The SJ25-25 co extrusion single screw extruder is an important component of co extrusion technology. It is specially developed to adapt to small co extrusion flow and can be connected to different forms of main machines. In co extrusion molding of profiles, the extruder that extrudes "small materials" is generally referred to as SJ25-25 co extrusion single screw extruder, and the extruder that extrudes the main profile is referred to as the main extruder. For co extrusion of hard PVC profiles, twin-screw extruders are commonly used as the main extruder, and single screw extruders are commonly used for SJ25-25 co extrusion single screw extruders, with small machine series such as 25 and 30 models being the most common. The main purpose of SJ25-25 co extrusion single screw extruder is to be used in conjunction with various main extruders, and it can also be used independently with appropriate heads to produce various products.

The main structural difference between SJ25-25 co extrusion single screw extruder and ordinary extruder lies in the design of the frame. According to the different frames, SJ25-25 co extrusion single screw extruders can be divided into two types: external and online. The external SJ25-25 co extrusion single screw extruder can be divided into three types according to the installation position: vertical, horizontal, and angular SJ25-25 co extrusion single screw extruders; The online SJ25-25 co extrusion single screw extruder can be placed on the main extruder or on the shaping table. The SJ25-25 co extrusion single screw extruder has the following characteristics:

① Compact structure and small footprint;

② Small control system, easy to operate;

③ Mobile rack, easy to disassemble and repair;

④ Convenient channel interface with strong versatility.

In co extrusion technology, the layout of the extruder is also important. For newly built extrusion systems, if space permits, extruders can be arranged side by side or in a star shape, and can be designed in a compact and easy to operate and maintain form; For the existing extrusion system, the above layout can be adopted, or the SJ25-25 co extrusion single screw extruder can be installed shoulder mounted on the main extruder.

Single screw co extrusion marking line extruder, model SJ25/25

• Zhejiang Jiale frequency converter
• Barrel: 38CrMoA1A, nitrided treatment, forced water-cooled feeding section
• Screw: 38CrMoA1A, nitrided treatment
• Zhangjiagang Huade Machinery Technology SJ25/25pe, PPR color marking single screw host plastic pipe extruder

Technical Specifications

Screw diameter: Φ 25mm

Screw length to diameter ratio: 25:1

Zhangjiagang Huade Machinery Technology SJ25/25pe, PPR color marking single screw host plastic pipe extruder

◆ Drive motor power: 0.75KW