Melco Conveyor Equipment and Africa Roller, global players in the design and manufacture of conveyor idlers, have recently enhanced their product range to maintain their international lead in the field of Polyroll technology. The company’s development team has produced an entirely upgraded Polyroll range, known as the SUPREME.

Africa Roller invented and patented the first Polyroll in the early 80s, and has since then supplied many hundreds of thousands of these rollers into various applications throughout the world.

The improvements to the original roll include an increase in the wall thickness of the HDPE sleeve from 6mm to 12mm to extend the life of the roll. The HDPE sleeve is fitted to the steel tube, in a way that effectively locks it in position, adding to the structural strength of the roller. The distance between the bearings and the roll support brackets is shorter, decreasing the shaft deflection induced by equivalent load. A glass fibre reinforced polymer material has increased the strength and stability of the bearing housing and the machined surface finish of the roll provide a low total indicated run-out, minimising vibration and noise levels.

An innovative ‘stone guard’ with integral labyrinth seal prevents the roll from being jammed by spillage of small material. The larger diameter of the outer blade of this stone guard labyrinth is effective because of the higher velocity at this point. The smaller internal diameter minimises ingress of contaminants.

The well proven Melco multi-part labyrinth seal as fitted to many millions of rollers operating in over 55 countries, has been utilised to ensure effective sealing while still maintaining a remarkably low running resistance.

In addition to all its benefits, the SUPREME Polyroll is available at no additional cost. Clients are receiving a product that has increased in value significantly, at a very competitive price. The product is SANS certified and complies with all requirements including breakaway mass, running resistance and water ingress.

For further information contact:
Derek Cohen
Tel: 011 873-1301
Fax: 011 825-3592
E-mail: derekc@melco.co.za
Website: www.melcoconveyors.com