Airtac SAIJ40 Adjustable Cylinder SAIJ40BX190-10S
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX190-10S 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 SAIJ40BX190-10S
The AirTAC SAIJ40X190-10-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 190 mm stroke that can be fine-tuned backward by up to 10 mm, yielding a usable travel window of 180 to 190 mm. Operating at 0.7 MPa, it delivers 879 N of push force and 528 N of pull force, making it well-suited for mid-range actuation tasks.
This variant features a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for position sensing. It supports AirTAC CMSE reed and DMSE electronic sensors housed in the dual-side barrel grooves. The SAIJ mounting set omits FB, CA, CB, and CR options, utilizing a streamlined subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2 interfaces.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX190-10S Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX190-10S |
|---|---|
| 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 SAIJ40BX190-10S
| 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 SAIJ40BX190-10S Is Used
Machine Commissioning
Dial in the exact 180-190 mm end-of-stroke position during setup to perfect product placement without machining custom spacers.
Product Changeover
Quickly adapt the cylinder travel window on packaging lines when switching between slightly different package sizes.
Precision End-Stops
Use the 10 mm rear adjustment screw to trim the stroke and guarantee precise mechanical positioning for automated assembly tasks.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX190-10S the Right Cylinder?
Select this 40 mm bore cylinder when your assembly requires exact end-position tuning at commissioning without the hassle of external stops or swapping a fixed-stroke SAI unit. If your application demands higher thrust, stepping up to the 50 mm bore yields 1374 N of push force at 0.5 MPa. Conversely, downsizing to a 32 mm bore drops the output to 402 N at 0.5 MPa.
For ISO 15552 replacement matching, verify the 190 mm stroke, 10 mm adjustment range, PT tapered port threads, and the -S magnet requirement. Remember that the rear adjuster functions strictly as a travel stop to set deceleration, not as a locking device; a plain SAIJ cannot hold a load without live air pressure. For fail-safe load holding, consider the SAIL or BSAI series.
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 SAIJ40BX190-10S FAQ
The rear adjuster screw allows you to shorten the effective travel by up to 10 mm, creating a usable stroke window of 180 to 190 mm. This lets you fine-tune the end position at commissioning without changing the cylinder.
At 0.7 MPa, the SAIJ40X190-10-S provides 879 N of push force and 528 N of pull force. It operates at speeds of 30-800 mm/s and features a G1/4 port.
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