The rubber bushing secondary vulcanization production line is purpose-built for the secondary vulcanization of stabilizer bar rubber bushings in automotive suspension systems, integrating induction heating, secondary vulcanization curing, and cooling conveyance into a continuous automated line for efficient, stable mass production of bushing-stabilizer bar assemblies.
The secondary vulcanization process applies a second heat-cure cycle after the pre-vulcanized rubber bushing has been fitted onto the stabilizer bar, deepening the internal cross-link network within the rubber matrix. This markedly improves mechanical performance, compression set resistance, and interfacial bond strength, ensuring the finished assembly operates without noise or frictional failure in service.
The line features a dedicated secondary vulcanization heating unit with a dual-heater configuration — a primary heater and a secondary heater. The secondary heater pre-warms the incoming air stream, minimizing the temperature differential between inlet air and residual heat on the product surface, ensuring a stable and uniform thermal field within the curing chamber and eliminating quality defects caused by thermal shock.
The cooling and conveyance mechanism operates in precise coordination with the heating unit, smoothly transferring parts to the cooling station immediately after curing under controlled conditions to lock in dimensional accuracy, prevent deformation, and ensure consistent performance across each finished piece.
With a high degree of overall automation, minimal manual intervention, and stable cycle times, the line is well-suited to batch production across multiple stabilizer bar bushing specifications. Its compact footprint facilitates flexible factory layout and seamless integration into existing production lines.