Raj Engineering Works Odhav, Ahmedabad, Gujarat

Vented screws are essentially two screws in one. A vented or two-stage screw is essentially two screws on the same shaft. The first works as a conventional screw by feeding, melting, and conveying the polymer forward. The second screw does the same, except it is melt-fed by the first screw. The first screw operates with no head pressure, while the second has to overcome any head pressure from the die and other downstream components. In order to keep the vent section of the screw from filling and developing vent flow, the second screw must have more output capacity than the first screw. Proper design of a two-stage screw requires knowledge of the polymer viscosity, the output capacity of both stages, and the head pressure. Simply using a ratio in channel depths between the first and second metering sections is risky Proper venting with no leakage or vent flow does not depend solely on the design of the screw. The barrel vent opening has to be fitted with a contoured plug called a diverter. The diverter deflects polymer away from the opening or else it will quickly become filled with melt. Its design is more of an art than a science but there are many variations that work, all using the same principles. HOW DOES A VENTED SCREW FUNCTION?      First, it reduces the melt pressure to atmospheric, so there is no tendency for the polymer to be pumped out the vent opening. That is accomplished by increasing the channel volume so that the output of the extruder only partially fills the flights under the vent

We are largest and reputed manufacturer and supplier of vented screw in Ahmedabad. These are manufactured using standard quality EN41B Musco Material, procured from trusted supplier. Our screw are manufactured using advanced technology and machine which provide strong ability, durability, exact fitting, easy to use and remove etc. our products are specially designed to meet customers specific need and requirements.   Diameter ranges: 25 mm to 200 mm, Maximum Length: 5000 mm

Twin Screw Barrel, twin screw and barrel, twin screw barrel manufacturer, twin screw supplier India Backed by the profound experience of the industry, we are involved in the manufacture, supply and export of Twin Screw Barrel. The product is suitable for heat as well as shear sensitive material. These Screw Barrels are manufactured by using advanced tools and cutting-edge technology.  

We are largest and reputed manufacturer and supplier of twin screw barrel in Ahmedabad. These  are manufactured using standard quality EN41B Musco Material which is procured from reputed and trusted supplier.  Special Service for UPVC and CPVC Plastic pipe Manufacturers  Our screw are manufactured using advanced technology and machine which provide various features such as strong ability, durability, exact fitting, easy to use and remove etc. our products are specially designed to meet customers specific need and requirements. Features Accurate dimension Resistance to corrosion Maximum durability  Types:  KTS-90 Twin Screw barrel set KTS-120 Twin Screw barrel set KTS 140 Twin screw Barrel set  KTS 170 Twin screw Barrel set  KTS 200 Twin screw Barrel set  KTS-250 Twin Screw barrel set KTS-300 Twin Screw barrel set KTS-350 Twin Screw barrel set KTS 450 Twin screw Barrel set  KTS-500 Twin Screw barrel set 52-22 Twin Screw barrel set 52-25 Twin Screw barrel set 65-22 Twin Screw Barrel Set 65-22 Twin Screw barrel set 65-25 Twin Screw barrel set 65-28 Twin Screw barrel set 90-22 Twin Screw barrel set Nitrided Barrel Bimetallic Barrel Parallel Screw Barrel

We are largest and reputed manufacturer and supplier of twin screw in Ahmedabad. We offer a broad range of product which used in various industrial applications. These products are manufactured using standard quality EN41B Musco Material which is procured from reputed and trusted supplier. These are most common type of twin screw. Features Accurate Dimension Resistance to Corrosion High Durability Competitive Price  What is Twin-Screw Extrusion?  Twin-screw extruders are well-established in the industry for mixing, compounding and processing of viscous materials. They are used in a great variety of polymer, pharmaceutical and food applications. The flexibility of twin-screw extrusion equipment allows designing these machines specifically to the desired task. Twin-screw extruders can have aconical or paralleldesign. The two screws can becounter-rotating or co-rotating,intermeshing or no-intermeshing.Also, the configurations of the screws themselves can be varied using different conveying and mixing elements. Counter-rotating twin-screw extruders are used mainly for processing PVC products, such as pipe, profile, sheet, pellets and film. The co-rotating units are used for compounding materials where thorough mixing is important. Co-rotating twin-screw extruders usually have modular configurations, which makes the equipment quite flexible for adapting to changing applications and material properties.

We are largest and reputed manufacturer and supplier of Single Screw Barrel in Ahmedabad. We offer a broad range of product which used in various industrial applications. These products are manufactured using standard quality EN41B Musco Material which is procured from reputed and trusted supplier. These are most common type of Single Screw Barrel. Our Single Screw Barrel are manufactured using advanced technology and machine which provide various features such as strong ability, durability, exact fitting, easy to use and remove etc. our products are specially designed to meet customers specific need and requirements. Features Accurate Dimension Resistance to Corrosion High Durability

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We are largest and reputed manufacturer and supplier of single screw in Ahmedabad.  These products are manufactured using standard quality EN41B Musco Material which is procured from reputed and trusted supplier. r screw are manufactured using advanced technology and machine which provide various features such as strong ability, durability, exact fitting, easy to use and remove etc. our products are specially designed to meet customers specific need and requirements.  

Torpedo, Torpedo manufacturer in India We are offering a wide assortment of Torpedo which is manufactured using premium quality raw material, procured from our trusted vendor base. These products are highly demanded for their wide application in various industrial sectors. 

Model Number : Rajeng6

Lamination plant PPTQ film plant Raffia tape stretching line plant Our Highly precised zero tolerance (0.1) and fair price policy make us the most reliable screw barrel manufacturer for plastic pipe extrusion industry. Screw diameter 32mm to 200mm Screw length Maximum 5 meter in one piece and 6 meter in two piece. Barrel OD upto 250mm. Material- EN41B nitriding steel Gas Nitriding- Thickness from 0.5 to 0.7 mm, hardness ~ 60-70 HRC ~ 1000 HV. Production time- Within 4 weeks depending on the complexity of the part

Injection molding apparatus wherein a torpedo is mounted at the front end of a nozzle to provide a fixed ring gate. The torpedo has an elongated central shaft with a nose portion which projects forwardly into a cylindrical opening extending through the mold to the cavity. The outer surface of the nose portion is sufficiently spaced from the inner surface of the opening to form the ring gate through which the melt flows into the cavity. The nose portion of the central shaft enhances heat transfer during the injection cycle and thus reduces cycle time and provides cleaner gates.

Screw barrel for plastic reprocess (granule manufacturing). Screw barrel for masterbatch. We manufacturer every kind of screw barrel for plastic granules like LD, LD core granules, LD/HM/PP/PS/PE/PVC reprocess granules screw barrel, HDPE/LLDPE plastic granules screw barrel, transparent plastic granule screw barrel, multicolor plastic granule screw barrel, LD/PVC pallet machine screw barrel, Black/white/milky white/green/blue plastic granule reprocessing machine screw barrel, PS virgin granule screw barrel, poly butylene screw barrel, UHMPE, CP, PS, PPCP, MDPE, VLDE, CPE palletinsing/granule manufacturing screw barrel.

With the due assistance of our deft professionals, we are making available top-of-the-line quality products from Gujarat(India). Our capacious warehouse is installed with all required amenities essential for safe storage of the products. Furthermore, our warehousing system is efficiently managed by our team of experts.

PPHDPE BOX STRAPPING, SUTLI & MONOFILAMENT PLANT SCREW BARREL PHDPE Box strapping plant Sutli plant Monofilament plant Our Highly precised zero tolerance (0.1) and fair price policy make us the most reliable screw barrel manufacturer for plastic pipe extrusion industry. Material: EN41B nitriding steel Gas Nitriding: Thickness from 0.5 to 0.7 mm, hardness ~ 60-70 HRC ~ 1000 HV. Production time: Within 4 weeks depending on the complexity of the part

Axially grooved barrels - with grooves running along the axis of the barrel Helically grooved barrels - with grooves running helically within the barrel Grooves manufactured as: square grooves trapeze grooves sickle grooves round grooves or any special shapes according to client requirements Maddock and Mixers: Various models of maddock and mixers are used in screw design, in order to prevent mixing problems. With the use of the correct type of maddock and mixers in the screws in correct areas, the more homogenous mixtures can be provided and mixing problems can be prevented. Features Optimum Performance Tough construction Long service life Cost effective

With many polymers, grooved-feed extruders produce 20-40% higher output per rpm than the same diameter extruder with a smooth feed bore. A grooved feed section improves solids conveying and increases extruder pumping action, thereby raising output at a given extruder rpm, reducing energy put into the polymer, and lowering melt temperature.

We are largest and reputed manufacturer and supplier of Conical Screw Barrel in Ahmedabad. We offer a broad range of product which used in various industrial applications. These products are manufactured using standard quality EN41B Musco Material which is procured from reputed and trusted supplier. These are most common type of Conical Screw Barrel. Our screw are manufactured using advanced technology and machine which provide various features such as strong ability, durability, exact fitting, easy to use and remove etc. our products are specially designed to meet customers specific need and requirements. Features Long Durability Corrosion Residency Competitive Price

One of the advantages of barrier screws is that for the most part they eliminate the problems associated with solids-bed breakup that are typical in conventionally flighted screws. Many conventional screws have to rely on restrictive mixing sections to complete the melting process because solids conveyed into the metering section are difficult to melt We are largest and reputed manufacturer and supplier of Brrier Screw Barrel in Ahmedabad.  These  are manufactured using standard quality EN41B Musco Material which is procured from reputed and trusted supplier. Features   Accurate Dimension Resistance to Corrosion High Durability Diameter up to 300 mm lenghth maximum 5000 mm

We are largest and reputed manufacturer and supplier of single screw in Ahmedabad. These products are manufactured using standard quality EN41B-MUSCO Material which is procured from reputed and trusted supplier. Diameter ranges- 25 mm to 200 mm, Maximum Length- 5000 mm. Our screw are manufactured using advanced technology and machine which provide various features such as strong ability, durability, exact fitting, easy to use and remove etc. our products are specially designed to meet customers specific need and requirements. APPLICATION AND ADVANTAGES OF BARRIER SCREW Barrier screws have a number of advantages, but the most important is the ability of the designer to pinpoint the location where melting is to be completed. In conventional screws, the typical melting pattern occurs in the compression section. The channel depth is gradually reduced in this region, forcing unmelted polymer outward, where it is subjected to high shear forces that cause it to melt. One of the advantages of barrier screws is that for the most part they eliminate the problems associated with solids-bed breakup that are typical in conventionally flighted screws. Many conventional screws have to rely on restrictive mixing sections to complete the melting process because solids conveyed into the metering section are difficult to melt. With barrier screws this is essentially eliminated, as solids are trapped in the solids channel until they pass over the barrier and/or a high-shear section at the end of the barrier section. Barrier screws are a way to increase throughput of single-screw extruders and to improve melt quality. They keep unmelted solids in the primary screw channel by increasing the flight clearance on the downstream side, while letting the fluid melt escape over the barrier flight into the secondary channel. That way, the solids don't randomly disperse into the metering section. This allows for extrusion at higher pressures and higher rates without sacrificing melt quality. Barrier screws are popular in applications like blown film that require low melt temperature and high output rate with consistent melt quality. Today many barrier designs also incorporate a mixing section to maximize extrusion quality. In injection molding, barrier screws reduce recovery times and improve melt quality.