Airtac SAIJ200 Adjustable Cylinder SAIJ200AX475-40
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX475-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 475mm 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
- Stroke475 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX475-40
The AirTAC SAIJ200X475-40 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty applications, delivering a substantial push force of 15708 N at 0.5 MPa. It features a SUS420J2 stainless steel rod for enhanced corrosion resistance and utilizes a PT tapered G3/4 port. With a nominal stroke of 475 mm, the integrated rear adjuster allows you to fine-tune the effective travel within a precise 435-475 mm window without changing the cylinder.
This adjustable-stroke design eliminates the need for external stops during machine setup or product changeover. The extruded aluminum barrel includes sensor grooves on both sides, and while this specific unit lacks a magnet, the broader series supports CMSE reed and DMSE electronic sensors when specified. The rear screw functions purely as a travel stop to set the retract end position, meaning it cannot hold a load without continuous live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX475-40 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX475-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 475 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 SAIJ200AX475-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×475 | 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 SAIJ200AX475-40 Is Used
Heavy Press Tuning
Dial in the exact 435-475 mm retract position on heavy presses during tooling changes, ensuring perfect contact without adding bulky external stopper blocks.
Large Assembly Jigs
Leverage the 15708 N push force to seat large components in assembly jigs, using the rear adjuster to compensate for varying product heights on the fly.
Variable End-Stop Setup
Adjust the end-of-stroke position by up to 40 mm during machine commissioning to perfectly synchronize heavy moving platens across a 475 mm travel path.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX475-40 the Right Cylinder?
Choose this 200 mm bore cylinder when your application requires extreme thrust—up to 15708 N push at 0.5 MPa—along with a 435-475 mm stroke window for precise end-position tuning. If your force requirements are lower, stepping down to a 160 mm bore yields 10053 N of push force, significantly reducing the physical footprint and air consumption. Conversely, if you need fixed travel without adjustability, a standard SAI cylinder is sufficient. Because the nominal stroke is 475 mm, an external guide is highly recommended to prevent excessive side-loading on the rod.
For a true ISO 15552 replacement, match the 200 mm bore, 475 mm stroke, 40 mm adjustment range, PT G3/4 port, and SUS420J2 rod material. Note that the SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, deliberately omitting FB, CA, CB, and CR brackets. If your setup demands load-holding without live air pressure, consider an AirTAC SAIL pneumatic lock or BSAI clamp-lock cylinder instead of relying on the rear stopper.
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 SAIJ200AX475-40 FAQ
At 0.5 MPa operating pressure, this 200 mm bore cylinder provides a push force of 15708 N and a pull force of 15080 N. At the maximum rated pressure of 0.9 MPa, the push force increases to 28274 N.
The rear adjuster acts as a mechanical stop, allowing you to shorten the effective stroke from the nominal 475 mm down to 435 mm. This creates a 435-475 mm usable travel window for fine-tuning the end position at commissioning, but it does not lock the load without live air pressure.
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