The ännt AE275/M50 is a high-performance automatic bollard engineered for critical-infrastructure protection, secure facilities, logistics centers, and government sites. Certified to ASTM M50/K12, the AE275/M50 is designed to stop a 15,000-lb vehicle traveling at 50 mph, delivering top-tier security against high-speed intrusion attempts.
This model uses a reinforced steel cylinder, a heavy-duty operating frame, and an integrated electromechanical operator capable of 2,000 cycles per day. With a service life of approximately three million cycles, the AE275/M50 is built for demanding environments where reliability is non-negotiable.
The bollard integrates with standard ännt access-control systems and supports safety devices such as induction loops, traffic lights, alarms, and remote triggers. An optional EFO (Emergency Fast Operation) upgrade can raise the bollard in a rapid-response mode for heightened security conditions. It is engineered for consistent performance in extreme temperatures and includes drainage requirements to protect the internal mechanism.
The AE275/M50 delivers deep-foundation stopping power, long-term durability, and smooth daily operation, making it a dependable solution for any site requiring maximum vehicle-threat mitigation with automated access control.
AE275/M50-1200 full specifications
Everything from the spec sheet, in one place. The PDF is still under Product Downloads if you need the drawings.
| Crash rating | |
|---|---|
| Rated to | ASTM M50 (K12), PAS 68, IWA 14-1 |
| Impact resistance (no damage) | 700,000 J |
| Breakout resistance (with damage) | 2,000,000 J |
| Load rating (EN 124) | D400, drive-over rated when lowered |
| Cylinder | |
| Height above grade | 1200 mm (47.2 in) |
| Diameter | 271 mm (10.7 in) |
| Wall thickness | 23 mm (0.9 in) |
| Material | S355JR steel, or stainless steel AISI 304 or AISI 316 |
| Finish | Steel: anti-corrosion treatment plus paint. Stainless: painted or brushed. Standard colour is anthracite grey, any RAL colour on request. |
| Reflective strip | 55 mm (2.2 in), included |
| Operation | |
| Drive | Integrated electromechanical operator |
| Raise and lower speed | 22 cm/s (8.7 in/s) |
| Emergency fast raise (EFO option) | About 1.5 seconds |
| Manual emergency lowering | Yes |
| Duty rating | Up to 2,000 cycles per day |
| Service life | About 3,000,000 cycles |
| Power and controls | |
| Control voltage | 230 / 400 V AC (+/- 10%), 50/60 Hz |
| Protection class | IP67 |
| Cable to control unit | 10 m (32.8 ft) standard, up to 50 m (164.0 ft) |
| Control panels | Run 1 to 10 bollards from one panel, with or without EFO. Larger groups on request. |
| Backup power option | 3 kVA UPS keeps one bollard running for up to 1 hour (about 10 cycles) |
| Power failure lowering option | Emergency lowering in case of power failure, one per control panel |
| Foundation | |
| Foundation box depth | 1850 mm (72.8 in) |
| Footprint with reinforcement cage | 1133 x 1265 mm (44.6 x 49.8 in) |
| Foundation box options | Aluminium-zinc coated steel box with counterframe and rebar, or stainless steel water-tight box with immersion pump |
| Climate | |
| Operating temperature | -40°C to +70°C (-40°F to +158°F) |
| Cold weather | 150 W heating element with transformer and thermostat available |
| Options | |
| Lighting and signals | LED light strip (25 LEDs), acoustic warning signal |
| Corrosion | Marine treatment for salt and coastal sites |
| Cylinder | Knurled finish, brushed AISI 316 stainless, stainless head cover, custom logo or crest on the cover |
| Site | Kit for sloped roadways, stainless base plate, upper stainless counterframe |
Need help choosing between the AE275/M50-1200 and the shorter AE275/K12-900, or a drawing for your foundation design? Request information above and our team will send what your project needs.
