molders-services_barrels

Strong and Straight

The structural shell of bimetallic barrels supplied by MSI consist of a microalloy steel that maintains high strength and straightness after casting of the wear-resistant alloy lining. Unlike some barrel manufacturers, MSI can provide long barrels – up to 240 inches (6.1 meters) – without resorting to butt welding. The benefit to you is a stronger, straighter barrel with no seams to trap polymers that can degrade and contaminate you process.

Barrel relining can be a substitute for purchasing a new barrel.

Most barrels can be short sleeved with a variety of different materials.

High wear resistance for injection molding

Composition: Tungsten carbide particles uniformly dispersed in a corrosion-resistant nickel alloy matrix.
Outstanding resistance to both abrasive wear and corrosion.

Essential for molding highly filled abrasive materials such as those containing 25% or more of glass fibers or mineral fillers (calcium carbonate etc.) and hard-to-melt materials such as HMW-HDPE or LLDPE.

Resists corrosive attack by aggressive volatiles released by additives or polymers.

For general purpose use

Composition: Nickel-rich iron-boron alloy.

Cost-effective choice for either injection molding or extrusion of unfilled or lightly filled polymers having good thermal stability.

Outlasts generic competitive barrels in comparative testing.