AirTAC SAIJ40X145-10-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, featuring a G1/4 port and a 16mm piston rod. The integrated -10 adjustment code allows you to fine-tune the effective travel within a precise 135-145mm window without swapping out the unit.
This specific SKU includes a SUS304 stainless steel rod (option B) for superior corrosion resistance and is built with a -S magnet for position sensing. You can drop AirTAC CMSE reed or DMSE electronic solid-state switches directly into the dual-side sensor grooves on the extruded aluminum barrel. The rear screw acts purely as a travel stop to dial in the retract end position during commissioning; it is not a locking mechanism and will not hold a load without continuous live air pressure.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX145-10S Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX145-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 145 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 SAIJ40BX145-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×145 | 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 SAIJ40BX145-10S Is Used
Changeover Calibration
Dial in the 135-145mm travel window during product format changes to perfectly align stops without machining new spacer blocks.
Sensor Positioning
Leverage the built-in magnet and dual sensor grooves to mount DMSE electronic switches for precise end-of-stroke confirmation.
Corrosive Assembly Tasks
Utilize the SUS304 stainless steel rod on packaging or light-assembly machinery where moisture or wash-down chemicals are present.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX145-10S the Right Cylinder?
Select this 40mm bore adjustable cylinder when an application requires exact end-position tuning at commissioning or frequent product-size changeovers, rather than relying on a fixed-stroke SAI model. If your setup needs less thrust, stepping down to a 32mm bore yields 402N at 0.5 MPa; stepping up to a 50mm bore provides 982N. To guarantee a true ISO 15552 replacement match, confirm the 145mm stroke, 10mm adjustment range, PT tapered port threads, and the -S magnet option.
Because the 145mm stroke is relatively short, side-loading stress is minimal, but the 16mm rod still requires external guiding for heavy lateral loads. Remember that the SAIJ mounting set is limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR brackets found on other variants. For applications requiring true load-holding without pneumatic pressure, consider the SAIL pneumatic lock or BSAI clamp-lock series instead of this adjustable stopper.
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 SAIJ40BX145-10S FAQ
At a standard operating pressure of 0.5 MPa, this 40mm bore cylinder generates 628N of push force and 528N of pull force. At its maximum 1.0 MPa pressure, it achieves a push force of 1130N.
The rear adjuster screw allows you to shorten the nominal 145mm stroke by up to 10mm, creating a usable travel window of 135-145mm. This stopper simply decelerates and sets the retract end position; it does not lock the load without live air pressure.
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