Airtac SAIJ200 Adjustable Cylinder SAIJ200AX280-30
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX280-30 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 SAIJ200AX280-30
The AirTAC SAIJ200X280-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a substantial 15708N push force at 0.5 MPa, making it ideal for moving heavy loads. The integrated rear stopper allows you to dial back the 280mm nominal stroke by up to 30mm, creating a precise 250-280mm usable travel window without adding external stops.
This unit is built with a SUS420J2 stainless steel rod for enhanced durability against harsh environments. It features PT tapered port threads (G3/4) and variable air cushions at both ends to manage kinetic energy. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting, while the 40mm rod and M36x2 thread provide high structural rigidity for demanding applications.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX280-30 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX280-30 |
|---|---|
| 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 SAIJ200AX280-30
| 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 SAIJ200AX280-30 Is Used
Heavy Machinery Setup
Fine-tune the 250-280mm travel window during heavy machinery commissioning to achieve exact end-positioning without machining custom spacers.
Product Size Changeovers
Quickly adapt automated line stops for varying product dimensions by dialing in the rear adjustment screw, reducing downtime between runs.
High-Force Positioning
Leverage the 15708N push force to move heavy pallets or tooling fixtures, relying on the stopper to set precise mechanical limits.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX280-30 the Right Cylinder?
Select this 200mm bore cylinder when your application requires massive thrust up to 15708N at 0.5 MPa (or 21991N at 0.7 MPa). If you need less force, stepping down to a 160mm bore yields 10053N of push force at the same pressure, which might better suit lighter assemblies. The SAIJ200X280-30 is chosen over a fixed-stroke SAI when you need fine end-position tuning at commissioning or during product changeovers. Because the rear adjuster acts only as a travel stop and the air cushion decelerates the load, neither will hold the payload without live air pressure. For true load-holding without continuous air, consider the SAIL locking cylinder or an external rod lock.
When matching an ISO 15552 replacement, verify the 200mm bore, 280mm nominal stroke, 30mm adjustment range, PT port threads, and the specific mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Although 280mm is below the 1500mm maximum standard stroke for this bore, the 40mm rod diameter provides excellent side-load resistance. For long unsupported strokes at or beyond 300mm, always utilize an external guide to prevent 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 SAIJ200AX280-30 FAQ
At 0.5 MPa operating pressure, this 200mm bore cylinder provides 15708N of push force and 15080N of pull force. At 0.7 MPa, the push force increases to 21991N.
The rear adjuster acts as a mechanical stop that lets you shorten the 280mm nominal stroke by up to 30mm, providing a usable travel window of 250-280mm. It allows precise end-position tuning without swapping the cylinder, but it is a stop, not a lock, and does not hold the load without live air.
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