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Twin Screw Barrel

Your Professional Twin Screw Barrel Supplier

 

Our goal is to be your true partner in the twin screw barrel in China.Jinsheng bimetallic plastic machinery factory was established in 2004. It was developed as a large-scale and comprehensive company specializing in manufacturing the kinds of screws and barrels in zhoushan.Such as bimetallic barrel & screw 、conical twin screws & barrels 、parallel twin screws & barrels、single screw &barrel 、 rubber screw & barrel 、planetary screw & barrel and components apply for injection molding machine and extruder machine . For the material of screw and barrel we usually used: #45 steel,40cr,38crmoala, 42crmo,skd11,skd61 and high temperture alloy etc.

 

Why Choose Us

Advanced Technology

Our engineering department can design special screw and barrel design for some special plastic material such as HDPE, LDPE. This special design can provide high output with low energy consumption. With our great effort on product quality and services, we win a lot of support from different customers which from machinery and plastics field.

Global Market

Due to our high quality products and outstanding customer service, we have gained a global sales network reaching America, Germany, Brazil, Russia, Ukraine, India, Pakistan,Egpyt,Argentina and some other countries and regions.

 

 

 

OEM

Make the screw & barrel as per customers' drawings;Provide engineers to your factory for measuring the old screw and barrel, then make new one.Leveraging on advanced equipment and superior techniques, we can offer you products with high resistance, high quality and competitive price.

After-Sales Services

Jinsheng team aim at providing the best services to customers which include providing short lead time, best price and best after sales services.

 

 

 

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Advantages of Twin Screw Barrel
 
01/

Enhanced mixing capability
One of the most significant advantages of twin screw barrel is their superior mixing capability. The presence of two intermeshing screws facilitates thorough blending of multiple components, additives, and fillers, resulting in a homogenous and consistent product. This level of mixing prowess is particularly valuable in industries such as polymer compounding, where precise material distribution is paramount.

02/

Versatility across applications
Twin screw barrel boast exceptional versatility, accommodating a wide range of materials and applications. Whether you're working with polymers, food products, pharmaceutical formulations, or reactive materials, these extruders can handle them all with ease. Their adaptability and ability to process various materials make them a popular choice for industries seeking flexibility and efficiency in their production processes.

03/

Continuous processing efficiency
Efficiency reigns supreme in modern manufacturing, and twin screw barrel deliver on this front. Unlike batch processing, these machines operate continuously, reducing downtime and increasing productivity. The constant flow of material through the extruder streamlines production and enables seamless integration into automated systems, leading to substantial time and cost savings.

04/

Preservation of sensitive materials
Certain materials are susceptible to degradation when subjected to high temperatures and shear forces. Twin screw barrel address this concern through their low shear and temperature-controlled processing. This gentle treatment ensures that sensitive materials retain their desired properties, making them suitable for applications in the pharmaceutical, food, and biomaterial industries.

 

Types of Twin Screw Barrel
New Technology Conical Twin Screw Barrel
Conical Twin Screw Barrel
Bimetallic Twin Screw Barrel
Conical Twin Screw Barrel

Conical twin screw barrel
Conical twin screw barrel specifications the above are standard spcifications,for good plasticizing effect, we have different design of screw barrel to meet customer’s requirments.

 

Parallel twin screw barrel
Parallell twin screw barrel specifications l/d=18—40 according to different material and plastic product to choose different compress rate and l/d. Technical parameter and our manufactory even have many parallel twin screw barrel design of world –famous brand.

 

New technology conical twin screw barrel
Basic info model no.: Conical twin screw barrel type: Profile extruder automation: Automatic plastic processed: Pvc diameter for single screw: 20-500mm application: Pp pvc pe trademark: Pym specification: Ce sgs bv tuv hs code: 847790000.

 

Barrel for conical twin
Basic info model no.: Double screw barrel type: Profile extruder plastic processed: Pvc base material: 38crmoaia, 42crmo delivery: 25days trademark:Js-alloy origin: Zhoushan , zhejiang, China material: Plastic screw: Twin-screw heating-treatment: Nitrogen, electroplated hard-chrome finshed etc.

 

Screw for conical twin
Basic info type: Pipe extruder screw: Twin-screw computerized: Computerized base material: 38crmoala nitrided layer depth: 0.5-0.8mm surface roughness: Ra 0.4 bimetallic layer depth: 3 mm hardness after hardening&tempering.

 

Components of Twin Screw Barrel

 

The structure is relatively simple. In a large extruder, the structure of the twin-screw extruder barrel can be composed of several sections. Since the barrel is divided into several sections, the length of each section of the barrel is reduced, which brings convenience to the machining of the barrel.

 

However, for this type of extruder barrel composed of several sections, the inner diameter size after machining and the concentricity accuracy of the inner holes of the several sections of the barrel are difficult to be consistent.

 

In addition, the barrel of the segmented twin-screw extruder is connected by a flange, which will bring some difficulties to the layout of the heating and cooling equipment of the barrel, and the temperature control will not be too uniform.

 

In order to save more expensive alloy steel, the barrel of some large extruders adopts the method of inner hole lining or casting wear-resistant alloy layer. The outer casing of the extruder barrel can be cast from ordinary steel to achieve the purpose of reducing the manufacturing cost of the barrel.

 

Product Specifications

 


Standard spcifications of conical twin screw barrel(d/D)

24/52

25/55

35/76

45/90

45/100

50/105

50/110

51/105

55/100

55/110

55/120

58/124

58/125

60/125

65/120

65/132

68/143

68/147

70/135

70/140

75/150

80/143

80/156

92/188

95/191

95/193

105/191

105/203

105/213

100/200

 

Other Services

 

 

Delivery Details
35-45 days after receipt of the deposit.

 

Delivery time
For regular size, we have finished stock and semi-finished stock, 2weeks max enough for customized, normally 3~4weeks.

 

Packing & Delivery
100% Inspection for products according to drawing.
100% Qualified for products before delivery.
100% One year guarantee with inspection report & raw material MTC to customer.

 

Packing Details
The normal package is wooden box. If export to european countries,the wooden box will be fumigated.If container is too tigher,we will use pe film for packing or pack it according to customers special request.

 

Life time and guarantee
3~5years life time
One year min Guarantee

 

FAQ

Q: What is a twin-screw?

A: A twin screw extruder machine is a specialized equipment designed to process and extrude various materials, particularly polymers and plastics. Unlike its single-screw counterpart, the twin screw extruder features two parallel screws that rotate in the same direction within a heated barrel.

Q: What is the difference between single screw and twin-screw?

A: Compared to single screw extruders, twin screw extruders are more efficient in providing homogeneous mixing of different ingredients such as additives, fillers, and liquids. Mixing efficacy of single screw extruders could be improved by using mixing elements but not as effective as twin screw extruders.

Q: What is the working principle of screw and barrel?

A: The basic working principle of the extruder screw and barrel is to melt and compact the polymer, push it to the mold at constant pressure, constant temperature and constant speed, and form a parison in the molten state of the product through the mold.

Q: How many types of screw barrels are there?

A: There are two types of screw barrels through which we can produce the pvc pipe; a single screw barrel and a twin-screw barrel. Single screw extruders consume more power in comparison to the twin-screw extruder. Twin-screw barrel produces almost double output in the same power consumption.

Q: What is the gap between screw and barrel in mm?

A: The clearance between the screw flights and the barrel on new screws is between 0.005 and 0.010 in. (0.125 to 0.25 mm), less for very small screws and more for very big ones.

Zhoushan Dinghai Jinsheng Bimetallic Plastic Machinery Factory is one of the leading twin screw barrel manufacturers and suppliers in China. Leveraging on advanced equipment and superior techniques, we can offer you twin screw barrel with high resistance, high quality and competitive price. With many products in stock, we warmly welcome you to buy or wholesale our products.

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