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High Speed Doors

High Speed Doors do exactly as the name suggests, they open and close at high speed giving fast access in and out of buildings. They can be fitted internally or externally where ease of access and rapid opening/closure is needed to help maintain a constant temperature and prevent contamination and pest infestation. These doors can be operated by passive motion sensors, loop detection systems, remote control units, as well as open/stop/close control panels internally fitted with the option of external key operation. They come with complete safety features such as photocells and safety bottom rails. All doors are characterised by their low maintenance technology and low repair costs. Each door is tailor-made to suit the site requirements and the environment the door is to operate in.


Specification

Doors constructed with highest quality components as follows:

Door Curtain:

4mm thick, clear PVC sheet (solid colours with or without vision panel) providing a barrier which:

  • Resists Air Currents

  • Provides a Sound Barrier

  • Has good Insulation Qualities

N.B. Slight discoloration can occur where two PVC sheets are joined.  This is unavoidable when trying to achieve a strong weld.

Curtain Barrel:

Constructed from 139 mm O/D mild steel tube with machined blocks at each end incorporating high-speed bearings.

Side Guides:

Fabricated from 3 mm thick pre folded steel sections.  The side guides support the barrel, curtain and motor assembly.  All steel is powder coated Golden Yellow as standard.  Any other BS colour is a free option.

Wind Bars:

A single internal and external wind bar system as standard is supplied on all doors.  Double and triple wind bar systems are used when the height, width or location dictates.  Wind bars are anodised aluminium tube, which run on nylon pulley wheels.

Bottom Rail/Safety Edge:

Constructed from 4mm thick box section steel to give high impact resistance.  An electric fully monitored safety edge is fitted to the bottom rail forming the door seal.

Damage Limitation Tabs:

Hard wearing and low impact resistant acrylic end cassettes are fitted to each side of the bottom rail.  If the door is impacted, one or both cassettes break off reducing the risk of severe damage to the bottom rail.  These cassettes can be replaced by on site maintenance personnel reducing ‘down’ time and callout charges.

Electrical Specification:
Motor Drive Unit:

Three Phase 400v AC worm gear and brake motor, incorporating limit encoder.  The drive unit can be used on manual in the event of power failure.  Curtain barrel is driven directly by the motor drive unit eliminating the need for a chain drive.  Opening speed and closing speed are adjustable up to – 1 m/s depending on the size of the door.

Control Panel:

The control panel is a new generation control unit designed for high-speed doors.  The unit is programmed via an LED screen, allowing operational parameters to be modified to each users need. 

The panel is housed in a metal IP55 rated enclosure and the following features can be programmed via the LED: Run timer, Automatic / Semi automatic running, Auto return timer (0-240 seconds), limit switch monitoring, Photocell monitoring, Safety edge monitoring, Optional contact for warning lights. The system has been specifically designed for high-speed doors.  It combines the door control features and variable speed inverter to provide a smooth operating door.

In addition the LED shows the number of cycles the door has completed, which actuator is operating the door and the five most recent faults.

An, open, close button, emergency stop button, isolator and LED window are sited on the control panel.

Safety Features:

Two 24v DC Photo-electric safety beam (constantly monitored) are fitted providing a closing safety device.

An electric safety edge system is fitted to the bottom rail providing an instantaneous stop/reverse feature should the bottom rail come into contact with an object before it reaches the floor. The safety edge is also constantly monitored and programmable. A crank handle can be fitted to the bottom of the motor for manual operation.

Activation:

  • Induction loop vehicle detectors

  • Remote push buttons

  • Remote pull switches

  • Key fob /Hand held /Fork truck mounted transmitter units ( Inc in the price )

  • Radar movement detectors

  • Remote photo-electric cells.

CE Conformity:

All doors conform to CE Marking Regulations.

Site Requirements:

A 16 Amp triple pole, neutral and earth supply to be made available 1m from the door opening to the drive side of the door.

Warranty/Guarantee:

12 Months or 250,000 cycles, parts and labour excluding damage not caused by normal operation.

MLC Door Services Ltd reserves the right to change specification without notice.

Installation:

Normally includes two skilled erectors and site drilling.  An adjacent power supply is required for hand tools.  We do not include any builders work, unloading and placing near opening unless requested.  We assume structure to receive the door to be firmly and suitably constructed.
We are available to undertake regular maintenance and repairs.

Maintenance:

High Speed Doors should be regularly maintained and the maintenance period should be determined according to operating frequency and local conditions to which the door is exposed.  In the absence of information to the contrary, we will assume that site locations are subject to normal climatic and environmental conditions when providing quotations.

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