Airtac SAIJ200 Adjustable Cylinder SAIJ200X280-40
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X280-40 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 SAIJ200X280-40
The AirTAC SAIJ200X280-40 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering massive thrust for heavy-duty automation. The integrated -40 adjustment code allows you to dial back the 280 mm nominal stroke, providing a usable travel window between 240 and 280 mm to fine-tune end positions without external stops.
This extruded aluminum profile cylinder features a robust 40 mm carbon steel rod with an M36x2 thread, designed to handle significant side loads. It uses G3/4 PT tapered ports and includes variable air cushions at both ends to manage high kinetic energy. The rear adjuster acts purely as a mechanical stop for position tuning and does not hold the load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X280-40 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X280-40 |
|---|---|
| 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 SAIJ200X280-40
| 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 SAIJ200X280-40 Is Used
Heavy Press Tuning
Dial in the exact 240-280 mm end-of-stroke position during heavy press commissioning to accommodate different material thicknesses without adding external mechanical stops.
Product Size Changeovers
Quickly adjust the travel window on automated production lines when switching between large product sizes, minimizing downtime and avoiding cylinder replacement.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X280-40 the Right Cylinder?
The adjustable stroke is ideal for product changeovers, allowing you to shift the 240-280 mm travel window at commissioning rather than swapping the cylinder. For load-holding without live air pressure, you must integrate an external rod lock or look at the SAIL or BSAI series, as the SAIJ adjuster is strictly a travel stop.
Because the 280 mm stroke is substantial, ensure adequate external guiding to protect the 40 mm rod from bending under heavy loads. This cylinder is dimensionally interchangeable per ISO 15552 and uses a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2. It omits FB, CA, CB, and CR mounts, and operates without a magnet, meaning CMSE or DMSE sensors cannot be used unless a -S magnet variant is specified.
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 SAIJ200X280-40 FAQ
At the maximum 1.0 MPa pressure, it can deliver up to 3204 kgf.
The rear adjuster screw allows you to shorten the 280 mm nominal stroke by up to 40 mm, creating a usable travel window of 240 to 280 mm. This stopper only sets the end position and does not lock the load without continuous air pressure.
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