Airtac SAIJ40 Adjustable Cylinder SAIJ40BX110-100
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX110-100 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 SAIJ40BX110-100
The AirTAC SAIJ40X110-100 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel down from a 110 mm nominal stroke to as little as 10 mm. This creates a massive 10-110 mm usable window, providing exceptional flexibility for product changeovers without needing to physically swap out the cylinder or bolt on external stops. It delivers 628 N of pull force at 0.5 MPa and 879 N of push force at 0.7 MPa.
This specific configuration uses a SUS304 stainless steel rod (option B) for superior corrosion resistance in harsh environments, alongside PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, though this unit is specified without a magnet for position sensing. It is important to note that the rear adjuster acts purely as a mechanical stop to set deceleration and end-position; it does not hold the load without live air pressure.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX110-100 Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX110-100 |
|---|---|
| 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 SAIJ40BX110-100
| 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 SAIJ40BX110-100 Is Used
Machine Changeover
Dial in the exact end-stop for different product lengths on a packaging line, shifting travel from 110 mm down to 20 mm in seconds without changing hardware.
End-Position Tuning
Fine-tune the retract stroke during commissioning to absorb mechanical tolerances and hit the exact datum point required for precise assembly tasks.
Variable Stops
Act as a programmable physical stop for testing fixtures, allowing operators to quickly adjust the usable stroke window between 10 and 110 mm per batch.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX110-100 the Right Cylinder?
Choose this SAIJ40X110-100 when your application requires extreme setup flexibility, as the 100 mm adjustment range allows a single cylinder to handle multiple product sizes. If you need slightly higher force, stepping up to the 50 mm bore yields 825 N of pull force at 0.5 MPa, but you would lose the massive 100 mm adjustability window. Because the nominal stroke is 110 mm, you do not need external side-load guides, but always ensure the 16 mm rod and M12x1.25 thread are properly aligned to prevent binding.
When seeking an ISO 15552 interchangeable replacement, match these exact specifications: 40 mm bore, 110 mm stroke, 100 mm adjustment, PT tapered port, and no magnet. This cylinder uses the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR mounts. Remember that neither the rear adjuster nor the air cushions function as a lock; for true load-holding without live air, 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 SAIJ40BX110-100 FAQ
It features a rear adjusting screw that acts as a mechanical stop, allowing you to shorten the effective stroke from the nominal 110 mm down to 10 mm. This provides a 10-110 mm usable travel window for fine-tuning end positions at commissioning. The adjuster only sets the travel end and does not lock or hold the load without live air.
At a 0.5 MPa operating pressure, this 40 mm bore cylinder provides 628 N of pull force and 879 N of push force. If you increase the pressure to 0.7 MPa, it delivers 879 N of pull and 1374 N of push force.
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