Airtac SAIJ200 Adjustable Cylinder SAIJ200X280-30S
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X280-30S 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ200 mm
- Stroke280 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200X280-30S
The AirTAC SAIJ200X280-30-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 250-280 mm usable travel window, allowing you to dial back the 280 mm nominal stroke by up to 30 mm during machine commissioning.
This unit includes a standard magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors, which seat cleanly into the dual sensor grooves extruded along the aluminum barrel. The rod is crafted from carbon steel with an M36x2 thread, and the cylinder uses PT tapered ports. The rear adjuster functions strictly as a mechanical stop for end-position tuning, not as a lock, so live air pressure must be maintained to hold the load.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X280-30S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X280-30S |
|---|---|
| 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 | 15080 N | 15080 N |
| 0.7 MPa | 21111 N | — |
| Max (@1.0 MPa) | 3075 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ200 Adjustable Cylinder SAIJ200X280-30S
| 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 SAIJ200X280-30S Is Used
Heavy Press Tuning
Dial in the exact 250-280 mm end-position for large assembly presses, ensuring precise clamping force without altering the fixed mechanical frame.
Pallet Diverting
Adjust the retract stop distance on heavy-load conveyor lines to handle different pallet lengths during production changeovers.
Large Actuator Setup
Fine-tune the stroke window on massive automated machinery at commissioning, preventing hard mechanical crashes by trimming the travel by up to 30 mm.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X280-30S the Right Cylinder?
Choose this 200 mm bore when your application requires massive thrust, as stepping down to a 160 mm bore drops the 0.5 MPa push force to 10053 N. The adjustable stroke is selected over a fixed SAI cylinder when you need variable end-stops to accommodate product size changeovers without physically swapping the barrel or adding external stopper blocks. For load-holding without continuous air pressure, this cylinder is insufficient; consider an AirTAC SAIL air-released lock, a BSAI clamp-lock, or an external pilot-operated check valve instead.
When replacing an ISO 15552 cylinder, match the 200 mm bore, 280 mm stroke, 30 mm adjustment range, PT port thread, and the -S magnet requirement. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, deliberately omitting FB, CA, CB, and CR brackets. Because the 280 mm stroke is substantial and the piston rod is heavy, always support the extended rod with an external guide to prevent excessive side-loading and premature seal wear.
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 SAIJ200X280-30S FAQ
The rear adjuster acts as a mechanical stop that lets you shorten the 280 mm nominal stroke by up to 30 mm, providing a 250-280 mm usable travel window. It only sets the end position; it does not lock the load without live air pressure.
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