Airtac SAIJ100 Adjustable Cylinder SAIJ100BX180-40S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX180-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 180mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ100 mm
- Stroke180 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX180-40S
The AirTAC SAIJ100X180-40-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 5497N of push force at 0.7MPa and features a 140-180mm usable travel window, allowing you to trim up to 40mm off the nominal 180mm stroke during commissioning without swapping hardware.
This unit includes a SUS304 stainless steel rod for superior corrosion resistance and a -S magnet for position sensing. It is designed with PT tapered ports and extruded aluminum barrel sensor grooves on both sides, accepting CMSE reed or DMSE electronic solid-state switches.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX180-40S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX180-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 180 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| 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, 36 mm |
| Max stroke | Up to 1500 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100BX180-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | 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 SAIJ100 Adjustable Cylinder SAIJ100BX180-40S Is Used
Machine Changeover
Dial in the 140-180mm travel window during product size transitions to set precise retract positions without adding external stopper blocks.
End-Position Tuning
Fine-tune the final retract point at machine commissioning to absorb mechanical tolerances and achieve exact placement.
High-Force Positioning
Leverage 5497N of thrust at 0.7MPa to push heavy fixtures into place while relying on the rear screw for final placement.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX180-40S the Right Cylinder?
Choose this 100mm bore when an 80mm bore (3518N push at 0.7MPa) lacks thrust, but a 125mm bore is physically oversized. The 40mm rear stopper screw lets you fine-tune the retract end-position on the fly, which is ideal for product-size changeovers versus a fixed-stroke SAI cylinder. Remember that the adjuster is a travel stop, not a lock; it cannot hold a load without live air, so specify SAIL or BSAI if true load-holding is required.
For an exact ISO 15552 replacement, match the 100mm bore, 180mm stroke, 40mm adjustment, PT ports, SUS304 rod, and -S magnet. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2. Because the 180mm stroke is under 300mm, side-load stress is minimal, though the robust 25mm rod and M20x1.5 thread handle standard loads well.
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 SAIJ100 Adjustable Cylinder SAIJ100BX180-40S FAQ
At 0.7MPa operating pressure, this 100mm bore cylinder provides 5497N of push force and 3681N of pull force. It can reach a maximum push force of 7068N at 0.9MPa.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective stroke from 180mm down to 140mm. This provides a 140-180mm travel window for fine-tuning the end position without replacing the cylinder.
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