Advantages of Parallel twin screws:
1.Good at feeding,especially for powder.And also have the superiority in bad heat-stability plastic materials and mixture palstic materials.
2.Compare to single screw barrel,It is better than single screw barrel in the followings: mixture materials,exhausting,self-cleaning.
3.Compare to conical twin screw, Parallel twin screw and barrel is widely used in PVC products processing, especially for the production of PVC products with the output over 350Kg / h, because the parallel twin-screw and barrel costs less than conical twin-screw and barrel while it has more mature technology.
4.Application:Parallel twin screw and barrel is successfully applied in PVC plate, pipe, profile, pellet and mould, at the same time, it solved the technical problem of low foaming, high foaming, high filling, wear and corrosion.
5.Other advantages:Good plasticization, high productivity, small shear force, stable pressure,less wear and tear and low cost.
Detailed Technical Information:4.Application:Parallel twin screw and barrel is successfully applied in PVC plate, pipe, profile, pellet and mould, at the same time, it solved the technical problem of low foaming, high foaming, high filling, wear and corrosion.
5.Other advantages:Good plasticization, high productivity, small shear force, stable pressure,less wear and tear and low cost.
sheet 1
| Base Materials | 1)38CrMoAlA(JIS SACM645) 2)Cr12MOV(JIS SKD-11) 3)4Cr5MoSiV1(JIS SKD-61) 4)42CrMo(AISI 4140) |
| Bimetallic | 1)Fe-based alloy 2)Ni-based alloy 3)Co-based alloy 4)NiCo-based alloy 5)Tungsten carbide/Wolfram carbide |
| Tungsten Carbide | Level A - containing Tungsten of 40% Level B - containing tungsten of 25% Level C - containing tungsten of 9.5% |
Sheet 2
| Plstic material application | 1)General Plastics 2)ABS,PA,PC,PE,PET,PP,PS,EVA,PU,PVC,U-PVC,etc 3)PA + GF(Glass Fiber) 4)Flame-resistant Reinforced Plastics 5)Modified Engineering Plastics 6)All kinds of Mixed Recycled Material(in Scrap or Granule),etc |
Sheet 3
Heat Treatment | High Frequency Treatment |
Nitriding treatment(120 Hours) | Depth of Nitrided Layer: 0.5-0.8 mm Hardness of Nitrided Layer: 900-1020Hv (HRC56°-65°) |
Hard Chrome Plating treatment | Thickness of Hard Chrome Plating Layer: 0.05-0.10mm Hardness of Hard Chrome Plating Layer: ≥950HV |
| Bimetallic treatment | Bimetallic Barrel/Cylinder: Centrifugal Casting (Inlay Alloy) Bimetallic Screw: Plasma Alloy Coating Spraying Depth of Bimetallic Layer: >2mm Hardness of Bimetallic Layer: HRC55°-72° |
sheet 4
| Roughness of the surface | Ra0.4um |
| Linearity of the screw | ≤0.015mm |
| Linear axis limit | ≤0.02mm |
| Hardness after Hardening & Tempering | HB240-280 |
| Fragility of Nitration | ≤Two class |
Sample Screw size:106*2965mm
Apply to: PVC pipe,(add some Caco3 powder)
We nitrided the screws first,then spary bimetallic on the screw flight.
Bimetallic screw,we dig a 2915mm hole in the screw to cool when the screws are working.
And like conical twin screws,we always will dig hole in the screw according to your customers requsests,then plug a cooper pipe into the hole. that could cool the screw when screws are on working.
Parallel twin screws (the middle section)
Handle of the Parallel twin screws
Machine processing parallel twin screws:
Our certificate of ISO 9001:2008 :
Quality Assurance
We strictly control our quality according to ISO 9001:2008
We strictly control our quality according to ISO 9001:2008
Quality is our main forte and we follow varied industry policies for achieving it. Furthermore, our quality consciousness has ensured that we manufacture premium quality Screw & Barrel for the clients. We conduct various quality tests on our range that start from the time of procuring raw material till the final supply of products. Apart from this, our quality controllers continuously check the entire range on different parameters so as to ensure its defect-free nature. Our quality testing laboratory is well-equipped with modern machines and technology that are necessary for bulk production.
Why Us?
Our range of Screw & Barrel is exclusively used in numerous engineering industries and many more similar application areas. These products are efficiently manufactured using the latest techniques and technology, which increase their performance and quality. We are also committed towards achieving the maximum customer satisfaction. Furthermore, following factors are responsible for making us the most prominent choice among our customers:
· Streamlined business operations
· Well-integrated infrastructure
· Timely delivery
· Dexterous workforce
· Competitive prices
. Countrywide distribution network
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