Sprue Cluster with Casting Sprue Assembly and Long Central Runner Bar

Multi-cavity die operations in automotive, consumer electronics, and medical device production require casting sprue assemblies with accurately dimensioned runner bars and attachment gates; gate width scatter or runner bow causes fill imbalance and part-to-part weight variation. Ningbo Yujun produces this aluminium casting sprue assembly with long central runner bar under IATF 16949 and ISO 9001 certification, controlling runner cross-section and gate dimensions to your released dimensions. In-house finishing includes sandblasting, shot blast, and anodizing applied after gate trim; the full sequence handled at the Ningbo, Zhejiang facility without sub-contracting. The site covers approximately 4,000 m² of production space. Production supports aerospace, military, and semiconductor requirements. IATF 16949 certification provides the traceability documentation required for automotive casting supply chains. Submit your casting drawing with runner cross-section, gate width, and attachment geometry. Yujun will confirm the die casting process parameters and provide a production quotation with lead time.