A single barrier screw can efficiently separate melted material from non-melting material into separate channels. The melted material is homogenized while the temperature is kept constant. The mixing is achieved with an undulating root profile in the screw’s metering zone.
The product is available with a diameter range of 40mm to 180mm.

APPLICATIONS

• LDPE / HDPE / PP Film
• PVC cable
• ABS
• PVC Profile

Kesar Extrusions manufacturers parallel twin screws and barrels with a screw diameter of up to 150mm. We offer screws and barrels that rightly meet all the necessary technical specifications. This makes us one of the few companies to offer the most precise parallel twin screw & barrel. The compression ratio of screws can be designed based on different products and mixtures.

Technical Specifications

Diameter	Ø45-Ø200
L/D ratio	16-35
Hardness after Hardening & Tempering	HB280-320
Nitrided hardness	950-1100HV
Nitrided layer depth	0.5-0.8mm
Nitrided brittleness	Less than 2 level
Surface roughness	Ra 0.4 μm
Linearity of screw	0.015mm/m
Bimetallic layer depth	≥ 2.5mm
Bimetallic hardness	HRC60-72
Hard-chrome plating hardness after nitriding	≥ 950HV
Chrome-plating layer depth	0.025-0.10mm

Applications

• PVC Pipe
• CPVC Pipe
• Profile
• Sheet

Our range of Injection Moulding Screw & Barrel is crafted using the latest technologies. These are available in various forms of nitrides such as gas, plasma, etc., based on the client specifications and rightly meet the industrial requirements. Constructed based on length/diameter ratio, these are very user friendly and considered to be advanced due to impressive performance. The screw can be chosen based on different ingredients and products.

Technical Specifications

Screw diameter	Ø20-Ø220
Hardness after Hardening & Tempering	HB280-320
Nitrided hardness	950-1100HV
Nitrided hardness	950-1100HV
Nitrided layer depth	0.5-0.8mm
Nitrided brittleness	Less than 2 level
Surface roughness	Ra 0.4 μm
Linearity of screw	0.015mm/m
Bimetallic layer depth	≥ 2.5mm
Bimetallic hardness	HRC60-72
Hard-chrome plating hardness after nitriding	≥ 950HV
Chrome-plating layer depth	0.025-0.10mm

APPLICATIONS

• Injection Moulding Machineries

The company manufacturers conical twin screw & barrel with a diameter of up to 80mm. These screws & barrels are crafted using the latest technology and keeping in mind the current requirement in the market. As a result, we are most preferred when it comes to conical twin screw & barrel. The compression ratio of the screws can be designed according to different products and mixtures.
The standard specifications are listed below. However, we do work on customized specifications based on the customers’ requirements.
45/90, 45/100, 50/105, 51/105, 55/110, 55/120, 58/124, 60/125, 65/120, 65/132, 68/143, 70/135, 70/140, 75/150, 80/143, 80/156, 92/188

Technical Specifications

Hardness after Hardening & Tempering	HB280-320
Nitrided hardness	950-1100HV
Nitride layer depth	0.5-0.8mm
Nitrided brittleness	Less than 2 level
Surface roughness	Ra 0.4 μm
Linearity of screw	0.015mm/m
Bimetallic layer depth	≥ 2.5mm
Bimetallic hardness	HRC60-72
Hard-chrome plating hardness after nitriding	≥ 950HV
Chrome-plating layer depth	0.025-0.10mm

APPLICATIONS

• PVC Pipe
• CPVC Pipe
• Profile
• Sheet

Due to their strength and an excellent finish, Maddoc Barrier Screws are highly preferred by the industry. These consist of various diameters based on the clients’ requirements and a length of up to 6 meters. Maddoc Barrier Screws are widely used in the plastic and food processing industries.
It has a minimum diameter of 40mm and is also available in sizes based on the customers’ requirements.

APPLICATIONS

• HDPE Pipes
• XLPE Cables
• Lay Flat Pipe
• LLDPE Tubing
• PP Film
• Mono Filament

The groove feed barrel facilitates efficient transportation of material and is used for achieving high shear. The coefficient of friction between the screw & barrel and the granules should be higher, as it facilitates proper melting of the material. Therefore, it is highly crucial to have groove feed in the barrel.
It has a minimum diameter of 35mm and is also available in sizes based on the customers’ requirements.

APPLICATIONS

• LDPE / HDPE / PP Film
• Raffia / Mono Filament

Built using the international standards, Bimetallic Screw & Barrel is known for its efficient performance. Different grades of coating are available for different types of processing material. Bio metallic powder forms are categorized based on the hardness. The product consists of different types of coating with certain layers.

Technical Specifications

Diameter	Ø45-Ø200
L/D ratio	16-35
Linearity of screw	0.015mm/m
Bimetallic layer depth	≥ 2.5mm
Bimetallic hardness	HRC60-72

APPLICATIONS

• Suitable for processing nylon
• Fiberglass
• Bakelite
• PVC
• CPVC