Airtac SAIJ200 Adjustable Cylinder SAIJ200AX280-50S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX280-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 280mm 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
- Stroke280 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX280-50S
The AirTAC SAIJ200X280-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 280 mm travel by up to 50 mm for a precise 230-280 mm usable window. Built with an extruded aluminum barrel, it delivers massive thrust, pushing 15708 N and pulling 15080 N at 0.5 MPa. This makes it highly effective for moving heavy payloads in demanding pneumatic setups.
This SKU features a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance and includes a magnet (-S) for direct compatibility with AirTAC CMSE reed and DMSE electronic sensors. The rear stopper acts purely as a travel limit to fine-tune the retract position during commissioning; it is not a locking device and cannot hold the load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX280-50S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX280-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 280 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 SAIJ200AX280-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×280 | 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 SAIJ200AX280-50S Is Used
Heavy Machinery Positioning
Provides immense push force for shifting heavy industrial loads, with a 50 mm adjustment window to perfectly dial in the retract distance during machine assembly.
Product Line Changeover
Enables rapid adaptation of end-stops on a production line handling varying product sizes, trimming the 280 mm stroke back to 230 mm without changing hardware.
Press End-Stop Tuning
Allows operators to fine-tune the bottoming position of heavy pressing operations at commissioning, relying on the rear stopper for exact positional limits.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX280-50S the Right Cylinder?
Selecting this 200 mm bore cylinder is appropriate when your application requires up to 15708 N of push force at 0.5 MPa, stepping up significantly from a 160 mm bore that provides 10053 N. The adjustable 230-280 mm travel window is ideal for product changeovers, allowing you to shift the end-stop without physically swapping the cylinder or adding external stops. If your machine requires true load-holding without continuous air pressure, this standard adjuster will not suffice, and you should instead explore the SAIL or BSAI locking cylinder series.
To match this exact configuration for an ISO 15552 replacement, specify the 200 mm bore, 280 mm stroke, 50 mm adjustment range, PT tapered ports, and the -S magnet option. Because the stroke is 280 mm, ensure the M36x2 rod is adequately supported by an external guide to prevent excessive side-loading, even with the robust 40 mm rod diameter. The available mounting set includes 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 SAIJ200AX280-50S FAQ
At 0.5 MPa operating pressure, this 200 mm bore cylinder generates a push force of 15708 N and a pull force of 15080 N. At 0.7 MPa, the push force increases to 21991 N.
The rear adjuster screw lets you shorten the effective travel from the nominal 280 mm down to as little as 230 mm. This creates a 230-280 mm usable window for fine-tuning the end position at commissioning, but it acts only as a stop and does not lock the load.
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