38crmoala High-Quality Alloy Structural Steel Conical Twin Screw
and Barrel for PVC WPC Profile
Bloom manufacture screw elements,barrels and other extruder
machines.Screw elements are the main working parts for twin screw
extruder which determined the quality and output of plastic
products.With high quality,the screw elements assure plastic
molecular mixing,cutting,spreading as well as reacting among
themselves etc.Extremely high self cleaning performance assure the
high quality of the whole production line,for this,our company
combiend our experience for years,the merits about foreign
countries and the customer’s use,then take them into
action,designed all kinds of suitable processing screw element with
reasonable parameters,high self cleaning performance,wear
The function of screw element is mainly used to convey materials.
Feeding and degassing sections generally have the long pitch to
improve the material conveying and degassing. For material of low
bulk density, feeding sections can use deep channel components to
increase feeding capacity. The metering extruded segmented screw
elements generally adopt the small pitch which is used to
pressurize, improve the density of the material at the die head,
and make the extrusion more stable.
Bloom manufacture screw element suitable for the following extruder
We can satisfy your different material needs:
A . according to appearance design
Convey screw segment
Mixing screw segment
Transition screw element
Deep groave transfer element
Screw element for side feeder
1/2/3 flighted screw element
OEM special screw element
B . according to materials
For wear application:
For corrosion application:
For wear and corrosion application:
Stainless Steel:316L,440C etc.
1.Made of high speed steel (W6Mo5Cr4V2 and M2),Vacuum heating
treatment and overall hardening, high wear-resistance and
2.Made nitrider steel (38CrMoAIA). high hardness, super toughness,
anti-corrosion and anti-burst.
3.Made of HIP material imported from Europe (super wear-resistance
powder metallurgical steel X245 and WR5).With features of high
wear-resistance. high torque, anti-corrosion and anti-burst, this type of screw elements is
used to produce such engineering plastics as that of more than 50%
4.Made of Hastelloy C-276 (00Cr16Mo16W4),super anti-corrosive
nickel alloy. this type of screw elements is used to produce
Screw and barrel accessories are important components for conical
twin screw extrusion systems used in PVC and WPC profile
applications. These accessories help to enhance the performance and
efficiency of the extrusion process and ensure the quality of the
Here are some examples of screw and barrel accessories for conical
twin screws used in PVC and WPC profile extrusion:
1. Mixing elements: These are special screw elements that are used
to enhance the mixing and homogenization of the PVC or WPC
materials. They can improve the consistency of the material and
reduce the risk of defects in the finished products.
2. Side feeders: These are auxiliary devices that are attached to
the extruder barrel to introduce additional materials, such as
fillers or colorants, into the extrusion process. They can improve
the properties and appearance of the finished products.
3. Temperature sensors: These are sensors that are installed in the
barrel to monitor the temperature of the PVC or WPC materials
during the extrusion process. They ensure that the temperature is
consistent and within the optimal range for the materials, which
can improve the quality of the finished products.
4. Pressure sensors: These are sensors that are installed in the
barrel to monitor the pressure of the PVC or WPC materials during
the extrusion process. They ensure that the pressure is consistent
and within the optimal range for the materials, which can improve
the quality of the finished products.
Overall, screw and barrel accessories play a crucial role in
ensuring the performance, efficiency, and quality of the extrusion
process for PVC and WPC profile applications.
Production Process Show