Airtac SAIJ200 Adjustable Cylinder SAIJ200AX500-20
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX500-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 500mm 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
- Stroke500 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX500-20
The AirTAC SAIJ200X500-20 is a double-acting ISO 15552 profile cylinder featuring a 500 mm nominal stroke and a rear-mounted stroke adjuster. This external stopper allows you to fine-tune the retract end-position, creating a usable travel window of 480 to 500 mm without swapping out the unit. It delivers massive thrust, pushing 28274 N at 0.9 MPa and pulling 15080 N at 0.5 MPa, making it ideal for heavy-duty pressing. The 40 mm SUS420J2 stainless steel rod (code A) provides excellent corrosion resistance, while the PT tapered port threads ensure a reliable, mechanically sealed pneumatic connection.
This adjustable-stroke variant uses a subset of ISO 15552 mounts (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR options. The rear adjuster acts purely as a travel stop to set the end position during commissioning or product changeover; it is not a lock and will not hold the load without live air pressure. For load-holding requirements without continuous air, consider an external rod lock or related AirTAC types like the SAIL or BSAI.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX500-20 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX500-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 500 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 SAIJ200AX500-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×500 | 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 SAIJ200AX500-20 Is Used
Heavy-Duty Press Tuning
Dial in the exact 480-500 mm pressing depth during commissioning to accommodate different material thicknesses without physically changing the cylinder.
Product Line Changeover
Quickly adjust the retract end-stop by up to 20 mm when switching the production line to a new product size, minimizing downtime.
Large Assembly Fixtures
Leverage the 28274 N push force at 0.9 MPa for large-scale component seating, using the rear stopper to fine-tune the final assembly position.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX500-20 the Right Cylinder?
Selecting this 200 mm bore cylinder is appropriate when your application requires the highest force class in the SAIJ range, offering up to 3204 kgf at 1.0 MPa. If you need slightly less force, stepping down to the 160 mm bore yields 18095 N of push at 0.9 MPa, which might better suit medium-heavy loads while saving space. The 20 mm adjustment range is specifically useful for machine setups requiring variable end-stops or minor positional trimming without adding external stops. Because the 500 mm stroke is substantial, always use an external guide to support the rod and prevent excessive side-loading, as even the robust 40 mm rod can deflect under high off-center loads over long distances.
When replacing an ISO 15552 cylinder, match the 200 mm bore, 500 mm stroke, 20 mm adjustment code, PT G3/4 port threads, and the specific mounting interface. This model does not include a magnet; if your application requires position sensing, you must specify the -S option to use AirTAC CMSE reed or DMSE electronic solid-state sensors in the dual-side sensor grooves.
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 SAIJ200AX500-20 FAQ
At an operating pressure of 0.9 MPa, this 200 mm bore cylinder generates a push force of 28274 N and a pull force of 22680 N. The maximum force at 1.0 MPa is 3204 kgf.
The rear adjuster acts as a mechanical stop that lets you shorten the effective stroke from 500 mm down to 480 mm. It is used for fine-tuning the end position at commissioning, but it is not a lock and cannot hold the load without live air pressure.
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