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Hebei Shuangda participated in the 18th China International Rubber Technology Exhibition (Qingdao) in 2021.

Hebei Shuangda will be exhibiting at the 18th China International Rubber Technology Exhibition (Qingdao) in 2021, held from July 18 to 22 at the Qingdao Hongdao International Convention and Exhibition Center, located at No. 326 Huoju Road, Chengyang District, Qingdao. Our booth number is A52, near the entrance of Hall A3. Our equipment includes a rubber filtration machine, a composite rubber hose extruder, an integrated automatic pipe‑cutting and pulling unit, a butyl rubber twin‑arm feeding extruder, a composite plastic extruder, an automatic winding machine, and more. We warmly welcome both new and existing customers to visit!

2021

06-23

Development Trends of Extruders

1. Modularity and Specialization Modular production of plastic extruders can accommodate the specific requirements of diverse customers, shorten the R&D cycle for new products, and help capture a larger market share. Meanwhile, specialized manufacturing enables the systematic modules and components of extrusion equipment to be produced at designated locations or even sourced globally, which is highly beneficial for ensuring overall quality, reducing costs, and accelerating capital turnover.

2021

06-21

The Development History of Extruders and Their Classification and Composition

Since the invention of the first extruder, extrusion technology has advanced rapidly—evolving from early plunger-type machines to more sophisticated screw‑type designs, from manual operation to fully automated control, and from producing single‑purpose products to a diversified range of materials. Extrusion molding technology has steadily matured. Today, it boasts high production efficiency, ease of manufacturing, and continuous operation, holding a pivotal position in the plastics processing industry. Over the past half-century, China’s plastics industry has grown from scratch to become a major sector, particularly experiencing rapid expansion over the nearly two decades since the reform and opening-up. A comprehensive industrial system with a full spectrum of products has taken shape, and output now ranks among the highest in the world.

2021

06-15

Silicone snap fastener production line

Features of Silicone Snap-On Protective Covers - Protects the appearance of sealed products, prevents them from falling off, and provides both decorative and protective functions. - Can be printed with various patterns to enhance aesthetics, offering a beautiful and elegant look. - Possesses softness and elasticity, ensuring no deformation even after prolonged use. - The silicone cover provides excellent non-slip performance and offers a pleasant tactile experience. - Made from silicone rubber, these snap-on sleeves exhibit superior electrical insulation, outstanding resistance to electrical tracking, excellent weatherability, high mechanical strength, and good thermal stability. They are easy to install, saving labor and time. They are used to protect transmission lines—such as incoming/outgoing lines and jumpers—from short circuits caused by wind‑blown bare conductors, as well as from corrosion due to acidic or alkaline substances like salt spray, dirt, and bird droppings. These products are particularly suitable for addressing issues such as bird damage, complex residential areas, and overhead bare conductors crossing above demolished buildings. They also effectively safeguard bare conductors that frequently experience foreign object interference when passing through tunnels, culverts, or bridges, while resisting oxidation and degradation caused by sandstorms, humid air, and acid rain. - Prevents short-circuit-related power outages caused by foreign objects bridging conductors. - Slows down outdoor corrosion of bare metal conductors. - Reduces the risk of electric shock accidents. - Mitigates major incidents involving reptiles or other small animals interfering with substation transmission lines, thereby ensuring the reliable operation of transmission systems. - Enables clear, simple, and precise identification of phase sequences. - The ceramic‑coated fire‑resistant version can also be applied to cable protection near blast furnaces in steelmaking and rare earth smelting operations, preventing molten steel splashes from damaging cables. This provides effective protection, significantly reducing power outages, production stoppages, maintenance needs, and the frequency of cable replacements. Hebei Shuangda Rubber & Plastic Machinery Co., Ltd. is a modern enterprise integrating R&D, manufacturing, and sales of complete sets of extrusion machinery for rubber, silicone, and plastics. The company’s main product lines include rubber extruders, rubber hose extrusion lines, three‑layer composite sealing strip extrusion lines, silicone sealing strip production lines, plastic sealing strip production lines, plastic profile extrusion lines, plastic pipe extrusion lines, elastomer extruders, and other extrusion equipment. Additionally, the company manufactures production equipment for engineering seals, automotive seals, wire and cable applications, air conditioning hoses, braided tubes, automotive hoses, waterstop strips, and related products.

2021

06-13

How to Choose a Rubber Filter Press Manufacturer

For many users who require rubber filter presses, purchasing directly from manufacturers is the preferred option due to the numerous advantages. However, with so many rubber filter press manufacturers on the market today, it can be challenging to make an informed choice. So how should you select a reliable manufacturer? In the following discussion, we’ll walk you through the key factors to consider.

2021

06-12

Components of a Plastic Extruder

In plastic extrusion equipment, the plastic extruder is typically referred to as the main machine, while the downstream auxiliary equipment that works in tandem with it is called the auxiliary machine. Over more than a century of development, plastic extruders have evolved from their earliest single-screw, multi-screw, and even screwless designs. These extruders can be paired with various plastic‑forming auxiliary units to create diverse extrusion production lines, enabling the manufacture of a wide range of plastic products. Consequently, both today and in the future, plastic extrusion machinery will remain one of the most widely used types of equipment in the plastics processing industry.

2021

06-09

Rubber Two-Component Production Line Process

The two‑stage rubber extrusion production line consists of two rubber extruders connected via a common composite die head, enabling co‑extrusion to produce finished products. Since the primary function of a rubber extruder is extrusion molding, the extruded product must subsequently undergo shaping and curing. Therefore, after extrusion, the material passes through a 30‑meter hot‑air curing oven for in‑line setting. This two‑stage rubber extrusion line combines an extruder of type 90 with one of type 65 to achieve composite extrusion. The specific model configuration of the extruders required for this composite line is determined by the size of the rubber product and the desired proportion of each rubber compound within the final item. In rubber manufacturing, composite extruders are primarily used for producing tire tread compounds, automotive sealing strips, colored bicycle tire treads, laminated hoses, plastic–rubber composites, and multi‑layer co‑extruded rubber sheets. Composite extrusion technology represents a highly advanced process in the rubber industry, allowing manufacturers to tailor formulations and material properties according to specific performance requirements. By employing composite extrusion equipment, it is possible to both reduce material consumption and achieve products with diverse functional characteristics. Rubber extruders are fundamental machinery in the rubber industry and play a critical role in determining product quality, particularly in the production of tires and various rubber goods. Internationally, the evolution of rubber extruders has progressed through several stages: plunger‑type extruders, screw‑type hot‑feed extruders, conventional cold‑feed extruders, twin‑screw cold‑feed extruders, vented cold‑feed extruders, pin‑type cold‑feed extruders, and finally composite extruders. Hebei Shuangda Rubber & Plastics Machinery Co., Ltd. is a modern enterprise integrating research, development, manufacturing, and sales of complete sets of extrusion equipment for rubber, silicone, and plastics. Its main product lines include rubber extruders, rubber hose extrusion lines, three‑component sealing strip extrusion lines, silicone sealing strip production lines, plastic sealing strip production lines, plastic profile production lines, plastic pipe production lines, elastomer extruders, and other extrusion equipment. Additionally, the company manufactures production machinery for engineering seals, automotive seals, wire and cable applications, air‑conditioning hoses, braided hoses, automotive hoses, waterstop strips, and related products.

2021

06-07

How can you assess the strength of a rubber extruder manufacturer?

Rubber extruders and their auxiliary equipment are among the most widely used and critical pieces of machinery in the rubber industry. As market demand for rubber extruders continues to grow, an increasing number of manufacturers have emerged, making it challenging for users to select the right supplier. Under these circumstances, understanding how to assess a manufacturer’s capabilities becomes essential. So, on what criteria should one evaluate the strength and reliability of a rubber extruder manufacturer?

2021

06-05

Mechanisms for Selecting Rubber Extruder Manufacturers

1. Establish a Selection Team The purchasing organization forms a dedicated team to oversee and execute the evaluation of rubber extruder manufacturers. Members of this team are primarily drawn from departments closely aligned with the supply chain, such as procurement, quality, production, and engineering. 2. Analyze the Market Competitive Environment Gain an understanding of current product demand, as well as the types and characteristics of available products, to determine whether establishing a supplier relationship is warranted. If such a relationship is established, it is essential to assess, in light of evolving demand, whether adjustments to the supplier partnership are necessary; analyze the current status of these potential changes; and identify any existing issues within the organization.

2021

06-03

Rubber Pre-Forming Extrusion Line

The rubber pre‑forming extruder mainly consists of a plunger‑type extrusion unit and a die‑mounted rubber‑blank cutting device, complemented by hydraulic, vacuum, heating, pneumatic, and electrical systems. During operation, the die is opened, preheated and rolled rubber compound is loaded into the front of the barrel, and the die is closed. The extrusion and cutting speeds are adjusted, and the desired blank weight is set; computer‑controlled closed‑loop feedback ensures precise blank weights. The rubber pre‑forming extruder is a highly accurate, high‑efficiency machine for producing rubber blanks. It can extrude various strip‑shaped, annular, and three‑dimensional complex blanks with medium to high hardness, delivering blanks of excellent dimensional accuracy and free of air bubbles—making it ideal for manufacturing rubber components, small tires, oil seals, O‑rings, tennis balls, valve stems, shoe soles, automotive parts, and more. A cold‑feed rubber extruder can also serve as a rubber pre‑forming extruder when equipped with a specialized die, cooling water tank, multi‑ribbed belt puller, length‑cutting device, and other auxiliary equipment, forming a complete pre‑forming extrusion production line while providing customers with technical support. Hebei Shuangda Rubber & Plastics Machinery Co., Ltd. is a modern enterprise integrating R&D, manufacturing, and sales of complete sets of extrusion machinery for rubber, silicone, and plastics. Its main products include rubber extruders, rubber hose extrusion lines, three‑layer composite sealing strip extrusion lines, silicone sealing strip production lines, plastic sealing strip production lines, plastic profile production lines, plastic pipe production lines, elastomer extruders, and other extrusion equipment, as well as production facilities for engineering seals, automotive seals, wire and cable components, air‑conditioning hoses, braided tubes, automotive hoses, waterstop strips, and related products.

2021

08-06

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