Why Do Tires Contain Steel Wire?
In OTR (Off-The-Road) tires, the steel wire is located in the bead area-where the inner tire meets the wheel rim. It consists of high-strength, copper-coated steel wire wound into a ring (the bead core). This component secures the tire to the rim, ensures an airtight seal, and withstands the tensile stresses encountered during operation.
OTR tires are massive-often classified as "giant tires"-and are characterized by high load-bearing capacity, low rolling resistance, and excellent wear resistance. Recycling and processing these tires is a complex task; manual labor is insufficient for handling tires of this size, necessitating specialized machinery for wire extraction and recycling.
While traditional wire-pulling machines are limited to tires with diameters under 1,800 mm, OTR wire-pulling machine can directly extract bead wires from engineering tires with diameters ranging from 1,800 mm to 4,000 mm. Operating on a two-minute cycle and powered by a 25 kW motor, the machine effectively and powerfully removes the steel wire, completing the extraction process in a single step without the need for rework.
Why Is a Wire-Pulling Machine Needed?
Used tires are typically recycled by shredding and grinding them into rubber powder, which is widely used for road paving, running tracks, and the manufacture of rubber products. Extracting the steel wire from the tires beforehand offers several benefits: it reduces wear and tear on the shredder (thereby extending the machine's service life), improves the quality of the resulting rubber powder, and ultimately leads to higher economic returns.
