China OEM Peroxide XLPE Production Line Co-Kneader Compounding Extruder Machine near me factory

Product Description


XLPE Peroxide cross-linked Compounds:
Polyethylenes (PE) have outstandingly good insulation properties. A temporary temperature rise, e.g. due to CZPT loading, can however cause a complete breakdown of PE cable insulation. The relatively low softening or melting point leads to thermo-mechanical failure or even dripping of the Insulation. Cross-linked polyethylene (PEX) is more thermosetting than thermoplastic. It can therefore be used at significantly higher operating temperatures, is mechanically stronger, more resistant to organic liquids, and often enables thinner wall thicknesses. Various cross-linking methods are used.
The basic formula of peroxide cross-linked XLPE includes PE and peroxide. The peroxide liquid can be injected to co-kneader from hollow pins, which provides a free adaptation in barrel position and high outstanding mixing effect due to peroxide injected to polymer directly. 
The co-kneader has mild shearing to the whole process, and an easy switch-over is realized. 

SJW CZPT Type Cascade Three Flights Co-Kneader Compound Extruder for XLPE Peroxide cross-linked Compounds

The CZPT SJW Three flights compouding system,each spiral is broken by 3 gaps per revolution to locate the kneading flights, 3 rows of kneading pins,which are individually inserted in the barrel per 120 degree. The reciprocating wobble-box synchronizes the shaft rotation and oscillation so that each revolution of the screw is accompanied by 1 full stroke forward and backwards.This ensures optimal distributive and dispersive mixing with minimal energy consumption.

Advantages of the CZPT Co-kneader

The Co-Kneader, a mild-shear rotating and reciprocating single-screw extruder, is designed for shear and temperature sensitive compounds. The flights on the screw are interrupted and interqct with 3 rows of stationarv kneadina pins located in the barrel wall. The interaction between the moving flights and the stationary pins provide dispersive and distributive mixing simultaneously. Axially opened split barrel guarantees ease of cleaning. Those splined, segmented screw elements and pins can be changed easily according to different processing techniques. In addition, some pins are hollow inside, thermocouples can be inserted to get the accu- rate temperature of the materials inside the barrels, so as to liquid additives injection. Different from other extruders, the kneading process is achieved radially and axially at the same time. All in all, Co-Kneader has outstanding kneading, mixing efficiency and high degree of self-wiping. It is the most suitable for compounding purposes.

Cascade two-stage co-kneader system for XLPE Peroxide cross-linked Compounds Compounding: Co-kneader and discharging extruder build up 2 stage compounding system. 


Advantage of the compounding system:

–Lower energy input, lower melt temperatures
–Extremely homogeneous mixing, no shear spikes, equal treatment of polymer matrix
–High degree of self-wiping and have no dead spot
–Dispersive mixing without destroying delicate fllers
–High volumetric loadings of fllers and additives
–Efficient blending of liquid components
–Broad application for compounding without changing hardware
–Axially opened split barrel guarantees ease of cleaning and fast maintenance
–Replacement parts, such as screws, barrel CZPT and pins can be changed individually


XLPE peroxide cross-linked Compounds:                                                                                                                              

–For 35KVA cables


Model SKW-85 SKW-105 SKW-125
Screw Diameter 85 105 105
Length Diameter Ratio 15-22 15-22 15-22
Max.Screw Speed 600 600 600
Main Motor Power 110-160 200-280 350-450
Second-stage screw diameter 150 180 220
Second-stage L/D 7 7 7
Max.Screw Speed 60 60 60

Second-stage motor power 50 50 50





Details Images



Standard Length Splined Shafts

Standard Length Splined Shafts are made from Mild Steel and are perfect for most repair jobs, custom machinery building, and many other applications. All stock splined shafts are 2-3/4 inches in length, and full splines are available in any length, with additional materials and working lengths available upon request and quotation. CZPT Manufacturing Company is proud to offer these standard length shafts.

Disc brake mounting interfaces that are splined

There are 2 common disc brake mounting interfaces, splined and center lock. Disc brakes with splined interfaces are more common. They are usually easier to install. The center lock system requires a tool to remove the locking ring on the disc hub. Six-bolt rotors are easier to install and require only 6 bolts. The center lock system is commonly used with performance road bikes.
Post mount disc brakes require a post mount adapter, while flat mount disc brakes do not. Post mount adapters are more common and are used for carbon mountain bikes, while flat mount interfaces are becoming the norm on road and gravel bikes. All disc brake adapters are adjustable for rotor size, though. Road bikes usually use 160mm rotors while mountain bikes use rotors that are 180mm or 200mm.

Disc brake mounting interfaces that are helical splined

A helical splined disc brake mounting interface is designed with a splined connection between the hub and brake disc. This splined connection allows for a relatively large amount of radial and rotational displacement between the disc and hub. A loosely splined interface can cause a rattling noise due to the movement of the disc in relation to the hub.
The splines on the brake disc and hub are connected via an air gap. The air gap helps reduce heat conduction from the brake disc to the hub. The present invention addresses problems of noise, heat, and retraction of brake discs at the release of the brake. It also addresses issues with skewing and dragging. If you’re unsure whether this type of mounting interface is right for you, consult your mechanic.
Disc brake mounting interfaces that are helix-splined may be used in conjunction with other components of a wheel. They are particularly useful in disc brake mounting interfaces for hub-to-hub assemblies. The spacer elements, which are preferably located circumferentially, provide substantially the same function no matter how the brake disc rotates. Preferably, 3 spacer elements are located around the brake disc. Each of these spacer elements has equal clearance between the splines of the brake disc and the hub.
Spacer elements 6 include a helical spring portion 6.1 and extensions in tangential directions that terminate in hooks 6.4. These hooks abut against the brake disc 1 in both directions. The helical spring portion 5.1 and 6.1 have stiffness enough to absorb radial impacts. The spacer elements are arranged around the circumference of the intermeshing zone.
A helical splined disc mount includes a stabilizing element formed as a helical spring. The helical spring extends to the disc’s splines and teeth. The ends of the extension extend in opposite directions, while brackets at each end engage with the disc’s splines and teeth. This stabilizing element is positioned axially over the disc’s width.
Helical splined disc brake mounting interfaces are popular in bicycles and road bicycles. They’re a reliable, durable way to mount your brakes. Splines are widely used in aerospace, and have a higher fatigue life and reliability. The interfaces between the splined disc brake and BB spindle are made from aluminum and acetate.
As the splined hub mounts the disc in a helical fashion, the spring wire and disc 2 will be positioned in close contact. As the spring wire contacts the disc, it creates friction forces that are evenly distributed throughout the disc. This allows for a wide range of axial motion. Disc brake mounting interfaces that are helical splined have higher strength and stiffness than their counterparts.
Disc brake mounting interfaces that are helically splined can have a wide range of splined surfaces. The splined surfaces are the most common type of disc brake mounting interfaces. They are typically made of stainless steel or aluminum and can be used for a variety of applications. However, a splined disc mount will not support a disc with an oversized brake caliper.

China OEM Peroxide XLPE Production Line Co-Kneader Compounding Extruder Machine     near me factory China OEM Peroxide XLPE Production Line Co-Kneader Compounding Extruder Machine     near me factory

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