COMPONENTS
SCREW ELEMENTS
The industry's widest selection
Ranging in diameters from 10mm to 410mm from 30+ OEM manufacturers, CPM Extrusion Group offers the industry’s widest selection of twin-screw extruder screw elements.
We have placed high priority on the development of advanced construction materials and the continuous improvement of our manufacturing process. Due to this and our emphasis on maintaining low costs and competitive lead times, there is no better source for your critical replacement screw elements.
10V-12 Bi-Metal Advantage
Our proprietary PM (Particle Metallurgy) 10V-12 bi-metal screw element offering has been the industry leading solution in the compounding industry for over two decades. 10V-12 contains 10% vanadium for excellent wear resistance as well as 12% chromium for added corrosion resistance. It is manufactured from powdered alloys utilizing HIPping technology producing a homogenous carbide distribution superior to conventional steels ensuring consistent wear throughout the part. We manufacture the raw material “cans” in-house to maintain tight control of quality, lead time, and cost. Finally, 10V-12 utilizes a soft mild steel core to protect shaft splines as well as guarantee maximum transfer of torque.
Metallurgy Overview
Having operations in three separate continents provides global leverage to source the widest range of materials of construction in the industry. This graphic illustrates an overview of our most popular metallurgies and their respective wear and corrosion rating.
High Performance Elements (HPE)
Our patented High Performance Elements (HPE) were developed and engineered for mixing solutions and process tasks that normal screw elements cannot withstand. Decades of extrusion experience, studies and trials in our Innovation Lab have contributed to the perfection of our HP Elements with keeping our customer’s needs in mind.
ONE PIECE COMINATION-ELEMENT
Combination element (part conveying, part kneading or restriction element) || Distributes energy over a longer section of shaft resulting in improved mechanical integrity
SEGMENT SCREW CONVEYING, TYPE SG
Forward conveying screw segments offset at predertermined angles || Intensive distributive mixing while maintaining conveying efficiency || Mechanically stable geometry (versus offset individual elements) || Elimination of pressure/shear peaks associated with kneading elements || Promotes elongational flow
SEGMENT SCREW WITH REVERSE PITCH
Forward conveying screw segments offset at predertermined angles arranged in alternating order || Intensive mixing through open channels, reduction in shear stress from offsetting of reverse conveying screw segments || Restriction element creates 100% fill
T-PROFILE SCREW, TYPE T3
Alternating channel depth and tip clearance with each revolution || Only one flight tip scrapes the barrel and adjacent screw with close clearance through asymmetric profile || High degree of distributive mixing while maintaining conveying efficiency
T-PROFILE SCREW, TYPE T3
Increased screw/barrel tip clearance and channel depth compared to the T6 profile || Improved mixing capability while maintaining conveying efficiency || Potential benefits for degassing via surface renewal
BARRIER SCREW, TYPE BS
Primary feature is the frequent redirection of the product || Barrier discs between screw segments increases the degree-of-fill without use of restriction elements || Dispersive mixing as material is forced across barrier discs
BARRIER KNEADING SCREW, TYPE BKS
Kneading discs with large pitch angle offset in a forward conveying direction with barrier rings between discs to increase degree-of-fill || High degree of dispersive mixing
BARRIER KNEADING BLOCK, TYPE BKB
Standard two-flight kneading element with barrier rings between kneading discs || Increased degree-fill while maintaining forward conveying effect
T-PROFILE KNEADING ELEMENT, TYPE T6KB
Alternating channel depth and tip clearance with each revolution, same as T6 screw element || Geometrically self-cleaning, with asymmetric profile || Elimination of pressure/shear peaks associated with standard kneading elements
T-PROFILE KNEADING ELEMENT, TYPE T3KB
Larger channel depth and tip clearance variation than T6 kneading element || Provides high melting capacity and dispersive mixing while eliminating pressure/shear peaks associated with standard kneading elements – leading towards lower energy input and reduced melt temperature
