Open Neck Sleeves commonly used in foundry riser systems to optimize feeding with compact riser designs and efficient metal flow.

Key Features:

• Open Top Design
  • Compatible with vertical mold setups, flask risers, or drag risers
• Material Options:
  • Exothermic Open Neck: Reacts with molten metal to generate heat, keeping metal liquid longer. Ideal for steel or complex ductile iron castings.
  • Insulating Open Neck: Uses insulation only, suitable for less critical iron castings.
• Highly Exothermic Material:
  • Activates upon metal contact to create an exothermic reaction.
  • Keeps metal in the riser molten longer → enables effective feeding.
  • Reduces solidification speed in the riser compared to the casting.