Airtac SAIJ40 Adjustable Cylinder SAIJ40BX190-10
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX190-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 190mm 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
- Stroke190 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX190-10
The AirTAC SAIJ40X190-10 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that permits you to dial back the nominal 190 mm travel by up to 10 mm, yielding a precise 180-190 mm usable window. This specific configuration utilizes a SUS304 stainless steel single rod and PT tapered port threads, making it highly suitable for environments where corrosion resistance and sealed fitting integrity are paramount. Delivering 628 N of push force and 528 N of pull force at 0.5 MPa, it fits neatly into the mid-range force class.
Because the adjustment mechanism acts purely as a mechanical stop on the retract end, it decelerates the travel rather than locking the load in place. The extruded aluminum barrel includes sensor grooves on both sides for straightforward position feedback integration. You can fine-tune the end position at commissioning without physically swapping the cylinder or fabricating external stops, which is critical for lines running mixed product sizes.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX190-10 Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX190-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 190 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 SAIJ40BX190-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | 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 SAIJ40 Adjustable Cylinder SAIJ40BX190-10 Is Used
Machine Changeover
Dial in the 180-190 mm retract position precisely during product size transitions without swapping out the entire cylinder assembly.
End-Stop Calibration
Fine-tune the final resting position of tooling at commissioning, absorbing minor mechanical tolerances via the 10 mm rear adjuster screw.
Variable Diverter Stops
Adjust the stopping distance on the fly for different package lengths on a conveyor line, using the rear stop to set the exact travel limit.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX190-10 the Right Cylinder?
Select this 40 mm bore when an application requires approximately 628 N of thrust at 0.5 MPa, stepping down from a 50 mm bore (982 N) if your force requirements are lower, or moving up from a 32 mm bore (402 N) when extra thrust margin is needed. The primary reason to choose this SAIJ adjustable model over a fixed-stroke SAI cylinder is to gain a 10 mm trimming window, allowing operators to perfect the retract end-position during machine setup or product changeover without adding bulky external stops. If your process demands true load-holding without continuous live air pressure, this cylinder is not a lock; you should evaluate the SAIL (pneumatic lock) or BSAI (clamp-lock) series instead.
For accurate ISO 15552 dimensional interchangeability, match these exact specifications: 40 mm bore, 190 mm stroke, 10 mm adjustment range, G1/4 port with PT tapered threads, SUS304 (B) rod material, and no magnet. The standard mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2. Since this 190 mm stroke is relatively long, the 16 mm rod diameter should still be paired with an external guide to prevent excessive side-loading and premature seal wear.
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 SAIJ40BX190-10 FAQ
At a 0.5 MPa operating pressure, this 40 mm bore cylinder provides 628 N of push force and 528 N of pull force. If you increase the pressure to 0.7 MPa, the push force rises to 879 N.
The rear adjuster screw lets you shorten the effective stroke by up to 10 mm, creating a 180-190 mm usable travel window. It acts as a mechanical stop to set the end position and does not lock the load without live air pressure.
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