Airtac SAIJ40 Adjustable Cylinder SAIJ40BX180-10S
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX180-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 180mm 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
- Stroke180 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX180-10S
The AirTAC SAIJ40X180-10-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 170-180 mm usable travel window. It delivers 628 N of push force and 528 N of pull force at 0.5 MPa, utilizing a 16 mm carbon steel piston rod with an M12x1.25 thread. Equipped with a -S magnet, it integrates seamlessly with AirTAC CMSE reed and DMSE electronic solid-state sensors mounted into the dual-side extruded aluminum barrel grooves.
This variant features a SUS304 stainless steel rod (code B) for superior corrosion resistance in harsh environments. The rear adjuster acts purely as a mechanical stop to fine-tune end positions during commissioning; it does not hold the load without live air pressure. For load-holding requirements without continuous air, consider the SAIL or BSAI series instead.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX180-10S Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX180-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 180 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 SAIJ40BX180-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×180 | 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 SAIJ40BX180-10S Is Used
Machine Changeover
Dial in the 170-180 mm travel window during product size transitions without replacing the actuator or adding external stops.
End-Position Tuning
Fine-tune the retract end-stop during initial commissioning to compensate for mechanical tolerances in the fixture.
Corrosive Environments
Leverage the SUS304 stainless steel rod for reliable actuation in washdown or mildly corrosive industrial settings.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX180-10S the Right Cylinder?
Choose this 40 mm bore when 32 mm (402 N push at 0.5 MPa) is too weak, but 50 mm (982 N push) is oversized. The 10 mm adjustment range is ideal for dialing in exact end-stops during machine setup or product changeover without swapping cylinders. Because it is dimensionally interchangeable per ISO 15552, you can specify the exact 180 mm stroke, 10 mm adjustment, PT tapered port thread, SUS304 rod, and -S magnet to match existing mounting footprints.
At 180 mm stroke, side loads are moderate, but the 16 mm rod thread handles more bending stress than smaller bores. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options. If fixed travel is sufficient, the standard SAI series avoids the adjuster entirely.
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 SAIJ40BX180-10S FAQ
At 0.5 MPa it provides 628 N push and 528 N pull force. At 0.7 MPa it provides 879 N push. The operating speed ranges from 30 to 800 mm/s.
The nominal 180 mm stroke can be mechanically shortened by up to 10 mm via a rear adjusting screw, giving a usable travel window of 170-180 mm. This stopper only sets the end position; it does not lock the load without live air pressure.
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