Copromec plunger tips are made of tempered and nitrided steel in order to guarantee a greater resistance to the impact of the alloy and the thermal shocks to which they are subjected.
On the front part of the plunger tip there are channels or holes in order to let the alloy flow and solidify under the copper ring, ensuring a costant seal between shot sleeve and ring. The front face of the plunger tip is supported by the support pin in order to provide better injection shocks.
Copromec plunger tips can have: