Leaf & Latch Springs
Leaf Springs
Material Characteristics
Material selection ensures tensile strengths of 2000MPa thus assuring that the leaf spring does not permanently deform when inserted in the neckring arm. The material is heat treated above 400’C to ensure that neckring temperatures of 300’C does not cause leaf spring tempering during manufacturing of containers. This heat treatment is critical to provide a longer life on the I.S. machine.
How to test correct material characteristics
Quality and Consistency
Latch Springs
The stainless steel latch springs supplied by Redfoot compliments the leaf spring with high temperature resistance and strength, ensuring that the neckring arm performs optimally for extended periods. The latch spring was designed to meet the requirements of the most demanding applications, latching and keeping the latch locked. Plants using double leaf springs in the arms are especially prone to latch spring fatigue, causing neckrings to fall out, resulting in damaged tools and container defects.