Airtac SAIJ200 Adjustable Cylinder SAIJ200AX20-20S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX20-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 20mm 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
- Stroke20 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX20-20S
The AirTAC SAIJ200X20-20-S is a double-acting ISO 15552 profile cylinder engineered for heavy-duty applications, delivering a substantial 15708N push force at 0.5 MPa. It features a rear-mounted stroke adjuster that allows you to fine-tune the effective travel within a 0 to 20 mm window. This built-in adjustability eliminates the need to swap cylinders or bolt on external stops during machine commissioning or product changeovers.
Equipped with a SUS420J2 stainless steel rod and PT tapered ports, this unit is built for durability. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated magnet (-S) supports AirTAC CMSE reed and DMSE electronic solid-state switches. The rear adjuster functions strictly as a travel stop to set the end position, not as a lock, meaning it cannot hold a load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX20-20S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX20-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 20 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 SAIJ200AX20-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×20 | 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 SAIJ200AX20-20S Is Used
Heavy Press Tuning
Dial in the exact 0-20 mm travel limit on a high-force 200 mm bore press during setup, ensuring precise material deformation without swapping cylinders.
Product Size Changeover
Quickly adjust the end-stop position on a conveyor diverter when switching between different large-format product sizes on the production line.
Machine Commissioning
Fine-tune the retract end-position during initial machine build to perfectly align a 15708N thrust mechanism, avoiding the cost of custom external stops.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX20-20S the Right Cylinder?
Choose this 200 mm bore cylinder when an application demands extreme thrust—up to 15708N push at 0.5 MPa or 21991N at 0.7 MPa. If your force requirements are lower, stepping down to a 160 mm bore yields 10053N at 0.5 MPa, which may offer a more compact footprint. The SAIJ series is selected over a fixed-stroke SAI cylinder when the exact end-of-travel position needs precise mechanical tuning at commissioning or during variable product-size runs.
For load-holding without continuous air pressure, this cylinder is insufficient; the rear adjuster only decelerates and sets the travel end. You would need to specify an SAIL (air-released lock) or BSAI (clamp-lock) cylinder, or integrate an external pilot-operated check valve. This SAIJ200X20-20-S uses the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting FB, CA, CB, and CR brackets. It operates at 30-500 mm/s.
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 SAIJ200AX20-20S FAQ
At 0.5 MPa, this 200 mm bore cylinder provides 15708N of push force and 15080N of pull force. At 0.7 MPa, the push force increases to 21991N. The maximum operating pressure is 1.0 MPa.
The rear adjuster screw acts as a mechanical stop that lets you trim the effective stroke back by up to 20 mm, providing a usable travel window of 0 to 20 mm. It sets the end position but does not lock or hold the load without live air pressure.
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