Posi-Melt™ Plasticating Screws

Proper melt preparation is critical to the injection molding process

GET BETTER MELT DELIVERY

Proper melt preparation is critical to the injection molding process. To achieve good melt takes a plasticating screw that is designed and manufactured for your specific needs. Do not settle for anything less. At Md Plastics, we have the experience, technical knowledge and software programs that can provide you with plasticating screws that are optimized for your exact situations. Give us a call today. You may be surprised at what a conversation with us can reveal about potential limitations of your current plasticating screws.

Plasticating Screw for Injection Molding Process

WHY YOU NEED THE
POSI-MELT ™ PLASTICATING SCREW

Posi-Melt™ Multipurpose Screws

The Posi-Melt™ patented feed screw is a core change to the geometry of the antiquated general purpose “GP” screw technology developed in 1950s. The Posi-Melt’s™ unique flight design alters the flight pitch and root of the screw through the melting section making them un-tangential with each other disrupting laminar flow. The geometry increases plastic exposure to the barrel wall by up to 60% delivering a uniform homogenized melt. The Posi-Melt™ is the most versatile screw technology available in the industry today for delivering a high-quality melt at a low manufacturing cost. The design has succeeded processing resins from LCP to PC and Rigid PVC with diameters from 14mm through 240mm.

Posi-Melt™ XLA Mixing Screws

In order to add a higher degree of homogenization to the melt pool, we developed an especially effective dispersive mixer that works by forcing the polymer to change direction numerous times over a short axial distance. We also add extensional strain by forcing the material to cross over a shallower land multiple times for added shear. A positive pumping angle and major flight OD wiping action assures a low pressure drop for high throughput. It also pressurizes the channels, which promotes quick and effective melt purges during changeovers.

Posi-Melt™ MB Barrier Screws

Our proprietary MB barrier design forces the polymer between the barrier flight and the inside of the barrel. This causes additional extensional strain to ensure complete melting. We can couple the XLA mixer to the MB barrier for processing a variety of polymer groups, including PP, HDPE, LDPE, PS, PET, ABS as well as many others. All Posi-Melt™ screws are precisely designed to promote the best possible solids conveying and pressurizing so the polymer is transferred properly through the transition and metering zones. Special care is taken to design-in the appropriate leading and trailing edge radii to avoid low-velocity sections in the channel and to maximize pressure. The benefits of Posi-Melt™ screw designs include: -Quicker color and material changeovers – Posi-Melt™ MB single channel design results in better and quicker purging. -Lower cost – Posi-Melt™ MB single channel design is less costly to manufacture. -Complete pressurization throughout for excellent conveying, melting, and pumping.

Posi-Melt™ Extrusion Screws

Posi-Melt™ technology is relied upon by extruders around the world. We’ve worked with some of the biggest names in the industry, providing them with solutions that have significantly improved the profitability of their operations. We understand and appreciate the uniqueness of each project. As a result, we spend a great deal of time on the front end of each job communicating with our customers. Every detail is discussed because every detail is important. You can rely on our technical knowledge and expertise to design and manufacture extrusion screws that will improve the reliability of your process and increase production. The end result is greater profitability and a better competitive position in the market you serve.

Get the Industry's BEST Plasticating Screw

IT'S EASIER THAN EVER TO
GET BETTER MELT PREPARATION

1. Request A Quote & Talk To Our Owner

Md Plastics' Owner Mike Durina will design a custom Posi-Melt™ Plasticating Screw to fit your machine's make/model and processing needs.

2. Install MDP™ Performance Non-Return Valve

Install the Posi-Melt™ Plasticating Screw preferably with one of our MDP™ Performance Non-Return Valves and High Performance Barrels.

3. Save Time, Save Money, Save Materials

Maximize Yield and Profits with Better Melt Preparation due to the technology and long wear life.

DON'T JUST TAKE OUR WORD
WATCH TO SEE HOW IT WORKS

POSI-MELT ™ PLASTICATING SCREWS
ARE USED ACROSS THE WORLD

GET BETTER MELT PREPARATION TODAY CONTACT Md PLASTICS