Airtac SAIJ40 Adjustable Cylinder SAIJ40BX190-100S
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX190-100S 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 SAIJ40BX190-100S
The AirTAC SAIJ40X190-100-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a usable travel window of 90-190 mm. Delivering 628 N of push force at 0.5 MPa, it utilizes a SUS304 stainless steel rod for superior corrosion resistance. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated magnet supports position detection.
This adjustable-stroke design allows you to fine-tune the retract end position during commissioning or product changeovers without swapping the cylinder or adding external stops. The rear mechanism acts purely as a travel stop, meaning it cannot hold a load without live air pressure. For applications requiring true load-holding, consider the SAIL or BSAI series instead.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX190-100S Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX190-100S |
|---|---|
| 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 SAIJ40BX190-100S
| 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 SAIJ40BX190-100S Is Used
Product Changeover
Dial in new end positions rapidly during packaging line format changes without physically replacing the cylinder.
Prototype Setup
Fine-tune the 90-190 mm travel window during machine commissioning to find the exact kinematic stop.
Corrosive Environments
Leverage the SUS304 stainless steel rod for reliable actuation in humid or mildly corrosive industrial settings.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX190-100S the Right Cylinder?
Choose this 40 mm bore when you need a 628 N push force at 0.5 MPa, stepping down from the 63 mm bore (1559 N) for lighter tasks, or up from the 32 mm bore (402 N) when more thrust is required. The generous 100 mm adjustment range is ideal for prototyping or lines with frequent product size changes. Because the total stroke is 190 mm, an external guide is not strictly mandated, but the M12x1.25 rod thread handles moderate side loads well.
To match this ISO 15552 interchangeable cylinder, specify a 190 mm stroke with a 100 mm adjustment range, PT tapered port threads (G1/4), and the -S magnet option for CMSE reed or DMSE electronic sensors. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
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 SAIJ40BX190-100S FAQ
It provides 628 N of push force and 528 N of pull force at 0.5 MPa. The operating speed ranges from 30 to 800 mm/s.
The rear adjuster acts as a mechanical stop, allowing you to shorten the nominal 190 mm stroke anywhere down to 90 mm. It does not lock the load without live air pressure.
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