Airtac SAIJ40 Adjustable Cylinder SAIJ40BX110-30
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX110-30 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 SAIJ40BX110-30
The AirTAC SAIJ40X110-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates an 80-110 mm usable travel window. Delivering 628 N of push force at 0.5 MPa, it is built with a SUS304 stainless steel rod for corrosion resistance and uses PT tapered ports.
The rear adjustment screw allows you to trim the stroke by up to 30 mm during commissioning without adding external stops. It acts purely as a travel stop and does not hold the load without live air pressure. For load-holding requirements, consider the SAIL or BSAI series instead.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX110-30 Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX110-30 |
|---|---|
| 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 SAIJ40BX110-30
| 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 SAIJ40BX110-30 Is Used
Machine Changeover
Dial in the 80-110 mm travel window during product size transitions to set new retract positions without physically swapping cylinders.
End-Position Tuning
Fine-tune the exact end-of-stroke stop at commissioning to absorb mechanical tolerances and perfect the motion profile.
Variable Diverter Stops
Adjust the stroke length on a packaging line diverter to handle different carton depths on the fly.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX110-30 the Right Cylinder?
Choose this 40 mm bore when a 32 mm bore (402 N push at 0.5 MPa) lacks thrust, but a 50 mm bore (982 N) is excessive. The 30 mm adjustment range is ideal for product changeovers, letting you fine-tune the retract end-position dynamically rather than swapping a fixed-stroke SAI cylinder.
When ordering, confirm the 110 mm stroke, 30 mm adjustment, PT port thread, SUS304 (B) rod material, and no magnet. Since the 110 mm stroke is under 300 mm, side-load stress is moderate, but always ensure the M12x1.25 rod thread is properly aligned to prevent binding.
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 SAIJ40BX110-30 FAQ
At 0.5 MPa operating pressure, this 40 mm bore cylinder provides 628 N of push force and 528 N of pull force. At the maximum 1.0 MPa pressure, it delivers 1130 N of push force.
The rear adjuster screw lets you shorten the 110 mm nominal stroke by up to 30 mm, providing an 80-110 mm usable travel window. It functions as a mechanical stop to set the end position and is not a lock.
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