Airtac SAIJ200 Adjustable Cylinder SAIJ200AX180-50S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX180-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 180mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ200 mm
- Stroke180 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX180-50S
The AirTAC SAIJ200X180-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 130 to 180 mm. As the largest bore in the series, it delivers massive thrust, generating 15708 N of push force and 15080 N of pull force at a 0.5 MPa operating pressure. The extruded aluminum barrel features sensor grooves on both sides, and this specific unit includes a magnet for position detection.
This variant features an SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance and utilizes PT tapered port threads with a G3/4 connection. The rear adjustment screw allows you to fine-tune the retract end position at commissioning without swapping the cylinder or adding external stops. The adjuster functions strictly as a travel stop to set the stroke end, not as a locking mechanism, so the load is not held without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX180-50S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX180-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 180 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 50 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 (Ø200mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ200 Adjustable Cylinder SAIJ200AX180-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | 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 SAIJ200 Adjustable Cylinder SAIJ200AX180-50S Is Used
Heavy Press Tuning
Dial in the exact 130-180 mm travel window during heavy press commissioning to accommodate varying material thicknesses without external stops.
Product Changeover
Quickly readjust the retract end position on automated lines when switching product sizes, leveraging the 50 mm adjustment range for fast setup.
Large Assembly Stops
Use the massive 15708 N push force to move heavy assemblies into place while fine-tuning the final resting position via the rear screw.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX180-50S the Right Cylinder?
Choose this 200 mm bore when maximum output is required; if you can step down to a 160 mm bore, you will see a reduced push force of 10053 N at 0.5 MPa. The adjustable stroke is selected over a fixed SAI cylinder when a machine setup requires a variable end-stop to accommodate product changeovers or fine-tune positioning. For load-holding without live air, consider the SAIL or BSAI series, as this cylinder's adjuster does not lock the load. This model is dimensionally interchangeable per ISO 15552 and includes a -S magnet for CMSE reed and DMSE electronic sensors. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ200 Adjustable Cylinder SAIJ200AX180-50S FAQ
At 0.5 MPa, it provides 15708 N of push force and 15080 N of pull force. At the maximum 1.0 MPa operating pressure, it delivers up to 3204 kgf.
The rear adjuster acts as a mechanical stop that lets you shorten the 180 mm nominal stroke by up to 50 mm, creating a usable travel window of 130 to 180 mm for fine-tuning end positions.
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