Kangju Machine specializes in manufacturing high-quality plastic extrusion equipments. Including plastic pipe extrusion line, plastic sheet production line, plastic profile extrusion line, plastic plate extrusion line.
Kangju Machine specializes in manufacturing high-quality plastic extrusion equipments. Including plastic pipe extrusion line, plastic sheet production line, plastic profile extrusion line, plastic plate extrusion line.
The polyamide thermal breaks extrusion line is special equipment used to produce nylon insulation strips (PA66+GF25) for building doors and windows.
The polyamide thermal breaks extrusion line is special equipment used to produce nylon insulation strips (PA66+GF25) for building doors and windows. Its core process is to extrude the mixed raw materials through high-temperature melting. The main equipment of the The polyamide thermal breaks production line includes: twin-screw extruder, mold system, cooling water tank, haul-off unit, and automatic cutting machine.
When the polyamide thermal breaks production line is running, the pre-dried nylon glass fiber particles are plasticized by the extruder and formed into a “C” or “I” type composite structure blank through a multi-cavity precision mold, and then enter the gradient cooling water tank to eliminate internal stress and solidify. The traction system maintains a stable line speed (usually 15-30m/min) through servo control, and the end is equipped with a flying saw or laser cutting to achieve precise slitting. The key control points include melt temperature (240-280℃), vacuum shaping negative pressure (0.06-0.1MPa) and cooling water temperature difference (segmented control within ±2℃) to ensure the product’s mechanical strength (≥24MPa) and dimensional accuracy (±0.1mm).
Polyamide thermal breaks are mainly used in thermally insulated aluminum profiles for building doors, windows and curtain walls. Their core function is to block the heat conduction of the metal frame and improve the thermal insulation performance of the overall structure. The polyamide thermal breaks are also used in refrigeration equipment, rail transit vehicles (such as high-speed rail window frames) and solar panels.
What is polyamide thermal break?
Polyamide thermal break is an insulating strip, usually made of glass-fiber-reinforced nylon (PA66 GF25), that is mechanically joined between the inner and outer sections of an aluminum window, door, or facade profile.
What materials can this extrusion line process?
The polyamide thermal breaks extrusion line is primarily designed for PA66 + 25% GF (Glass Fiber). However, with specific screw adjustments, some lines can also process other engineering plastics like ABS or PVC.
How many strips can be extruded simultaneously?
Standard polyamide thermal breaks production lin usually support 2 to 10 cavities (strips) at once, depending on the width and complexity of the profile shape.
Why is a vacuum dryer necessary for PA66?
Polyamide is highly hygroscopic (absorbs moisture). If not dried to a moisture content below 0.2%, the strips will have bubbles and poor mechanical strength.
Can the mold be changed for different strip shapes (I, C, T, or O-type)?
Yes, the molds are modular. You can swap the mold plate to produce different geometries using the same extrusion base.
How do I choose the right plastic extrusion line for my business?
The choice depends on your specific needs, including the type of plastic you will process, the desired final product, required production capacity (throughput), and your budget. A good manufacturer will offer consultation to help you choose the right machine and plastic extrusion line configuration.
How much does plastic extrusion line cost?
The cost can vary significantly depending on the machine’s size, type (single vs. twin screw), production capacity, level of automation, and the inclusion of downstream equipment. It’s important to consider the total cost of ownership, including energy consumption, maintenance, and spare parts.
How do you handle shipping, installation, and commissioning?
We will outline the process for delivery, installation at the customer’s facility, and commissioning to ensure the machine is set up and running correctly.
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