The critical component of any extruder is the feedscrew. If perfectly matched to your process, the result is optimum output and a quality product. Davis-Standard stays on the leading edge of screw technology with one of the most advanced design and manufacturing facilities in the world.
All Davis-Standard feedscrews are designed and manufactured right on the premises. Designs are based on individual customer extrusion parameters encompassing output rate, melt temperature, output consistency of extruder stability, melt homogeneity, melt quality, and power requirements.
Single Screws
Sizes range from 3/4-inch (20mm) to 12-inches (305mm) in diameter with virtually any L/D and can be designed to fit any manufacturer`s extruders. The company has feedscrew designs to match the most unique process and compounds including their patented DSBM-T TM barrier feedscrew.
Conical and Parallel Twin Screws
Utilized in the processing of RPVC, Davis-Standard`s conical twin screws and parallel twin screws are manufactured for use in the company`s ``GC`` conical twin screw extruders and ``GP`` parallel series accordingly. Each set of screws are designed to provide stable melt temperature at the highest possible rates.
Segmented Screws and Barrels
Davis-Standard manufactures and designs D-TEX twin screw compounding segmented screws and barrels. These D-TEX screws are composed of individual elements which slide onto a driving shaft. Screw elements are designed with either 2 or 3 flights. Barrel sections are customized for top feeding, venting, downstream side feeding, or straight section without openings.
Davis-Standard Control Systems
All Davis-Standard control systems are custom engineered in-house to insure system applicability and reliability. We design and manufacture custom drives and controls, production line motor drives, extrusion and process temperature, pressure and gauging controls. The company also manufactures patented dual thermocouple and advanced touchscreen control systems capable of a variety of functions.
EPIC
A Windows TM based multi-tasking touchscreen extrusion process control system, offers processors graphical interface with custom designed display screens, custom reports, unlimited recipe storage and complete management capabilities. EPIC provides process documentation for quality records and data analysis and the system`s PLC based control technology provides fast response, complete line documentation and data acquisition.
CMR I
Ideal for extrusion coating and cast film applications. This system offers control advances in die control and layer ratio, temperature, gravimetric feeding, internal bubble cooling and winding. An integrated package, the CMR provides split-second real time reporting.
MESA
A single, totally integrated touch screen control package. MESA can be run independently or coordinated with a downstream device. The system is equipped with over 20 different screens providing processors everything from recipe storage to real time trending.
Data-Pac
Primarily a data collection system, the Data-Pac NT is a supervisory control package that communicates with temperature controllers, motion controls and various gauges and instruments.
Discrete Controls for lines requiring only basic relay logic and limited drive coordination.
