Airtac SAIJ40 Adjustable Cylinder SAIJ40BX110-40S
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX110-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 110mm 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
- Stroke110 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX110-40S
The AirTAC SAIJ40X110-40-S is a double-acting, ISO 15552 profile cylinder featuring a rear stroke adjuster that trims the effective travel by up to 40 mm. This creates a highly flexible 70-110 mm usable stroke window, allowing you to dial in the exact end position during commissioning without adding external stops. It delivers 628 N of push force and 528 N of pull force at 0.5 MPa.
Built with a SUS304 stainless steel rod (option B), this unit is tailored for environments where corrosion resistance is paramount. The integrated magnet (-S) supports non-contact position sensing using AirTAC CMSE reed switches or DMSE solid-state electronic sensors fitted into the dual-side sensor grooves. The PT tapered port thread ensures a tight, reliable pneumatic connection.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX110-40S Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX110-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 110 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 SAIJ40BX110-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×110 | 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 SAIJ40BX110-40S Is Used
Machine Changeover
Adjusts the retract end-position on the fly to handle different product sizes without swapping the entire cylinder assembly.
Commissioning Calibration
Fine-tunes the 70-110 mm travel window during initial setup to perfectly time machine cycles and prevent mechanical interference.
Corrosive Environments
Leverages the SUS304 stainless steel rod for reliable actuation in wash-down or chemical-exposure manufacturing zones.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX110-40S the Right Cylinder?
Choose this adjustable-stroke SAIJ model over a fixed SAI cylinder when a machine requires variable end-stops to accommodate product changeovers or fine-tuning at setup. If your application needs less force, stepping down to a 32 mm bore yields 402 N of push force at 0.5 MPa. For higher loads, a 50 mm bore provides 982 N.
Remember that the rear adjuster acts purely as a mechanical travel stop, not a lock; the cylinder cannot hold a load without live air pressure. For fail-safe load holding, consider an AirTAC SAIL or BSAI cylinder. This SAIJ40X110-40-S variant uses a PT port thread, omits the FB, CA, CB, and CR mounting styles, and operates efficiently within the 30-800 mm/s speed range.
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 SAIJ40BX110-40S FAQ
A rear adjusting screw acts as an external stopper, allowing you to shorten the nominal 110 mm stroke by up to 40 mm. This provides a usable travel window of 70-110 mm, which can be modified at any time without replacing the cylinder.
At a standard 0.5 MPa operating pressure, the SAIJ40X110-40-S generates 628 N of push force and 528 N of pull force. It can reach up to 1130 N of push force at 0.9 MPa.
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Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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