Prestige revolving door

July 2010 Perimeter Security, Alarms & Intruder Detection

Turnstar has launched a new range of high-end prestige revolving doors to complement its existing range of physical access control products. The move represents a massive shakeup in the industry that is mainly controlled by European imports.

The main purpose of a revolving door is to provide unhindered, easy access into a building without allowing air to escape or enter, which means less money spent on air conditioning and heating costs.

The new revolving door range is available in both manual and automatic configurations and each door is fully customisable based on the customer’s aesthetic preferences and functional requirements. The revolving doors are available in diameters of 1,6 m up to 5 m and can be manufactured in either two, three or four-wing configuration.

The frame of the revolving door is manufactured from either powder coated mild steel, 304 or 316 grade brushed stainless steel. The brushed stainless steel provides a more visually appealing and lasting finish.

The glass used generally is a 6,38 mm PVB laminate or an 8 mm toughened glass. Greater aesthetics can be provided through the use of thicker multilayered and coloured laminates. For high security applications thicknesses as high as 70 mm can be used both in flat and curved glass depending on the desired ballistic performance.

In order to seal the edges of the revolving door, high strength brushes are fitted to the glass wings. The revolving door can also be manufactured for night locking by means of a mortise lock configuration or an electromechanical break configuration connected to the motor in the head assembly.

The launch of the automatic revolving door provides a cost effective and high-speed entry point to the building without inconveniencing the pedestrian. Rotation speed is adjustable, with a standard setting of six to eight rotations per minute, and a sensor that automatically detects the approach of a pedestrian from approximately 3 m before the revolving door initiates rotation. The motor allows for ultra quiet operation and when a power failure occurs, the automatic door allows for manual operation with minimal force exerted by the pedestrian.

Safety is of course a major concern for automatic revolving doors and thus Turnstar automatic revolving doors are fitted with a no-crush ultra sensitive safety edge system that instantly stops the door if the door encounters an obstacle. This prevents extremities such as fingers and hands from being caught by the door. Another built-in safety feature is the use of a very low backlash motor gearbox that enables the door to stop instantaneously with negligible play when the no-crush or emergency stop systems are activated. This is a feature that can save lives as revolving doors have a tremendous amount of inertia which can cause a great deal of damage.

For more information contact Turnstar Systems, +27 (0)11 786 1633, craig@turnstar.co.za, www.turnstar.co.za



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