
Model | Extruder | Diameter(mm) | Extrusion speed(m/min) | Capacity(kg/h) |
SBG600 | SJ90,SJ75 | 225-500 | 0.1-3.5 | 650-800 |
Φ20-Φ110 | SJ120,SJ90 | 225-800 | 0.1-3.5 | 800-1200 |

Double-wall pipe production line is mainly used for bellows.The main equipment is single screw extruder, mold, molding machine, spray box,haul-off,cutting machine, stacker.Our machines use well-known parts at home and abroad, electrical appliances use Schneider and ABB, to provide customers with reliable technical support for stable production.
Different types of extruder, different output, different specifications of extruder for different types of products.Also need to match different auxiliary machinery.
Single screw extruder
According to the diameter of the pipe to determine the extrusion model number.
Mold
Plastic extruder extrusion through the mold plasticizing kneading, mould, both inside and outside layer spiral direction crisscross, form the inside and outside the tube billet molecular chain crisscross, after the plastic melt in the helix overlap, the result is the strength of the pipe has been greatly enhanced, greatly improving the impact resistance of pipe, the pipe extrusion forming, to finalize the design module of molding machines,The mold is co-extruded by two cone twin - screw extruders during production.
Molding machine
Fan cooling and vacuum pump are used to cool and finalize the product.
Haul-off
The tractor is a machine that pulls the pipe after it is produced, and controls its traction speed and rotation through the frequency converter.Different specifications of pipes need different types of tractors.The larger the size, the more claws the tractor has
Cutting machine
The length of the pipe is controlled by the travel switch or the encoder. When the length is set by us, the length will be automatically fixed by the cutting machine.