Articles

hopper feed chute for material

Hopper Feeder Chute

Keep it moving – hopper feed chute design improves material flow Finally there is a way to make sure that even the most challenging feed material reaches the extruder screw without clogging or caking. Even light, fluffy or moist compounds must feed continuously into the extrusion equipment to ensure a high-quality end product. Inconsistency also …

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table top tilt

Table Top Tilt

Simple design modification eliminates the frustration of cold feed extrusion distortion Leading extrusion machinery designers, Diamond America, have developed a solution to ensure extrudate remains perfectly in shape immediately after formation. A common concern with cold feed extrusion equipment is the maintenance of cross-sectional shape once the material is released from the die. Critical parameters …

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Extrusion Die Troubleshooting

Die Troubleshooting For Productivity and Throughput

As a custom extrusion equipment manufacturer, we know the importance of good die design in ensuring throughput and productivity. Expert design balances the melt flow across the die, maintaining continuous uniformity and exit velocity with minimal pressure drop. Die selection also impacts on product quality, since incorrect die choice can cause extrusion issues and problems …

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Extruder Deal Design

Seal Design Innovations Help Reduce Machine Maintenance and Downtime

Seals are an essential component of our oil-filled gear boxes that we design and manufacture in-house for all of our cold feed extruders. In our continuing quest to improve the efficiency of Diamond America extruders, we have stepped up our game in the use of seals. Working in conjunction with a major supplier of seals …

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benefits of a great finish on a barrel liner

The Benefits of a Great Finish on Barrel Liners

Machining special shapes such as complex extrusion dies, or the grooves in barrel liners, is accomplished by Electrical Discharge Machining or EDM. A small wire laces through the steel, cutting it with very precise accuracy to tolerances of .0004. Parts formed using the EDM process have a very distinct color and surface finish. Smooth to …

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Cold Feed Extruder Venting

Cold Feed Extruder Venting for Continuous Production

Diamond America is pleased to introduce our first cold feed extruder with a vented barrel. Formerly, venting in a cold feed extruder was achieved by removing a batch of extrudate into a hopper or chute and pulling a vacuum on the material for a calculated period of time. Borrowing from the thermal plastics process, internal …

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barrel heat exchange

[VIDEO] – See How To Get Better Extrusion Thermal Control with Serpentine Flow

Extrusion process temperature control is crucial for many materials, especially those dealing with sensitive ingredients in the food and pharmaceutical industries. That’s why Diamond America engineers developed Serpentine Flow to provide better temperature uniformity, more quickly and continuously, without any dead spots along the barrel. We’ve received a lot of questions about how our Serpentine …

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Diamond America new hires

Building Momentum

Diamond America Corporation, a leader in engineering and manufacturing of extrusion equipment, announced that Mark Hensley (pictured on the left) has assumed the position of Senior Design Engineer. Mark will be responsible for directing the company’s engineering staff in its continuing efforts to design singular solutions for its customers while maintaining Diamond America’s commitment to …

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