The ännt SA275/K4-900 is a semi-automatic, crash-rated bollard engineered for sites that need dependable vehicle-impact protection without the cost and complexity of a fully automatic system. Certified to ASTM M30/K4, the SA275/K4-900 is designed to stop a 15,000-lb vehicle traveling at 30 mph, making it a strong choice for commercial sites, municipal facilities, logistics yards, research campuses, and controlled-access roadways.
The bollard uses an internal hydraulic mechanism that is activated with a cordless screwdriver, allowing it to rise and lower smoothly with minimal manual effort. The reinforced 900 mm steel cylinder and heavy-duty foundation structure provide reliable crash performance, long-term durability, and consistent operation in tough climates.
It integrates easily into ännt perimeter-protection layouts and works well in environments where access is occasional but certified crash protection is still required. With proven rating performance, simple operation, and low maintenance needs, the SA275/K4-900 is an effective solution for secure access control without automation.




