A rubber filter machine, also known as a rubber refining extruder, is widely used in the production of EPDM reclaimed rubber products. During rubber manufacturing, cost‑saving measures often involve using reclaimed rubber for extrusion; however, this recycled material frequently contains impurities such as nylon cords and metal filings. Therefore, prior to processing, the rubber must be filtered through a refining extruder before further production can proceed. The refining extruder is a type of rubber extruder, and it is commonly operated using a hot‑feed rubber extruder. To prepare the equipment, the extruder’s barrel and screw are preheated to 30–50°C via a temperature‑control system, or the rubber can be repeatedly extruded without a die to warm the barrel and screw. Once the machine reaches the desired operating temperature, rubber can be fed into the extruder’s feed system for production. Inside the refining extruder’s barrel, the rubber is heated and begins to plasticize, forming a viscous, molten mass. As the extruder screw rotates, its threads impart a forward thrust, continuously conveying the rubber toward the die. The molten rubber then passes through a filtration screen at the die, which traps impurities on the opposite side. During the filtering process, the extruder’s screen should be cleaned or replaced regularly to maintain optimal filtration performance. Common models of rubber refining extruders include the 150‑type and the 200‑type; the appropriate model is selected based on the volume of rubber being processed. Choosing the right model ensures that the rubber‑filtering extruder provides reliable service for your production needs.

Equipment用途:

This machine is primarily used to remove impurities from natural and reclaimed rubber. It is suitable for rubber manufacturers to filter rubber compounds, and it can also be employed for filtering and sheeting silicone and rubber materials.

It is primarily used for filtering rubber or plastic compounds during mixing, removing foreign matter and impurities. This machine employs the screw’s pushing and conveying action to eliminate contaminants from the compound or reclaimed rubber. It consists mainly of a screw, a barrel, a filter head, and a drive mechanism. The filter head is equipped with a perforated plate and a filtration screen; the plate supports the screen and serves as the discharge port, with apertures ranging from 4 to 8 mm that are conically enlarged in the direction of material flow. The length-to-diameter ratio of the filter screw is typically around 5:1.

Safety Operating Procedures for the Glue Filtration Machine:

1. Preheat the machine head and body to the specified temperature before filtration.

2. The motor load must not exceed the specified limit.

3. The mixed adhesive that has already been scorched shall not be filtered, and the filtered mixed adhesive shall not contain any scorched particles.

4. Cold glue must not be filtered; if filtration is necessary, it must first be softened by pressing before filtering.

5. Do not introduce metallic or other foreign materials into the rubber extruder.

6. It is strictly prohibited to insert adhesive into the feeder by hand or to remove adhesive while the machine is running.

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 extrusion lines, plastic pipe extrusion 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.