Endura Plunger

1. HOT WORK STEEL BODY
Made with hot work steel that is widely used in hot work tooling applications. Excellent combination of high toughness and resistance to thermal fatigue cracking (also known as heat checking).

2. STEEL RING
Opens during injection due to its own elasticity and due to aluminium penetrating.

3. STEEL SPRING BUSH
Ensures contact plunger/sleeve at the back of the plunger due to its own elasticity.

4. STAINLESS STEEL HOLDER
Fixed to its holder with a special bayonet locking design.

Easy assembly with tolerance for misalignment 

The coupling of plunger and holder is done using our special bayonet locking system, which allows slight misalignments during assembly, providing a seamless and forgiving integration process compared to traditional lock systems. This design ensures a reliable connection between the plunger and holder.

Cycle time reduction 

The optimized cooling design within the Endura B plunger ensures efficient and even cooling, significantly reducing cycle times. This leads to more efficient and homogenous cooling and faster solidification of the biscuit without compromising quality. 

Additionally, the ring's assembly and removal is quick, and can be done directly on the machine, minimizing downtime.

Longer lifetime

The Endura B plunger assembly with its holder is designed for durability: the holder itself rests against the inner surface of the plunger absorbing the total injection pressure and avoiding cracks and fatigue.
Endura B plunger achieves a longer lifetime compared to copper-made plungers because of less dilatation. Copper dilatation equals 17-6, while in the case of high-strength hot work steel, the expansion is up to 11-6.