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Rubber preforming production line?

Time：

2020-05-07

The rubber pre‑forming extruder primarily consists of a plunger‑type extrusion unit and a die‑cutting system mounted on the die head, along with hydraulic, vacuum, heating, pneumatic, and electrical systems. During operation, the die head is opened, preheated and rolled rubber compound is loaded into the front of the barrel, and the die head is closed. The extrusion speed and cutting speed are adjusted, and the desired weight of the rubber billet is set; via computer‑controlled closed‑loop feedback, billets of precise weight are produced. The rubber pre‑forming extruder is a highly accurate, high‑efficiency machine for manufacturing rubber billets, used in production processes after mixing operations such as internal mixing and open‑mill blending of unvulcanized rubber, to feed the material into the calendering line.

The rubber pre‑forming extruder consists primarily of a plunger‑type extrusion unit and a die‑cutting assembly mounted on the die head. It is also equipped with hydraulic, vacuum, heating, pneumatic, and electrical systems. During operation, the die head is opened, preheated and rolled rubber compound is loaded into the feed barrel from the front, and the die head is closed. The extrusion speed and cutting speed are adjusted, and the desired weight of the rubber preforms is set; through computer‑controlled closed-loop feedback, preforms of the specified weight are produced.

The rubber pre‑forming extruder is a high‑precision, high‑efficiency machine for producing rubber blanks. In the manufacturing process, it is used to pre‑form rubber compounds after mixing operations such as internal mixing and open‑mill blending, prior to their entry into the sheet‑vulcanizing press. It can extrude strip‑shaped, annular, and complex three‑dimensional rubber blanks of medium to high hardness, with excellent dimensional accuracy and bubble‑free surfaces, making it ideal for producing rubber components, small tires, oil seals, O‑rings, tennis balls, valve stems, shoe soles, automotive parts, and other products.

A cold-feed rubber extruder can also be used as a rubber pre‑forming extruder. By installing a dedicated die head and integrating it with a cooling water tank, a multi‑ribbed belt puller, and a length‑cutting unit, it can serve as part of a rubber pre‑forming extrusion production line, complete with customer support.

Hebei Shuangda Rubber & Plastics Machinery Co., Ltd. is a modern enterprise integrating R&D, 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.