BELLE Banne Flexco has released the non-metallic Alligator spiral lace conveyor belt fastener system, providing an alternative to vulcanised splicing for thin, light-duty conveyor belts.
It is suitable for applications guarded by metal detectors or X-ray monitors, does not mark or scratch products being conveyed, and provides FDA-approved materials for use in food or pharmaceutical production.
It has continuous plastic spirals similar to notebook binding, which are provided pre-assembled into a webbing material. This assembly is then fabricated into both belt ends through various vulcanising/bonding processes. When belt ends are brought together, the spirals mesh and a polyester connecting pin is inserted through the loops to lock the spirals into a hinged joint.
Presplicing allows spare belts to quickly replace broken belts without dismantling and reassembling conveyor components. This is helpful where enclosures or tight clearances would otherwise make on-site vulcanisation difficult. Easily separated and rejoined by pulling out and re-inserting the connecting pin, spiral lace also helps simplify maintenance where frequent cleaning is required.
The spiral lace is made of polyester in white for belts requiring FDA approval and black for general applications. Both have maximum operating temperatures of 1500ºC. They are also available in tan Polyether ether ketone for temperatures up to 2000ºC. Various sizes accommodate belt thicknesses from 0.8mm to 6.4mm with mechanical fastener ratings of up to 8.7kN/m. The smallest size operates smoothly around pulleys or nosebars as small as 12.7mm in diameter. Most sizes are offered in continuous rolls 3m, 10m or 25m long, in double-web constructions for thicker belts and single-web for thin belting.
Connecting pins in diameters matched to the three lace sizes are offered in coils 30m long. For faster pin insertion, pins are optionally offered in 4.5m lengths tipped with a rigid, smaller diameter 0.9m lead pin that threads more easily through the splice loops.