Positive Belt Tracking:
To keep the belt running on the correct line Gramac Quartz Belt Curves use a method of positive tracking. The belts are supplied with roller bearings fitted to the reinforced outer edge of the belt which then run on guide rails built into the outer perimeter of the steel frame.
Shaft mounted motor gearboxes from multiple suppliers can be accommodated. Gramac Quartz standard supply is from the SEW Eurodrive range (IP54, IE2 compliant). Other types of drive unit can be readily fitted including the latest high efficiency units, e.g. SEW Movigear and Siemens Simogear.
The preferred position for the drive unit is horizontally mounted on the outer radius at the discharge end of the belt curves. On some larger radius curves it is possible to vertically mount the geared motor on the inner radius.
Travel Direction & Speed:
Travel direction of the belt can be clockwise or anticlockwise at speeds of up to 150M/min as measured at the centre line. Variable
speed drives can be supplied on request.
All airport belt curves are fitted with endless belts with only the minimum number of vulcanised spliced joints. The belt fabric used is two ply non mono polyester backed, black PVC top (smooth or grip-face surface as required), low friction, low noise, flame retardant to ISO 340.
Removable sheet steel sidewalls can be fabricated to a max height of 450mm above the top of belt and a distance between of 1000mm, 1020mm or 1025mm. They can be supplied with brackets and slots for mounting photo sensors (PEC’s) etc. for controlling material flow. Sidewalls can have a powder coated finish in a selected colour or a BZP finish.
Can be ‘H’ type floor supports made from RHS, outriggers for low level positions, side mounted brackets for suspending from above using threaded rods or special supports can be designed to suit specific situations. Floor supports can be fitted with either anti-vibration footpads with +/- 50mm adjustment or with locking wheels/castors if required to be mobile.
Finish & Colour:
Belt curves can be powder coated in any standard RAL colour.
All Belt Curves are supplied with safety guards fitted to eliminate trap points and prevent inadvertent access to moving parts such as the pulley ends and roller guide bearings. These guards are designed to be lightweight for easy removal for maintenance. Removable sheet steel underside guarding is provided as standard.