The butyl rubber extruder is specifically designed to accommodate the unique properties of butyl rubber. Because butyl rubber is both soft and highly adhesive, conventional forced-feed feeders often cause the material to surge unpredictably, entering the gaps between rotating bearings and, over time, leading to bearing damage. To address this issue, we have developed a dual‑arm conjugate feeding extruder. This innovative feed head, paired with the extruder’s barrel and screw, enables the machine to handle block‑shaped rubber. Once the butyl rubber enters the extruder barrel, it undergoes shearing, compression, and other forms of processing by the screw, before being extruded and shaped at the die.

The screw design of a butyl rubber extruder is tailored to the material’s relatively soft nature, with the thread geometry and compression ratio carefully optimized accordingly. Typically, such extruders employ pin‑type rubber barrels to enhance extrusion pressure within the machine. The screw is usually divided into three sections: a conveying zone, a compression zone, and a metering zone. Temperature control is managed in accordance with the functional zones of the barrel and screw. In twin‑screw conjugate feed rubber extruders, the barrel is commonly segmented into three temperature zones to regulate the process. Furthermore, each extruder’s barrel and screw are fitted with water jackets for precise temperature regulation, ensuring consistent and uniform rubber temperatures during operation.

Applications of the Butyl Rubber Extruder Production Line

Our main products include butyl tape, foamed butyl tape, automotive vibration-damping pads, butyl sealant for automotive windshields, butyl sealing strips for high-speed rail glass, butyl sealing strips for architectural glass curtain walls, aluminum‑foil‑backed butyl waterproofing membranes, nonwoven‑backed butyl tape, chewing gum, and more.

Performance Characteristics of Butyl Rubber Extruders

1. This machine is equipped with an AC motor and a variable-frequency drive, offering a wide speed-regulation range, excellent adaptability to the production of butyl rubber products in various specifications, and convenient operation.

2. This machine is equipped with a hardened‑tooth‑surface rubber extruder reducer, which features low noise, high transmission torque, smooth operation, and convenient maintenance.

4. This machine is equipped with a dual-channel automatic temperature controller, ensuring minimal temperature fluctuations during heating. It allows for optimal selection of the heating temperature based on different processing requirements and automatically maintains the set temperatures of the heated barrel and die head.

Working principle and applications of the dual-station rewinder:

The butyl tape double‑station rewinder consists of a power‑reduction unit, tension‑controlled winding, and a metering system. It is easy to operate and control, equipped with a metering device that transmits signals for accurate length measurement. With its simple operation and independent dual‑station control, workers can change rolls without stopping the machine, thereby boosting production output.

The double-station winding machine for butyl tape is designed and manufactured by Hebei Shuangda Rubber & Plastics Machinery Co., Ltd. It is used in the production process of butyl tape to minimize bending, twisting, and deformation, thereby improving the yield of qualified products. The machine features convenient operation, stable performance, high efficiency, reduced labor intensity for operators, and increased production output.

Hebei Shuangda Rubber & Plastics Machinery Co., Ltd. is a modern enterprise integrating research and development, manufacturing, and sales of complete sets of extrusion equipment for rubber, silicone, and plastics. The company’s 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 machinery for engineering seals, automotive seals, wire and cable applications, air‑conditioning hoses, braided hoses, automotive hoses, waterstop strips, and related products.