News

Trade news

Company news

FAQ

Shuangda Cold-Feed Rubber Extruder

Time：

2019-10-21

Hebei Shuangda manufactures rubber cold-feed extruders. Compared with hot-feed rubber extruders, cold-feed rubber extruders are also referred to as forced-feed rubber extruders. Their key feature is the ability to feed in cold‑sheet rubber during the filling process. The barrel and screw of a cold-feed rubber extruder are relatively long, meaning that its length‑to‑diameter ratio is greater than that of a hot-feed extruder. Consequently, its output per unit time is lower than that of a hot-feed extruder, and it requires a significantly higher power rating. During operation, the plasticization section of a cold-feed rubber extruder is notably longer.

Hebei Shuangda manufactures rubber cold-feed extruders. Compared with hot-feed rubber extruders, cold-feed rubber extruders—also known as forced-feed rubber extruders—are distinguished by their ability to process cold‑sheet rubber. These machines feature relatively long barrels and screws, resulting in a higher length‑to‑diameter ratio than that of hot‑feed extruders. Consequently, their throughput per unit time is lower, and they require significantly greater power input.

During operation, cold-feed rubber extruders feature a relatively long plasticization section, which ensures stable extrusion. This enables the rubber to be uniformly and steadily conveyed out of the extruder barrel, thereby achieving the consistent quality required in finished‑product manufacturing. Most conventional cold-feed rubber extruders are equipped with temperature‑control systems; however, since different products impose varying equipment‑configuration requirements, the specific type of cold-feed extruder used can differ depending on the application. Common types include vented‑type and pin‑type rubber extruders. For producing sealing strips, vented extruders are typically employed, whereas pin‑type extruders are more commonly used for manufacturing rubber hoses. Once the rubber is fed into the barrel via the feeding system, the temperature‑control system raises its temperature to achieve proper plasticization. As the extruder screw rotates, the screw flights subject the rubber to shearing, compression, and intensive mixing, among other processing steps. Finally, at the die head, the material is extruded and shaped into the desired product form.

The company’s main products include cold-feed rubber extruders, rubber hose extrusion lines, three‑layer composite rubber sealing strip production lines, silicone extrusion lines, plastic sealing strip production lines, plastic profile production lines, plastic pipe production lines, elastomer extruders, and other extrusion equipment, as well as manufacturing equipment for engineering seals, automotive seals, wire and cable applications, air‑conditioning hoses, braided hoses, automotive fuel lines, waterstop strips, and related products.

Contact numbers: Manager Jiang, 13463938789, 15297468789