Endura Steel Plunger

Versatile and robust plunger solution with patented cooling system

Endura

ENDURA B-RS

ENDURA T-R

ENDURA T

ENDURA T-RS

range ø50 to ø260 mm

Endura

Versatile and robust plunger solution with patented cooling system

1. HOT WORK TOOL 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.

Key features and benefits

Premium EU made tool steel grade – developed for optimal combination of toughness and resistance to heat checking

Engineered Ring – made with softer steel prevents sleeve damage and allows smooth sliding of the spring bush.

Corrosion-Resistant Holder – stainless steel holder compatible with other HTS plunger models.

Flexible Locking System – bayonet or thread systems for application-specific fit.

Shorter Downtime – quick ring assembly and removal directly on the machine reduces maintenance time.

Extended Service Life – robust holder design absorbs injection pressure, reducing fatigue and cracking. Superior wear resistance of hot work tool steel compared to copper extends the lifetime.

Misalignment Compensation – bayonet locking system allows for slight misalignment, ensuring reliable coupling and faster integration.

Cycle Time Reduction

Homogenous cooling and faster solidification of the biscuit

Shorter Downtimes

Plunger Ring and Spring Bush

Enhanced Durability: Fewer Replacements, Less Downtime
Plunger rings help to streamline operations and reduce costs by decreasing the need for frequent changes and repairs.
Compatible hardness:
Using the same materials for the sleeve and ring minimizes friction and wear on both components, extending their lifespan, leading to less downtime. Opens during injection due to its own elasticity and due to aluminum penetrating between ring and plunger. The ring's assembly and removal is quick, and can be done directly on the machine, minimizing downtime.

Available models

Highly customizable for different machine sizes and applications


	Endura T-F	Endura T-R: with ring	Endura T-RS: with ring and spring bush	Endura B-RS: with ring and spring bush
	Multipart	Multipart	Multipart	Multipart
Main material	STEEL	STEEL	STEEL	STEEL
Cooling performance	● ● ● ○	● ● ● ○	● ● ● ○	● ● ○ ○
Machine misalignment tolerance	● ○ ○	● ○ ○	● ● ●	● ● ●
Vacuum application	● ○ ○	● ● ○	● ● ●	● ● ●
Structural parts	● ○ ○	● ● ○	● ● ●	● ● ●
Range of Ø	40-100mm	40-100mm	40-100mm	50-260mm
Machine size range	Small – Medium	Small – Medium	Small – Medium	Small – Large